A library for setting up Secure Socket Layer (SSL) connections and verifying remote hosts using certificates. Contains only the source files for mbed platform implementation of the library.
Dependents: HTTPClient-SSL HTTPClient-SSL HTTPClient-SSL HTTPClient-SSL
ctaocrypt/src/aes.c@0:b86d15c6ba29, 2015-01-19 (annotated)
- Committer:
- Vanger
- Date:
- Mon Jan 19 21:45:42 2015 +0000
- Revision:
- 0:b86d15c6ba29
Updated CyaSSL Library to 3.3.0. Changed Settings and functions to be implemented for mbed platforms
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Vanger | 0:b86d15c6ba29 | 1 | /* aes.c |
Vanger | 0:b86d15c6ba29 | 2 | * |
Vanger | 0:b86d15c6ba29 | 3 | * Copyright (C) 2006-2014 wolfSSL Inc. |
Vanger | 0:b86d15c6ba29 | 4 | * |
Vanger | 0:b86d15c6ba29 | 5 | * This file is part of CyaSSL. |
Vanger | 0:b86d15c6ba29 | 6 | * |
Vanger | 0:b86d15c6ba29 | 7 | * CyaSSL is free software; you can redistribute it and/or modify |
Vanger | 0:b86d15c6ba29 | 8 | * it under the terms of the GNU General Public License as published by |
Vanger | 0:b86d15c6ba29 | 9 | * the Free Software Foundation; either version 2 of the License, or |
Vanger | 0:b86d15c6ba29 | 10 | * (at your option) any later version. |
Vanger | 0:b86d15c6ba29 | 11 | * |
Vanger | 0:b86d15c6ba29 | 12 | * CyaSSL is distributed in the hope that it will be useful, |
Vanger | 0:b86d15c6ba29 | 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
Vanger | 0:b86d15c6ba29 | 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
Vanger | 0:b86d15c6ba29 | 15 | * GNU General Public License for more details. |
Vanger | 0:b86d15c6ba29 | 16 | * |
Vanger | 0:b86d15c6ba29 | 17 | * You should have received a copy of the GNU General Public License |
Vanger | 0:b86d15c6ba29 | 18 | * along with this program; if not, write to the Free Software |
Vanger | 0:b86d15c6ba29 | 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA |
Vanger | 0:b86d15c6ba29 | 20 | */ |
Vanger | 0:b86d15c6ba29 | 21 | |
Vanger | 0:b86d15c6ba29 | 22 | #ifdef HAVE_CONFIG_H |
Vanger | 0:b86d15c6ba29 | 23 | #include <config.h> |
Vanger | 0:b86d15c6ba29 | 24 | #endif |
Vanger | 0:b86d15c6ba29 | 25 | |
Vanger | 0:b86d15c6ba29 | 26 | #include <cyassl/ctaocrypt/settings.h> |
Vanger | 0:b86d15c6ba29 | 27 | |
Vanger | 0:b86d15c6ba29 | 28 | #ifndef NO_AES |
Vanger | 0:b86d15c6ba29 | 29 | |
Vanger | 0:b86d15c6ba29 | 30 | #ifdef HAVE_FIPS |
Vanger | 0:b86d15c6ba29 | 31 | /* set NO_WRAPPERS before headers, use direct internal f()s not wrappers */ |
Vanger | 0:b86d15c6ba29 | 32 | #define FIPS_NO_WRAPPERS |
Vanger | 0:b86d15c6ba29 | 33 | #endif |
Vanger | 0:b86d15c6ba29 | 34 | |
Vanger | 0:b86d15c6ba29 | 35 | #include <cyassl/ctaocrypt/aes.h> |
Vanger | 0:b86d15c6ba29 | 36 | #include <cyassl/ctaocrypt/error-crypt.h> |
Vanger | 0:b86d15c6ba29 | 37 | #include <cyassl/ctaocrypt/logging.h> |
Vanger | 0:b86d15c6ba29 | 38 | #ifdef NO_INLINE |
Vanger | 0:b86d15c6ba29 | 39 | #include <cyassl/ctaocrypt/misc.h> |
Vanger | 0:b86d15c6ba29 | 40 | #else |
Vanger | 0:b86d15c6ba29 | 41 | #include <ctaocrypt/src/misc.c> |
Vanger | 0:b86d15c6ba29 | 42 | #endif |
Vanger | 0:b86d15c6ba29 | 43 | #ifdef DEBUG_AESNI |
Vanger | 0:b86d15c6ba29 | 44 | #include <stdio.h> |
Vanger | 0:b86d15c6ba29 | 45 | #endif |
Vanger | 0:b86d15c6ba29 | 46 | |
Vanger | 0:b86d15c6ba29 | 47 | |
Vanger | 0:b86d15c6ba29 | 48 | #ifdef _MSC_VER |
Vanger | 0:b86d15c6ba29 | 49 | /* 4127 warning constant while(1) */ |
Vanger | 0:b86d15c6ba29 | 50 | #pragma warning(disable: 4127) |
Vanger | 0:b86d15c6ba29 | 51 | #endif |
Vanger | 0:b86d15c6ba29 | 52 | |
Vanger | 0:b86d15c6ba29 | 53 | |
Vanger | 0:b86d15c6ba29 | 54 | #if defined(STM32F2_CRYPTO) |
Vanger | 0:b86d15c6ba29 | 55 | /* STM32F2 hardware AES support for CBC, CTR modes through the STM32F2 |
Vanger | 0:b86d15c6ba29 | 56 | * Standard Peripheral Library. Documentation located in STM32F2xx |
Vanger | 0:b86d15c6ba29 | 57 | * Standard Peripheral Library document (See note in README). |
Vanger | 0:b86d15c6ba29 | 58 | * NOTE: no support for AES-GCM/CCM/Direct */ |
Vanger | 0:b86d15c6ba29 | 59 | #include "stm32f2xx.h" |
Vanger | 0:b86d15c6ba29 | 60 | #include "stm32f2xx_cryp.h" |
Vanger | 0:b86d15c6ba29 | 61 | #elif defined(HAVE_COLDFIRE_SEC) |
Vanger | 0:b86d15c6ba29 | 62 | /* Freescale Coldfire SEC support for CBC mode. |
Vanger | 0:b86d15c6ba29 | 63 | * NOTE: no support for AES-CTR/GCM/CCM/Direct */ |
Vanger | 0:b86d15c6ba29 | 64 | #include <cyassl/ctaocrypt/types.h> |
Vanger | 0:b86d15c6ba29 | 65 | #include "sec.h" |
Vanger | 0:b86d15c6ba29 | 66 | #include "mcf5475_sec.h" |
Vanger | 0:b86d15c6ba29 | 67 | #include "mcf5475_siu.h" |
Vanger | 0:b86d15c6ba29 | 68 | #elif defined(FREESCALE_MMCAU) |
Vanger | 0:b86d15c6ba29 | 69 | /* Freescale mmCAU hardware AES support for Direct, CBC, CCM, GCM modes |
Vanger | 0:b86d15c6ba29 | 70 | * through the CAU/mmCAU library. Documentation located in |
Vanger | 0:b86d15c6ba29 | 71 | * ColdFire/ColdFire+ CAU and Kinetis mmCAU Software Library User |
Vanger | 0:b86d15c6ba29 | 72 | * Guide (See note in README). |
Vanger | 0:b86d15c6ba29 | 73 | * NOTE: no support for AES-CTR */ |
Vanger | 0:b86d15c6ba29 | 74 | #include "cau_api.h" |
Vanger | 0:b86d15c6ba29 | 75 | #elif defined(CYASSL_PIC32MZ_CRYPT) |
Vanger | 0:b86d15c6ba29 | 76 | /* NOTE: no support for AES-CCM/Direct */ |
Vanger | 0:b86d15c6ba29 | 77 | #define DEBUG_CYASSL |
Vanger | 0:b86d15c6ba29 | 78 | #include "cyassl/ctaocrypt/port/pic32/pic32mz-crypt.h" |
Vanger | 0:b86d15c6ba29 | 79 | #elif defined(HAVE_CAVIUM) |
Vanger | 0:b86d15c6ba29 | 80 | #include <cyassl/ctaocrypt/logging.h> |
Vanger | 0:b86d15c6ba29 | 81 | #include "cavium_common.h" |
Vanger | 0:b86d15c6ba29 | 82 | |
Vanger | 0:b86d15c6ba29 | 83 | /* still leave SW crypto available */ |
Vanger | 0:b86d15c6ba29 | 84 | #define NEED_AES_TABLES |
Vanger | 0:b86d15c6ba29 | 85 | |
Vanger | 0:b86d15c6ba29 | 86 | static int AesCaviumSetKey(Aes* aes, const byte* key, word32 length, |
Vanger | 0:b86d15c6ba29 | 87 | const byte* iv); |
Vanger | 0:b86d15c6ba29 | 88 | static int AesCaviumCbcEncrypt(Aes* aes, byte* out, const byte* in, |
Vanger | 0:b86d15c6ba29 | 89 | word32 length); |
Vanger | 0:b86d15c6ba29 | 90 | static int AesCaviumCbcDecrypt(Aes* aes, byte* out, const byte* in, |
Vanger | 0:b86d15c6ba29 | 91 | word32 length); |
Vanger | 0:b86d15c6ba29 | 92 | #else |
Vanger | 0:b86d15c6ba29 | 93 | /* using CTaoCrypt software AES implementation */ |
Vanger | 0:b86d15c6ba29 | 94 | #define NEED_AES_TABLES |
Vanger | 0:b86d15c6ba29 | 95 | #endif /* STM32F2_CRYPTO */ |
Vanger | 0:b86d15c6ba29 | 96 | |
Vanger | 0:b86d15c6ba29 | 97 | |
Vanger | 0:b86d15c6ba29 | 98 | #ifdef NEED_AES_TABLES |
Vanger | 0:b86d15c6ba29 | 99 | |
Vanger | 0:b86d15c6ba29 | 100 | static const word32 rcon[] = { |
Vanger | 0:b86d15c6ba29 | 101 | 0x01000000, 0x02000000, 0x04000000, 0x08000000, |
Vanger | 0:b86d15c6ba29 | 102 | 0x10000000, 0x20000000, 0x40000000, 0x80000000, |
Vanger | 0:b86d15c6ba29 | 103 | 0x1B000000, 0x36000000, |
Vanger | 0:b86d15c6ba29 | 104 | /* for 128-bit blocks, Rijndael never uses more than 10 rcon values */ |
Vanger | 0:b86d15c6ba29 | 105 | }; |
Vanger | 0:b86d15c6ba29 | 106 | |
Vanger | 0:b86d15c6ba29 | 107 | static const word32 Te[5][256] = { |
Vanger | 0:b86d15c6ba29 | 108 | { |
Vanger | 0:b86d15c6ba29 | 109 | 0xc66363a5U, 0xf87c7c84U, 0xee777799U, 0xf67b7b8dU, |
Vanger | 0:b86d15c6ba29 | 110 | 0xfff2f20dU, 0xd66b6bbdU, 0xde6f6fb1U, 0x91c5c554U, |
Vanger | 0:b86d15c6ba29 | 111 | 0x60303050U, 0x02010103U, 0xce6767a9U, 0x562b2b7dU, |
Vanger | 0:b86d15c6ba29 | 112 | 0xe7fefe19U, 0xb5d7d762U, 0x4dababe6U, 0xec76769aU, |
Vanger | 0:b86d15c6ba29 | 113 | 0x8fcaca45U, 0x1f82829dU, 0x89c9c940U, 0xfa7d7d87U, |
Vanger | 0:b86d15c6ba29 | 114 | 0xeffafa15U, 0xb25959ebU, 0x8e4747c9U, 0xfbf0f00bU, |
Vanger | 0:b86d15c6ba29 | 115 | 0x41adadecU, 0xb3d4d467U, 0x5fa2a2fdU, 0x45afafeaU, |
Vanger | 0:b86d15c6ba29 | 116 | 0x239c9cbfU, 0x53a4a4f7U, 0xe4727296U, 0x9bc0c05bU, |
Vanger | 0:b86d15c6ba29 | 117 | 0x75b7b7c2U, 0xe1fdfd1cU, 0x3d9393aeU, 0x4c26266aU, |
Vanger | 0:b86d15c6ba29 | 118 | 0x6c36365aU, 0x7e3f3f41U, 0xf5f7f702U, 0x83cccc4fU, |
Vanger | 0:b86d15c6ba29 | 119 | 0x6834345cU, 0x51a5a5f4U, 0xd1e5e534U, 0xf9f1f108U, |
Vanger | 0:b86d15c6ba29 | 120 | 0xe2717193U, 0xabd8d873U, 0x62313153U, 0x2a15153fU, |
Vanger | 0:b86d15c6ba29 | 121 | 0x0804040cU, 0x95c7c752U, 0x46232365U, 0x9dc3c35eU, |
Vanger | 0:b86d15c6ba29 | 122 | 0x30181828U, 0x379696a1U, 0x0a05050fU, 0x2f9a9ab5U, |
Vanger | 0:b86d15c6ba29 | 123 | 0x0e070709U, 0x24121236U, 0x1b80809bU, 0xdfe2e23dU, |
Vanger | 0:b86d15c6ba29 | 124 | 0xcdebeb26U, 0x4e272769U, 0x7fb2b2cdU, 0xea75759fU, |
Vanger | 0:b86d15c6ba29 | 125 | 0x1209091bU, 0x1d83839eU, 0x582c2c74U, 0x341a1a2eU, |
Vanger | 0:b86d15c6ba29 | 126 | 0x361b1b2dU, 0xdc6e6eb2U, 0xb45a5aeeU, 0x5ba0a0fbU, |
Vanger | 0:b86d15c6ba29 | 127 | 0xa45252f6U, 0x763b3b4dU, 0xb7d6d661U, 0x7db3b3ceU, |
Vanger | 0:b86d15c6ba29 | 128 | 0x5229297bU, 0xdde3e33eU, 0x5e2f2f71U, 0x13848497U, |
Vanger | 0:b86d15c6ba29 | 129 | 0xa65353f5U, 0xb9d1d168U, 0x00000000U, 0xc1eded2cU, |
Vanger | 0:b86d15c6ba29 | 130 | 0x40202060U, 0xe3fcfc1fU, 0x79b1b1c8U, 0xb65b5bedU, |
Vanger | 0:b86d15c6ba29 | 131 | 0xd46a6abeU, 0x8dcbcb46U, 0x67bebed9U, 0x7239394bU, |
Vanger | 0:b86d15c6ba29 | 132 | 0x944a4adeU, 0x984c4cd4U, 0xb05858e8U, 0x85cfcf4aU, |
Vanger | 0:b86d15c6ba29 | 133 | 0xbbd0d06bU, 0xc5efef2aU, 0x4faaaae5U, 0xedfbfb16U, |
Vanger | 0:b86d15c6ba29 | 134 | 0x864343c5U, 0x9a4d4dd7U, 0x66333355U, 0x11858594U, |
Vanger | 0:b86d15c6ba29 | 135 | 0x8a4545cfU, 0xe9f9f910U, 0x04020206U, 0xfe7f7f81U, |
Vanger | 0:b86d15c6ba29 | 136 | 0xa05050f0U, 0x783c3c44U, 0x259f9fbaU, 0x4ba8a8e3U, |
Vanger | 0:b86d15c6ba29 | 137 | 0xa25151f3U, 0x5da3a3feU, 0x804040c0U, 0x058f8f8aU, |
Vanger | 0:b86d15c6ba29 | 138 | 0x3f9292adU, 0x219d9dbcU, 0x70383848U, 0xf1f5f504U, |
Vanger | 0:b86d15c6ba29 | 139 | 0x63bcbcdfU, 0x77b6b6c1U, 0xafdada75U, 0x42212163U, |
Vanger | 0:b86d15c6ba29 | 140 | 0x20101030U, 0xe5ffff1aU, 0xfdf3f30eU, 0xbfd2d26dU, |
Vanger | 0:b86d15c6ba29 | 141 | 0x81cdcd4cU, 0x180c0c14U, 0x26131335U, 0xc3ecec2fU, |
Vanger | 0:b86d15c6ba29 | 142 | 0xbe5f5fe1U, 0x359797a2U, 0x884444ccU, 0x2e171739U, |
Vanger | 0:b86d15c6ba29 | 143 | 0x93c4c457U, 0x55a7a7f2U, 0xfc7e7e82U, 0x7a3d3d47U, |
Vanger | 0:b86d15c6ba29 | 144 | 0xc86464acU, 0xba5d5de7U, 0x3219192bU, 0xe6737395U, |
Vanger | 0:b86d15c6ba29 | 145 | 0xc06060a0U, 0x19818198U, 0x9e4f4fd1U, 0xa3dcdc7fU, |
Vanger | 0:b86d15c6ba29 | 146 | 0x44222266U, 0x542a2a7eU, 0x3b9090abU, 0x0b888883U, |
Vanger | 0:b86d15c6ba29 | 147 | 0x8c4646caU, 0xc7eeee29U, 0x6bb8b8d3U, 0x2814143cU, |
Vanger | 0:b86d15c6ba29 | 148 | 0xa7dede79U, 0xbc5e5ee2U, 0x160b0b1dU, 0xaddbdb76U, |
Vanger | 0:b86d15c6ba29 | 149 | 0xdbe0e03bU, 0x64323256U, 0x743a3a4eU, 0x140a0a1eU, |
Vanger | 0:b86d15c6ba29 | 150 | 0x924949dbU, 0x0c06060aU, 0x4824246cU, 0xb85c5ce4U, |
Vanger | 0:b86d15c6ba29 | 151 | 0x9fc2c25dU, 0xbdd3d36eU, 0x43acacefU, 0xc46262a6U, |
Vanger | 0:b86d15c6ba29 | 152 | 0x399191a8U, 0x319595a4U, 0xd3e4e437U, 0xf279798bU, |
Vanger | 0:b86d15c6ba29 | 153 | 0xd5e7e732U, 0x8bc8c843U, 0x6e373759U, 0xda6d6db7U, |
Vanger | 0:b86d15c6ba29 | 154 | 0x018d8d8cU, 0xb1d5d564U, 0x9c4e4ed2U, 0x49a9a9e0U, |
Vanger | 0:b86d15c6ba29 | 155 | 0xd86c6cb4U, 0xac5656faU, 0xf3f4f407U, 0xcfeaea25U, |
Vanger | 0:b86d15c6ba29 | 156 | 0xca6565afU, 0xf47a7a8eU, 0x47aeaee9U, 0x10080818U, |
Vanger | 0:b86d15c6ba29 | 157 | 0x6fbabad5U, 0xf0787888U, 0x4a25256fU, 0x5c2e2e72U, |
Vanger | 0:b86d15c6ba29 | 158 | 0x381c1c24U, 0x57a6a6f1U, 0x73b4b4c7U, 0x97c6c651U, |
Vanger | 0:b86d15c6ba29 | 159 | 0xcbe8e823U, 0xa1dddd7cU, 0xe874749cU, 0x3e1f1f21U, |
Vanger | 0:b86d15c6ba29 | 160 | 0x964b4bddU, 0x61bdbddcU, 0x0d8b8b86U, 0x0f8a8a85U, |
Vanger | 0:b86d15c6ba29 | 161 | 0xe0707090U, 0x7c3e3e42U, 0x71b5b5c4U, 0xcc6666aaU, |
Vanger | 0:b86d15c6ba29 | 162 | 0x904848d8U, 0x06030305U, 0xf7f6f601U, 0x1c0e0e12U, |
Vanger | 0:b86d15c6ba29 | 163 | 0xc26161a3U, 0x6a35355fU, 0xae5757f9U, 0x69b9b9d0U, |
Vanger | 0:b86d15c6ba29 | 164 | 0x17868691U, 0x99c1c158U, 0x3a1d1d27U, 0x279e9eb9U, |
Vanger | 0:b86d15c6ba29 | 165 | 0xd9e1e138U, 0xebf8f813U, 0x2b9898b3U, 0x22111133U, |
Vanger | 0:b86d15c6ba29 | 166 | 0xd26969bbU, 0xa9d9d970U, 0x078e8e89U, 0x339494a7U, |
Vanger | 0:b86d15c6ba29 | 167 | 0x2d9b9bb6U, 0x3c1e1e22U, 0x15878792U, 0xc9e9e920U, |
Vanger | 0:b86d15c6ba29 | 168 | 0x87cece49U, 0xaa5555ffU, 0x50282878U, 0xa5dfdf7aU, |
Vanger | 0:b86d15c6ba29 | 169 | 0x038c8c8fU, 0x59a1a1f8U, 0x09898980U, 0x1a0d0d17U, |
Vanger | 0:b86d15c6ba29 | 170 | 0x65bfbfdaU, 0xd7e6e631U, 0x844242c6U, 0xd06868b8U, |
Vanger | 0:b86d15c6ba29 | 171 | 0x824141c3U, 0x299999b0U, 0x5a2d2d77U, 0x1e0f0f11U, |
Vanger | 0:b86d15c6ba29 | 172 | 0x7bb0b0cbU, 0xa85454fcU, 0x6dbbbbd6U, 0x2c16163aU, |
Vanger | 0:b86d15c6ba29 | 173 | }, |
Vanger | 0:b86d15c6ba29 | 174 | { |
Vanger | 0:b86d15c6ba29 | 175 | 0xa5c66363U, 0x84f87c7cU, 0x99ee7777U, 0x8df67b7bU, |
Vanger | 0:b86d15c6ba29 | 176 | 0x0dfff2f2U, 0xbdd66b6bU, 0xb1de6f6fU, 0x5491c5c5U, |
Vanger | 0:b86d15c6ba29 | 177 | 0x50603030U, 0x03020101U, 0xa9ce6767U, 0x7d562b2bU, |
Vanger | 0:b86d15c6ba29 | 178 | 0x19e7fefeU, 0x62b5d7d7U, 0xe64dababU, 0x9aec7676U, |
Vanger | 0:b86d15c6ba29 | 179 | 0x458fcacaU, 0x9d1f8282U, 0x4089c9c9U, 0x87fa7d7dU, |
Vanger | 0:b86d15c6ba29 | 180 | 0x15effafaU, 0xebb25959U, 0xc98e4747U, 0x0bfbf0f0U, |
Vanger | 0:b86d15c6ba29 | 181 | 0xec41adadU, 0x67b3d4d4U, 0xfd5fa2a2U, 0xea45afafU, |
Vanger | 0:b86d15c6ba29 | 182 | 0xbf239c9cU, 0xf753a4a4U, 0x96e47272U, 0x5b9bc0c0U, |
Vanger | 0:b86d15c6ba29 | 183 | 0xc275b7b7U, 0x1ce1fdfdU, 0xae3d9393U, 0x6a4c2626U, |
Vanger | 0:b86d15c6ba29 | 184 | 0x5a6c3636U, 0x417e3f3fU, 0x02f5f7f7U, 0x4f83ccccU, |
Vanger | 0:b86d15c6ba29 | 185 | 0x5c683434U, 0xf451a5a5U, 0x34d1e5e5U, 0x08f9f1f1U, |
Vanger | 0:b86d15c6ba29 | 186 | 0x93e27171U, 0x73abd8d8U, 0x53623131U, 0x3f2a1515U, |
Vanger | 0:b86d15c6ba29 | 187 | 0x0c080404U, 0x5295c7c7U, 0x65462323U, 0x5e9dc3c3U, |
Vanger | 0:b86d15c6ba29 | 188 | 0x28301818U, 0xa1379696U, 0x0f0a0505U, 0xb52f9a9aU, |
Vanger | 0:b86d15c6ba29 | 189 | 0x090e0707U, 0x36241212U, 0x9b1b8080U, 0x3ddfe2e2U, |
Vanger | 0:b86d15c6ba29 | 190 | 0x26cdebebU, 0x694e2727U, 0xcd7fb2b2U, 0x9fea7575U, |
Vanger | 0:b86d15c6ba29 | 191 | 0x1b120909U, 0x9e1d8383U, 0x74582c2cU, 0x2e341a1aU, |
Vanger | 0:b86d15c6ba29 | 192 | 0x2d361b1bU, 0xb2dc6e6eU, 0xeeb45a5aU, 0xfb5ba0a0U, |
Vanger | 0:b86d15c6ba29 | 193 | 0xf6a45252U, 0x4d763b3bU, 0x61b7d6d6U, 0xce7db3b3U, |
Vanger | 0:b86d15c6ba29 | 194 | 0x7b522929U, 0x3edde3e3U, 0x715e2f2fU, 0x97138484U, |
Vanger | 0:b86d15c6ba29 | 195 | 0xf5a65353U, 0x68b9d1d1U, 0x00000000U, 0x2cc1ededU, |
Vanger | 0:b86d15c6ba29 | 196 | 0x60402020U, 0x1fe3fcfcU, 0xc879b1b1U, 0xedb65b5bU, |
Vanger | 0:b86d15c6ba29 | 197 | 0xbed46a6aU, 0x468dcbcbU, 0xd967bebeU, 0x4b723939U, |
Vanger | 0:b86d15c6ba29 | 198 | 0xde944a4aU, 0xd4984c4cU, 0xe8b05858U, 0x4a85cfcfU, |
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Vanger | 0:b86d15c6ba29 | 348 | 0x4949db92U, 0x06060a0cU, 0x24246c48U, 0x5c5ce4b8U, |
Vanger | 0:b86d15c6ba29 | 349 | 0xc2c25d9fU, 0xd3d36ebdU, 0xacacef43U, 0x6262a6c4U, |
Vanger | 0:b86d15c6ba29 | 350 | 0x9191a839U, 0x9595a431U, 0xe4e437d3U, 0x79798bf2U, |
Vanger | 0:b86d15c6ba29 | 351 | 0xe7e732d5U, 0xc8c8438bU, 0x3737596eU, 0x6d6db7daU, |
Vanger | 0:b86d15c6ba29 | 352 | 0x8d8d8c01U, 0xd5d564b1U, 0x4e4ed29cU, 0xa9a9e049U, |
Vanger | 0:b86d15c6ba29 | 353 | 0x6c6cb4d8U, 0x5656faacU, 0xf4f407f3U, 0xeaea25cfU, |
Vanger | 0:b86d15c6ba29 | 354 | 0x6565afcaU, 0x7a7a8ef4U, 0xaeaee947U, 0x08081810U, |
Vanger | 0:b86d15c6ba29 | 355 | 0xbabad56fU, 0x787888f0U, 0x25256f4aU, 0x2e2e725cU, |
Vanger | 0:b86d15c6ba29 | 356 | 0x1c1c2438U, 0xa6a6f157U, 0xb4b4c773U, 0xc6c65197U, |
Vanger | 0:b86d15c6ba29 | 357 | 0xe8e823cbU, 0xdddd7ca1U, 0x74749ce8U, 0x1f1f213eU, |
Vanger | 0:b86d15c6ba29 | 358 | 0x4b4bdd96U, 0xbdbddc61U, 0x8b8b860dU, 0x8a8a850fU, |
Vanger | 0:b86d15c6ba29 | 359 | 0x707090e0U, 0x3e3e427cU, 0xb5b5c471U, 0x6666aaccU, |
Vanger | 0:b86d15c6ba29 | 360 | 0x4848d890U, 0x03030506U, 0xf6f601f7U, 0x0e0e121cU, |
Vanger | 0:b86d15c6ba29 | 361 | 0x6161a3c2U, 0x35355f6aU, 0x5757f9aeU, 0xb9b9d069U, |
Vanger | 0:b86d15c6ba29 | 362 | 0x86869117U, 0xc1c15899U, 0x1d1d273aU, 0x9e9eb927U, |
Vanger | 0:b86d15c6ba29 | 363 | 0xe1e138d9U, 0xf8f813ebU, 0x9898b32bU, 0x11113322U, |
Vanger | 0:b86d15c6ba29 | 364 | 0x6969bbd2U, 0xd9d970a9U, 0x8e8e8907U, 0x9494a733U, |
Vanger | 0:b86d15c6ba29 | 365 | 0x9b9bb62dU, 0x1e1e223cU, 0x87879215U, 0xe9e920c9U, |
Vanger | 0:b86d15c6ba29 | 366 | 0xcece4987U, 0x5555ffaaU, 0x28287850U, 0xdfdf7aa5U, |
Vanger | 0:b86d15c6ba29 | 367 | 0x8c8c8f03U, 0xa1a1f859U, 0x89898009U, 0x0d0d171aU, |
Vanger | 0:b86d15c6ba29 | 368 | 0xbfbfda65U, 0xe6e631d7U, 0x4242c684U, 0x6868b8d0U, |
Vanger | 0:b86d15c6ba29 | 369 | 0x4141c382U, 0x9999b029U, 0x2d2d775aU, 0x0f0f111eU, |
Vanger | 0:b86d15c6ba29 | 370 | 0xb0b0cb7bU, 0x5454fca8U, 0xbbbbd66dU, 0x16163a2cU, |
Vanger | 0:b86d15c6ba29 | 371 | }, |
Vanger | 0:b86d15c6ba29 | 372 | { |
Vanger | 0:b86d15c6ba29 | 373 | 0x63636363U, 0x7c7c7c7cU, 0x77777777U, 0x7b7b7b7bU, |
Vanger | 0:b86d15c6ba29 | 374 | 0xf2f2f2f2U, 0x6b6b6b6bU, 0x6f6f6f6fU, 0xc5c5c5c5U, |
Vanger | 0:b86d15c6ba29 | 375 | 0x30303030U, 0x01010101U, 0x67676767U, 0x2b2b2b2bU, |
Vanger | 0:b86d15c6ba29 | 376 | 0xfefefefeU, 0xd7d7d7d7U, 0xababababU, 0x76767676U, |
Vanger | 0:b86d15c6ba29 | 377 | 0xcacacacaU, 0x82828282U, 0xc9c9c9c9U, 0x7d7d7d7dU, |
Vanger | 0:b86d15c6ba29 | 378 | 0xfafafafaU, 0x59595959U, 0x47474747U, 0xf0f0f0f0U, |
Vanger | 0:b86d15c6ba29 | 379 | 0xadadadadU, 0xd4d4d4d4U, 0xa2a2a2a2U, 0xafafafafU, |
Vanger | 0:b86d15c6ba29 | 380 | 0x9c9c9c9cU, 0xa4a4a4a4U, 0x72727272U, 0xc0c0c0c0U, |
Vanger | 0:b86d15c6ba29 | 381 | 0xb7b7b7b7U, 0xfdfdfdfdU, 0x93939393U, 0x26262626U, |
Vanger | 0:b86d15c6ba29 | 382 | 0x36363636U, 0x3f3f3f3fU, 0xf7f7f7f7U, 0xccccccccU, |
Vanger | 0:b86d15c6ba29 | 383 | 0x34343434U, 0xa5a5a5a5U, 0xe5e5e5e5U, 0xf1f1f1f1U, |
Vanger | 0:b86d15c6ba29 | 384 | 0x71717171U, 0xd8d8d8d8U, 0x31313131U, 0x15151515U, |
Vanger | 0:b86d15c6ba29 | 385 | 0x04040404U, 0xc7c7c7c7U, 0x23232323U, 0xc3c3c3c3U, |
Vanger | 0:b86d15c6ba29 | 386 | 0x18181818U, 0x96969696U, 0x05050505U, 0x9a9a9a9aU, |
Vanger | 0:b86d15c6ba29 | 387 | 0x07070707U, 0x12121212U, 0x80808080U, 0xe2e2e2e2U, |
Vanger | 0:b86d15c6ba29 | 388 | 0xebebebebU, 0x27272727U, 0xb2b2b2b2U, 0x75757575U, |
Vanger | 0:b86d15c6ba29 | 389 | 0x09090909U, 0x83838383U, 0x2c2c2c2cU, 0x1a1a1a1aU, |
Vanger | 0:b86d15c6ba29 | 390 | 0x1b1b1b1bU, 0x6e6e6e6eU, 0x5a5a5a5aU, 0xa0a0a0a0U, |
Vanger | 0:b86d15c6ba29 | 391 | 0x52525252U, 0x3b3b3b3bU, 0xd6d6d6d6U, 0xb3b3b3b3U, |
Vanger | 0:b86d15c6ba29 | 392 | 0x29292929U, 0xe3e3e3e3U, 0x2f2f2f2fU, 0x84848484U, |
Vanger | 0:b86d15c6ba29 | 393 | 0x53535353U, 0xd1d1d1d1U, 0x00000000U, 0xededededU, |
Vanger | 0:b86d15c6ba29 | 394 | 0x20202020U, 0xfcfcfcfcU, 0xb1b1b1b1U, 0x5b5b5b5bU, |
Vanger | 0:b86d15c6ba29 | 395 | 0x6a6a6a6aU, 0xcbcbcbcbU, 0xbebebebeU, 0x39393939U, |
Vanger | 0:b86d15c6ba29 | 396 | 0x4a4a4a4aU, 0x4c4c4c4cU, 0x58585858U, 0xcfcfcfcfU, |
Vanger | 0:b86d15c6ba29 | 397 | 0xd0d0d0d0U, 0xefefefefU, 0xaaaaaaaaU, 0xfbfbfbfbU, |
Vanger | 0:b86d15c6ba29 | 398 | 0x43434343U, 0x4d4d4d4dU, 0x33333333U, 0x85858585U, |
Vanger | 0:b86d15c6ba29 | 399 | 0x45454545U, 0xf9f9f9f9U, 0x02020202U, 0x7f7f7f7fU, |
Vanger | 0:b86d15c6ba29 | 400 | 0x50505050U, 0x3c3c3c3cU, 0x9f9f9f9fU, 0xa8a8a8a8U, |
Vanger | 0:b86d15c6ba29 | 401 | 0x51515151U, 0xa3a3a3a3U, 0x40404040U, 0x8f8f8f8fU, |
Vanger | 0:b86d15c6ba29 | 402 | 0x92929292U, 0x9d9d9d9dU, 0x38383838U, 0xf5f5f5f5U, |
Vanger | 0:b86d15c6ba29 | 403 | 0xbcbcbcbcU, 0xb6b6b6b6U, 0xdadadadaU, 0x21212121U, |
Vanger | 0:b86d15c6ba29 | 404 | 0x10101010U, 0xffffffffU, 0xf3f3f3f3U, 0xd2d2d2d2U, |
Vanger | 0:b86d15c6ba29 | 405 | 0xcdcdcdcdU, 0x0c0c0c0cU, 0x13131313U, 0xececececU, |
Vanger | 0:b86d15c6ba29 | 406 | 0x5f5f5f5fU, 0x97979797U, 0x44444444U, 0x17171717U, |
Vanger | 0:b86d15c6ba29 | 407 | 0xc4c4c4c4U, 0xa7a7a7a7U, 0x7e7e7e7eU, 0x3d3d3d3dU, |
Vanger | 0:b86d15c6ba29 | 408 | 0x64646464U, 0x5d5d5d5dU, 0x19191919U, 0x73737373U, |
Vanger | 0:b86d15c6ba29 | 409 | 0x60606060U, 0x81818181U, 0x4f4f4f4fU, 0xdcdcdcdcU, |
Vanger | 0:b86d15c6ba29 | 410 | 0x22222222U, 0x2a2a2a2aU, 0x90909090U, 0x88888888U, |
Vanger | 0:b86d15c6ba29 | 411 | 0x46464646U, 0xeeeeeeeeU, 0xb8b8b8b8U, 0x14141414U, |
Vanger | 0:b86d15c6ba29 | 412 | 0xdedededeU, 0x5e5e5e5eU, 0x0b0b0b0bU, 0xdbdbdbdbU, |
Vanger | 0:b86d15c6ba29 | 413 | 0xe0e0e0e0U, 0x32323232U, 0x3a3a3a3aU, 0x0a0a0a0aU, |
Vanger | 0:b86d15c6ba29 | 414 | 0x49494949U, 0x06060606U, 0x24242424U, 0x5c5c5c5cU, |
Vanger | 0:b86d15c6ba29 | 415 | 0xc2c2c2c2U, 0xd3d3d3d3U, 0xacacacacU, 0x62626262U, |
Vanger | 0:b86d15c6ba29 | 416 | 0x91919191U, 0x95959595U, 0xe4e4e4e4U, 0x79797979U, |
Vanger | 0:b86d15c6ba29 | 417 | 0xe7e7e7e7U, 0xc8c8c8c8U, 0x37373737U, 0x6d6d6d6dU, |
Vanger | 0:b86d15c6ba29 | 418 | 0x8d8d8d8dU, 0xd5d5d5d5U, 0x4e4e4e4eU, 0xa9a9a9a9U, |
Vanger | 0:b86d15c6ba29 | 419 | 0x6c6c6c6cU, 0x56565656U, 0xf4f4f4f4U, 0xeaeaeaeaU, |
Vanger | 0:b86d15c6ba29 | 420 | 0x65656565U, 0x7a7a7a7aU, 0xaeaeaeaeU, 0x08080808U, |
Vanger | 0:b86d15c6ba29 | 421 | 0xbabababaU, 0x78787878U, 0x25252525U, 0x2e2e2e2eU, |
Vanger | 0:b86d15c6ba29 | 422 | 0x1c1c1c1cU, 0xa6a6a6a6U, 0xb4b4b4b4U, 0xc6c6c6c6U, |
Vanger | 0:b86d15c6ba29 | 423 | 0xe8e8e8e8U, 0xddddddddU, 0x74747474U, 0x1f1f1f1fU, |
Vanger | 0:b86d15c6ba29 | 424 | 0x4b4b4b4bU, 0xbdbdbdbdU, 0x8b8b8b8bU, 0x8a8a8a8aU, |
Vanger | 0:b86d15c6ba29 | 425 | 0x70707070U, 0x3e3e3e3eU, 0xb5b5b5b5U, 0x66666666U, |
Vanger | 0:b86d15c6ba29 | 426 | 0x48484848U, 0x03030303U, 0xf6f6f6f6U, 0x0e0e0e0eU, |
Vanger | 0:b86d15c6ba29 | 427 | 0x61616161U, 0x35353535U, 0x57575757U, 0xb9b9b9b9U, |
Vanger | 0:b86d15c6ba29 | 428 | 0x86868686U, 0xc1c1c1c1U, 0x1d1d1d1dU, 0x9e9e9e9eU, |
Vanger | 0:b86d15c6ba29 | 429 | 0xe1e1e1e1U, 0xf8f8f8f8U, 0x98989898U, 0x11111111U, |
Vanger | 0:b86d15c6ba29 | 430 | 0x69696969U, 0xd9d9d9d9U, 0x8e8e8e8eU, 0x94949494U, |
Vanger | 0:b86d15c6ba29 | 431 | 0x9b9b9b9bU, 0x1e1e1e1eU, 0x87878787U, 0xe9e9e9e9U, |
Vanger | 0:b86d15c6ba29 | 432 | 0xcecececeU, 0x55555555U, 0x28282828U, 0xdfdfdfdfU, |
Vanger | 0:b86d15c6ba29 | 433 | 0x8c8c8c8cU, 0xa1a1a1a1U, 0x89898989U, 0x0d0d0d0dU, |
Vanger | 0:b86d15c6ba29 | 434 | 0xbfbfbfbfU, 0xe6e6e6e6U, 0x42424242U, 0x68686868U, |
Vanger | 0:b86d15c6ba29 | 435 | 0x41414141U, 0x99999999U, 0x2d2d2d2dU, 0x0f0f0f0fU, |
Vanger | 0:b86d15c6ba29 | 436 | 0xb0b0b0b0U, 0x54545454U, 0xbbbbbbbbU, 0x16161616U, |
Vanger | 0:b86d15c6ba29 | 437 | } |
Vanger | 0:b86d15c6ba29 | 438 | }; |
Vanger | 0:b86d15c6ba29 | 439 | |
Vanger | 0:b86d15c6ba29 | 440 | static const word32 Td[5][256] = { |
Vanger | 0:b86d15c6ba29 | 441 | { |
Vanger | 0:b86d15c6ba29 | 442 | 0x51f4a750U, 0x7e416553U, 0x1a17a4c3U, 0x3a275e96U, |
Vanger | 0:b86d15c6ba29 | 443 | 0x3bab6bcbU, 0x1f9d45f1U, 0xacfa58abU, 0x4be30393U, |
Vanger | 0:b86d15c6ba29 | 444 | 0x2030fa55U, 0xad766df6U, 0x88cc7691U, 0xf5024c25U, |
Vanger | 0:b86d15c6ba29 | 445 | 0x4fe5d7fcU, 0xc52acbd7U, 0x26354480U, 0xb562a38fU, |
Vanger | 0:b86d15c6ba29 | 446 | 0xdeb15a49U, 0x25ba1b67U, 0x45ea0e98U, 0x5dfec0e1U, |
Vanger | 0:b86d15c6ba29 | 447 | 0xc32f7502U, 0x814cf012U, 0x8d4697a3U, 0x6bd3f9c6U, |
Vanger | 0:b86d15c6ba29 | 448 | 0x038f5fe7U, 0x15929c95U, 0xbf6d7aebU, 0x955259daU, |
Vanger | 0:b86d15c6ba29 | 449 | 0xd4be832dU, 0x587421d3U, 0x49e06929U, 0x8ec9c844U, |
Vanger | 0:b86d15c6ba29 | 450 | 0x75c2896aU, 0xf48e7978U, 0x99583e6bU, 0x27b971ddU, |
Vanger | 0:b86d15c6ba29 | 451 | 0xbee14fb6U, 0xf088ad17U, 0xc920ac66U, 0x7dce3ab4U, |
Vanger | 0:b86d15c6ba29 | 452 | 0x63df4a18U, 0xe51a3182U, 0x97513360U, 0x62537f45U, |
Vanger | 0:b86d15c6ba29 | 453 | 0xb16477e0U, 0xbb6bae84U, 0xfe81a01cU, 0xf9082b94U, |
Vanger | 0:b86d15c6ba29 | 454 | 0x70486858U, 0x8f45fd19U, 0x94de6c87U, 0x527bf8b7U, |
Vanger | 0:b86d15c6ba29 | 455 | 0xab73d323U, 0x724b02e2U, 0xe31f8f57U, 0x6655ab2aU, |
Vanger | 0:b86d15c6ba29 | 456 | 0xb2eb2807U, 0x2fb5c203U, 0x86c57b9aU, 0xd33708a5U, |
Vanger | 0:b86d15c6ba29 | 457 | 0x302887f2U, 0x23bfa5b2U, 0x02036abaU, 0xed16825cU, |
Vanger | 0:b86d15c6ba29 | 458 | 0x8acf1c2bU, 0xa779b492U, 0xf307f2f0U, 0x4e69e2a1U, |
Vanger | 0:b86d15c6ba29 | 459 | 0x65daf4cdU, 0x0605bed5U, 0xd134621fU, 0xc4a6fe8aU, |
Vanger | 0:b86d15c6ba29 | 460 | 0x342e539dU, 0xa2f355a0U, 0x058ae132U, 0xa4f6eb75U, |
Vanger | 0:b86d15c6ba29 | 461 | 0x0b83ec39U, 0x4060efaaU, 0x5e719f06U, 0xbd6e1051U, |
Vanger | 0:b86d15c6ba29 | 462 | 0x3e218af9U, 0x96dd063dU, 0xdd3e05aeU, 0x4de6bd46U, |
Vanger | 0:b86d15c6ba29 | 463 | 0x91548db5U, 0x71c45d05U, 0x0406d46fU, 0x605015ffU, |
Vanger | 0:b86d15c6ba29 | 464 | 0x1998fb24U, 0xd6bde997U, 0x894043ccU, 0x67d99e77U, |
Vanger | 0:b86d15c6ba29 | 465 | 0xb0e842bdU, 0x07898b88U, 0xe7195b38U, 0x79c8eedbU, |
Vanger | 0:b86d15c6ba29 | 466 | 0xa17c0a47U, 0x7c420fe9U, 0xf8841ec9U, 0x00000000U, |
Vanger | 0:b86d15c6ba29 | 467 | 0x09808683U, 0x322bed48U, 0x1e1170acU, 0x6c5a724eU, |
Vanger | 0:b86d15c6ba29 | 468 | 0xfd0efffbU, 0x0f853856U, 0x3daed51eU, 0x362d3927U, |
Vanger | 0:b86d15c6ba29 | 469 | 0x0a0fd964U, 0x685ca621U, 0x9b5b54d1U, 0x24362e3aU, |
Vanger | 0:b86d15c6ba29 | 470 | 0x0c0a67b1U, 0x9357e70fU, 0xb4ee96d2U, 0x1b9b919eU, |
Vanger | 0:b86d15c6ba29 | 471 | 0x80c0c54fU, 0x61dc20a2U, 0x5a774b69U, 0x1c121a16U, |
Vanger | 0:b86d15c6ba29 | 472 | 0xe293ba0aU, 0xc0a02ae5U, 0x3c22e043U, 0x121b171dU, |
Vanger | 0:b86d15c6ba29 | 473 | 0x0e090d0bU, 0xf28bc7adU, 0x2db6a8b9U, 0x141ea9c8U, |
Vanger | 0:b86d15c6ba29 | 474 | 0x57f11985U, 0xaf75074cU, 0xee99ddbbU, 0xa37f60fdU, |
Vanger | 0:b86d15c6ba29 | 475 | 0xf701269fU, 0x5c72f5bcU, 0x44663bc5U, 0x5bfb7e34U, |
Vanger | 0:b86d15c6ba29 | 476 | 0x8b432976U, 0xcb23c6dcU, 0xb6edfc68U, 0xb8e4f163U, |
Vanger | 0:b86d15c6ba29 | 477 | 0xd731dccaU, 0x42638510U, 0x13972240U, 0x84c61120U, |
Vanger | 0:b86d15c6ba29 | 478 | 0x854a247dU, 0xd2bb3df8U, 0xaef93211U, 0xc729a16dU, |
Vanger | 0:b86d15c6ba29 | 479 | 0x1d9e2f4bU, 0xdcb230f3U, 0x0d8652ecU, 0x77c1e3d0U, |
Vanger | 0:b86d15c6ba29 | 480 | 0x2bb3166cU, 0xa970b999U, 0x119448faU, 0x47e96422U, |
Vanger | 0:b86d15c6ba29 | 481 | 0xa8fc8cc4U, 0xa0f03f1aU, 0x567d2cd8U, 0x223390efU, |
Vanger | 0:b86d15c6ba29 | 482 | 0x87494ec7U, 0xd938d1c1U, 0x8ccaa2feU, 0x98d40b36U, |
Vanger | 0:b86d15c6ba29 | 483 | 0xa6f581cfU, 0xa57ade28U, 0xdab78e26U, 0x3fadbfa4U, |
Vanger | 0:b86d15c6ba29 | 484 | 0x2c3a9de4U, 0x5078920dU, 0x6a5fcc9bU, 0x547e4662U, |
Vanger | 0:b86d15c6ba29 | 485 | 0xf68d13c2U, 0x90d8b8e8U, 0x2e39f75eU, 0x82c3aff5U, |
Vanger | 0:b86d15c6ba29 | 486 | 0x9f5d80beU, 0x69d0937cU, 0x6fd52da9U, 0xcf2512b3U, |
Vanger | 0:b86d15c6ba29 | 487 | 0xc8ac993bU, 0x10187da7U, 0xe89c636eU, 0xdb3bbb7bU, |
Vanger | 0:b86d15c6ba29 | 488 | 0xcd267809U, 0x6e5918f4U, 0xec9ab701U, 0x834f9aa8U, |
Vanger | 0:b86d15c6ba29 | 489 | 0xe6956e65U, 0xaaffe67eU, 0x21bccf08U, 0xef15e8e6U, |
Vanger | 0:b86d15c6ba29 | 490 | 0xbae79bd9U, 0x4a6f36ceU, 0xea9f09d4U, 0x29b07cd6U, |
Vanger | 0:b86d15c6ba29 | 491 | 0x31a4b2afU, 0x2a3f2331U, 0xc6a59430U, 0x35a266c0U, |
Vanger | 0:b86d15c6ba29 | 492 | 0x744ebc37U, 0xfc82caa6U, 0xe090d0b0U, 0x33a7d815U, |
Vanger | 0:b86d15c6ba29 | 493 | 0xf104984aU, 0x41ecdaf7U, 0x7fcd500eU, 0x1791f62fU, |
Vanger | 0:b86d15c6ba29 | 494 | 0x764dd68dU, 0x43efb04dU, 0xccaa4d54U, 0xe49604dfU, |
Vanger | 0:b86d15c6ba29 | 495 | 0x9ed1b5e3U, 0x4c6a881bU, 0xc12c1fb8U, 0x4665517fU, |
Vanger | 0:b86d15c6ba29 | 496 | 0x9d5eea04U, 0x018c355dU, 0xfa877473U, 0xfb0b412eU, |
Vanger | 0:b86d15c6ba29 | 497 | 0xb3671d5aU, 0x92dbd252U, 0xe9105633U, 0x6dd64713U, |
Vanger | 0:b86d15c6ba29 | 498 | 0x9ad7618cU, 0x37a10c7aU, 0x59f8148eU, 0xeb133c89U, |
Vanger | 0:b86d15c6ba29 | 499 | 0xcea927eeU, 0xb761c935U, 0xe11ce5edU, 0x7a47b13cU, |
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Vanger | 0:b86d15c6ba29 | 651 | 0xdf4a1863U, 0x1a3182e5U, 0x51336097U, 0x537f4562U, |
Vanger | 0:b86d15c6ba29 | 652 | 0x6477e0b1U, 0x6bae84bbU, 0x81a01cfeU, 0x082b94f9U, |
Vanger | 0:b86d15c6ba29 | 653 | 0x48685870U, 0x45fd198fU, 0xde6c8794U, 0x7bf8b752U, |
Vanger | 0:b86d15c6ba29 | 654 | 0x73d323abU, 0x4b02e272U, 0x1f8f57e3U, 0x55ab2a66U, |
Vanger | 0:b86d15c6ba29 | 655 | 0xeb2807b2U, 0xb5c2032fU, 0xc57b9a86U, 0x3708a5d3U, |
Vanger | 0:b86d15c6ba29 | 656 | 0x2887f230U, 0xbfa5b223U, 0x036aba02U, 0x16825cedU, |
Vanger | 0:b86d15c6ba29 | 657 | 0xcf1c2b8aU, 0x79b492a7U, 0x07f2f0f3U, 0x69e2a14eU, |
Vanger | 0:b86d15c6ba29 | 658 | 0xdaf4cd65U, 0x05bed506U, 0x34621fd1U, 0xa6fe8ac4U, |
Vanger | 0:b86d15c6ba29 | 659 | 0x2e539d34U, 0xf355a0a2U, 0x8ae13205U, 0xf6eb75a4U, |
Vanger | 0:b86d15c6ba29 | 660 | 0x83ec390bU, 0x60efaa40U, 0x719f065eU, 0x6e1051bdU, |
Vanger | 0:b86d15c6ba29 | 661 | 0x218af93eU, 0xdd063d96U, 0x3e05aeddU, 0xe6bd464dU, |
Vanger | 0:b86d15c6ba29 | 662 | 0x548db591U, 0xc45d0571U, 0x06d46f04U, 0x5015ff60U, |
Vanger | 0:b86d15c6ba29 | 663 | 0x98fb2419U, 0xbde997d6U, 0x4043cc89U, 0xd99e7767U, |
Vanger | 0:b86d15c6ba29 | 664 | 0xe842bdb0U, 0x898b8807U, 0x195b38e7U, 0xc8eedb79U, |
Vanger | 0:b86d15c6ba29 | 665 | 0x7c0a47a1U, 0x420fe97cU, 0x841ec9f8U, 0x00000000U, |
Vanger | 0:b86d15c6ba29 | 666 | 0x80868309U, 0x2bed4832U, 0x1170ac1eU, 0x5a724e6cU, |
Vanger | 0:b86d15c6ba29 | 667 | 0x0efffbfdU, 0x8538560fU, 0xaed51e3dU, 0x2d392736U, |
Vanger | 0:b86d15c6ba29 | 668 | 0x0fd9640aU, 0x5ca62168U, 0x5b54d19bU, 0x362e3a24U, |
Vanger | 0:b86d15c6ba29 | 669 | 0x0a67b10cU, 0x57e70f93U, 0xee96d2b4U, 0x9b919e1bU, |
Vanger | 0:b86d15c6ba29 | 670 | 0xc0c54f80U, 0xdc20a261U, 0x774b695aU, 0x121a161cU, |
Vanger | 0:b86d15c6ba29 | 671 | 0x93ba0ae2U, 0xa02ae5c0U, 0x22e0433cU, 0x1b171d12U, |
Vanger | 0:b86d15c6ba29 | 672 | 0x090d0b0eU, 0x8bc7adf2U, 0xb6a8b92dU, 0x1ea9c814U, |
Vanger | 0:b86d15c6ba29 | 673 | 0xf1198557U, 0x75074cafU, 0x99ddbbeeU, 0x7f60fda3U, |
Vanger | 0:b86d15c6ba29 | 674 | 0x01269ff7U, 0x72f5bc5cU, 0x663bc544U, 0xfb7e345bU, |
Vanger | 0:b86d15c6ba29 | 675 | 0x4329768bU, 0x23c6dccbU, 0xedfc68b6U, 0xe4f163b8U, |
Vanger | 0:b86d15c6ba29 | 676 | 0x31dccad7U, 0x63851042U, 0x97224013U, 0xc6112084U, |
Vanger | 0:b86d15c6ba29 | 677 | 0x4a247d85U, 0xbb3df8d2U, 0xf93211aeU, 0x29a16dc7U, |
Vanger | 0:b86d15c6ba29 | 678 | 0x9e2f4b1dU, 0xb230f3dcU, 0x8652ec0dU, 0xc1e3d077U, |
Vanger | 0:b86d15c6ba29 | 679 | 0xb3166c2bU, 0x70b999a9U, 0x9448fa11U, 0xe9642247U, |
Vanger | 0:b86d15c6ba29 | 680 | 0xfc8cc4a8U, 0xf03f1aa0U, 0x7d2cd856U, 0x3390ef22U, |
Vanger | 0:b86d15c6ba29 | 681 | 0x494ec787U, 0x38d1c1d9U, 0xcaa2fe8cU, 0xd40b3698U, |
Vanger | 0:b86d15c6ba29 | 682 | 0xf581cfa6U, 0x7ade28a5U, 0xb78e26daU, 0xadbfa43fU, |
Vanger | 0:b86d15c6ba29 | 683 | 0x3a9de42cU, 0x78920d50U, 0x5fcc9b6aU, 0x7e466254U, |
Vanger | 0:b86d15c6ba29 | 684 | 0x8d13c2f6U, 0xd8b8e890U, 0x39f75e2eU, 0xc3aff582U, |
Vanger | 0:b86d15c6ba29 | 685 | 0x5d80be9fU, 0xd0937c69U, 0xd52da96fU, 0x2512b3cfU, |
Vanger | 0:b86d15c6ba29 | 686 | 0xac993bc8U, 0x187da710U, 0x9c636ee8U, 0x3bbb7bdbU, |
Vanger | 0:b86d15c6ba29 | 687 | 0x267809cdU, 0x5918f46eU, 0x9ab701ecU, 0x4f9aa883U, |
Vanger | 0:b86d15c6ba29 | 688 | 0x956e65e6U, 0xffe67eaaU, 0xbccf0821U, 0x15e8e6efU, |
Vanger | 0:b86d15c6ba29 | 689 | 0xe79bd9baU, 0x6f36ce4aU, 0x9f09d4eaU, 0xb07cd629U, |
Vanger | 0:b86d15c6ba29 | 690 | 0xa4b2af31U, 0x3f23312aU, 0xa59430c6U, 0xa266c035U, |
Vanger | 0:b86d15c6ba29 | 691 | 0x4ebc3774U, 0x82caa6fcU, 0x90d0b0e0U, 0xa7d81533U, |
Vanger | 0:b86d15c6ba29 | 692 | 0x04984af1U, 0xecdaf741U, 0xcd500e7fU, 0x91f62f17U, |
Vanger | 0:b86d15c6ba29 | 693 | 0x4dd68d76U, 0xefb04d43U, 0xaa4d54ccU, 0x9604dfe4U, |
Vanger | 0:b86d15c6ba29 | 694 | 0xd1b5e39eU, 0x6a881b4cU, 0x2c1fb8c1U, 0x65517f46U, |
Vanger | 0:b86d15c6ba29 | 695 | 0x5eea049dU, 0x8c355d01U, 0x877473faU, 0x0b412efbU, |
Vanger | 0:b86d15c6ba29 | 696 | 0x671d5ab3U, 0xdbd25292U, 0x105633e9U, 0xd647136dU, |
Vanger | 0:b86d15c6ba29 | 697 | 0xd7618c9aU, 0xa10c7a37U, 0xf8148e59U, 0x133c89ebU, |
Vanger | 0:b86d15c6ba29 | 698 | 0xa927eeceU, 0x61c935b7U, 0x1ce5ede1U, 0x47b13c7aU, |
Vanger | 0:b86d15c6ba29 | 699 | 0xd2df599cU, 0xf2733f55U, 0x14ce7918U, 0xc737bf73U, |
Vanger | 0:b86d15c6ba29 | 700 | 0xf7cdea53U, 0xfdaa5b5fU, 0x3d6f14dfU, 0x44db8678U, |
Vanger | 0:b86d15c6ba29 | 701 | 0xaff381caU, 0x68c43eb9U, 0x24342c38U, 0xa3405fc2U, |
Vanger | 0:b86d15c6ba29 | 702 | 0x1dc37216U, 0xe2250cbcU, 0x3c498b28U, 0x0d9541ffU, |
Vanger | 0:b86d15c6ba29 | 703 | 0xa8017139U, 0x0cb3de08U, 0xb4e49cd8U, 0x56c19064U, |
Vanger | 0:b86d15c6ba29 | 704 | 0xcb84617bU, 0x32b670d5U, 0x6c5c7448U, 0xb85742d0U, |
Vanger | 0:b86d15c6ba29 | 705 | }, |
Vanger | 0:b86d15c6ba29 | 706 | { |
Vanger | 0:b86d15c6ba29 | 707 | 0x52525252U, 0x09090909U, 0x6a6a6a6aU, 0xd5d5d5d5U, |
Vanger | 0:b86d15c6ba29 | 708 | 0x30303030U, 0x36363636U, 0xa5a5a5a5U, 0x38383838U, |
Vanger | 0:b86d15c6ba29 | 709 | 0xbfbfbfbfU, 0x40404040U, 0xa3a3a3a3U, 0x9e9e9e9eU, |
Vanger | 0:b86d15c6ba29 | 710 | 0x81818181U, 0xf3f3f3f3U, 0xd7d7d7d7U, 0xfbfbfbfbU, |
Vanger | 0:b86d15c6ba29 | 711 | 0x7c7c7c7cU, 0xe3e3e3e3U, 0x39393939U, 0x82828282U, |
Vanger | 0:b86d15c6ba29 | 712 | 0x9b9b9b9bU, 0x2f2f2f2fU, 0xffffffffU, 0x87878787U, |
Vanger | 0:b86d15c6ba29 | 713 | 0x34343434U, 0x8e8e8e8eU, 0x43434343U, 0x44444444U, |
Vanger | 0:b86d15c6ba29 | 714 | 0xc4c4c4c4U, 0xdedededeU, 0xe9e9e9e9U, 0xcbcbcbcbU, |
Vanger | 0:b86d15c6ba29 | 715 | 0x54545454U, 0x7b7b7b7bU, 0x94949494U, 0x32323232U, |
Vanger | 0:b86d15c6ba29 | 716 | 0xa6a6a6a6U, 0xc2c2c2c2U, 0x23232323U, 0x3d3d3d3dU, |
Vanger | 0:b86d15c6ba29 | 717 | 0xeeeeeeeeU, 0x4c4c4c4cU, 0x95959595U, 0x0b0b0b0bU, |
Vanger | 0:b86d15c6ba29 | 718 | 0x42424242U, 0xfafafafaU, 0xc3c3c3c3U, 0x4e4e4e4eU, |
Vanger | 0:b86d15c6ba29 | 719 | 0x08080808U, 0x2e2e2e2eU, 0xa1a1a1a1U, 0x66666666U, |
Vanger | 0:b86d15c6ba29 | 720 | 0x28282828U, 0xd9d9d9d9U, 0x24242424U, 0xb2b2b2b2U, |
Vanger | 0:b86d15c6ba29 | 721 | 0x76767676U, 0x5b5b5b5bU, 0xa2a2a2a2U, 0x49494949U, |
Vanger | 0:b86d15c6ba29 | 722 | 0x6d6d6d6dU, 0x8b8b8b8bU, 0xd1d1d1d1U, 0x25252525U, |
Vanger | 0:b86d15c6ba29 | 723 | 0x72727272U, 0xf8f8f8f8U, 0xf6f6f6f6U, 0x64646464U, |
Vanger | 0:b86d15c6ba29 | 724 | 0x86868686U, 0x68686868U, 0x98989898U, 0x16161616U, |
Vanger | 0:b86d15c6ba29 | 725 | 0xd4d4d4d4U, 0xa4a4a4a4U, 0x5c5c5c5cU, 0xccccccccU, |
Vanger | 0:b86d15c6ba29 | 726 | 0x5d5d5d5dU, 0x65656565U, 0xb6b6b6b6U, 0x92929292U, |
Vanger | 0:b86d15c6ba29 | 727 | 0x6c6c6c6cU, 0x70707070U, 0x48484848U, 0x50505050U, |
Vanger | 0:b86d15c6ba29 | 728 | 0xfdfdfdfdU, 0xededededU, 0xb9b9b9b9U, 0xdadadadaU, |
Vanger | 0:b86d15c6ba29 | 729 | 0x5e5e5e5eU, 0x15151515U, 0x46464646U, 0x57575757U, |
Vanger | 0:b86d15c6ba29 | 730 | 0xa7a7a7a7U, 0x8d8d8d8dU, 0x9d9d9d9dU, 0x84848484U, |
Vanger | 0:b86d15c6ba29 | 731 | 0x90909090U, 0xd8d8d8d8U, 0xababababU, 0x00000000U, |
Vanger | 0:b86d15c6ba29 | 732 | 0x8c8c8c8cU, 0xbcbcbcbcU, 0xd3d3d3d3U, 0x0a0a0a0aU, |
Vanger | 0:b86d15c6ba29 | 733 | 0xf7f7f7f7U, 0xe4e4e4e4U, 0x58585858U, 0x05050505U, |
Vanger | 0:b86d15c6ba29 | 734 | 0xb8b8b8b8U, 0xb3b3b3b3U, 0x45454545U, 0x06060606U, |
Vanger | 0:b86d15c6ba29 | 735 | 0xd0d0d0d0U, 0x2c2c2c2cU, 0x1e1e1e1eU, 0x8f8f8f8fU, |
Vanger | 0:b86d15c6ba29 | 736 | 0xcacacacaU, 0x3f3f3f3fU, 0x0f0f0f0fU, 0x02020202U, |
Vanger | 0:b86d15c6ba29 | 737 | 0xc1c1c1c1U, 0xafafafafU, 0xbdbdbdbdU, 0x03030303U, |
Vanger | 0:b86d15c6ba29 | 738 | 0x01010101U, 0x13131313U, 0x8a8a8a8aU, 0x6b6b6b6bU, |
Vanger | 0:b86d15c6ba29 | 739 | 0x3a3a3a3aU, 0x91919191U, 0x11111111U, 0x41414141U, |
Vanger | 0:b86d15c6ba29 | 740 | 0x4f4f4f4fU, 0x67676767U, 0xdcdcdcdcU, 0xeaeaeaeaU, |
Vanger | 0:b86d15c6ba29 | 741 | 0x97979797U, 0xf2f2f2f2U, 0xcfcfcfcfU, 0xcecececeU, |
Vanger | 0:b86d15c6ba29 | 742 | 0xf0f0f0f0U, 0xb4b4b4b4U, 0xe6e6e6e6U, 0x73737373U, |
Vanger | 0:b86d15c6ba29 | 743 | 0x96969696U, 0xacacacacU, 0x74747474U, 0x22222222U, |
Vanger | 0:b86d15c6ba29 | 744 | 0xe7e7e7e7U, 0xadadadadU, 0x35353535U, 0x85858585U, |
Vanger | 0:b86d15c6ba29 | 745 | 0xe2e2e2e2U, 0xf9f9f9f9U, 0x37373737U, 0xe8e8e8e8U, |
Vanger | 0:b86d15c6ba29 | 746 | 0x1c1c1c1cU, 0x75757575U, 0xdfdfdfdfU, 0x6e6e6e6eU, |
Vanger | 0:b86d15c6ba29 | 747 | 0x47474747U, 0xf1f1f1f1U, 0x1a1a1a1aU, 0x71717171U, |
Vanger | 0:b86d15c6ba29 | 748 | 0x1d1d1d1dU, 0x29292929U, 0xc5c5c5c5U, 0x89898989U, |
Vanger | 0:b86d15c6ba29 | 749 | 0x6f6f6f6fU, 0xb7b7b7b7U, 0x62626262U, 0x0e0e0e0eU, |
Vanger | 0:b86d15c6ba29 | 750 | 0xaaaaaaaaU, 0x18181818U, 0xbebebebeU, 0x1b1b1b1bU, |
Vanger | 0:b86d15c6ba29 | 751 | 0xfcfcfcfcU, 0x56565656U, 0x3e3e3e3eU, 0x4b4b4b4bU, |
Vanger | 0:b86d15c6ba29 | 752 | 0xc6c6c6c6U, 0xd2d2d2d2U, 0x79797979U, 0x20202020U, |
Vanger | 0:b86d15c6ba29 | 753 | 0x9a9a9a9aU, 0xdbdbdbdbU, 0xc0c0c0c0U, 0xfefefefeU, |
Vanger | 0:b86d15c6ba29 | 754 | 0x78787878U, 0xcdcdcdcdU, 0x5a5a5a5aU, 0xf4f4f4f4U, |
Vanger | 0:b86d15c6ba29 | 755 | 0x1f1f1f1fU, 0xddddddddU, 0xa8a8a8a8U, 0x33333333U, |
Vanger | 0:b86d15c6ba29 | 756 | 0x88888888U, 0x07070707U, 0xc7c7c7c7U, 0x31313131U, |
Vanger | 0:b86d15c6ba29 | 757 | 0xb1b1b1b1U, 0x12121212U, 0x10101010U, 0x59595959U, |
Vanger | 0:b86d15c6ba29 | 758 | 0x27272727U, 0x80808080U, 0xececececU, 0x5f5f5f5fU, |
Vanger | 0:b86d15c6ba29 | 759 | 0x60606060U, 0x51515151U, 0x7f7f7f7fU, 0xa9a9a9a9U, |
Vanger | 0:b86d15c6ba29 | 760 | 0x19191919U, 0xb5b5b5b5U, 0x4a4a4a4aU, 0x0d0d0d0dU, |
Vanger | 0:b86d15c6ba29 | 761 | 0x2d2d2d2dU, 0xe5e5e5e5U, 0x7a7a7a7aU, 0x9f9f9f9fU, |
Vanger | 0:b86d15c6ba29 | 762 | 0x93939393U, 0xc9c9c9c9U, 0x9c9c9c9cU, 0xefefefefU, |
Vanger | 0:b86d15c6ba29 | 763 | 0xa0a0a0a0U, 0xe0e0e0e0U, 0x3b3b3b3bU, 0x4d4d4d4dU, |
Vanger | 0:b86d15c6ba29 | 764 | 0xaeaeaeaeU, 0x2a2a2a2aU, 0xf5f5f5f5U, 0xb0b0b0b0U, |
Vanger | 0:b86d15c6ba29 | 765 | 0xc8c8c8c8U, 0xebebebebU, 0xbbbbbbbbU, 0x3c3c3c3cU, |
Vanger | 0:b86d15c6ba29 | 766 | 0x83838383U, 0x53535353U, 0x99999999U, 0x61616161U, |
Vanger | 0:b86d15c6ba29 | 767 | 0x17171717U, 0x2b2b2b2bU, 0x04040404U, 0x7e7e7e7eU, |
Vanger | 0:b86d15c6ba29 | 768 | 0xbabababaU, 0x77777777U, 0xd6d6d6d6U, 0x26262626U, |
Vanger | 0:b86d15c6ba29 | 769 | 0xe1e1e1e1U, 0x69696969U, 0x14141414U, 0x63636363U, |
Vanger | 0:b86d15c6ba29 | 770 | 0x55555555U, 0x21212121U, 0x0c0c0c0cU, 0x7d7d7d7dU, |
Vanger | 0:b86d15c6ba29 | 771 | } |
Vanger | 0:b86d15c6ba29 | 772 | }; |
Vanger | 0:b86d15c6ba29 | 773 | |
Vanger | 0:b86d15c6ba29 | 774 | #define GETBYTE(x, y) (word32)((byte)((x) >> (8 * (y)))) |
Vanger | 0:b86d15c6ba29 | 775 | |
Vanger | 0:b86d15c6ba29 | 776 | #ifdef CYASSL_AESNI |
Vanger | 0:b86d15c6ba29 | 777 | |
Vanger | 0:b86d15c6ba29 | 778 | /* Each platform needs to query info type 1 from cpuid to see if aesni is |
Vanger | 0:b86d15c6ba29 | 779 | * supported. Also, let's setup a macro for proper linkage w/o ABI conflicts |
Vanger | 0:b86d15c6ba29 | 780 | */ |
Vanger | 0:b86d15c6ba29 | 781 | |
Vanger | 0:b86d15c6ba29 | 782 | #ifndef _MSC_VER |
Vanger | 0:b86d15c6ba29 | 783 | |
Vanger | 0:b86d15c6ba29 | 784 | #define cpuid(reg, func)\ |
Vanger | 0:b86d15c6ba29 | 785 | __asm__ __volatile__ ("cpuid":\ |
Vanger | 0:b86d15c6ba29 | 786 | "=a" (reg[0]), "=b" (reg[1]), "=c" (reg[2]), "=d" (reg[3]) :\ |
Vanger | 0:b86d15c6ba29 | 787 | "a" (func)); |
Vanger | 0:b86d15c6ba29 | 788 | |
Vanger | 0:b86d15c6ba29 | 789 | #define XASM_LINK(f) asm(f) |
Vanger | 0:b86d15c6ba29 | 790 | #else |
Vanger | 0:b86d15c6ba29 | 791 | |
Vanger | 0:b86d15c6ba29 | 792 | #include <intrin.h> |
Vanger | 0:b86d15c6ba29 | 793 | #define cpuid(a,b) __cpuid((int*)a,b) |
Vanger | 0:b86d15c6ba29 | 794 | |
Vanger | 0:b86d15c6ba29 | 795 | #define XASM_LINK(f) |
Vanger | 0:b86d15c6ba29 | 796 | |
Vanger | 0:b86d15c6ba29 | 797 | #endif /* _MSC_VER */ |
Vanger | 0:b86d15c6ba29 | 798 | |
Vanger | 0:b86d15c6ba29 | 799 | |
Vanger | 0:b86d15c6ba29 | 800 | static int Check_CPU_support_AES(void) |
Vanger | 0:b86d15c6ba29 | 801 | { |
Vanger | 0:b86d15c6ba29 | 802 | unsigned int reg[4]; /* put a,b,c,d into 0,1,2,3 */ |
Vanger | 0:b86d15c6ba29 | 803 | cpuid(reg, 1); /* query info 1 */ |
Vanger | 0:b86d15c6ba29 | 804 | |
Vanger | 0:b86d15c6ba29 | 805 | if (reg[2] & 0x2000000) |
Vanger | 0:b86d15c6ba29 | 806 | return 1; |
Vanger | 0:b86d15c6ba29 | 807 | |
Vanger | 0:b86d15c6ba29 | 808 | return 0; |
Vanger | 0:b86d15c6ba29 | 809 | } |
Vanger | 0:b86d15c6ba29 | 810 | |
Vanger | 0:b86d15c6ba29 | 811 | static int checkAESNI = 0; |
Vanger | 0:b86d15c6ba29 | 812 | static int haveAESNI = 0; |
Vanger | 0:b86d15c6ba29 | 813 | |
Vanger | 0:b86d15c6ba29 | 814 | |
Vanger | 0:b86d15c6ba29 | 815 | /* tell C compiler these are asm functions in case any mix up of ABI underscore |
Vanger | 0:b86d15c6ba29 | 816 | prefix between clang/gcc/llvm etc */ |
Vanger | 0:b86d15c6ba29 | 817 | void AES_CBC_encrypt(const unsigned char* in, unsigned char* out, |
Vanger | 0:b86d15c6ba29 | 818 | unsigned char* ivec, unsigned long length, |
Vanger | 0:b86d15c6ba29 | 819 | const unsigned char* KS, int nr) |
Vanger | 0:b86d15c6ba29 | 820 | XASM_LINK("AES_CBC_encrypt"); |
Vanger | 0:b86d15c6ba29 | 821 | |
Vanger | 0:b86d15c6ba29 | 822 | |
Vanger | 0:b86d15c6ba29 | 823 | void AES_CBC_decrypt(const unsigned char* in, unsigned char* out, |
Vanger | 0:b86d15c6ba29 | 824 | unsigned char* ivec, unsigned long length, |
Vanger | 0:b86d15c6ba29 | 825 | const unsigned char* KS, int nr) |
Vanger | 0:b86d15c6ba29 | 826 | XASM_LINK("AES_CBC_decrypt"); |
Vanger | 0:b86d15c6ba29 | 827 | |
Vanger | 0:b86d15c6ba29 | 828 | void AES_ECB_encrypt(const unsigned char* in, unsigned char* out, |
Vanger | 0:b86d15c6ba29 | 829 | unsigned long length, const unsigned char* KS, int nr) |
Vanger | 0:b86d15c6ba29 | 830 | XASM_LINK("AES_ECB_encrypt"); |
Vanger | 0:b86d15c6ba29 | 831 | |
Vanger | 0:b86d15c6ba29 | 832 | |
Vanger | 0:b86d15c6ba29 | 833 | void AES_ECB_decrypt(const unsigned char* in, unsigned char* out, |
Vanger | 0:b86d15c6ba29 | 834 | unsigned long length, const unsigned char* KS, int nr) |
Vanger | 0:b86d15c6ba29 | 835 | XASM_LINK("AES_ECB_decrypt"); |
Vanger | 0:b86d15c6ba29 | 836 | |
Vanger | 0:b86d15c6ba29 | 837 | void AES_128_Key_Expansion(const unsigned char* userkey, |
Vanger | 0:b86d15c6ba29 | 838 | unsigned char* key_schedule) |
Vanger | 0:b86d15c6ba29 | 839 | XASM_LINK("AES_128_Key_Expansion"); |
Vanger | 0:b86d15c6ba29 | 840 | |
Vanger | 0:b86d15c6ba29 | 841 | void AES_192_Key_Expansion(const unsigned char* userkey, |
Vanger | 0:b86d15c6ba29 | 842 | unsigned char* key_schedule) |
Vanger | 0:b86d15c6ba29 | 843 | XASM_LINK("AES_192_Key_Expansion"); |
Vanger | 0:b86d15c6ba29 | 844 | |
Vanger | 0:b86d15c6ba29 | 845 | void AES_256_Key_Expansion(const unsigned char* userkey, |
Vanger | 0:b86d15c6ba29 | 846 | unsigned char* key_schedule) |
Vanger | 0:b86d15c6ba29 | 847 | XASM_LINK("AES_256_Key_Expansion"); |
Vanger | 0:b86d15c6ba29 | 848 | |
Vanger | 0:b86d15c6ba29 | 849 | |
Vanger | 0:b86d15c6ba29 | 850 | static int AES_set_encrypt_key(const unsigned char *userKey, const int bits, |
Vanger | 0:b86d15c6ba29 | 851 | Aes* aes) |
Vanger | 0:b86d15c6ba29 | 852 | { |
Vanger | 0:b86d15c6ba29 | 853 | if (!userKey || !aes) |
Vanger | 0:b86d15c6ba29 | 854 | return BAD_FUNC_ARG; |
Vanger | 0:b86d15c6ba29 | 855 | |
Vanger | 0:b86d15c6ba29 | 856 | if (bits == 128) { |
Vanger | 0:b86d15c6ba29 | 857 | AES_128_Key_Expansion (userKey,(byte*)aes->key); aes->rounds = 10; |
Vanger | 0:b86d15c6ba29 | 858 | return 0; |
Vanger | 0:b86d15c6ba29 | 859 | } |
Vanger | 0:b86d15c6ba29 | 860 | else if (bits == 192) { |
Vanger | 0:b86d15c6ba29 | 861 | AES_192_Key_Expansion (userKey,(byte*)aes->key); aes->rounds = 12; |
Vanger | 0:b86d15c6ba29 | 862 | return 0; |
Vanger | 0:b86d15c6ba29 | 863 | } |
Vanger | 0:b86d15c6ba29 | 864 | else if (bits == 256) { |
Vanger | 0:b86d15c6ba29 | 865 | AES_256_Key_Expansion (userKey,(byte*)aes->key); aes->rounds = 14; |
Vanger | 0:b86d15c6ba29 | 866 | return 0; |
Vanger | 0:b86d15c6ba29 | 867 | } |
Vanger | 0:b86d15c6ba29 | 868 | return BAD_FUNC_ARG; |
Vanger | 0:b86d15c6ba29 | 869 | } |
Vanger | 0:b86d15c6ba29 | 870 | |
Vanger | 0:b86d15c6ba29 | 871 | |
Vanger | 0:b86d15c6ba29 | 872 | static int AES_set_decrypt_key(const unsigned char* userKey, const int bits, |
Vanger | 0:b86d15c6ba29 | 873 | Aes* aes) |
Vanger | 0:b86d15c6ba29 | 874 | { |
Vanger | 0:b86d15c6ba29 | 875 | int nr; |
Vanger | 0:b86d15c6ba29 | 876 | Aes temp_key; |
Vanger | 0:b86d15c6ba29 | 877 | __m128i *Key_Schedule = (__m128i*)aes->key; |
Vanger | 0:b86d15c6ba29 | 878 | __m128i *Temp_Key_Schedule = (__m128i*)temp_key.key; |
Vanger | 0:b86d15c6ba29 | 879 | |
Vanger | 0:b86d15c6ba29 | 880 | if (!userKey || !aes) |
Vanger | 0:b86d15c6ba29 | 881 | return BAD_FUNC_ARG; |
Vanger | 0:b86d15c6ba29 | 882 | |
Vanger | 0:b86d15c6ba29 | 883 | if (AES_set_encrypt_key(userKey,bits,&temp_key) == BAD_FUNC_ARG) |
Vanger | 0:b86d15c6ba29 | 884 | return BAD_FUNC_ARG; |
Vanger | 0:b86d15c6ba29 | 885 | |
Vanger | 0:b86d15c6ba29 | 886 | nr = temp_key.rounds; |
Vanger | 0:b86d15c6ba29 | 887 | aes->rounds = nr; |
Vanger | 0:b86d15c6ba29 | 888 | |
Vanger | 0:b86d15c6ba29 | 889 | Key_Schedule[nr] = Temp_Key_Schedule[0]; |
Vanger | 0:b86d15c6ba29 | 890 | Key_Schedule[nr-1] = _mm_aesimc_si128(Temp_Key_Schedule[1]); |
Vanger | 0:b86d15c6ba29 | 891 | Key_Schedule[nr-2] = _mm_aesimc_si128(Temp_Key_Schedule[2]); |
Vanger | 0:b86d15c6ba29 | 892 | Key_Schedule[nr-3] = _mm_aesimc_si128(Temp_Key_Schedule[3]); |
Vanger | 0:b86d15c6ba29 | 893 | Key_Schedule[nr-4] = _mm_aesimc_si128(Temp_Key_Schedule[4]); |
Vanger | 0:b86d15c6ba29 | 894 | Key_Schedule[nr-5] = _mm_aesimc_si128(Temp_Key_Schedule[5]); |
Vanger | 0:b86d15c6ba29 | 895 | Key_Schedule[nr-6] = _mm_aesimc_si128(Temp_Key_Schedule[6]); |
Vanger | 0:b86d15c6ba29 | 896 | Key_Schedule[nr-7] = _mm_aesimc_si128(Temp_Key_Schedule[7]); |
Vanger | 0:b86d15c6ba29 | 897 | Key_Schedule[nr-8] = _mm_aesimc_si128(Temp_Key_Schedule[8]); |
Vanger | 0:b86d15c6ba29 | 898 | Key_Schedule[nr-9] = _mm_aesimc_si128(Temp_Key_Schedule[9]); |
Vanger | 0:b86d15c6ba29 | 899 | |
Vanger | 0:b86d15c6ba29 | 900 | if(nr>10) { |
Vanger | 0:b86d15c6ba29 | 901 | Key_Schedule[nr-10] = _mm_aesimc_si128(Temp_Key_Schedule[10]); |
Vanger | 0:b86d15c6ba29 | 902 | Key_Schedule[nr-11] = _mm_aesimc_si128(Temp_Key_Schedule[11]); |
Vanger | 0:b86d15c6ba29 | 903 | } |
Vanger | 0:b86d15c6ba29 | 904 | |
Vanger | 0:b86d15c6ba29 | 905 | if(nr>12) { |
Vanger | 0:b86d15c6ba29 | 906 | Key_Schedule[nr-12] = _mm_aesimc_si128(Temp_Key_Schedule[12]); |
Vanger | 0:b86d15c6ba29 | 907 | Key_Schedule[nr-13] = _mm_aesimc_si128(Temp_Key_Schedule[13]); |
Vanger | 0:b86d15c6ba29 | 908 | } |
Vanger | 0:b86d15c6ba29 | 909 | |
Vanger | 0:b86d15c6ba29 | 910 | Key_Schedule[0] = Temp_Key_Schedule[nr]; |
Vanger | 0:b86d15c6ba29 | 911 | |
Vanger | 0:b86d15c6ba29 | 912 | return 0; |
Vanger | 0:b86d15c6ba29 | 913 | } |
Vanger | 0:b86d15c6ba29 | 914 | |
Vanger | 0:b86d15c6ba29 | 915 | |
Vanger | 0:b86d15c6ba29 | 916 | |
Vanger | 0:b86d15c6ba29 | 917 | #endif /* CYASSL_AESNI */ |
Vanger | 0:b86d15c6ba29 | 918 | |
Vanger | 0:b86d15c6ba29 | 919 | |
Vanger | 0:b86d15c6ba29 | 920 | static void AesEncrypt(Aes* aes, const byte* inBlock, byte* outBlock) |
Vanger | 0:b86d15c6ba29 | 921 | { |
Vanger | 0:b86d15c6ba29 | 922 | word32 s0, s1, s2, s3; |
Vanger | 0:b86d15c6ba29 | 923 | word32 t0, t1, t2, t3; |
Vanger | 0:b86d15c6ba29 | 924 | word32 r = aes->rounds >> 1; |
Vanger | 0:b86d15c6ba29 | 925 | |
Vanger | 0:b86d15c6ba29 | 926 | const word32* rk = aes->key; |
Vanger | 0:b86d15c6ba29 | 927 | if (r > 7 || r == 0) { |
Vanger | 0:b86d15c6ba29 | 928 | CYASSL_MSG("AesEncrypt encountered improper key, set it up"); |
Vanger | 0:b86d15c6ba29 | 929 | return; /* stop instead of segfaulting, set up your keys! */ |
Vanger | 0:b86d15c6ba29 | 930 | } |
Vanger | 0:b86d15c6ba29 | 931 | #ifdef CYASSL_AESNI |
Vanger | 0:b86d15c6ba29 | 932 | if (haveAESNI && aes->use_aesni) { |
Vanger | 0:b86d15c6ba29 | 933 | #ifdef DEBUG_AESNI |
Vanger | 0:b86d15c6ba29 | 934 | printf("about to aes encrypt\n"); |
Vanger | 0:b86d15c6ba29 | 935 | printf("in = %p\n", inBlock); |
Vanger | 0:b86d15c6ba29 | 936 | printf("out = %p\n", outBlock); |
Vanger | 0:b86d15c6ba29 | 937 | printf("aes->key = %p\n", aes->key); |
Vanger | 0:b86d15c6ba29 | 938 | printf("aes->rounds = %d\n", aes->rounds); |
Vanger | 0:b86d15c6ba29 | 939 | printf("sz = %d\n", AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 940 | #endif |
Vanger | 0:b86d15c6ba29 | 941 | |
Vanger | 0:b86d15c6ba29 | 942 | /* check alignment, decrypt doesn't need alignment */ |
Vanger | 0:b86d15c6ba29 | 943 | if ((cyassl_word)inBlock % 16) { |
Vanger | 0:b86d15c6ba29 | 944 | #ifndef NO_CYASSL_ALLOC_ALIGN |
Vanger | 0:b86d15c6ba29 | 945 | byte* tmp = (byte*)XMALLOC(AES_BLOCK_SIZE, NULL, |
Vanger | 0:b86d15c6ba29 | 946 | DYNAMIC_TYPE_TMP_BUFFER); |
Vanger | 0:b86d15c6ba29 | 947 | if (tmp == NULL) return; |
Vanger | 0:b86d15c6ba29 | 948 | |
Vanger | 0:b86d15c6ba29 | 949 | XMEMCPY(tmp, inBlock, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 950 | AES_ECB_encrypt(tmp, tmp, AES_BLOCK_SIZE, (byte*)aes->key, |
Vanger | 0:b86d15c6ba29 | 951 | aes->rounds); |
Vanger | 0:b86d15c6ba29 | 952 | XMEMCPY(outBlock, tmp, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 953 | XFREE(tmp, NULL, DYNAMIC_TYPE_TMP_BUFFER); |
Vanger | 0:b86d15c6ba29 | 954 | return; |
Vanger | 0:b86d15c6ba29 | 955 | #else |
Vanger | 0:b86d15c6ba29 | 956 | CYASSL_MSG("AES-ECB encrypt with bad alignment"); |
Vanger | 0:b86d15c6ba29 | 957 | return; |
Vanger | 0:b86d15c6ba29 | 958 | #endif |
Vanger | 0:b86d15c6ba29 | 959 | } |
Vanger | 0:b86d15c6ba29 | 960 | |
Vanger | 0:b86d15c6ba29 | 961 | AES_ECB_encrypt(inBlock, outBlock, AES_BLOCK_SIZE, (byte*)aes->key, |
Vanger | 0:b86d15c6ba29 | 962 | aes->rounds); |
Vanger | 0:b86d15c6ba29 | 963 | |
Vanger | 0:b86d15c6ba29 | 964 | return; |
Vanger | 0:b86d15c6ba29 | 965 | } |
Vanger | 0:b86d15c6ba29 | 966 | else { |
Vanger | 0:b86d15c6ba29 | 967 | #ifdef DEBUG_AESNI |
Vanger | 0:b86d15c6ba29 | 968 | printf("Skipping AES-NI\n"); |
Vanger | 0:b86d15c6ba29 | 969 | #endif |
Vanger | 0:b86d15c6ba29 | 970 | } |
Vanger | 0:b86d15c6ba29 | 971 | #endif |
Vanger | 0:b86d15c6ba29 | 972 | |
Vanger | 0:b86d15c6ba29 | 973 | /* |
Vanger | 0:b86d15c6ba29 | 974 | * map byte array block to cipher state |
Vanger | 0:b86d15c6ba29 | 975 | * and add initial round key: |
Vanger | 0:b86d15c6ba29 | 976 | */ |
Vanger | 0:b86d15c6ba29 | 977 | XMEMCPY(&s0, inBlock, sizeof(s0)); |
Vanger | 0:b86d15c6ba29 | 978 | XMEMCPY(&s1, inBlock + sizeof(s0), sizeof(s1)); |
Vanger | 0:b86d15c6ba29 | 979 | XMEMCPY(&s2, inBlock + 2 * sizeof(s0), sizeof(s2)); |
Vanger | 0:b86d15c6ba29 | 980 | XMEMCPY(&s3, inBlock + 3 * sizeof(s0), sizeof(s3)); |
Vanger | 0:b86d15c6ba29 | 981 | |
Vanger | 0:b86d15c6ba29 | 982 | #ifdef LITTLE_ENDIAN_ORDER |
Vanger | 0:b86d15c6ba29 | 983 | s0 = ByteReverseWord32(s0); |
Vanger | 0:b86d15c6ba29 | 984 | s1 = ByteReverseWord32(s1); |
Vanger | 0:b86d15c6ba29 | 985 | s2 = ByteReverseWord32(s2); |
Vanger | 0:b86d15c6ba29 | 986 | s3 = ByteReverseWord32(s3); |
Vanger | 0:b86d15c6ba29 | 987 | #endif |
Vanger | 0:b86d15c6ba29 | 988 | |
Vanger | 0:b86d15c6ba29 | 989 | s0 ^= rk[0]; |
Vanger | 0:b86d15c6ba29 | 990 | s1 ^= rk[1]; |
Vanger | 0:b86d15c6ba29 | 991 | s2 ^= rk[2]; |
Vanger | 0:b86d15c6ba29 | 992 | s3 ^= rk[3]; |
Vanger | 0:b86d15c6ba29 | 993 | |
Vanger | 0:b86d15c6ba29 | 994 | /* |
Vanger | 0:b86d15c6ba29 | 995 | * Nr - 1 full rounds: |
Vanger | 0:b86d15c6ba29 | 996 | */ |
Vanger | 0:b86d15c6ba29 | 997 | |
Vanger | 0:b86d15c6ba29 | 998 | for (;;) { |
Vanger | 0:b86d15c6ba29 | 999 | t0 = |
Vanger | 0:b86d15c6ba29 | 1000 | Te[0][GETBYTE(s0, 3)] ^ |
Vanger | 0:b86d15c6ba29 | 1001 | Te[1][GETBYTE(s1, 2)] ^ |
Vanger | 0:b86d15c6ba29 | 1002 | Te[2][GETBYTE(s2, 1)] ^ |
Vanger | 0:b86d15c6ba29 | 1003 | Te[3][GETBYTE(s3, 0)] ^ |
Vanger | 0:b86d15c6ba29 | 1004 | rk[4]; |
Vanger | 0:b86d15c6ba29 | 1005 | t1 = |
Vanger | 0:b86d15c6ba29 | 1006 | Te[0][GETBYTE(s1, 3)] ^ |
Vanger | 0:b86d15c6ba29 | 1007 | Te[1][GETBYTE(s2, 2)] ^ |
Vanger | 0:b86d15c6ba29 | 1008 | Te[2][GETBYTE(s3, 1)] ^ |
Vanger | 0:b86d15c6ba29 | 1009 | Te[3][GETBYTE(s0, 0)] ^ |
Vanger | 0:b86d15c6ba29 | 1010 | rk[5]; |
Vanger | 0:b86d15c6ba29 | 1011 | t2 = |
Vanger | 0:b86d15c6ba29 | 1012 | Te[0][GETBYTE(s2, 3)] ^ |
Vanger | 0:b86d15c6ba29 | 1013 | Te[1][GETBYTE(s3, 2)] ^ |
Vanger | 0:b86d15c6ba29 | 1014 | Te[2][GETBYTE(s0, 1)] ^ |
Vanger | 0:b86d15c6ba29 | 1015 | Te[3][GETBYTE(s1, 0)] ^ |
Vanger | 0:b86d15c6ba29 | 1016 | rk[6]; |
Vanger | 0:b86d15c6ba29 | 1017 | t3 = |
Vanger | 0:b86d15c6ba29 | 1018 | Te[0][GETBYTE(s3, 3)] ^ |
Vanger | 0:b86d15c6ba29 | 1019 | Te[1][GETBYTE(s0, 2)] ^ |
Vanger | 0:b86d15c6ba29 | 1020 | Te[2][GETBYTE(s1, 1)] ^ |
Vanger | 0:b86d15c6ba29 | 1021 | Te[3][GETBYTE(s2, 0)] ^ |
Vanger | 0:b86d15c6ba29 | 1022 | rk[7]; |
Vanger | 0:b86d15c6ba29 | 1023 | |
Vanger | 0:b86d15c6ba29 | 1024 | rk += 8; |
Vanger | 0:b86d15c6ba29 | 1025 | if (--r == 0) { |
Vanger | 0:b86d15c6ba29 | 1026 | break; |
Vanger | 0:b86d15c6ba29 | 1027 | } |
Vanger | 0:b86d15c6ba29 | 1028 | |
Vanger | 0:b86d15c6ba29 | 1029 | s0 = |
Vanger | 0:b86d15c6ba29 | 1030 | Te[0][GETBYTE(t0, 3)] ^ |
Vanger | 0:b86d15c6ba29 | 1031 | Te[1][GETBYTE(t1, 2)] ^ |
Vanger | 0:b86d15c6ba29 | 1032 | Te[2][GETBYTE(t2, 1)] ^ |
Vanger | 0:b86d15c6ba29 | 1033 | Te[3][GETBYTE(t3, 0)] ^ |
Vanger | 0:b86d15c6ba29 | 1034 | rk[0]; |
Vanger | 0:b86d15c6ba29 | 1035 | s1 = |
Vanger | 0:b86d15c6ba29 | 1036 | Te[0][GETBYTE(t1, 3)] ^ |
Vanger | 0:b86d15c6ba29 | 1037 | Te[1][GETBYTE(t2, 2)] ^ |
Vanger | 0:b86d15c6ba29 | 1038 | Te[2][GETBYTE(t3, 1)] ^ |
Vanger | 0:b86d15c6ba29 | 1039 | Te[3][GETBYTE(t0, 0)] ^ |
Vanger | 0:b86d15c6ba29 | 1040 | rk[1]; |
Vanger | 0:b86d15c6ba29 | 1041 | s2 = |
Vanger | 0:b86d15c6ba29 | 1042 | Te[0][GETBYTE(t2, 3)] ^ |
Vanger | 0:b86d15c6ba29 | 1043 | Te[1][GETBYTE(t3, 2)] ^ |
Vanger | 0:b86d15c6ba29 | 1044 | Te[2][GETBYTE(t0, 1)] ^ |
Vanger | 0:b86d15c6ba29 | 1045 | Te[3][GETBYTE(t1, 0)] ^ |
Vanger | 0:b86d15c6ba29 | 1046 | rk[2]; |
Vanger | 0:b86d15c6ba29 | 1047 | s3 = |
Vanger | 0:b86d15c6ba29 | 1048 | Te[0][GETBYTE(t3, 3)] ^ |
Vanger | 0:b86d15c6ba29 | 1049 | Te[1][GETBYTE(t0, 2)] ^ |
Vanger | 0:b86d15c6ba29 | 1050 | Te[2][GETBYTE(t1, 1)] ^ |
Vanger | 0:b86d15c6ba29 | 1051 | Te[3][GETBYTE(t2, 0)] ^ |
Vanger | 0:b86d15c6ba29 | 1052 | rk[3]; |
Vanger | 0:b86d15c6ba29 | 1053 | } |
Vanger | 0:b86d15c6ba29 | 1054 | |
Vanger | 0:b86d15c6ba29 | 1055 | /* |
Vanger | 0:b86d15c6ba29 | 1056 | * apply last round and |
Vanger | 0:b86d15c6ba29 | 1057 | * map cipher state to byte array block: |
Vanger | 0:b86d15c6ba29 | 1058 | */ |
Vanger | 0:b86d15c6ba29 | 1059 | |
Vanger | 0:b86d15c6ba29 | 1060 | s0 = |
Vanger | 0:b86d15c6ba29 | 1061 | (Te[4][GETBYTE(t0, 3)] & 0xff000000) ^ |
Vanger | 0:b86d15c6ba29 | 1062 | (Te[4][GETBYTE(t1, 2)] & 0x00ff0000) ^ |
Vanger | 0:b86d15c6ba29 | 1063 | (Te[4][GETBYTE(t2, 1)] & 0x0000ff00) ^ |
Vanger | 0:b86d15c6ba29 | 1064 | (Te[4][GETBYTE(t3, 0)] & 0x000000ff) ^ |
Vanger | 0:b86d15c6ba29 | 1065 | rk[0]; |
Vanger | 0:b86d15c6ba29 | 1066 | s1 = |
Vanger | 0:b86d15c6ba29 | 1067 | (Te[4][GETBYTE(t1, 3)] & 0xff000000) ^ |
Vanger | 0:b86d15c6ba29 | 1068 | (Te[4][GETBYTE(t2, 2)] & 0x00ff0000) ^ |
Vanger | 0:b86d15c6ba29 | 1069 | (Te[4][GETBYTE(t3, 1)] & 0x0000ff00) ^ |
Vanger | 0:b86d15c6ba29 | 1070 | (Te[4][GETBYTE(t0, 0)] & 0x000000ff) ^ |
Vanger | 0:b86d15c6ba29 | 1071 | rk[1]; |
Vanger | 0:b86d15c6ba29 | 1072 | s2 = |
Vanger | 0:b86d15c6ba29 | 1073 | (Te[4][GETBYTE(t2, 3)] & 0xff000000) ^ |
Vanger | 0:b86d15c6ba29 | 1074 | (Te[4][GETBYTE(t3, 2)] & 0x00ff0000) ^ |
Vanger | 0:b86d15c6ba29 | 1075 | (Te[4][GETBYTE(t0, 1)] & 0x0000ff00) ^ |
Vanger | 0:b86d15c6ba29 | 1076 | (Te[4][GETBYTE(t1, 0)] & 0x000000ff) ^ |
Vanger | 0:b86d15c6ba29 | 1077 | rk[2]; |
Vanger | 0:b86d15c6ba29 | 1078 | s3 = |
Vanger | 0:b86d15c6ba29 | 1079 | (Te[4][GETBYTE(t3, 3)] & 0xff000000) ^ |
Vanger | 0:b86d15c6ba29 | 1080 | (Te[4][GETBYTE(t0, 2)] & 0x00ff0000) ^ |
Vanger | 0:b86d15c6ba29 | 1081 | (Te[4][GETBYTE(t1, 1)] & 0x0000ff00) ^ |
Vanger | 0:b86d15c6ba29 | 1082 | (Te[4][GETBYTE(t2, 0)] & 0x000000ff) ^ |
Vanger | 0:b86d15c6ba29 | 1083 | rk[3]; |
Vanger | 0:b86d15c6ba29 | 1084 | |
Vanger | 0:b86d15c6ba29 | 1085 | /* write out */ |
Vanger | 0:b86d15c6ba29 | 1086 | #ifdef LITTLE_ENDIAN_ORDER |
Vanger | 0:b86d15c6ba29 | 1087 | s0 = ByteReverseWord32(s0); |
Vanger | 0:b86d15c6ba29 | 1088 | s1 = ByteReverseWord32(s1); |
Vanger | 0:b86d15c6ba29 | 1089 | s2 = ByteReverseWord32(s2); |
Vanger | 0:b86d15c6ba29 | 1090 | s3 = ByteReverseWord32(s3); |
Vanger | 0:b86d15c6ba29 | 1091 | #endif |
Vanger | 0:b86d15c6ba29 | 1092 | |
Vanger | 0:b86d15c6ba29 | 1093 | XMEMCPY(outBlock, &s0, sizeof(s0)); |
Vanger | 0:b86d15c6ba29 | 1094 | XMEMCPY(outBlock + sizeof(s0), &s1, sizeof(s1)); |
Vanger | 0:b86d15c6ba29 | 1095 | XMEMCPY(outBlock + 2 * sizeof(s0), &s2, sizeof(s2)); |
Vanger | 0:b86d15c6ba29 | 1096 | XMEMCPY(outBlock + 3 * sizeof(s0), &s3, sizeof(s3)); |
Vanger | 0:b86d15c6ba29 | 1097 | } |
Vanger | 0:b86d15c6ba29 | 1098 | |
Vanger | 0:b86d15c6ba29 | 1099 | static void AesDecrypt(Aes* aes, const byte* inBlock, byte* outBlock) |
Vanger | 0:b86d15c6ba29 | 1100 | { |
Vanger | 0:b86d15c6ba29 | 1101 | word32 s0, s1, s2, s3; |
Vanger | 0:b86d15c6ba29 | 1102 | word32 t0, t1, t2, t3; |
Vanger | 0:b86d15c6ba29 | 1103 | word32 r = aes->rounds >> 1; |
Vanger | 0:b86d15c6ba29 | 1104 | |
Vanger | 0:b86d15c6ba29 | 1105 | const word32* rk = aes->key; |
Vanger | 0:b86d15c6ba29 | 1106 | if (r > 7 || r == 0) { |
Vanger | 0:b86d15c6ba29 | 1107 | CYASSL_MSG("AesDecrypt encountered improper key, set it up"); |
Vanger | 0:b86d15c6ba29 | 1108 | return; /* stop instead of segfaulting, set up your keys! */ |
Vanger | 0:b86d15c6ba29 | 1109 | } |
Vanger | 0:b86d15c6ba29 | 1110 | #ifdef CYASSL_AESNI |
Vanger | 0:b86d15c6ba29 | 1111 | if (haveAESNI && aes->use_aesni) { |
Vanger | 0:b86d15c6ba29 | 1112 | #ifdef DEBUG_AESNI |
Vanger | 0:b86d15c6ba29 | 1113 | printf("about to aes decrypt\n"); |
Vanger | 0:b86d15c6ba29 | 1114 | printf("in = %p\n", inBlock); |
Vanger | 0:b86d15c6ba29 | 1115 | printf("out = %p\n", outBlock); |
Vanger | 0:b86d15c6ba29 | 1116 | printf("aes->key = %p\n", aes->key); |
Vanger | 0:b86d15c6ba29 | 1117 | printf("aes->rounds = %d\n", aes->rounds); |
Vanger | 0:b86d15c6ba29 | 1118 | printf("sz = %d\n", AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 1119 | #endif |
Vanger | 0:b86d15c6ba29 | 1120 | |
Vanger | 0:b86d15c6ba29 | 1121 | /* if input and output same will overwrite input iv */ |
Vanger | 0:b86d15c6ba29 | 1122 | XMEMCPY(aes->tmp, inBlock, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 1123 | AES_ECB_decrypt(inBlock, outBlock, AES_BLOCK_SIZE, (byte*)aes->key, |
Vanger | 0:b86d15c6ba29 | 1124 | aes->rounds); |
Vanger | 0:b86d15c6ba29 | 1125 | return; |
Vanger | 0:b86d15c6ba29 | 1126 | } |
Vanger | 0:b86d15c6ba29 | 1127 | else { |
Vanger | 0:b86d15c6ba29 | 1128 | #ifdef DEBUG_AESNI |
Vanger | 0:b86d15c6ba29 | 1129 | printf("Skipping AES-NI\n"); |
Vanger | 0:b86d15c6ba29 | 1130 | #endif |
Vanger | 0:b86d15c6ba29 | 1131 | } |
Vanger | 0:b86d15c6ba29 | 1132 | #endif |
Vanger | 0:b86d15c6ba29 | 1133 | |
Vanger | 0:b86d15c6ba29 | 1134 | /* |
Vanger | 0:b86d15c6ba29 | 1135 | * map byte array block to cipher state |
Vanger | 0:b86d15c6ba29 | 1136 | * and add initial round key: |
Vanger | 0:b86d15c6ba29 | 1137 | */ |
Vanger | 0:b86d15c6ba29 | 1138 | XMEMCPY(&s0, inBlock, sizeof(s0)); |
Vanger | 0:b86d15c6ba29 | 1139 | XMEMCPY(&s1, inBlock + sizeof(s0), sizeof(s1)); |
Vanger | 0:b86d15c6ba29 | 1140 | XMEMCPY(&s2, inBlock + 2 * sizeof(s0), sizeof(s2)); |
Vanger | 0:b86d15c6ba29 | 1141 | XMEMCPY(&s3, inBlock + 3 * sizeof(s0), sizeof(s3)); |
Vanger | 0:b86d15c6ba29 | 1142 | |
Vanger | 0:b86d15c6ba29 | 1143 | #ifdef LITTLE_ENDIAN_ORDER |
Vanger | 0:b86d15c6ba29 | 1144 | s0 = ByteReverseWord32(s0); |
Vanger | 0:b86d15c6ba29 | 1145 | s1 = ByteReverseWord32(s1); |
Vanger | 0:b86d15c6ba29 | 1146 | s2 = ByteReverseWord32(s2); |
Vanger | 0:b86d15c6ba29 | 1147 | s3 = ByteReverseWord32(s3); |
Vanger | 0:b86d15c6ba29 | 1148 | #endif |
Vanger | 0:b86d15c6ba29 | 1149 | |
Vanger | 0:b86d15c6ba29 | 1150 | s0 ^= rk[0]; |
Vanger | 0:b86d15c6ba29 | 1151 | s1 ^= rk[1]; |
Vanger | 0:b86d15c6ba29 | 1152 | s2 ^= rk[2]; |
Vanger | 0:b86d15c6ba29 | 1153 | s3 ^= rk[3]; |
Vanger | 0:b86d15c6ba29 | 1154 | |
Vanger | 0:b86d15c6ba29 | 1155 | /* |
Vanger | 0:b86d15c6ba29 | 1156 | * Nr - 1 full rounds: |
Vanger | 0:b86d15c6ba29 | 1157 | */ |
Vanger | 0:b86d15c6ba29 | 1158 | |
Vanger | 0:b86d15c6ba29 | 1159 | for (;;) { |
Vanger | 0:b86d15c6ba29 | 1160 | t0 = |
Vanger | 0:b86d15c6ba29 | 1161 | Td[0][GETBYTE(s0, 3)] ^ |
Vanger | 0:b86d15c6ba29 | 1162 | Td[1][GETBYTE(s3, 2)] ^ |
Vanger | 0:b86d15c6ba29 | 1163 | Td[2][GETBYTE(s2, 1)] ^ |
Vanger | 0:b86d15c6ba29 | 1164 | Td[3][GETBYTE(s1, 0)] ^ |
Vanger | 0:b86d15c6ba29 | 1165 | rk[4]; |
Vanger | 0:b86d15c6ba29 | 1166 | t1 = |
Vanger | 0:b86d15c6ba29 | 1167 | Td[0][GETBYTE(s1, 3)] ^ |
Vanger | 0:b86d15c6ba29 | 1168 | Td[1][GETBYTE(s0, 2)] ^ |
Vanger | 0:b86d15c6ba29 | 1169 | Td[2][GETBYTE(s3, 1)] ^ |
Vanger | 0:b86d15c6ba29 | 1170 | Td[3][GETBYTE(s2, 0)] ^ |
Vanger | 0:b86d15c6ba29 | 1171 | rk[5]; |
Vanger | 0:b86d15c6ba29 | 1172 | t2 = |
Vanger | 0:b86d15c6ba29 | 1173 | Td[0][GETBYTE(s2, 3)] ^ |
Vanger | 0:b86d15c6ba29 | 1174 | Td[1][GETBYTE(s1, 2)] ^ |
Vanger | 0:b86d15c6ba29 | 1175 | Td[2][GETBYTE(s0, 1)] ^ |
Vanger | 0:b86d15c6ba29 | 1176 | Td[3][GETBYTE(s3, 0)] ^ |
Vanger | 0:b86d15c6ba29 | 1177 | rk[6]; |
Vanger | 0:b86d15c6ba29 | 1178 | t3 = |
Vanger | 0:b86d15c6ba29 | 1179 | Td[0][GETBYTE(s3, 3)] ^ |
Vanger | 0:b86d15c6ba29 | 1180 | Td[1][GETBYTE(s2, 2)] ^ |
Vanger | 0:b86d15c6ba29 | 1181 | Td[2][GETBYTE(s1, 1)] ^ |
Vanger | 0:b86d15c6ba29 | 1182 | Td[3][GETBYTE(s0, 0)] ^ |
Vanger | 0:b86d15c6ba29 | 1183 | rk[7]; |
Vanger | 0:b86d15c6ba29 | 1184 | |
Vanger | 0:b86d15c6ba29 | 1185 | rk += 8; |
Vanger | 0:b86d15c6ba29 | 1186 | if (--r == 0) { |
Vanger | 0:b86d15c6ba29 | 1187 | break; |
Vanger | 0:b86d15c6ba29 | 1188 | } |
Vanger | 0:b86d15c6ba29 | 1189 | |
Vanger | 0:b86d15c6ba29 | 1190 | s0 = |
Vanger | 0:b86d15c6ba29 | 1191 | Td[0][GETBYTE(t0, 3)] ^ |
Vanger | 0:b86d15c6ba29 | 1192 | Td[1][GETBYTE(t3, 2)] ^ |
Vanger | 0:b86d15c6ba29 | 1193 | Td[2][GETBYTE(t2, 1)] ^ |
Vanger | 0:b86d15c6ba29 | 1194 | Td[3][GETBYTE(t1, 0)] ^ |
Vanger | 0:b86d15c6ba29 | 1195 | rk[0]; |
Vanger | 0:b86d15c6ba29 | 1196 | s1 = |
Vanger | 0:b86d15c6ba29 | 1197 | Td[0][GETBYTE(t1, 3)] ^ |
Vanger | 0:b86d15c6ba29 | 1198 | Td[1][GETBYTE(t0, 2)] ^ |
Vanger | 0:b86d15c6ba29 | 1199 | Td[2][GETBYTE(t3, 1)] ^ |
Vanger | 0:b86d15c6ba29 | 1200 | Td[3][GETBYTE(t2, 0)] ^ |
Vanger | 0:b86d15c6ba29 | 1201 | rk[1]; |
Vanger | 0:b86d15c6ba29 | 1202 | s2 = |
Vanger | 0:b86d15c6ba29 | 1203 | Td[0][GETBYTE(t2, 3)] ^ |
Vanger | 0:b86d15c6ba29 | 1204 | Td[1][GETBYTE(t1, 2)] ^ |
Vanger | 0:b86d15c6ba29 | 1205 | Td[2][GETBYTE(t0, 1)] ^ |
Vanger | 0:b86d15c6ba29 | 1206 | Td[3][GETBYTE(t3, 0)] ^ |
Vanger | 0:b86d15c6ba29 | 1207 | rk[2]; |
Vanger | 0:b86d15c6ba29 | 1208 | s3 = |
Vanger | 0:b86d15c6ba29 | 1209 | Td[0][GETBYTE(t3, 3)] ^ |
Vanger | 0:b86d15c6ba29 | 1210 | Td[1][GETBYTE(t2, 2)] ^ |
Vanger | 0:b86d15c6ba29 | 1211 | Td[2][GETBYTE(t1, 1)] ^ |
Vanger | 0:b86d15c6ba29 | 1212 | Td[3][GETBYTE(t0, 0)] ^ |
Vanger | 0:b86d15c6ba29 | 1213 | rk[3]; |
Vanger | 0:b86d15c6ba29 | 1214 | } |
Vanger | 0:b86d15c6ba29 | 1215 | /* |
Vanger | 0:b86d15c6ba29 | 1216 | * apply last round and |
Vanger | 0:b86d15c6ba29 | 1217 | * map cipher state to byte array block: |
Vanger | 0:b86d15c6ba29 | 1218 | */ |
Vanger | 0:b86d15c6ba29 | 1219 | s0 = |
Vanger | 0:b86d15c6ba29 | 1220 | (Td[4][GETBYTE(t0, 3)] & 0xff000000) ^ |
Vanger | 0:b86d15c6ba29 | 1221 | (Td[4][GETBYTE(t3, 2)] & 0x00ff0000) ^ |
Vanger | 0:b86d15c6ba29 | 1222 | (Td[4][GETBYTE(t2, 1)] & 0x0000ff00) ^ |
Vanger | 0:b86d15c6ba29 | 1223 | (Td[4][GETBYTE(t1, 0)] & 0x000000ff) ^ |
Vanger | 0:b86d15c6ba29 | 1224 | rk[0]; |
Vanger | 0:b86d15c6ba29 | 1225 | s1 = |
Vanger | 0:b86d15c6ba29 | 1226 | (Td[4][GETBYTE(t1, 3)] & 0xff000000) ^ |
Vanger | 0:b86d15c6ba29 | 1227 | (Td[4][GETBYTE(t0, 2)] & 0x00ff0000) ^ |
Vanger | 0:b86d15c6ba29 | 1228 | (Td[4][GETBYTE(t3, 1)] & 0x0000ff00) ^ |
Vanger | 0:b86d15c6ba29 | 1229 | (Td[4][GETBYTE(t2, 0)] & 0x000000ff) ^ |
Vanger | 0:b86d15c6ba29 | 1230 | rk[1]; |
Vanger | 0:b86d15c6ba29 | 1231 | s2 = |
Vanger | 0:b86d15c6ba29 | 1232 | (Td[4][GETBYTE(t2, 3)] & 0xff000000) ^ |
Vanger | 0:b86d15c6ba29 | 1233 | (Td[4][GETBYTE(t1, 2)] & 0x00ff0000) ^ |
Vanger | 0:b86d15c6ba29 | 1234 | (Td[4][GETBYTE(t0, 1)] & 0x0000ff00) ^ |
Vanger | 0:b86d15c6ba29 | 1235 | (Td[4][GETBYTE(t3, 0)] & 0x000000ff) ^ |
Vanger | 0:b86d15c6ba29 | 1236 | rk[2]; |
Vanger | 0:b86d15c6ba29 | 1237 | s3 = |
Vanger | 0:b86d15c6ba29 | 1238 | (Td[4][GETBYTE(t3, 3)] & 0xff000000) ^ |
Vanger | 0:b86d15c6ba29 | 1239 | (Td[4][GETBYTE(t2, 2)] & 0x00ff0000) ^ |
Vanger | 0:b86d15c6ba29 | 1240 | (Td[4][GETBYTE(t1, 1)] & 0x0000ff00) ^ |
Vanger | 0:b86d15c6ba29 | 1241 | (Td[4][GETBYTE(t0, 0)] & 0x000000ff) ^ |
Vanger | 0:b86d15c6ba29 | 1242 | rk[3]; |
Vanger | 0:b86d15c6ba29 | 1243 | |
Vanger | 0:b86d15c6ba29 | 1244 | /* write out */ |
Vanger | 0:b86d15c6ba29 | 1245 | #ifdef LITTLE_ENDIAN_ORDER |
Vanger | 0:b86d15c6ba29 | 1246 | s0 = ByteReverseWord32(s0); |
Vanger | 0:b86d15c6ba29 | 1247 | s1 = ByteReverseWord32(s1); |
Vanger | 0:b86d15c6ba29 | 1248 | s2 = ByteReverseWord32(s2); |
Vanger | 0:b86d15c6ba29 | 1249 | s3 = ByteReverseWord32(s3); |
Vanger | 0:b86d15c6ba29 | 1250 | #endif |
Vanger | 0:b86d15c6ba29 | 1251 | |
Vanger | 0:b86d15c6ba29 | 1252 | XMEMCPY(outBlock, &s0, sizeof(s0)); |
Vanger | 0:b86d15c6ba29 | 1253 | XMEMCPY(outBlock + sizeof(s0), &s1, sizeof(s1)); |
Vanger | 0:b86d15c6ba29 | 1254 | XMEMCPY(outBlock + 2 * sizeof(s0), &s2, sizeof(s2)); |
Vanger | 0:b86d15c6ba29 | 1255 | XMEMCPY(outBlock + 3 * sizeof(s0), &s3, sizeof(s3)); |
Vanger | 0:b86d15c6ba29 | 1256 | } |
Vanger | 0:b86d15c6ba29 | 1257 | |
Vanger | 0:b86d15c6ba29 | 1258 | #endif /* NEED_AES_TABLES */ |
Vanger | 0:b86d15c6ba29 | 1259 | |
Vanger | 0:b86d15c6ba29 | 1260 | |
Vanger | 0:b86d15c6ba29 | 1261 | /* AesSetKey */ |
Vanger | 0:b86d15c6ba29 | 1262 | #ifdef STM32F2_CRYPTO |
Vanger | 0:b86d15c6ba29 | 1263 | int AesSetKey(Aes* aes, const byte* userKey, word32 keylen, const byte* iv, |
Vanger | 0:b86d15c6ba29 | 1264 | int dir) |
Vanger | 0:b86d15c6ba29 | 1265 | { |
Vanger | 0:b86d15c6ba29 | 1266 | word32 *rk = aes->key; |
Vanger | 0:b86d15c6ba29 | 1267 | |
Vanger | 0:b86d15c6ba29 | 1268 | if (!((keylen == 16) || (keylen == 24) || (keylen == 32))) |
Vanger | 0:b86d15c6ba29 | 1269 | return BAD_FUNC_ARG; |
Vanger | 0:b86d15c6ba29 | 1270 | |
Vanger | 0:b86d15c6ba29 | 1271 | aes->rounds = keylen/4 + 6; |
Vanger | 0:b86d15c6ba29 | 1272 | XMEMCPY(rk, userKey, keylen); |
Vanger | 0:b86d15c6ba29 | 1273 | ByteReverseWords(rk, rk, keylen); |
Vanger | 0:b86d15c6ba29 | 1274 | |
Vanger | 0:b86d15c6ba29 | 1275 | return AesSetIV(aes, iv); |
Vanger | 0:b86d15c6ba29 | 1276 | } |
Vanger | 0:b86d15c6ba29 | 1277 | |
Vanger | 0:b86d15c6ba29 | 1278 | int AesSetKeyDirect(Aes* aes, const byte* userKey, word32 keylen, |
Vanger | 0:b86d15c6ba29 | 1279 | const byte* iv, int dir) |
Vanger | 0:b86d15c6ba29 | 1280 | { |
Vanger | 0:b86d15c6ba29 | 1281 | return AesSetKey(aes, userKey, keylen, iv, dir); |
Vanger | 0:b86d15c6ba29 | 1282 | } |
Vanger | 0:b86d15c6ba29 | 1283 | |
Vanger | 0:b86d15c6ba29 | 1284 | #elif defined(HAVE_COLDFIRE_SEC) |
Vanger | 0:b86d15c6ba29 | 1285 | #if defined (HAVE_THREADX) |
Vanger | 0:b86d15c6ba29 | 1286 | #include "memory_pools.h" |
Vanger | 0:b86d15c6ba29 | 1287 | extern TX_BYTE_POOL mp_ncached; /* Non Cached memory pool */ |
Vanger | 0:b86d15c6ba29 | 1288 | #endif |
Vanger | 0:b86d15c6ba29 | 1289 | |
Vanger | 0:b86d15c6ba29 | 1290 | #define AES_BUFFER_SIZE (AES_BLOCK_SIZE * 64) |
Vanger | 0:b86d15c6ba29 | 1291 | static unsigned char *AESBuffIn = NULL; |
Vanger | 0:b86d15c6ba29 | 1292 | static unsigned char *AESBuffOut = NULL; |
Vanger | 0:b86d15c6ba29 | 1293 | static byte *secReg; |
Vanger | 0:b86d15c6ba29 | 1294 | static byte *secKey; |
Vanger | 0:b86d15c6ba29 | 1295 | static volatile SECdescriptorType *secDesc; |
Vanger | 0:b86d15c6ba29 | 1296 | |
Vanger | 0:b86d15c6ba29 | 1297 | static CyaSSL_Mutex Mutex_AesSEC; |
Vanger | 0:b86d15c6ba29 | 1298 | |
Vanger | 0:b86d15c6ba29 | 1299 | #define SEC_DESC_AES_CBC_ENCRYPT 0x60300010 |
Vanger | 0:b86d15c6ba29 | 1300 | #define SEC_DESC_AES_CBC_DECRYPT 0x60200010 |
Vanger | 0:b86d15c6ba29 | 1301 | |
Vanger | 0:b86d15c6ba29 | 1302 | extern volatile unsigned char __MBAR[]; |
Vanger | 0:b86d15c6ba29 | 1303 | |
Vanger | 0:b86d15c6ba29 | 1304 | int AesSetKey(Aes* aes, const byte* userKey, word32 keylen, const byte* iv, |
Vanger | 0:b86d15c6ba29 | 1305 | int dir) |
Vanger | 0:b86d15c6ba29 | 1306 | { |
Vanger | 0:b86d15c6ba29 | 1307 | if (AESBuffIn == NULL) { |
Vanger | 0:b86d15c6ba29 | 1308 | #if defined (HAVE_THREADX) |
Vanger | 0:b86d15c6ba29 | 1309 | int s1, s2, s3, s4, s5 ; |
Vanger | 0:b86d15c6ba29 | 1310 | s5 = tx_byte_allocate(&mp_ncached,(void *)&secDesc, |
Vanger | 0:b86d15c6ba29 | 1311 | sizeof(SECdescriptorType), TX_NO_WAIT); |
Vanger | 0:b86d15c6ba29 | 1312 | s1 = tx_byte_allocate(&mp_ncached, (void *)&AESBuffIn, |
Vanger | 0:b86d15c6ba29 | 1313 | AES_BUFFER_SIZE, TX_NO_WAIT); |
Vanger | 0:b86d15c6ba29 | 1314 | s2 = tx_byte_allocate(&mp_ncached, (void *)&AESBuffOut, |
Vanger | 0:b86d15c6ba29 | 1315 | AES_BUFFER_SIZE, TX_NO_WAIT); |
Vanger | 0:b86d15c6ba29 | 1316 | s3 = tx_byte_allocate(&mp_ncached, (void *)&secKey, |
Vanger | 0:b86d15c6ba29 | 1317 | AES_BLOCK_SIZE*2, TX_NO_WAIT); |
Vanger | 0:b86d15c6ba29 | 1318 | s4 = tx_byte_allocate(&mp_ncached, (void *)&secReg, |
Vanger | 0:b86d15c6ba29 | 1319 | AES_BLOCK_SIZE, TX_NO_WAIT); |
Vanger | 0:b86d15c6ba29 | 1320 | |
Vanger | 0:b86d15c6ba29 | 1321 | if(s1 || s2 || s3 || s4 || s5) |
Vanger | 0:b86d15c6ba29 | 1322 | return BAD_FUNC_ARG; |
Vanger | 0:b86d15c6ba29 | 1323 | #else |
Vanger | 0:b86d15c6ba29 | 1324 | #warning "Allocate non-Cache buffers" |
Vanger | 0:b86d15c6ba29 | 1325 | #endif |
Vanger | 0:b86d15c6ba29 | 1326 | |
Vanger | 0:b86d15c6ba29 | 1327 | InitMutex(&Mutex_AesSEC); |
Vanger | 0:b86d15c6ba29 | 1328 | } |
Vanger | 0:b86d15c6ba29 | 1329 | |
Vanger | 0:b86d15c6ba29 | 1330 | if (!((keylen == 16) || (keylen == 24) || (keylen == 32))) |
Vanger | 0:b86d15c6ba29 | 1331 | return BAD_FUNC_ARG; |
Vanger | 0:b86d15c6ba29 | 1332 | |
Vanger | 0:b86d15c6ba29 | 1333 | if (aes == NULL) |
Vanger | 0:b86d15c6ba29 | 1334 | return BAD_FUNC_ARG; |
Vanger | 0:b86d15c6ba29 | 1335 | |
Vanger | 0:b86d15c6ba29 | 1336 | aes->rounds = keylen/4 + 6; |
Vanger | 0:b86d15c6ba29 | 1337 | XMEMCPY(aes->key, userKey, keylen); |
Vanger | 0:b86d15c6ba29 | 1338 | |
Vanger | 0:b86d15c6ba29 | 1339 | if (iv) |
Vanger | 0:b86d15c6ba29 | 1340 | XMEMCPY(aes->reg, iv, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 1341 | |
Vanger | 0:b86d15c6ba29 | 1342 | return 0; |
Vanger | 0:b86d15c6ba29 | 1343 | } |
Vanger | 0:b86d15c6ba29 | 1344 | #elif defined(FREESCALE_MMCAU) |
Vanger | 0:b86d15c6ba29 | 1345 | int AesSetKey(Aes* aes, const byte* userKey, word32 keylen, const byte* iv, |
Vanger | 0:b86d15c6ba29 | 1346 | int dir) |
Vanger | 0:b86d15c6ba29 | 1347 | { |
Vanger | 0:b86d15c6ba29 | 1348 | byte *rk = (byte*)aes->key; |
Vanger | 0:b86d15c6ba29 | 1349 | |
Vanger | 0:b86d15c6ba29 | 1350 | if (!((keylen == 16) || (keylen == 24) || (keylen == 32))) |
Vanger | 0:b86d15c6ba29 | 1351 | return BAD_FUNC_ARG; |
Vanger | 0:b86d15c6ba29 | 1352 | |
Vanger | 0:b86d15c6ba29 | 1353 | if (rk == NULL) |
Vanger | 0:b86d15c6ba29 | 1354 | return BAD_FUNC_ARG; |
Vanger | 0:b86d15c6ba29 | 1355 | |
Vanger | 0:b86d15c6ba29 | 1356 | aes->rounds = keylen/4 + 6; |
Vanger | 0:b86d15c6ba29 | 1357 | cau_aes_set_key(userKey, keylen*8, rk); |
Vanger | 0:b86d15c6ba29 | 1358 | |
Vanger | 0:b86d15c6ba29 | 1359 | return AesSetIV(aes, iv); |
Vanger | 0:b86d15c6ba29 | 1360 | } |
Vanger | 0:b86d15c6ba29 | 1361 | |
Vanger | 0:b86d15c6ba29 | 1362 | int AesSetKeyDirect(Aes* aes, const byte* userKey, word32 keylen, |
Vanger | 0:b86d15c6ba29 | 1363 | const byte* iv, int dir) |
Vanger | 0:b86d15c6ba29 | 1364 | { |
Vanger | 0:b86d15c6ba29 | 1365 | return AesSetKey(aes, userKey, keylen, iv, dir); |
Vanger | 0:b86d15c6ba29 | 1366 | } |
Vanger | 0:b86d15c6ba29 | 1367 | #else |
Vanger | 0:b86d15c6ba29 | 1368 | static int AesSetKeyLocal(Aes* aes, const byte* userKey, word32 keylen, |
Vanger | 0:b86d15c6ba29 | 1369 | const byte* iv, int dir) |
Vanger | 0:b86d15c6ba29 | 1370 | { |
Vanger | 0:b86d15c6ba29 | 1371 | word32 temp, *rk = aes->key; |
Vanger | 0:b86d15c6ba29 | 1372 | unsigned int i = 0; |
Vanger | 0:b86d15c6ba29 | 1373 | |
Vanger | 0:b86d15c6ba29 | 1374 | #ifdef CYASSL_AESNI |
Vanger | 0:b86d15c6ba29 | 1375 | aes->use_aesni = 0; |
Vanger | 0:b86d15c6ba29 | 1376 | #endif /* CYASSL_AESNI */ |
Vanger | 0:b86d15c6ba29 | 1377 | #ifdef CYASSL_AES_COUNTER |
Vanger | 0:b86d15c6ba29 | 1378 | aes->left = 0; |
Vanger | 0:b86d15c6ba29 | 1379 | #endif /* CYASSL_AES_COUNTER */ |
Vanger | 0:b86d15c6ba29 | 1380 | |
Vanger | 0:b86d15c6ba29 | 1381 | aes->rounds = keylen/4 + 6; |
Vanger | 0:b86d15c6ba29 | 1382 | |
Vanger | 0:b86d15c6ba29 | 1383 | XMEMCPY(rk, userKey, keylen); |
Vanger | 0:b86d15c6ba29 | 1384 | #ifdef LITTLE_ENDIAN_ORDER |
Vanger | 0:b86d15c6ba29 | 1385 | ByteReverseWords(rk, rk, keylen); |
Vanger | 0:b86d15c6ba29 | 1386 | #endif |
Vanger | 0:b86d15c6ba29 | 1387 | |
Vanger | 0:b86d15c6ba29 | 1388 | #ifdef CYASSL_PIC32MZ_CRYPT |
Vanger | 0:b86d15c6ba29 | 1389 | { |
Vanger | 0:b86d15c6ba29 | 1390 | word32 *akey1 = aes->key_ce; |
Vanger | 0:b86d15c6ba29 | 1391 | word32 *areg = aes->iv_ce ; |
Vanger | 0:b86d15c6ba29 | 1392 | aes->keylen = keylen ; |
Vanger | 0:b86d15c6ba29 | 1393 | XMEMCPY(akey1, userKey, keylen); |
Vanger | 0:b86d15c6ba29 | 1394 | if (iv) |
Vanger | 0:b86d15c6ba29 | 1395 | XMEMCPY(areg, iv, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 1396 | else |
Vanger | 0:b86d15c6ba29 | 1397 | XMEMSET(areg, 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 1398 | } |
Vanger | 0:b86d15c6ba29 | 1399 | #endif |
Vanger | 0:b86d15c6ba29 | 1400 | |
Vanger | 0:b86d15c6ba29 | 1401 | switch(keylen) |
Vanger | 0:b86d15c6ba29 | 1402 | { |
Vanger | 0:b86d15c6ba29 | 1403 | case 16: |
Vanger | 0:b86d15c6ba29 | 1404 | while (1) |
Vanger | 0:b86d15c6ba29 | 1405 | { |
Vanger | 0:b86d15c6ba29 | 1406 | temp = rk[3]; |
Vanger | 0:b86d15c6ba29 | 1407 | rk[4] = rk[0] ^ |
Vanger | 0:b86d15c6ba29 | 1408 | (Te[4][GETBYTE(temp, 2)] & 0xff000000) ^ |
Vanger | 0:b86d15c6ba29 | 1409 | (Te[4][GETBYTE(temp, 1)] & 0x00ff0000) ^ |
Vanger | 0:b86d15c6ba29 | 1410 | (Te[4][GETBYTE(temp, 0)] & 0x0000ff00) ^ |
Vanger | 0:b86d15c6ba29 | 1411 | (Te[4][GETBYTE(temp, 3)] & 0x000000ff) ^ |
Vanger | 0:b86d15c6ba29 | 1412 | rcon[i]; |
Vanger | 0:b86d15c6ba29 | 1413 | rk[5] = rk[1] ^ rk[4]; |
Vanger | 0:b86d15c6ba29 | 1414 | rk[6] = rk[2] ^ rk[5]; |
Vanger | 0:b86d15c6ba29 | 1415 | rk[7] = rk[3] ^ rk[6]; |
Vanger | 0:b86d15c6ba29 | 1416 | if (++i == 10) |
Vanger | 0:b86d15c6ba29 | 1417 | break; |
Vanger | 0:b86d15c6ba29 | 1418 | rk += 4; |
Vanger | 0:b86d15c6ba29 | 1419 | } |
Vanger | 0:b86d15c6ba29 | 1420 | break; |
Vanger | 0:b86d15c6ba29 | 1421 | |
Vanger | 0:b86d15c6ba29 | 1422 | case 24: |
Vanger | 0:b86d15c6ba29 | 1423 | /* for (;;) here triggers a bug in VC60 SP4 w/ Pro Pack */ |
Vanger | 0:b86d15c6ba29 | 1424 | while (1) |
Vanger | 0:b86d15c6ba29 | 1425 | { |
Vanger | 0:b86d15c6ba29 | 1426 | temp = rk[ 5]; |
Vanger | 0:b86d15c6ba29 | 1427 | rk[ 6] = rk[ 0] ^ |
Vanger | 0:b86d15c6ba29 | 1428 | (Te[4][GETBYTE(temp, 2)] & 0xff000000) ^ |
Vanger | 0:b86d15c6ba29 | 1429 | (Te[4][GETBYTE(temp, 1)] & 0x00ff0000) ^ |
Vanger | 0:b86d15c6ba29 | 1430 | (Te[4][GETBYTE(temp, 0)] & 0x0000ff00) ^ |
Vanger | 0:b86d15c6ba29 | 1431 | (Te[4][GETBYTE(temp, 3)] & 0x000000ff) ^ |
Vanger | 0:b86d15c6ba29 | 1432 | rcon[i]; |
Vanger | 0:b86d15c6ba29 | 1433 | rk[ 7] = rk[ 1] ^ rk[ 6]; |
Vanger | 0:b86d15c6ba29 | 1434 | rk[ 8] = rk[ 2] ^ rk[ 7]; |
Vanger | 0:b86d15c6ba29 | 1435 | rk[ 9] = rk[ 3] ^ rk[ 8]; |
Vanger | 0:b86d15c6ba29 | 1436 | if (++i == 8) |
Vanger | 0:b86d15c6ba29 | 1437 | break; |
Vanger | 0:b86d15c6ba29 | 1438 | rk[10] = rk[ 4] ^ rk[ 9]; |
Vanger | 0:b86d15c6ba29 | 1439 | rk[11] = rk[ 5] ^ rk[10]; |
Vanger | 0:b86d15c6ba29 | 1440 | rk += 6; |
Vanger | 0:b86d15c6ba29 | 1441 | } |
Vanger | 0:b86d15c6ba29 | 1442 | break; |
Vanger | 0:b86d15c6ba29 | 1443 | |
Vanger | 0:b86d15c6ba29 | 1444 | case 32: |
Vanger | 0:b86d15c6ba29 | 1445 | while (1) |
Vanger | 0:b86d15c6ba29 | 1446 | { |
Vanger | 0:b86d15c6ba29 | 1447 | temp = rk[ 7]; |
Vanger | 0:b86d15c6ba29 | 1448 | rk[ 8] = rk[ 0] ^ |
Vanger | 0:b86d15c6ba29 | 1449 | (Te[4][GETBYTE(temp, 2)] & 0xff000000) ^ |
Vanger | 0:b86d15c6ba29 | 1450 | (Te[4][GETBYTE(temp, 1)] & 0x00ff0000) ^ |
Vanger | 0:b86d15c6ba29 | 1451 | (Te[4][GETBYTE(temp, 0)] & 0x0000ff00) ^ |
Vanger | 0:b86d15c6ba29 | 1452 | (Te[4][GETBYTE(temp, 3)] & 0x000000ff) ^ |
Vanger | 0:b86d15c6ba29 | 1453 | rcon[i]; |
Vanger | 0:b86d15c6ba29 | 1454 | rk[ 9] = rk[ 1] ^ rk[ 8]; |
Vanger | 0:b86d15c6ba29 | 1455 | rk[10] = rk[ 2] ^ rk[ 9]; |
Vanger | 0:b86d15c6ba29 | 1456 | rk[11] = rk[ 3] ^ rk[10]; |
Vanger | 0:b86d15c6ba29 | 1457 | if (++i == 7) |
Vanger | 0:b86d15c6ba29 | 1458 | break; |
Vanger | 0:b86d15c6ba29 | 1459 | temp = rk[11]; |
Vanger | 0:b86d15c6ba29 | 1460 | rk[12] = rk[ 4] ^ |
Vanger | 0:b86d15c6ba29 | 1461 | (Te[4][GETBYTE(temp, 3)] & 0xff000000) ^ |
Vanger | 0:b86d15c6ba29 | 1462 | (Te[4][GETBYTE(temp, 2)] & 0x00ff0000) ^ |
Vanger | 0:b86d15c6ba29 | 1463 | (Te[4][GETBYTE(temp, 1)] & 0x0000ff00) ^ |
Vanger | 0:b86d15c6ba29 | 1464 | (Te[4][GETBYTE(temp, 0)] & 0x000000ff); |
Vanger | 0:b86d15c6ba29 | 1465 | rk[13] = rk[ 5] ^ rk[12]; |
Vanger | 0:b86d15c6ba29 | 1466 | rk[14] = rk[ 6] ^ rk[13]; |
Vanger | 0:b86d15c6ba29 | 1467 | rk[15] = rk[ 7] ^ rk[14]; |
Vanger | 0:b86d15c6ba29 | 1468 | |
Vanger | 0:b86d15c6ba29 | 1469 | rk += 8; |
Vanger | 0:b86d15c6ba29 | 1470 | } |
Vanger | 0:b86d15c6ba29 | 1471 | break; |
Vanger | 0:b86d15c6ba29 | 1472 | |
Vanger | 0:b86d15c6ba29 | 1473 | default: |
Vanger | 0:b86d15c6ba29 | 1474 | return BAD_FUNC_ARG; |
Vanger | 0:b86d15c6ba29 | 1475 | } |
Vanger | 0:b86d15c6ba29 | 1476 | |
Vanger | 0:b86d15c6ba29 | 1477 | if (dir == AES_DECRYPTION) |
Vanger | 0:b86d15c6ba29 | 1478 | { |
Vanger | 0:b86d15c6ba29 | 1479 | unsigned int j; |
Vanger | 0:b86d15c6ba29 | 1480 | rk = aes->key; |
Vanger | 0:b86d15c6ba29 | 1481 | |
Vanger | 0:b86d15c6ba29 | 1482 | /* invert the order of the round keys: */ |
Vanger | 0:b86d15c6ba29 | 1483 | for (i = 0, j = 4* aes->rounds; i < j; i += 4, j -= 4) { |
Vanger | 0:b86d15c6ba29 | 1484 | temp = rk[i ]; rk[i ] = rk[j ]; rk[j ] = temp; |
Vanger | 0:b86d15c6ba29 | 1485 | temp = rk[i + 1]; rk[i + 1] = rk[j + 1]; rk[j + 1] = temp; |
Vanger | 0:b86d15c6ba29 | 1486 | temp = rk[i + 2]; rk[i + 2] = rk[j + 2]; rk[j + 2] = temp; |
Vanger | 0:b86d15c6ba29 | 1487 | temp = rk[i + 3]; rk[i + 3] = rk[j + 3]; rk[j + 3] = temp; |
Vanger | 0:b86d15c6ba29 | 1488 | } |
Vanger | 0:b86d15c6ba29 | 1489 | /* apply the inverse MixColumn transform to all round keys but the |
Vanger | 0:b86d15c6ba29 | 1490 | first and the last: */ |
Vanger | 0:b86d15c6ba29 | 1491 | for (i = 1; i < aes->rounds; i++) { |
Vanger | 0:b86d15c6ba29 | 1492 | rk += 4; |
Vanger | 0:b86d15c6ba29 | 1493 | rk[0] = |
Vanger | 0:b86d15c6ba29 | 1494 | Td[0][Te[4][GETBYTE(rk[0], 3)] & 0xff] ^ |
Vanger | 0:b86d15c6ba29 | 1495 | Td[1][Te[4][GETBYTE(rk[0], 2)] & 0xff] ^ |
Vanger | 0:b86d15c6ba29 | 1496 | Td[2][Te[4][GETBYTE(rk[0], 1)] & 0xff] ^ |
Vanger | 0:b86d15c6ba29 | 1497 | Td[3][Te[4][GETBYTE(rk[0], 0)] & 0xff]; |
Vanger | 0:b86d15c6ba29 | 1498 | rk[1] = |
Vanger | 0:b86d15c6ba29 | 1499 | Td[0][Te[4][GETBYTE(rk[1], 3)] & 0xff] ^ |
Vanger | 0:b86d15c6ba29 | 1500 | Td[1][Te[4][GETBYTE(rk[1], 2)] & 0xff] ^ |
Vanger | 0:b86d15c6ba29 | 1501 | Td[2][Te[4][GETBYTE(rk[1], 1)] & 0xff] ^ |
Vanger | 0:b86d15c6ba29 | 1502 | Td[3][Te[4][GETBYTE(rk[1], 0)] & 0xff]; |
Vanger | 0:b86d15c6ba29 | 1503 | rk[2] = |
Vanger | 0:b86d15c6ba29 | 1504 | Td[0][Te[4][GETBYTE(rk[2], 3)] & 0xff] ^ |
Vanger | 0:b86d15c6ba29 | 1505 | Td[1][Te[4][GETBYTE(rk[2], 2)] & 0xff] ^ |
Vanger | 0:b86d15c6ba29 | 1506 | Td[2][Te[4][GETBYTE(rk[2], 1)] & 0xff] ^ |
Vanger | 0:b86d15c6ba29 | 1507 | Td[3][Te[4][GETBYTE(rk[2], 0)] & 0xff]; |
Vanger | 0:b86d15c6ba29 | 1508 | rk[3] = |
Vanger | 0:b86d15c6ba29 | 1509 | Td[0][Te[4][GETBYTE(rk[3], 3)] & 0xff] ^ |
Vanger | 0:b86d15c6ba29 | 1510 | Td[1][Te[4][GETBYTE(rk[3], 2)] & 0xff] ^ |
Vanger | 0:b86d15c6ba29 | 1511 | Td[2][Te[4][GETBYTE(rk[3], 1)] & 0xff] ^ |
Vanger | 0:b86d15c6ba29 | 1512 | Td[3][Te[4][GETBYTE(rk[3], 0)] & 0xff]; |
Vanger | 0:b86d15c6ba29 | 1513 | } |
Vanger | 0:b86d15c6ba29 | 1514 | } |
Vanger | 0:b86d15c6ba29 | 1515 | |
Vanger | 0:b86d15c6ba29 | 1516 | return AesSetIV(aes, iv); |
Vanger | 0:b86d15c6ba29 | 1517 | } |
Vanger | 0:b86d15c6ba29 | 1518 | |
Vanger | 0:b86d15c6ba29 | 1519 | int AesSetKey(Aes* aes, const byte* userKey, word32 keylen, const byte* iv, |
Vanger | 0:b86d15c6ba29 | 1520 | int dir) |
Vanger | 0:b86d15c6ba29 | 1521 | { |
Vanger | 0:b86d15c6ba29 | 1522 | |
Vanger | 0:b86d15c6ba29 | 1523 | if (!((keylen == 16) || (keylen == 24) || (keylen == 32))) |
Vanger | 0:b86d15c6ba29 | 1524 | return BAD_FUNC_ARG; |
Vanger | 0:b86d15c6ba29 | 1525 | |
Vanger | 0:b86d15c6ba29 | 1526 | #ifdef HAVE_CAVIUM |
Vanger | 0:b86d15c6ba29 | 1527 | if (aes->magic == CYASSL_AES_CAVIUM_MAGIC) |
Vanger | 0:b86d15c6ba29 | 1528 | return AesCaviumSetKey(aes, userKey, keylen, iv); |
Vanger | 0:b86d15c6ba29 | 1529 | #endif |
Vanger | 0:b86d15c6ba29 | 1530 | |
Vanger | 0:b86d15c6ba29 | 1531 | #ifdef CYASSL_AESNI |
Vanger | 0:b86d15c6ba29 | 1532 | if (checkAESNI == 0) { |
Vanger | 0:b86d15c6ba29 | 1533 | haveAESNI = Check_CPU_support_AES(); |
Vanger | 0:b86d15c6ba29 | 1534 | checkAESNI = 1; |
Vanger | 0:b86d15c6ba29 | 1535 | } |
Vanger | 0:b86d15c6ba29 | 1536 | if (haveAESNI) { |
Vanger | 0:b86d15c6ba29 | 1537 | aes->use_aesni = 1; |
Vanger | 0:b86d15c6ba29 | 1538 | if (iv) |
Vanger | 0:b86d15c6ba29 | 1539 | XMEMCPY(aes->reg, iv, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 1540 | if (dir == AES_ENCRYPTION) |
Vanger | 0:b86d15c6ba29 | 1541 | return AES_set_encrypt_key(userKey, keylen * 8, aes); |
Vanger | 0:b86d15c6ba29 | 1542 | else |
Vanger | 0:b86d15c6ba29 | 1543 | return AES_set_decrypt_key(userKey, keylen * 8, aes); |
Vanger | 0:b86d15c6ba29 | 1544 | } |
Vanger | 0:b86d15c6ba29 | 1545 | #endif /* CYASSL_AESNI */ |
Vanger | 0:b86d15c6ba29 | 1546 | |
Vanger | 0:b86d15c6ba29 | 1547 | return AesSetKeyLocal(aes, userKey, keylen, iv, dir); |
Vanger | 0:b86d15c6ba29 | 1548 | } |
Vanger | 0:b86d15c6ba29 | 1549 | |
Vanger | 0:b86d15c6ba29 | 1550 | #if defined(CYASSL_AES_DIRECT) || defined(CYASSL_AES_COUNTER) |
Vanger | 0:b86d15c6ba29 | 1551 | |
Vanger | 0:b86d15c6ba29 | 1552 | /* AES-CTR and AES-DIRECT need to use this for key setup, no aesni yet */ |
Vanger | 0:b86d15c6ba29 | 1553 | int AesSetKeyDirect(Aes* aes, const byte* userKey, word32 keylen, |
Vanger | 0:b86d15c6ba29 | 1554 | const byte* iv, int dir) |
Vanger | 0:b86d15c6ba29 | 1555 | { |
Vanger | 0:b86d15c6ba29 | 1556 | return AesSetKeyLocal(aes, userKey, keylen, iv, dir); |
Vanger | 0:b86d15c6ba29 | 1557 | } |
Vanger | 0:b86d15c6ba29 | 1558 | |
Vanger | 0:b86d15c6ba29 | 1559 | #endif /* CYASSL_AES_DIRECT || CYASSL_AES_COUNTER */ |
Vanger | 0:b86d15c6ba29 | 1560 | #endif /* STM32F2_CRYPTO, AesSetKey block */ |
Vanger | 0:b86d15c6ba29 | 1561 | |
Vanger | 0:b86d15c6ba29 | 1562 | |
Vanger | 0:b86d15c6ba29 | 1563 | /* AesSetIV is shared between software and hardware */ |
Vanger | 0:b86d15c6ba29 | 1564 | int AesSetIV(Aes* aes, const byte* iv) |
Vanger | 0:b86d15c6ba29 | 1565 | { |
Vanger | 0:b86d15c6ba29 | 1566 | if (aes == NULL) |
Vanger | 0:b86d15c6ba29 | 1567 | return BAD_FUNC_ARG; |
Vanger | 0:b86d15c6ba29 | 1568 | |
Vanger | 0:b86d15c6ba29 | 1569 | if (iv) |
Vanger | 0:b86d15c6ba29 | 1570 | XMEMCPY(aes->reg, iv, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 1571 | else |
Vanger | 0:b86d15c6ba29 | 1572 | XMEMSET(aes->reg, 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 1573 | |
Vanger | 0:b86d15c6ba29 | 1574 | return 0; |
Vanger | 0:b86d15c6ba29 | 1575 | } |
Vanger | 0:b86d15c6ba29 | 1576 | |
Vanger | 0:b86d15c6ba29 | 1577 | |
Vanger | 0:b86d15c6ba29 | 1578 | int AesCbcDecryptWithKey(byte* out, const byte* in, word32 inSz, |
Vanger | 0:b86d15c6ba29 | 1579 | const byte* key, word32 keySz, const byte* iv) |
Vanger | 0:b86d15c6ba29 | 1580 | { |
Vanger | 0:b86d15c6ba29 | 1581 | int ret = 0; |
Vanger | 0:b86d15c6ba29 | 1582 | #ifdef CYASSL_SMALL_STACK |
Vanger | 0:b86d15c6ba29 | 1583 | Aes* aes = NULL; |
Vanger | 0:b86d15c6ba29 | 1584 | #else |
Vanger | 0:b86d15c6ba29 | 1585 | Aes aes[1]; |
Vanger | 0:b86d15c6ba29 | 1586 | #endif |
Vanger | 0:b86d15c6ba29 | 1587 | |
Vanger | 0:b86d15c6ba29 | 1588 | #ifdef CYASSL_SMALL_STACK |
Vanger | 0:b86d15c6ba29 | 1589 | aes = (Aes*)XMALLOC(sizeof(Aes), NULL, DYNAMIC_TYPE_TMP_BUFFER); |
Vanger | 0:b86d15c6ba29 | 1590 | if (aes == NULL) |
Vanger | 0:b86d15c6ba29 | 1591 | return MEMORY_E; |
Vanger | 0:b86d15c6ba29 | 1592 | #endif |
Vanger | 0:b86d15c6ba29 | 1593 | |
Vanger | 0:b86d15c6ba29 | 1594 | ret = AesSetKey(aes, key, keySz, iv, AES_DECRYPTION); |
Vanger | 0:b86d15c6ba29 | 1595 | if (ret == 0) |
Vanger | 0:b86d15c6ba29 | 1596 | ret = AesCbcDecrypt(aes, out, in, inSz); |
Vanger | 0:b86d15c6ba29 | 1597 | |
Vanger | 0:b86d15c6ba29 | 1598 | #ifdef CYASSL_SMALL_STACK |
Vanger | 0:b86d15c6ba29 | 1599 | XFREE(aes, NULL, DYNAMIC_TYPE_TMP_BUFFER); |
Vanger | 0:b86d15c6ba29 | 1600 | #endif |
Vanger | 0:b86d15c6ba29 | 1601 | |
Vanger | 0:b86d15c6ba29 | 1602 | return ret; |
Vanger | 0:b86d15c6ba29 | 1603 | } |
Vanger | 0:b86d15c6ba29 | 1604 | |
Vanger | 0:b86d15c6ba29 | 1605 | |
Vanger | 0:b86d15c6ba29 | 1606 | /* AES-DIRECT */ |
Vanger | 0:b86d15c6ba29 | 1607 | #if defined(CYASSL_AES_DIRECT) |
Vanger | 0:b86d15c6ba29 | 1608 | #if defined(FREESCALE_MMCAU) |
Vanger | 0:b86d15c6ba29 | 1609 | |
Vanger | 0:b86d15c6ba29 | 1610 | /* Allow direct access to one block encrypt */ |
Vanger | 0:b86d15c6ba29 | 1611 | void AesEncryptDirect(Aes* aes, byte* out, const byte* in) |
Vanger | 0:b86d15c6ba29 | 1612 | { |
Vanger | 0:b86d15c6ba29 | 1613 | byte* key; |
Vanger | 0:b86d15c6ba29 | 1614 | key = (byte*)aes->key; |
Vanger | 0:b86d15c6ba29 | 1615 | |
Vanger | 0:b86d15c6ba29 | 1616 | return cau_aes_encrypt(in, key, aes->rounds, out); |
Vanger | 0:b86d15c6ba29 | 1617 | } |
Vanger | 0:b86d15c6ba29 | 1618 | |
Vanger | 0:b86d15c6ba29 | 1619 | /* Allow direct access to one block decrypt */ |
Vanger | 0:b86d15c6ba29 | 1620 | void AesDecryptDirect(Aes* aes, byte* out, const byte* in) |
Vanger | 0:b86d15c6ba29 | 1621 | { |
Vanger | 0:b86d15c6ba29 | 1622 | byte* key; |
Vanger | 0:b86d15c6ba29 | 1623 | key = (byte*)aes->key; |
Vanger | 0:b86d15c6ba29 | 1624 | |
Vanger | 0:b86d15c6ba29 | 1625 | return cau_aes_decrypt(in, key, aes->rounds, out); |
Vanger | 0:b86d15c6ba29 | 1626 | } |
Vanger | 0:b86d15c6ba29 | 1627 | |
Vanger | 0:b86d15c6ba29 | 1628 | #elif defined(STM32F2_CRYPTO) |
Vanger | 0:b86d15c6ba29 | 1629 | #error "STM32F2 crypto doesn't yet support AES direct" |
Vanger | 0:b86d15c6ba29 | 1630 | |
Vanger | 0:b86d15c6ba29 | 1631 | #elif defined(HAVE_COLDFIRE_SEC) |
Vanger | 0:b86d15c6ba29 | 1632 | #error "Coldfire SEC doesn't yet support AES direct" |
Vanger | 0:b86d15c6ba29 | 1633 | |
Vanger | 0:b86d15c6ba29 | 1634 | #elif defined(CYASSL_PIC32MZ_CRYPT) |
Vanger | 0:b86d15c6ba29 | 1635 | #error "PIC32MZ doesn't yet support AES direct" |
Vanger | 0:b86d15c6ba29 | 1636 | |
Vanger | 0:b86d15c6ba29 | 1637 | #else |
Vanger | 0:b86d15c6ba29 | 1638 | /* Allow direct access to one block encrypt */ |
Vanger | 0:b86d15c6ba29 | 1639 | void AesEncryptDirect(Aes* aes, byte* out, const byte* in) |
Vanger | 0:b86d15c6ba29 | 1640 | { |
Vanger | 0:b86d15c6ba29 | 1641 | return AesEncrypt(aes, in, out); |
Vanger | 0:b86d15c6ba29 | 1642 | } |
Vanger | 0:b86d15c6ba29 | 1643 | |
Vanger | 0:b86d15c6ba29 | 1644 | /* Allow direct access to one block decrypt */ |
Vanger | 0:b86d15c6ba29 | 1645 | void AesDecryptDirect(Aes* aes, byte* out, const byte* in) |
Vanger | 0:b86d15c6ba29 | 1646 | { |
Vanger | 0:b86d15c6ba29 | 1647 | return AesDecrypt(aes, in, out); |
Vanger | 0:b86d15c6ba29 | 1648 | } |
Vanger | 0:b86d15c6ba29 | 1649 | |
Vanger | 0:b86d15c6ba29 | 1650 | #endif /* FREESCALE_MMCAU, AES direct block */ |
Vanger | 0:b86d15c6ba29 | 1651 | #endif /* CYASSL_AES_DIRECT */ |
Vanger | 0:b86d15c6ba29 | 1652 | |
Vanger | 0:b86d15c6ba29 | 1653 | |
Vanger | 0:b86d15c6ba29 | 1654 | /* AES-CBC */ |
Vanger | 0:b86d15c6ba29 | 1655 | #ifdef STM32F2_CRYPTO |
Vanger | 0:b86d15c6ba29 | 1656 | int AesCbcEncrypt(Aes* aes, byte* out, const byte* in, word32 sz) |
Vanger | 0:b86d15c6ba29 | 1657 | { |
Vanger | 0:b86d15c6ba29 | 1658 | word32 *enc_key, *iv; |
Vanger | 0:b86d15c6ba29 | 1659 | CRYP_InitTypeDef AES_CRYP_InitStructure; |
Vanger | 0:b86d15c6ba29 | 1660 | CRYP_KeyInitTypeDef AES_CRYP_KeyInitStructure; |
Vanger | 0:b86d15c6ba29 | 1661 | CRYP_IVInitTypeDef AES_CRYP_IVInitStructure; |
Vanger | 0:b86d15c6ba29 | 1662 | |
Vanger | 0:b86d15c6ba29 | 1663 | enc_key = aes->key; |
Vanger | 0:b86d15c6ba29 | 1664 | iv = aes->reg; |
Vanger | 0:b86d15c6ba29 | 1665 | |
Vanger | 0:b86d15c6ba29 | 1666 | /* crypto structure initialization */ |
Vanger | 0:b86d15c6ba29 | 1667 | CRYP_KeyStructInit(&AES_CRYP_KeyInitStructure); |
Vanger | 0:b86d15c6ba29 | 1668 | CRYP_StructInit(&AES_CRYP_InitStructure); |
Vanger | 0:b86d15c6ba29 | 1669 | CRYP_IVStructInit(&AES_CRYP_IVInitStructure); |
Vanger | 0:b86d15c6ba29 | 1670 | |
Vanger | 0:b86d15c6ba29 | 1671 | /* reset registers to their default values */ |
Vanger | 0:b86d15c6ba29 | 1672 | CRYP_DeInit(); |
Vanger | 0:b86d15c6ba29 | 1673 | |
Vanger | 0:b86d15c6ba29 | 1674 | /* load key into correct registers */ |
Vanger | 0:b86d15c6ba29 | 1675 | switch(aes->rounds) |
Vanger | 0:b86d15c6ba29 | 1676 | { |
Vanger | 0:b86d15c6ba29 | 1677 | case 10: /* 128-bit key */ |
Vanger | 0:b86d15c6ba29 | 1678 | AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_128b; |
Vanger | 0:b86d15c6ba29 | 1679 | AES_CRYP_KeyInitStructure.CRYP_Key2Left = enc_key[0]; |
Vanger | 0:b86d15c6ba29 | 1680 | AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[1]; |
Vanger | 0:b86d15c6ba29 | 1681 | AES_CRYP_KeyInitStructure.CRYP_Key3Left = enc_key[2]; |
Vanger | 0:b86d15c6ba29 | 1682 | AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[3]; |
Vanger | 0:b86d15c6ba29 | 1683 | break; |
Vanger | 0:b86d15c6ba29 | 1684 | |
Vanger | 0:b86d15c6ba29 | 1685 | case 12: /* 192-bit key */ |
Vanger | 0:b86d15c6ba29 | 1686 | AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_192b; |
Vanger | 0:b86d15c6ba29 | 1687 | AES_CRYP_KeyInitStructure.CRYP_Key1Left = enc_key[0]; |
Vanger | 0:b86d15c6ba29 | 1688 | AES_CRYP_KeyInitStructure.CRYP_Key1Right = enc_key[1]; |
Vanger | 0:b86d15c6ba29 | 1689 | AES_CRYP_KeyInitStructure.CRYP_Key2Left = enc_key[2]; |
Vanger | 0:b86d15c6ba29 | 1690 | AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[3]; |
Vanger | 0:b86d15c6ba29 | 1691 | AES_CRYP_KeyInitStructure.CRYP_Key3Left = enc_key[4]; |
Vanger | 0:b86d15c6ba29 | 1692 | AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[5]; |
Vanger | 0:b86d15c6ba29 | 1693 | break; |
Vanger | 0:b86d15c6ba29 | 1694 | |
Vanger | 0:b86d15c6ba29 | 1695 | case 14: /* 256-bit key */ |
Vanger | 0:b86d15c6ba29 | 1696 | AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_256b; |
Vanger | 0:b86d15c6ba29 | 1697 | AES_CRYP_KeyInitStructure.CRYP_Key0Left = enc_key[0]; |
Vanger | 0:b86d15c6ba29 | 1698 | AES_CRYP_KeyInitStructure.CRYP_Key0Right = enc_key[1]; |
Vanger | 0:b86d15c6ba29 | 1699 | AES_CRYP_KeyInitStructure.CRYP_Key1Left = enc_key[2]; |
Vanger | 0:b86d15c6ba29 | 1700 | AES_CRYP_KeyInitStructure.CRYP_Key1Right = enc_key[3]; |
Vanger | 0:b86d15c6ba29 | 1701 | AES_CRYP_KeyInitStructure.CRYP_Key2Left = enc_key[4]; |
Vanger | 0:b86d15c6ba29 | 1702 | AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[5]; |
Vanger | 0:b86d15c6ba29 | 1703 | AES_CRYP_KeyInitStructure.CRYP_Key3Left = enc_key[6]; |
Vanger | 0:b86d15c6ba29 | 1704 | AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[7]; |
Vanger | 0:b86d15c6ba29 | 1705 | break; |
Vanger | 0:b86d15c6ba29 | 1706 | |
Vanger | 0:b86d15c6ba29 | 1707 | default: |
Vanger | 0:b86d15c6ba29 | 1708 | break; |
Vanger | 0:b86d15c6ba29 | 1709 | } |
Vanger | 0:b86d15c6ba29 | 1710 | CRYP_KeyInit(&AES_CRYP_KeyInitStructure); |
Vanger | 0:b86d15c6ba29 | 1711 | |
Vanger | 0:b86d15c6ba29 | 1712 | /* set iv */ |
Vanger | 0:b86d15c6ba29 | 1713 | ByteReverseWords(iv, iv, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 1714 | AES_CRYP_IVInitStructure.CRYP_IV0Left = iv[0]; |
Vanger | 0:b86d15c6ba29 | 1715 | AES_CRYP_IVInitStructure.CRYP_IV0Right = iv[1]; |
Vanger | 0:b86d15c6ba29 | 1716 | AES_CRYP_IVInitStructure.CRYP_IV1Left = iv[2]; |
Vanger | 0:b86d15c6ba29 | 1717 | AES_CRYP_IVInitStructure.CRYP_IV1Right = iv[3]; |
Vanger | 0:b86d15c6ba29 | 1718 | CRYP_IVInit(&AES_CRYP_IVInitStructure); |
Vanger | 0:b86d15c6ba29 | 1719 | |
Vanger | 0:b86d15c6ba29 | 1720 | /* set direction, mode, and datatype */ |
Vanger | 0:b86d15c6ba29 | 1721 | AES_CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Encrypt; |
Vanger | 0:b86d15c6ba29 | 1722 | AES_CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_AES_CBC; |
Vanger | 0:b86d15c6ba29 | 1723 | AES_CRYP_InitStructure.CRYP_DataType = CRYP_DataType_8b; |
Vanger | 0:b86d15c6ba29 | 1724 | CRYP_Init(&AES_CRYP_InitStructure); |
Vanger | 0:b86d15c6ba29 | 1725 | |
Vanger | 0:b86d15c6ba29 | 1726 | /* enable crypto processor */ |
Vanger | 0:b86d15c6ba29 | 1727 | CRYP_Cmd(ENABLE); |
Vanger | 0:b86d15c6ba29 | 1728 | |
Vanger | 0:b86d15c6ba29 | 1729 | while (sz > 0) |
Vanger | 0:b86d15c6ba29 | 1730 | { |
Vanger | 0:b86d15c6ba29 | 1731 | /* flush IN/OUT FIFOs */ |
Vanger | 0:b86d15c6ba29 | 1732 | CRYP_FIFOFlush(); |
Vanger | 0:b86d15c6ba29 | 1733 | |
Vanger | 0:b86d15c6ba29 | 1734 | CRYP_DataIn(*(uint32_t*)&in[0]); |
Vanger | 0:b86d15c6ba29 | 1735 | CRYP_DataIn(*(uint32_t*)&in[4]); |
Vanger | 0:b86d15c6ba29 | 1736 | CRYP_DataIn(*(uint32_t*)&in[8]); |
Vanger | 0:b86d15c6ba29 | 1737 | CRYP_DataIn(*(uint32_t*)&in[12]); |
Vanger | 0:b86d15c6ba29 | 1738 | |
Vanger | 0:b86d15c6ba29 | 1739 | /* wait until the complete message has been processed */ |
Vanger | 0:b86d15c6ba29 | 1740 | while(CRYP_GetFlagStatus(CRYP_FLAG_BUSY) != RESET) {} |
Vanger | 0:b86d15c6ba29 | 1741 | |
Vanger | 0:b86d15c6ba29 | 1742 | *(uint32_t*)&out[0] = CRYP_DataOut(); |
Vanger | 0:b86d15c6ba29 | 1743 | *(uint32_t*)&out[4] = CRYP_DataOut(); |
Vanger | 0:b86d15c6ba29 | 1744 | *(uint32_t*)&out[8] = CRYP_DataOut(); |
Vanger | 0:b86d15c6ba29 | 1745 | *(uint32_t*)&out[12] = CRYP_DataOut(); |
Vanger | 0:b86d15c6ba29 | 1746 | |
Vanger | 0:b86d15c6ba29 | 1747 | /* store iv for next call */ |
Vanger | 0:b86d15c6ba29 | 1748 | XMEMCPY(aes->reg, out + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 1749 | |
Vanger | 0:b86d15c6ba29 | 1750 | sz -= 16; |
Vanger | 0:b86d15c6ba29 | 1751 | in += 16; |
Vanger | 0:b86d15c6ba29 | 1752 | out += 16; |
Vanger | 0:b86d15c6ba29 | 1753 | } |
Vanger | 0:b86d15c6ba29 | 1754 | |
Vanger | 0:b86d15c6ba29 | 1755 | /* disable crypto processor */ |
Vanger | 0:b86d15c6ba29 | 1756 | CRYP_Cmd(DISABLE); |
Vanger | 0:b86d15c6ba29 | 1757 | |
Vanger | 0:b86d15c6ba29 | 1758 | return 0; |
Vanger | 0:b86d15c6ba29 | 1759 | } |
Vanger | 0:b86d15c6ba29 | 1760 | |
Vanger | 0:b86d15c6ba29 | 1761 | int AesCbcDecrypt(Aes* aes, byte* out, const byte* in, word32 sz) |
Vanger | 0:b86d15c6ba29 | 1762 | { |
Vanger | 0:b86d15c6ba29 | 1763 | word32 *dec_key, *iv; |
Vanger | 0:b86d15c6ba29 | 1764 | CRYP_InitTypeDef AES_CRYP_InitStructure; |
Vanger | 0:b86d15c6ba29 | 1765 | CRYP_KeyInitTypeDef AES_CRYP_KeyInitStructure; |
Vanger | 0:b86d15c6ba29 | 1766 | CRYP_IVInitTypeDef AES_CRYP_IVInitStructure; |
Vanger | 0:b86d15c6ba29 | 1767 | |
Vanger | 0:b86d15c6ba29 | 1768 | dec_key = aes->key; |
Vanger | 0:b86d15c6ba29 | 1769 | iv = aes->reg; |
Vanger | 0:b86d15c6ba29 | 1770 | |
Vanger | 0:b86d15c6ba29 | 1771 | /* crypto structure initialization */ |
Vanger | 0:b86d15c6ba29 | 1772 | CRYP_KeyStructInit(&AES_CRYP_KeyInitStructure); |
Vanger | 0:b86d15c6ba29 | 1773 | CRYP_StructInit(&AES_CRYP_InitStructure); |
Vanger | 0:b86d15c6ba29 | 1774 | CRYP_IVStructInit(&AES_CRYP_IVInitStructure); |
Vanger | 0:b86d15c6ba29 | 1775 | |
Vanger | 0:b86d15c6ba29 | 1776 | /* if input and output same will overwrite input iv */ |
Vanger | 0:b86d15c6ba29 | 1777 | XMEMCPY(aes->tmp, in + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 1778 | |
Vanger | 0:b86d15c6ba29 | 1779 | /* reset registers to their default values */ |
Vanger | 0:b86d15c6ba29 | 1780 | CRYP_DeInit(); |
Vanger | 0:b86d15c6ba29 | 1781 | |
Vanger | 0:b86d15c6ba29 | 1782 | /* load key into correct registers */ |
Vanger | 0:b86d15c6ba29 | 1783 | switch(aes->rounds) |
Vanger | 0:b86d15c6ba29 | 1784 | { |
Vanger | 0:b86d15c6ba29 | 1785 | case 10: /* 128-bit key */ |
Vanger | 0:b86d15c6ba29 | 1786 | AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_128b; |
Vanger | 0:b86d15c6ba29 | 1787 | AES_CRYP_KeyInitStructure.CRYP_Key2Left = dec_key[0]; |
Vanger | 0:b86d15c6ba29 | 1788 | AES_CRYP_KeyInitStructure.CRYP_Key2Right = dec_key[1]; |
Vanger | 0:b86d15c6ba29 | 1789 | AES_CRYP_KeyInitStructure.CRYP_Key3Left = dec_key[2]; |
Vanger | 0:b86d15c6ba29 | 1790 | AES_CRYP_KeyInitStructure.CRYP_Key3Right = dec_key[3]; |
Vanger | 0:b86d15c6ba29 | 1791 | break; |
Vanger | 0:b86d15c6ba29 | 1792 | |
Vanger | 0:b86d15c6ba29 | 1793 | case 12: /* 192-bit key */ |
Vanger | 0:b86d15c6ba29 | 1794 | AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_192b; |
Vanger | 0:b86d15c6ba29 | 1795 | AES_CRYP_KeyInitStructure.CRYP_Key1Left = dec_key[0]; |
Vanger | 0:b86d15c6ba29 | 1796 | AES_CRYP_KeyInitStructure.CRYP_Key1Right = dec_key[1]; |
Vanger | 0:b86d15c6ba29 | 1797 | AES_CRYP_KeyInitStructure.CRYP_Key2Left = dec_key[2]; |
Vanger | 0:b86d15c6ba29 | 1798 | AES_CRYP_KeyInitStructure.CRYP_Key2Right = dec_key[3]; |
Vanger | 0:b86d15c6ba29 | 1799 | AES_CRYP_KeyInitStructure.CRYP_Key3Left = dec_key[4]; |
Vanger | 0:b86d15c6ba29 | 1800 | AES_CRYP_KeyInitStructure.CRYP_Key3Right = dec_key[5]; |
Vanger | 0:b86d15c6ba29 | 1801 | break; |
Vanger | 0:b86d15c6ba29 | 1802 | |
Vanger | 0:b86d15c6ba29 | 1803 | case 14: /* 256-bit key */ |
Vanger | 0:b86d15c6ba29 | 1804 | AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_256b; |
Vanger | 0:b86d15c6ba29 | 1805 | AES_CRYP_KeyInitStructure.CRYP_Key0Left = dec_key[0]; |
Vanger | 0:b86d15c6ba29 | 1806 | AES_CRYP_KeyInitStructure.CRYP_Key0Right = dec_key[1]; |
Vanger | 0:b86d15c6ba29 | 1807 | AES_CRYP_KeyInitStructure.CRYP_Key1Left = dec_key[2]; |
Vanger | 0:b86d15c6ba29 | 1808 | AES_CRYP_KeyInitStructure.CRYP_Key1Right = dec_key[3]; |
Vanger | 0:b86d15c6ba29 | 1809 | AES_CRYP_KeyInitStructure.CRYP_Key2Left = dec_key[4]; |
Vanger | 0:b86d15c6ba29 | 1810 | AES_CRYP_KeyInitStructure.CRYP_Key2Right = dec_key[5]; |
Vanger | 0:b86d15c6ba29 | 1811 | AES_CRYP_KeyInitStructure.CRYP_Key3Left = dec_key[6]; |
Vanger | 0:b86d15c6ba29 | 1812 | AES_CRYP_KeyInitStructure.CRYP_Key3Right = dec_key[7]; |
Vanger | 0:b86d15c6ba29 | 1813 | break; |
Vanger | 0:b86d15c6ba29 | 1814 | |
Vanger | 0:b86d15c6ba29 | 1815 | default: |
Vanger | 0:b86d15c6ba29 | 1816 | break; |
Vanger | 0:b86d15c6ba29 | 1817 | } |
Vanger | 0:b86d15c6ba29 | 1818 | |
Vanger | 0:b86d15c6ba29 | 1819 | /* set direction, mode, and datatype for key preparation */ |
Vanger | 0:b86d15c6ba29 | 1820 | AES_CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Decrypt; |
Vanger | 0:b86d15c6ba29 | 1821 | AES_CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_AES_Key; |
Vanger | 0:b86d15c6ba29 | 1822 | AES_CRYP_InitStructure.CRYP_DataType = CRYP_DataType_32b; |
Vanger | 0:b86d15c6ba29 | 1823 | CRYP_Init(&AES_CRYP_InitStructure); |
Vanger | 0:b86d15c6ba29 | 1824 | CRYP_KeyInit(&AES_CRYP_KeyInitStructure); |
Vanger | 0:b86d15c6ba29 | 1825 | |
Vanger | 0:b86d15c6ba29 | 1826 | /* enable crypto processor */ |
Vanger | 0:b86d15c6ba29 | 1827 | CRYP_Cmd(ENABLE); |
Vanger | 0:b86d15c6ba29 | 1828 | |
Vanger | 0:b86d15c6ba29 | 1829 | /* wait until key has been prepared */ |
Vanger | 0:b86d15c6ba29 | 1830 | while(CRYP_GetFlagStatus(CRYP_FLAG_BUSY) != RESET) {} |
Vanger | 0:b86d15c6ba29 | 1831 | |
Vanger | 0:b86d15c6ba29 | 1832 | /* set direction, mode, and datatype for decryption */ |
Vanger | 0:b86d15c6ba29 | 1833 | AES_CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Decrypt; |
Vanger | 0:b86d15c6ba29 | 1834 | AES_CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_AES_CBC; |
Vanger | 0:b86d15c6ba29 | 1835 | AES_CRYP_InitStructure.CRYP_DataType = CRYP_DataType_8b; |
Vanger | 0:b86d15c6ba29 | 1836 | CRYP_Init(&AES_CRYP_InitStructure); |
Vanger | 0:b86d15c6ba29 | 1837 | |
Vanger | 0:b86d15c6ba29 | 1838 | /* set iv */ |
Vanger | 0:b86d15c6ba29 | 1839 | ByteReverseWords(iv, iv, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 1840 | |
Vanger | 0:b86d15c6ba29 | 1841 | AES_CRYP_IVInitStructure.CRYP_IV0Left = iv[0]; |
Vanger | 0:b86d15c6ba29 | 1842 | AES_CRYP_IVInitStructure.CRYP_IV0Right = iv[1]; |
Vanger | 0:b86d15c6ba29 | 1843 | AES_CRYP_IVInitStructure.CRYP_IV1Left = iv[2]; |
Vanger | 0:b86d15c6ba29 | 1844 | AES_CRYP_IVInitStructure.CRYP_IV1Right = iv[3]; |
Vanger | 0:b86d15c6ba29 | 1845 | CRYP_IVInit(&AES_CRYP_IVInitStructure); |
Vanger | 0:b86d15c6ba29 | 1846 | |
Vanger | 0:b86d15c6ba29 | 1847 | /* enable crypto processor */ |
Vanger | 0:b86d15c6ba29 | 1848 | CRYP_Cmd(ENABLE); |
Vanger | 0:b86d15c6ba29 | 1849 | |
Vanger | 0:b86d15c6ba29 | 1850 | while (sz > 0) |
Vanger | 0:b86d15c6ba29 | 1851 | { |
Vanger | 0:b86d15c6ba29 | 1852 | /* flush IN/OUT FIFOs */ |
Vanger | 0:b86d15c6ba29 | 1853 | CRYP_FIFOFlush(); |
Vanger | 0:b86d15c6ba29 | 1854 | |
Vanger | 0:b86d15c6ba29 | 1855 | CRYP_DataIn(*(uint32_t*)&in[0]); |
Vanger | 0:b86d15c6ba29 | 1856 | CRYP_DataIn(*(uint32_t*)&in[4]); |
Vanger | 0:b86d15c6ba29 | 1857 | CRYP_DataIn(*(uint32_t*)&in[8]); |
Vanger | 0:b86d15c6ba29 | 1858 | CRYP_DataIn(*(uint32_t*)&in[12]); |
Vanger | 0:b86d15c6ba29 | 1859 | |
Vanger | 0:b86d15c6ba29 | 1860 | /* wait until the complete message has been processed */ |
Vanger | 0:b86d15c6ba29 | 1861 | while(CRYP_GetFlagStatus(CRYP_FLAG_BUSY) != RESET) {} |
Vanger | 0:b86d15c6ba29 | 1862 | |
Vanger | 0:b86d15c6ba29 | 1863 | *(uint32_t*)&out[0] = CRYP_DataOut(); |
Vanger | 0:b86d15c6ba29 | 1864 | *(uint32_t*)&out[4] = CRYP_DataOut(); |
Vanger | 0:b86d15c6ba29 | 1865 | *(uint32_t*)&out[8] = CRYP_DataOut(); |
Vanger | 0:b86d15c6ba29 | 1866 | *(uint32_t*)&out[12] = CRYP_DataOut(); |
Vanger | 0:b86d15c6ba29 | 1867 | |
Vanger | 0:b86d15c6ba29 | 1868 | /* store iv for next call */ |
Vanger | 0:b86d15c6ba29 | 1869 | XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 1870 | |
Vanger | 0:b86d15c6ba29 | 1871 | sz -= 16; |
Vanger | 0:b86d15c6ba29 | 1872 | in += 16; |
Vanger | 0:b86d15c6ba29 | 1873 | out += 16; |
Vanger | 0:b86d15c6ba29 | 1874 | } |
Vanger | 0:b86d15c6ba29 | 1875 | |
Vanger | 0:b86d15c6ba29 | 1876 | /* disable crypto processor */ |
Vanger | 0:b86d15c6ba29 | 1877 | CRYP_Cmd(DISABLE); |
Vanger | 0:b86d15c6ba29 | 1878 | |
Vanger | 0:b86d15c6ba29 | 1879 | return 0; |
Vanger | 0:b86d15c6ba29 | 1880 | } |
Vanger | 0:b86d15c6ba29 | 1881 | |
Vanger | 0:b86d15c6ba29 | 1882 | #elif defined(HAVE_COLDFIRE_SEC) |
Vanger | 0:b86d15c6ba29 | 1883 | static int AesCbcCrypt(Aes* aes, byte* po, const byte* pi, word32 sz, |
Vanger | 0:b86d15c6ba29 | 1884 | word32 descHeader) |
Vanger | 0:b86d15c6ba29 | 1885 | { |
Vanger | 0:b86d15c6ba29 | 1886 | #ifdef DEBUG_CYASSL |
Vanger | 0:b86d15c6ba29 | 1887 | int i; int stat1, stat2; int ret; |
Vanger | 0:b86d15c6ba29 | 1888 | #endif |
Vanger | 0:b86d15c6ba29 | 1889 | |
Vanger | 0:b86d15c6ba29 | 1890 | int size; |
Vanger | 0:b86d15c6ba29 | 1891 | volatile int v; |
Vanger | 0:b86d15c6ba29 | 1892 | |
Vanger | 0:b86d15c6ba29 | 1893 | if ((pi == NULL) || (po == NULL)) |
Vanger | 0:b86d15c6ba29 | 1894 | return BAD_FUNC_ARG; /*wrong pointer*/ |
Vanger | 0:b86d15c6ba29 | 1895 | |
Vanger | 0:b86d15c6ba29 | 1896 | LockMutex(&Mutex_AesSEC); |
Vanger | 0:b86d15c6ba29 | 1897 | |
Vanger | 0:b86d15c6ba29 | 1898 | /* Set descriptor for SEC */ |
Vanger | 0:b86d15c6ba29 | 1899 | secDesc->length1 = 0x0; |
Vanger | 0:b86d15c6ba29 | 1900 | secDesc->pointer1 = NULL; |
Vanger | 0:b86d15c6ba29 | 1901 | |
Vanger | 0:b86d15c6ba29 | 1902 | secDesc->length2 = AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 1903 | secDesc->pointer2 = (byte *)secReg; /* Initial Vector */ |
Vanger | 0:b86d15c6ba29 | 1904 | |
Vanger | 0:b86d15c6ba29 | 1905 | switch(aes->rounds) { |
Vanger | 0:b86d15c6ba29 | 1906 | case 10: secDesc->length3 = 16 ; break ; |
Vanger | 0:b86d15c6ba29 | 1907 | case 12: secDesc->length3 = 24 ; break ; |
Vanger | 0:b86d15c6ba29 | 1908 | case 14: secDesc->length3 = 32 ; break ; |
Vanger | 0:b86d15c6ba29 | 1909 | } |
Vanger | 0:b86d15c6ba29 | 1910 | XMEMCPY(secKey, aes->key, secDesc->length3); |
Vanger | 0:b86d15c6ba29 | 1911 | |
Vanger | 0:b86d15c6ba29 | 1912 | secDesc->pointer3 = (byte *)secKey; |
Vanger | 0:b86d15c6ba29 | 1913 | secDesc->pointer4 = AESBuffIn; |
Vanger | 0:b86d15c6ba29 | 1914 | secDesc->pointer5 = AESBuffOut; |
Vanger | 0:b86d15c6ba29 | 1915 | secDesc->length6 = 0x0; |
Vanger | 0:b86d15c6ba29 | 1916 | secDesc->pointer6 = NULL; |
Vanger | 0:b86d15c6ba29 | 1917 | secDesc->length7 = 0x0; |
Vanger | 0:b86d15c6ba29 | 1918 | secDesc->pointer7 = NULL; |
Vanger | 0:b86d15c6ba29 | 1919 | secDesc->nextDescriptorPtr = NULL; |
Vanger | 0:b86d15c6ba29 | 1920 | |
Vanger | 0:b86d15c6ba29 | 1921 | while (sz) { |
Vanger | 0:b86d15c6ba29 | 1922 | secDesc->header = descHeader; |
Vanger | 0:b86d15c6ba29 | 1923 | XMEMCPY(secReg, aes->reg, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 1924 | if ((sz % AES_BUFFER_SIZE) == sz) { |
Vanger | 0:b86d15c6ba29 | 1925 | size = sz; |
Vanger | 0:b86d15c6ba29 | 1926 | sz = 0; |
Vanger | 0:b86d15c6ba29 | 1927 | } else { |
Vanger | 0:b86d15c6ba29 | 1928 | size = AES_BUFFER_SIZE; |
Vanger | 0:b86d15c6ba29 | 1929 | sz -= AES_BUFFER_SIZE; |
Vanger | 0:b86d15c6ba29 | 1930 | } |
Vanger | 0:b86d15c6ba29 | 1931 | secDesc->length4 = size; |
Vanger | 0:b86d15c6ba29 | 1932 | secDesc->length5 = size; |
Vanger | 0:b86d15c6ba29 | 1933 | |
Vanger | 0:b86d15c6ba29 | 1934 | XMEMCPY(AESBuffIn, pi, size); |
Vanger | 0:b86d15c6ba29 | 1935 | if(descHeader == SEC_DESC_AES_CBC_DECRYPT) { |
Vanger | 0:b86d15c6ba29 | 1936 | XMEMCPY((void*)aes->tmp, (void*)&(pi[size-AES_BLOCK_SIZE]), |
Vanger | 0:b86d15c6ba29 | 1937 | AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 1938 | } |
Vanger | 0:b86d15c6ba29 | 1939 | |
Vanger | 0:b86d15c6ba29 | 1940 | /* Point SEC to the location of the descriptor */ |
Vanger | 0:b86d15c6ba29 | 1941 | MCF_SEC_FR0 = (uint32)secDesc; |
Vanger | 0:b86d15c6ba29 | 1942 | /* Initialize SEC and wait for encryption to complete */ |
Vanger | 0:b86d15c6ba29 | 1943 | MCF_SEC_CCCR0 = 0x0000001a; |
Vanger | 0:b86d15c6ba29 | 1944 | /* poll SISR to determine when channel is complete */ |
Vanger | 0:b86d15c6ba29 | 1945 | v=0; |
Vanger | 0:b86d15c6ba29 | 1946 | |
Vanger | 0:b86d15c6ba29 | 1947 | while ((secDesc->header>> 24) != 0xff) v++; |
Vanger | 0:b86d15c6ba29 | 1948 | |
Vanger | 0:b86d15c6ba29 | 1949 | #ifdef DEBUG_CYASSL |
Vanger | 0:b86d15c6ba29 | 1950 | ret = MCF_SEC_SISRH; |
Vanger | 0:b86d15c6ba29 | 1951 | stat1 = MCF_SEC_AESSR; |
Vanger | 0:b86d15c6ba29 | 1952 | stat2 = MCF_SEC_AESISR; |
Vanger | 0:b86d15c6ba29 | 1953 | if (ret & 0xe0000000) { |
Vanger | 0:b86d15c6ba29 | 1954 | db_printf("Aes_Cbc(i=%d):ISRH=%08x, AESSR=%08x, " |
Vanger | 0:b86d15c6ba29 | 1955 | "AESISR=%08x\n", i, ret, stat1, stat2); |
Vanger | 0:b86d15c6ba29 | 1956 | } |
Vanger | 0:b86d15c6ba29 | 1957 | #endif |
Vanger | 0:b86d15c6ba29 | 1958 | |
Vanger | 0:b86d15c6ba29 | 1959 | XMEMCPY(po, AESBuffOut, size); |
Vanger | 0:b86d15c6ba29 | 1960 | |
Vanger | 0:b86d15c6ba29 | 1961 | if (descHeader == SEC_DESC_AES_CBC_ENCRYPT) { |
Vanger | 0:b86d15c6ba29 | 1962 | XMEMCPY((void*)aes->reg, (void*)&(po[size-AES_BLOCK_SIZE]), |
Vanger | 0:b86d15c6ba29 | 1963 | AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 1964 | } else { |
Vanger | 0:b86d15c6ba29 | 1965 | XMEMCPY((void*)aes->reg, (void*)aes->tmp, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 1966 | } |
Vanger | 0:b86d15c6ba29 | 1967 | |
Vanger | 0:b86d15c6ba29 | 1968 | pi += size; |
Vanger | 0:b86d15c6ba29 | 1969 | po += size; |
Vanger | 0:b86d15c6ba29 | 1970 | } |
Vanger | 0:b86d15c6ba29 | 1971 | |
Vanger | 0:b86d15c6ba29 | 1972 | UnLockMutex(&Mutex_AesSEC); |
Vanger | 0:b86d15c6ba29 | 1973 | return 0; |
Vanger | 0:b86d15c6ba29 | 1974 | } |
Vanger | 0:b86d15c6ba29 | 1975 | |
Vanger | 0:b86d15c6ba29 | 1976 | int AesCbcEncrypt(Aes* aes, byte* po, const byte* pi, word32 sz) |
Vanger | 0:b86d15c6ba29 | 1977 | { |
Vanger | 0:b86d15c6ba29 | 1978 | return (AesCbcCrypt(aes, po, pi, sz, SEC_DESC_AES_CBC_ENCRYPT)); |
Vanger | 0:b86d15c6ba29 | 1979 | } |
Vanger | 0:b86d15c6ba29 | 1980 | |
Vanger | 0:b86d15c6ba29 | 1981 | int AesCbcDecrypt(Aes* aes, byte* po, const byte* pi, word32 sz) |
Vanger | 0:b86d15c6ba29 | 1982 | { |
Vanger | 0:b86d15c6ba29 | 1983 | return (AesCbcCrypt(aes, po, pi, sz, SEC_DESC_AES_CBC_DECRYPT)); |
Vanger | 0:b86d15c6ba29 | 1984 | } |
Vanger | 0:b86d15c6ba29 | 1985 | |
Vanger | 0:b86d15c6ba29 | 1986 | #elif defined(FREESCALE_MMCAU) |
Vanger | 0:b86d15c6ba29 | 1987 | int AesCbcEncrypt(Aes* aes, byte* out, const byte* in, word32 sz) |
Vanger | 0:b86d15c6ba29 | 1988 | { |
Vanger | 0:b86d15c6ba29 | 1989 | int i; |
Vanger | 0:b86d15c6ba29 | 1990 | int offset = 0; |
Vanger | 0:b86d15c6ba29 | 1991 | int len = sz; |
Vanger | 0:b86d15c6ba29 | 1992 | |
Vanger | 0:b86d15c6ba29 | 1993 | byte *iv, *enc_key; |
Vanger | 0:b86d15c6ba29 | 1994 | byte temp_block[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 1995 | |
Vanger | 0:b86d15c6ba29 | 1996 | iv = (byte*)aes->reg; |
Vanger | 0:b86d15c6ba29 | 1997 | enc_key = (byte*)aes->key; |
Vanger | 0:b86d15c6ba29 | 1998 | |
Vanger | 0:b86d15c6ba29 | 1999 | if ((cyassl_word)out % CYASSL_MMCAU_ALIGNMENT) { |
Vanger | 0:b86d15c6ba29 | 2000 | CYASSL_MSG("Bad cau_aes_encrypt alignment"); |
Vanger | 0:b86d15c6ba29 | 2001 | return BAD_ALIGN_E; |
Vanger | 0:b86d15c6ba29 | 2002 | } |
Vanger | 0:b86d15c6ba29 | 2003 | |
Vanger | 0:b86d15c6ba29 | 2004 | while (len > 0) |
Vanger | 0:b86d15c6ba29 | 2005 | { |
Vanger | 0:b86d15c6ba29 | 2006 | XMEMCPY(temp_block, in + offset, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2007 | |
Vanger | 0:b86d15c6ba29 | 2008 | /* XOR block with IV for CBC */ |
Vanger | 0:b86d15c6ba29 | 2009 | for (i = 0; i < AES_BLOCK_SIZE; i++) |
Vanger | 0:b86d15c6ba29 | 2010 | temp_block[i] ^= iv[i]; |
Vanger | 0:b86d15c6ba29 | 2011 | |
Vanger | 0:b86d15c6ba29 | 2012 | cau_aes_encrypt(temp_block, enc_key, aes->rounds, out + offset); |
Vanger | 0:b86d15c6ba29 | 2013 | |
Vanger | 0:b86d15c6ba29 | 2014 | len -= AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2015 | offset += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2016 | |
Vanger | 0:b86d15c6ba29 | 2017 | /* store IV for next block */ |
Vanger | 0:b86d15c6ba29 | 2018 | XMEMCPY(iv, out + offset - AES_BLOCK_SIZE, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2019 | } |
Vanger | 0:b86d15c6ba29 | 2020 | |
Vanger | 0:b86d15c6ba29 | 2021 | return 0; |
Vanger | 0:b86d15c6ba29 | 2022 | } |
Vanger | 0:b86d15c6ba29 | 2023 | |
Vanger | 0:b86d15c6ba29 | 2024 | int AesCbcDecrypt(Aes* aes, byte* out, const byte* in, word32 sz) |
Vanger | 0:b86d15c6ba29 | 2025 | { |
Vanger | 0:b86d15c6ba29 | 2026 | int i; |
Vanger | 0:b86d15c6ba29 | 2027 | int offset = 0; |
Vanger | 0:b86d15c6ba29 | 2028 | int len = sz; |
Vanger | 0:b86d15c6ba29 | 2029 | |
Vanger | 0:b86d15c6ba29 | 2030 | byte* iv, *dec_key; |
Vanger | 0:b86d15c6ba29 | 2031 | byte temp_block[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 2032 | |
Vanger | 0:b86d15c6ba29 | 2033 | iv = (byte*)aes->reg; |
Vanger | 0:b86d15c6ba29 | 2034 | dec_key = (byte*)aes->key; |
Vanger | 0:b86d15c6ba29 | 2035 | |
Vanger | 0:b86d15c6ba29 | 2036 | if ((cyassl_word)out % CYASSL_MMCAU_ALIGNMENT) { |
Vanger | 0:b86d15c6ba29 | 2037 | CYASSL_MSG("Bad cau_aes_decrypt alignment"); |
Vanger | 0:b86d15c6ba29 | 2038 | return BAD_ALIGN_E; |
Vanger | 0:b86d15c6ba29 | 2039 | } |
Vanger | 0:b86d15c6ba29 | 2040 | |
Vanger | 0:b86d15c6ba29 | 2041 | while (len > 0) |
Vanger | 0:b86d15c6ba29 | 2042 | { |
Vanger | 0:b86d15c6ba29 | 2043 | XMEMCPY(temp_block, in + offset, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2044 | |
Vanger | 0:b86d15c6ba29 | 2045 | cau_aes_decrypt(in + offset, dec_key, aes->rounds, out + offset); |
Vanger | 0:b86d15c6ba29 | 2046 | |
Vanger | 0:b86d15c6ba29 | 2047 | /* XOR block with IV for CBC */ |
Vanger | 0:b86d15c6ba29 | 2048 | for (i = 0; i < AES_BLOCK_SIZE; i++) |
Vanger | 0:b86d15c6ba29 | 2049 | (out + offset)[i] ^= iv[i]; |
Vanger | 0:b86d15c6ba29 | 2050 | |
Vanger | 0:b86d15c6ba29 | 2051 | /* store IV for next block */ |
Vanger | 0:b86d15c6ba29 | 2052 | XMEMCPY(iv, temp_block, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2053 | |
Vanger | 0:b86d15c6ba29 | 2054 | len -= AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2055 | offset += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2056 | } |
Vanger | 0:b86d15c6ba29 | 2057 | |
Vanger | 0:b86d15c6ba29 | 2058 | return 0; |
Vanger | 0:b86d15c6ba29 | 2059 | } |
Vanger | 0:b86d15c6ba29 | 2060 | |
Vanger | 0:b86d15c6ba29 | 2061 | #elif defined(CYASSL_PIC32MZ_CRYPT) |
Vanger | 0:b86d15c6ba29 | 2062 | /* core hardware crypt engine driver */ |
Vanger | 0:b86d15c6ba29 | 2063 | static void AesCrypt(Aes *aes, byte* out, const byte* in, word32 sz, |
Vanger | 0:b86d15c6ba29 | 2064 | int dir, int algo, int cryptoalgo) |
Vanger | 0:b86d15c6ba29 | 2065 | { |
Vanger | 0:b86d15c6ba29 | 2066 | securityAssociation *sa_p ; |
Vanger | 0:b86d15c6ba29 | 2067 | bufferDescriptor *bd_p ; |
Vanger | 0:b86d15c6ba29 | 2068 | |
Vanger | 0:b86d15c6ba29 | 2069 | volatile securityAssociation sa __attribute__((aligned (8))); |
Vanger | 0:b86d15c6ba29 | 2070 | volatile bufferDescriptor bd __attribute__((aligned (8))); |
Vanger | 0:b86d15c6ba29 | 2071 | volatile int k ; |
Vanger | 0:b86d15c6ba29 | 2072 | |
Vanger | 0:b86d15c6ba29 | 2073 | /* get uncached address */ |
Vanger | 0:b86d15c6ba29 | 2074 | sa_p = KVA0_TO_KVA1(&sa) ; |
Vanger | 0:b86d15c6ba29 | 2075 | bd_p = KVA0_TO_KVA1(&bd) ; |
Vanger | 0:b86d15c6ba29 | 2076 | |
Vanger | 0:b86d15c6ba29 | 2077 | /* Sync cache and physical memory */ |
Vanger | 0:b86d15c6ba29 | 2078 | if(PIC32MZ_IF_RAM(in)) { |
Vanger | 0:b86d15c6ba29 | 2079 | XMEMCPY((void *)KVA0_TO_KVA1(in), (void *)in, sz); |
Vanger | 0:b86d15c6ba29 | 2080 | } |
Vanger | 0:b86d15c6ba29 | 2081 | XMEMSET((void *)KVA0_TO_KVA1(out), 0, sz); |
Vanger | 0:b86d15c6ba29 | 2082 | /* Set up the Security Association */ |
Vanger | 0:b86d15c6ba29 | 2083 | XMEMSET((byte *)KVA0_TO_KVA1(&sa), 0, sizeof(sa)); |
Vanger | 0:b86d15c6ba29 | 2084 | sa_p->SA_CTRL.ALGO = algo ; /* AES */ |
Vanger | 0:b86d15c6ba29 | 2085 | sa_p->SA_CTRL.LNC = 1; |
Vanger | 0:b86d15c6ba29 | 2086 | sa_p->SA_CTRL.LOADIV = 1; |
Vanger | 0:b86d15c6ba29 | 2087 | sa_p->SA_CTRL.FB = 1; |
Vanger | 0:b86d15c6ba29 | 2088 | sa_p->SA_CTRL.ENCTYPE = dir ; /* Encryption/Decryption */ |
Vanger | 0:b86d15c6ba29 | 2089 | sa_p->SA_CTRL.CRYPTOALGO = cryptoalgo; |
Vanger | 0:b86d15c6ba29 | 2090 | |
Vanger | 0:b86d15c6ba29 | 2091 | if(cryptoalgo == PIC32_CRYPTOALGO_AES_GCM){ |
Vanger | 0:b86d15c6ba29 | 2092 | switch(aes->keylen) { |
Vanger | 0:b86d15c6ba29 | 2093 | case 32: |
Vanger | 0:b86d15c6ba29 | 2094 | sa_p->SA_CTRL.KEYSIZE = PIC32_AES_KEYSIZE_256 ; |
Vanger | 0:b86d15c6ba29 | 2095 | break ; |
Vanger | 0:b86d15c6ba29 | 2096 | case 24: |
Vanger | 0:b86d15c6ba29 | 2097 | sa_p->SA_CTRL.KEYSIZE = PIC32_AES_KEYSIZE_192 ; |
Vanger | 0:b86d15c6ba29 | 2098 | break ; |
Vanger | 0:b86d15c6ba29 | 2099 | case 16: |
Vanger | 0:b86d15c6ba29 | 2100 | sa_p->SA_CTRL.KEYSIZE = PIC32_AES_KEYSIZE_128 ; |
Vanger | 0:b86d15c6ba29 | 2101 | break ; |
Vanger | 0:b86d15c6ba29 | 2102 | } |
Vanger | 0:b86d15c6ba29 | 2103 | } else |
Vanger | 0:b86d15c6ba29 | 2104 | sa_p->SA_CTRL.KEYSIZE = PIC32_AES_KEYSIZE_128 ; |
Vanger | 0:b86d15c6ba29 | 2105 | |
Vanger | 0:b86d15c6ba29 | 2106 | ByteReverseWords( |
Vanger | 0:b86d15c6ba29 | 2107 | (word32 *)KVA0_TO_KVA1(sa.SA_ENCKEY + 8 - aes->keylen/sizeof(word32)), |
Vanger | 0:b86d15c6ba29 | 2108 | (word32 *)aes->key_ce, aes->keylen); |
Vanger | 0:b86d15c6ba29 | 2109 | ByteReverseWords( |
Vanger | 0:b86d15c6ba29 | 2110 | (word32*)KVA0_TO_KVA1(sa.SA_ENCIV), (word32 *)aes->iv_ce, 16); |
Vanger | 0:b86d15c6ba29 | 2111 | |
Vanger | 0:b86d15c6ba29 | 2112 | XMEMSET((byte *)KVA0_TO_KVA1(&bd), 0, sizeof(bd)); |
Vanger | 0:b86d15c6ba29 | 2113 | /* Set up the Buffer Descriptor */ |
Vanger | 0:b86d15c6ba29 | 2114 | bd_p->BD_CTRL.BUFLEN = sz; |
Vanger | 0:b86d15c6ba29 | 2115 | if(cryptoalgo == PIC32_CRYPTOALGO_AES_GCM) { |
Vanger | 0:b86d15c6ba29 | 2116 | if(sz % 0x10) |
Vanger | 0:b86d15c6ba29 | 2117 | bd_p->BD_CTRL.BUFLEN = (sz/0x10 + 1) * 0x10 ; |
Vanger | 0:b86d15c6ba29 | 2118 | } |
Vanger | 0:b86d15c6ba29 | 2119 | bd_p->BD_CTRL.LIFM = 1; |
Vanger | 0:b86d15c6ba29 | 2120 | bd_p->BD_CTRL.SA_FETCH_EN = 1; |
Vanger | 0:b86d15c6ba29 | 2121 | bd_p->BD_CTRL.LAST_BD = 1; |
Vanger | 0:b86d15c6ba29 | 2122 | bd_p->BD_CTRL.DESC_EN = 1; |
Vanger | 0:b86d15c6ba29 | 2123 | |
Vanger | 0:b86d15c6ba29 | 2124 | bd_p->SA_ADDR = (unsigned int)KVA_TO_PA(&sa) ; |
Vanger | 0:b86d15c6ba29 | 2125 | bd_p->SRCADDR = (unsigned int)KVA_TO_PA(in) ; |
Vanger | 0:b86d15c6ba29 | 2126 | bd_p->DSTADDR = (unsigned int)KVA_TO_PA(out); |
Vanger | 0:b86d15c6ba29 | 2127 | bd_p->MSGLEN = sz ; |
Vanger | 0:b86d15c6ba29 | 2128 | |
Vanger | 0:b86d15c6ba29 | 2129 | CECON = 1 << 6; |
Vanger | 0:b86d15c6ba29 | 2130 | while (CECON); |
Vanger | 0:b86d15c6ba29 | 2131 | |
Vanger | 0:b86d15c6ba29 | 2132 | /* Run the engine */ |
Vanger | 0:b86d15c6ba29 | 2133 | CEBDPADDR = (unsigned int)KVA_TO_PA(&bd) ; |
Vanger | 0:b86d15c6ba29 | 2134 | CEINTEN = 0x07; |
Vanger | 0:b86d15c6ba29 | 2135 | CECON = 0x27; |
Vanger | 0:b86d15c6ba29 | 2136 | |
Vanger | 0:b86d15c6ba29 | 2137 | WAIT_ENGINE ; |
Vanger | 0:b86d15c6ba29 | 2138 | |
Vanger | 0:b86d15c6ba29 | 2139 | if((cryptoalgo == PIC32_CRYPTOALGO_CBC) || |
Vanger | 0:b86d15c6ba29 | 2140 | (cryptoalgo == PIC32_CRYPTOALGO_TCBC)|| |
Vanger | 0:b86d15c6ba29 | 2141 | (cryptoalgo == PIC32_CRYPTOALGO_RCBC)) { |
Vanger | 0:b86d15c6ba29 | 2142 | /* set iv for the next call */ |
Vanger | 0:b86d15c6ba29 | 2143 | if(dir == PIC32_ENCRYPTION) { |
Vanger | 0:b86d15c6ba29 | 2144 | XMEMCPY((void *)aes->iv_ce, |
Vanger | 0:b86d15c6ba29 | 2145 | (void*)KVA0_TO_KVA1(out + sz - AES_BLOCK_SIZE), |
Vanger | 0:b86d15c6ba29 | 2146 | AES_BLOCK_SIZE) ; |
Vanger | 0:b86d15c6ba29 | 2147 | } else { |
Vanger | 0:b86d15c6ba29 | 2148 | ByteReverseWords((word32*)aes->iv_ce, |
Vanger | 0:b86d15c6ba29 | 2149 | (word32 *)KVA0_TO_KVA1(in + sz - AES_BLOCK_SIZE), |
Vanger | 0:b86d15c6ba29 | 2150 | AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2151 | } |
Vanger | 0:b86d15c6ba29 | 2152 | } |
Vanger | 0:b86d15c6ba29 | 2153 | XMEMCPY((byte *)out, (byte *)KVA0_TO_KVA1(out), sz) ; |
Vanger | 0:b86d15c6ba29 | 2154 | ByteReverseWords((word32*)out, (word32 *)out, sz); |
Vanger | 0:b86d15c6ba29 | 2155 | } |
Vanger | 0:b86d15c6ba29 | 2156 | |
Vanger | 0:b86d15c6ba29 | 2157 | int AesCbcEncrypt(Aes* aes, byte* out, const byte* in, word32 sz) |
Vanger | 0:b86d15c6ba29 | 2158 | { |
Vanger | 0:b86d15c6ba29 | 2159 | AesCrypt(aes, out, in, sz, PIC32_ENCRYPTION, PIC32_ALGO_AES, |
Vanger | 0:b86d15c6ba29 | 2160 | PIC32_CRYPTOALGO_RCBC ); |
Vanger | 0:b86d15c6ba29 | 2161 | return 0 ; |
Vanger | 0:b86d15c6ba29 | 2162 | } |
Vanger | 0:b86d15c6ba29 | 2163 | |
Vanger | 0:b86d15c6ba29 | 2164 | int AesCbcDecrypt(Aes* aes, byte* out, const byte* in, word32 sz) |
Vanger | 0:b86d15c6ba29 | 2165 | { |
Vanger | 0:b86d15c6ba29 | 2166 | AesCrypt(aes, out, in, sz, PIC32_DECRYPTION, PIC32_ALGO_AES, |
Vanger | 0:b86d15c6ba29 | 2167 | PIC32_CRYPTOALGO_RCBC); |
Vanger | 0:b86d15c6ba29 | 2168 | return 0 ; |
Vanger | 0:b86d15c6ba29 | 2169 | } |
Vanger | 0:b86d15c6ba29 | 2170 | |
Vanger | 0:b86d15c6ba29 | 2171 | #else |
Vanger | 0:b86d15c6ba29 | 2172 | int AesCbcEncrypt(Aes* aes, byte* out, const byte* in, word32 sz) |
Vanger | 0:b86d15c6ba29 | 2173 | { |
Vanger | 0:b86d15c6ba29 | 2174 | word32 blocks = sz / AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2175 | |
Vanger | 0:b86d15c6ba29 | 2176 | #ifdef HAVE_CAVIUM |
Vanger | 0:b86d15c6ba29 | 2177 | if (aes->magic == CYASSL_AES_CAVIUM_MAGIC) |
Vanger | 0:b86d15c6ba29 | 2178 | return AesCaviumCbcEncrypt(aes, out, in, sz); |
Vanger | 0:b86d15c6ba29 | 2179 | #endif |
Vanger | 0:b86d15c6ba29 | 2180 | |
Vanger | 0:b86d15c6ba29 | 2181 | #ifdef CYASSL_AESNI |
Vanger | 0:b86d15c6ba29 | 2182 | if (haveAESNI) { |
Vanger | 0:b86d15c6ba29 | 2183 | #ifdef DEBUG_AESNI |
Vanger | 0:b86d15c6ba29 | 2184 | printf("about to aes cbc encrypt\n"); |
Vanger | 0:b86d15c6ba29 | 2185 | printf("in = %p\n", in); |
Vanger | 0:b86d15c6ba29 | 2186 | printf("out = %p\n", out); |
Vanger | 0:b86d15c6ba29 | 2187 | printf("aes->key = %p\n", aes->key); |
Vanger | 0:b86d15c6ba29 | 2188 | printf("aes->reg = %p\n", aes->reg); |
Vanger | 0:b86d15c6ba29 | 2189 | printf("aes->rounds = %d\n", aes->rounds); |
Vanger | 0:b86d15c6ba29 | 2190 | printf("sz = %d\n", sz); |
Vanger | 0:b86d15c6ba29 | 2191 | #endif |
Vanger | 0:b86d15c6ba29 | 2192 | |
Vanger | 0:b86d15c6ba29 | 2193 | /* check alignment, decrypt doesn't need alignment */ |
Vanger | 0:b86d15c6ba29 | 2194 | if ((cyassl_word)in % 16) { |
Vanger | 0:b86d15c6ba29 | 2195 | #ifndef NO_CYASSL_ALLOC_ALIGN |
Vanger | 0:b86d15c6ba29 | 2196 | byte* tmp = (byte*)XMALLOC(sz, NULL, DYNAMIC_TYPE_TMP_BUFFER); |
Vanger | 0:b86d15c6ba29 | 2197 | CYASSL_MSG("AES-CBC encrypt with bad alignment"); |
Vanger | 0:b86d15c6ba29 | 2198 | if (tmp == NULL) return MEMORY_E; |
Vanger | 0:b86d15c6ba29 | 2199 | |
Vanger | 0:b86d15c6ba29 | 2200 | XMEMCPY(tmp, in, sz); |
Vanger | 0:b86d15c6ba29 | 2201 | AES_CBC_encrypt(tmp, tmp, (byte*)aes->reg, sz, (byte*)aes->key, |
Vanger | 0:b86d15c6ba29 | 2202 | aes->rounds); |
Vanger | 0:b86d15c6ba29 | 2203 | /* store iv for next call */ |
Vanger | 0:b86d15c6ba29 | 2204 | XMEMCPY(aes->reg, tmp + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2205 | |
Vanger | 0:b86d15c6ba29 | 2206 | XMEMCPY(out, tmp, sz); |
Vanger | 0:b86d15c6ba29 | 2207 | XFREE(tmp, NULL, DYNAMIC_TYPE_TMP_BUFFER); |
Vanger | 0:b86d15c6ba29 | 2208 | return 0; |
Vanger | 0:b86d15c6ba29 | 2209 | #else |
Vanger | 0:b86d15c6ba29 | 2210 | return BAD_ALIGN_E; |
Vanger | 0:b86d15c6ba29 | 2211 | #endif |
Vanger | 0:b86d15c6ba29 | 2212 | } |
Vanger | 0:b86d15c6ba29 | 2213 | |
Vanger | 0:b86d15c6ba29 | 2214 | AES_CBC_encrypt(in, out, (byte*)aes->reg, sz, (byte*)aes->key, |
Vanger | 0:b86d15c6ba29 | 2215 | aes->rounds); |
Vanger | 0:b86d15c6ba29 | 2216 | /* store iv for next call */ |
Vanger | 0:b86d15c6ba29 | 2217 | XMEMCPY(aes->reg, out + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2218 | |
Vanger | 0:b86d15c6ba29 | 2219 | return 0; |
Vanger | 0:b86d15c6ba29 | 2220 | } |
Vanger | 0:b86d15c6ba29 | 2221 | #endif |
Vanger | 0:b86d15c6ba29 | 2222 | |
Vanger | 0:b86d15c6ba29 | 2223 | while (blocks--) { |
Vanger | 0:b86d15c6ba29 | 2224 | xorbuf((byte*)aes->reg, in, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2225 | AesEncrypt(aes, (byte*)aes->reg, (byte*)aes->reg); |
Vanger | 0:b86d15c6ba29 | 2226 | XMEMCPY(out, aes->reg, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2227 | |
Vanger | 0:b86d15c6ba29 | 2228 | out += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2229 | in += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2230 | } |
Vanger | 0:b86d15c6ba29 | 2231 | |
Vanger | 0:b86d15c6ba29 | 2232 | return 0; |
Vanger | 0:b86d15c6ba29 | 2233 | } |
Vanger | 0:b86d15c6ba29 | 2234 | |
Vanger | 0:b86d15c6ba29 | 2235 | int AesCbcDecrypt(Aes* aes, byte* out, const byte* in, word32 sz) |
Vanger | 0:b86d15c6ba29 | 2236 | { |
Vanger | 0:b86d15c6ba29 | 2237 | word32 blocks = sz / AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2238 | |
Vanger | 0:b86d15c6ba29 | 2239 | #ifdef HAVE_CAVIUM |
Vanger | 0:b86d15c6ba29 | 2240 | if (aes->magic == CYASSL_AES_CAVIUM_MAGIC) |
Vanger | 0:b86d15c6ba29 | 2241 | return AesCaviumCbcDecrypt(aes, out, in, sz); |
Vanger | 0:b86d15c6ba29 | 2242 | #endif |
Vanger | 0:b86d15c6ba29 | 2243 | |
Vanger | 0:b86d15c6ba29 | 2244 | #ifdef CYASSL_AESNI |
Vanger | 0:b86d15c6ba29 | 2245 | if (haveAESNI) { |
Vanger | 0:b86d15c6ba29 | 2246 | #ifdef DEBUG_AESNI |
Vanger | 0:b86d15c6ba29 | 2247 | printf("about to aes cbc decrypt\n"); |
Vanger | 0:b86d15c6ba29 | 2248 | printf("in = %p\n", in); |
Vanger | 0:b86d15c6ba29 | 2249 | printf("out = %p\n", out); |
Vanger | 0:b86d15c6ba29 | 2250 | printf("aes->key = %p\n", aes->key); |
Vanger | 0:b86d15c6ba29 | 2251 | printf("aes->reg = %p\n", aes->reg); |
Vanger | 0:b86d15c6ba29 | 2252 | printf("aes->rounds = %d\n", aes->rounds); |
Vanger | 0:b86d15c6ba29 | 2253 | printf("sz = %d\n", sz); |
Vanger | 0:b86d15c6ba29 | 2254 | #endif |
Vanger | 0:b86d15c6ba29 | 2255 | |
Vanger | 0:b86d15c6ba29 | 2256 | /* if input and output same will overwrite input iv */ |
Vanger | 0:b86d15c6ba29 | 2257 | XMEMCPY(aes->tmp, in + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2258 | AES_CBC_decrypt(in, out, (byte*)aes->reg, sz, (byte*)aes->key, |
Vanger | 0:b86d15c6ba29 | 2259 | aes->rounds); |
Vanger | 0:b86d15c6ba29 | 2260 | /* store iv for next call */ |
Vanger | 0:b86d15c6ba29 | 2261 | XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2262 | return 0; |
Vanger | 0:b86d15c6ba29 | 2263 | } |
Vanger | 0:b86d15c6ba29 | 2264 | #endif |
Vanger | 0:b86d15c6ba29 | 2265 | |
Vanger | 0:b86d15c6ba29 | 2266 | while (blocks--) { |
Vanger | 0:b86d15c6ba29 | 2267 | XMEMCPY(aes->tmp, in, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2268 | AesDecrypt(aes, (byte*)aes->tmp, out); |
Vanger | 0:b86d15c6ba29 | 2269 | xorbuf(out, (byte*)aes->reg, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2270 | XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2271 | |
Vanger | 0:b86d15c6ba29 | 2272 | out += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2273 | in += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2274 | } |
Vanger | 0:b86d15c6ba29 | 2275 | |
Vanger | 0:b86d15c6ba29 | 2276 | return 0; |
Vanger | 0:b86d15c6ba29 | 2277 | } |
Vanger | 0:b86d15c6ba29 | 2278 | |
Vanger | 0:b86d15c6ba29 | 2279 | #endif /* STM32F2_CRYPTO, AES-CBC block */ |
Vanger | 0:b86d15c6ba29 | 2280 | |
Vanger | 0:b86d15c6ba29 | 2281 | /* AES-CTR */ |
Vanger | 0:b86d15c6ba29 | 2282 | #ifdef CYASSL_AES_COUNTER |
Vanger | 0:b86d15c6ba29 | 2283 | |
Vanger | 0:b86d15c6ba29 | 2284 | #ifdef STM32F2_CRYPTO |
Vanger | 0:b86d15c6ba29 | 2285 | void AesCtrEncrypt(Aes* aes, byte* out, const byte* in, word32 sz) |
Vanger | 0:b86d15c6ba29 | 2286 | { |
Vanger | 0:b86d15c6ba29 | 2287 | word32 *enc_key, *iv; |
Vanger | 0:b86d15c6ba29 | 2288 | CRYP_InitTypeDef AES_CRYP_InitStructure; |
Vanger | 0:b86d15c6ba29 | 2289 | CRYP_KeyInitTypeDef AES_CRYP_KeyInitStructure; |
Vanger | 0:b86d15c6ba29 | 2290 | CRYP_IVInitTypeDef AES_CRYP_IVInitStructure; |
Vanger | 0:b86d15c6ba29 | 2291 | |
Vanger | 0:b86d15c6ba29 | 2292 | enc_key = aes->key; |
Vanger | 0:b86d15c6ba29 | 2293 | iv = aes->reg; |
Vanger | 0:b86d15c6ba29 | 2294 | |
Vanger | 0:b86d15c6ba29 | 2295 | /* crypto structure initialization */ |
Vanger | 0:b86d15c6ba29 | 2296 | CRYP_KeyStructInit(&AES_CRYP_KeyInitStructure); |
Vanger | 0:b86d15c6ba29 | 2297 | CRYP_StructInit(&AES_CRYP_InitStructure); |
Vanger | 0:b86d15c6ba29 | 2298 | CRYP_IVStructInit(&AES_CRYP_IVInitStructure); |
Vanger | 0:b86d15c6ba29 | 2299 | |
Vanger | 0:b86d15c6ba29 | 2300 | /* reset registers to their default values */ |
Vanger | 0:b86d15c6ba29 | 2301 | CRYP_DeInit(); |
Vanger | 0:b86d15c6ba29 | 2302 | |
Vanger | 0:b86d15c6ba29 | 2303 | /* load key into correct registers */ |
Vanger | 0:b86d15c6ba29 | 2304 | switch(aes->rounds) |
Vanger | 0:b86d15c6ba29 | 2305 | { |
Vanger | 0:b86d15c6ba29 | 2306 | case 10: /* 128-bit key */ |
Vanger | 0:b86d15c6ba29 | 2307 | AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_128b; |
Vanger | 0:b86d15c6ba29 | 2308 | AES_CRYP_KeyInitStructure.CRYP_Key2Left = enc_key[0]; |
Vanger | 0:b86d15c6ba29 | 2309 | AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[1]; |
Vanger | 0:b86d15c6ba29 | 2310 | AES_CRYP_KeyInitStructure.CRYP_Key3Left = enc_key[2]; |
Vanger | 0:b86d15c6ba29 | 2311 | AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[3]; |
Vanger | 0:b86d15c6ba29 | 2312 | break; |
Vanger | 0:b86d15c6ba29 | 2313 | |
Vanger | 0:b86d15c6ba29 | 2314 | case 12: /* 192-bit key */ |
Vanger | 0:b86d15c6ba29 | 2315 | AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_192b; |
Vanger | 0:b86d15c6ba29 | 2316 | AES_CRYP_KeyInitStructure.CRYP_Key1Left = enc_key[0]; |
Vanger | 0:b86d15c6ba29 | 2317 | AES_CRYP_KeyInitStructure.CRYP_Key1Right = enc_key[1]; |
Vanger | 0:b86d15c6ba29 | 2318 | AES_CRYP_KeyInitStructure.CRYP_Key2Left = enc_key[2]; |
Vanger | 0:b86d15c6ba29 | 2319 | AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[3]; |
Vanger | 0:b86d15c6ba29 | 2320 | AES_CRYP_KeyInitStructure.CRYP_Key3Left = enc_key[4]; |
Vanger | 0:b86d15c6ba29 | 2321 | AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[5]; |
Vanger | 0:b86d15c6ba29 | 2322 | break; |
Vanger | 0:b86d15c6ba29 | 2323 | |
Vanger | 0:b86d15c6ba29 | 2324 | case 14: /* 256-bit key */ |
Vanger | 0:b86d15c6ba29 | 2325 | AES_CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_256b; |
Vanger | 0:b86d15c6ba29 | 2326 | AES_CRYP_KeyInitStructure.CRYP_Key0Left = enc_key[0]; |
Vanger | 0:b86d15c6ba29 | 2327 | AES_CRYP_KeyInitStructure.CRYP_Key0Right = enc_key[1]; |
Vanger | 0:b86d15c6ba29 | 2328 | AES_CRYP_KeyInitStructure.CRYP_Key1Left = enc_key[2]; |
Vanger | 0:b86d15c6ba29 | 2329 | AES_CRYP_KeyInitStructure.CRYP_Key1Right = enc_key[3]; |
Vanger | 0:b86d15c6ba29 | 2330 | AES_CRYP_KeyInitStructure.CRYP_Key2Left = enc_key[4]; |
Vanger | 0:b86d15c6ba29 | 2331 | AES_CRYP_KeyInitStructure.CRYP_Key2Right = enc_key[5]; |
Vanger | 0:b86d15c6ba29 | 2332 | AES_CRYP_KeyInitStructure.CRYP_Key3Left = enc_key[6]; |
Vanger | 0:b86d15c6ba29 | 2333 | AES_CRYP_KeyInitStructure.CRYP_Key3Right = enc_key[7]; |
Vanger | 0:b86d15c6ba29 | 2334 | break; |
Vanger | 0:b86d15c6ba29 | 2335 | |
Vanger | 0:b86d15c6ba29 | 2336 | default: |
Vanger | 0:b86d15c6ba29 | 2337 | break; |
Vanger | 0:b86d15c6ba29 | 2338 | } |
Vanger | 0:b86d15c6ba29 | 2339 | CRYP_KeyInit(&AES_CRYP_KeyInitStructure); |
Vanger | 0:b86d15c6ba29 | 2340 | |
Vanger | 0:b86d15c6ba29 | 2341 | /* set iv */ |
Vanger | 0:b86d15c6ba29 | 2342 | ByteReverseWords(iv, iv, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2343 | AES_CRYP_IVInitStructure.CRYP_IV0Left = iv[0]; |
Vanger | 0:b86d15c6ba29 | 2344 | AES_CRYP_IVInitStructure.CRYP_IV0Right = iv[1]; |
Vanger | 0:b86d15c6ba29 | 2345 | AES_CRYP_IVInitStructure.CRYP_IV1Left = iv[2]; |
Vanger | 0:b86d15c6ba29 | 2346 | AES_CRYP_IVInitStructure.CRYP_IV1Right = iv[3]; |
Vanger | 0:b86d15c6ba29 | 2347 | CRYP_IVInit(&AES_CRYP_IVInitStructure); |
Vanger | 0:b86d15c6ba29 | 2348 | |
Vanger | 0:b86d15c6ba29 | 2349 | /* set direction, mode, and datatype */ |
Vanger | 0:b86d15c6ba29 | 2350 | AES_CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Encrypt; |
Vanger | 0:b86d15c6ba29 | 2351 | AES_CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_AES_CTR; |
Vanger | 0:b86d15c6ba29 | 2352 | AES_CRYP_InitStructure.CRYP_DataType = CRYP_DataType_8b; |
Vanger | 0:b86d15c6ba29 | 2353 | CRYP_Init(&AES_CRYP_InitStructure); |
Vanger | 0:b86d15c6ba29 | 2354 | |
Vanger | 0:b86d15c6ba29 | 2355 | /* enable crypto processor */ |
Vanger | 0:b86d15c6ba29 | 2356 | CRYP_Cmd(ENABLE); |
Vanger | 0:b86d15c6ba29 | 2357 | |
Vanger | 0:b86d15c6ba29 | 2358 | while (sz > 0) |
Vanger | 0:b86d15c6ba29 | 2359 | { |
Vanger | 0:b86d15c6ba29 | 2360 | /* flush IN/OUT FIFOs */ |
Vanger | 0:b86d15c6ba29 | 2361 | CRYP_FIFOFlush(); |
Vanger | 0:b86d15c6ba29 | 2362 | |
Vanger | 0:b86d15c6ba29 | 2363 | CRYP_DataIn(*(uint32_t*)&in[0]); |
Vanger | 0:b86d15c6ba29 | 2364 | CRYP_DataIn(*(uint32_t*)&in[4]); |
Vanger | 0:b86d15c6ba29 | 2365 | CRYP_DataIn(*(uint32_t*)&in[8]); |
Vanger | 0:b86d15c6ba29 | 2366 | CRYP_DataIn(*(uint32_t*)&in[12]); |
Vanger | 0:b86d15c6ba29 | 2367 | |
Vanger | 0:b86d15c6ba29 | 2368 | /* wait until the complete message has been processed */ |
Vanger | 0:b86d15c6ba29 | 2369 | while(CRYP_GetFlagStatus(CRYP_FLAG_BUSY) != RESET) {} |
Vanger | 0:b86d15c6ba29 | 2370 | |
Vanger | 0:b86d15c6ba29 | 2371 | *(uint32_t*)&out[0] = CRYP_DataOut(); |
Vanger | 0:b86d15c6ba29 | 2372 | *(uint32_t*)&out[4] = CRYP_DataOut(); |
Vanger | 0:b86d15c6ba29 | 2373 | *(uint32_t*)&out[8] = CRYP_DataOut(); |
Vanger | 0:b86d15c6ba29 | 2374 | *(uint32_t*)&out[12] = CRYP_DataOut(); |
Vanger | 0:b86d15c6ba29 | 2375 | |
Vanger | 0:b86d15c6ba29 | 2376 | /* store iv for next call */ |
Vanger | 0:b86d15c6ba29 | 2377 | XMEMCPY(aes->reg, out + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2378 | |
Vanger | 0:b86d15c6ba29 | 2379 | sz -= 16; |
Vanger | 0:b86d15c6ba29 | 2380 | in += 16; |
Vanger | 0:b86d15c6ba29 | 2381 | out += 16; |
Vanger | 0:b86d15c6ba29 | 2382 | } |
Vanger | 0:b86d15c6ba29 | 2383 | |
Vanger | 0:b86d15c6ba29 | 2384 | /* disable crypto processor */ |
Vanger | 0:b86d15c6ba29 | 2385 | CRYP_Cmd(DISABLE); |
Vanger | 0:b86d15c6ba29 | 2386 | } |
Vanger | 0:b86d15c6ba29 | 2387 | |
Vanger | 0:b86d15c6ba29 | 2388 | #elif defined(CYASSL_PIC32MZ_CRYPT) |
Vanger | 0:b86d15c6ba29 | 2389 | void AesCtrEncrypt(Aes* aes, byte* out, const byte* in, word32 sz) |
Vanger | 0:b86d15c6ba29 | 2390 | { |
Vanger | 0:b86d15c6ba29 | 2391 | int i ; |
Vanger | 0:b86d15c6ba29 | 2392 | char out_block[AES_BLOCK_SIZE] ; |
Vanger | 0:b86d15c6ba29 | 2393 | int odd ; |
Vanger | 0:b86d15c6ba29 | 2394 | int even ; |
Vanger | 0:b86d15c6ba29 | 2395 | char *tmp ; /* (char *)aes->tmp, for short */ |
Vanger | 0:b86d15c6ba29 | 2396 | |
Vanger | 0:b86d15c6ba29 | 2397 | tmp = (char *)aes->tmp ; |
Vanger | 0:b86d15c6ba29 | 2398 | if(aes->left) { |
Vanger | 0:b86d15c6ba29 | 2399 | if((aes->left + sz) >= AES_BLOCK_SIZE){ |
Vanger | 0:b86d15c6ba29 | 2400 | odd = AES_BLOCK_SIZE - aes->left ; |
Vanger | 0:b86d15c6ba29 | 2401 | } else { |
Vanger | 0:b86d15c6ba29 | 2402 | odd = sz ; |
Vanger | 0:b86d15c6ba29 | 2403 | } |
Vanger | 0:b86d15c6ba29 | 2404 | XMEMCPY(tmp+aes->left, in, odd) ; |
Vanger | 0:b86d15c6ba29 | 2405 | if((odd+aes->left) == AES_BLOCK_SIZE){ |
Vanger | 0:b86d15c6ba29 | 2406 | AesCrypt(aes, out_block, tmp, AES_BLOCK_SIZE, |
Vanger | 0:b86d15c6ba29 | 2407 | PIC32_ENCRYPTION, PIC32_ALGO_AES, PIC32_CRYPTOALGO_RCTR); |
Vanger | 0:b86d15c6ba29 | 2408 | XMEMCPY(out, out_block+aes->left, odd) ; |
Vanger | 0:b86d15c6ba29 | 2409 | aes->left = 0 ; |
Vanger | 0:b86d15c6ba29 | 2410 | XMEMSET(tmp, 0x0, AES_BLOCK_SIZE) ; |
Vanger | 0:b86d15c6ba29 | 2411 | /* Increment IV */ |
Vanger | 0:b86d15c6ba29 | 2412 | for (i = AES_BLOCK_SIZE - 1; i >= 0; i--) { |
Vanger | 0:b86d15c6ba29 | 2413 | if (++((byte *)aes->iv_ce)[i]) |
Vanger | 0:b86d15c6ba29 | 2414 | break ; |
Vanger | 0:b86d15c6ba29 | 2415 | } |
Vanger | 0:b86d15c6ba29 | 2416 | } |
Vanger | 0:b86d15c6ba29 | 2417 | in += odd ; |
Vanger | 0:b86d15c6ba29 | 2418 | out+= odd ; |
Vanger | 0:b86d15c6ba29 | 2419 | sz -= odd ; |
Vanger | 0:b86d15c6ba29 | 2420 | } |
Vanger | 0:b86d15c6ba29 | 2421 | odd = sz % AES_BLOCK_SIZE ; /* if there is tail flagment */ |
Vanger | 0:b86d15c6ba29 | 2422 | if(sz / AES_BLOCK_SIZE) { |
Vanger | 0:b86d15c6ba29 | 2423 | even = (sz/AES_BLOCK_SIZE)*AES_BLOCK_SIZE ; |
Vanger | 0:b86d15c6ba29 | 2424 | AesCrypt(aes, out, in, even, PIC32_ENCRYPTION, PIC32_ALGO_AES, |
Vanger | 0:b86d15c6ba29 | 2425 | PIC32_CRYPTOALGO_RCTR); |
Vanger | 0:b86d15c6ba29 | 2426 | out += even ; |
Vanger | 0:b86d15c6ba29 | 2427 | in += even ; |
Vanger | 0:b86d15c6ba29 | 2428 | do { /* Increment IV */ |
Vanger | 0:b86d15c6ba29 | 2429 | for (i = AES_BLOCK_SIZE - 1; i >= 0; i--) { |
Vanger | 0:b86d15c6ba29 | 2430 | if (++((byte *)aes->iv_ce)[i]) |
Vanger | 0:b86d15c6ba29 | 2431 | break ; |
Vanger | 0:b86d15c6ba29 | 2432 | } |
Vanger | 0:b86d15c6ba29 | 2433 | even -= AES_BLOCK_SIZE ; |
Vanger | 0:b86d15c6ba29 | 2434 | } while((int)even > 0) ; |
Vanger | 0:b86d15c6ba29 | 2435 | } |
Vanger | 0:b86d15c6ba29 | 2436 | if(odd) { |
Vanger | 0:b86d15c6ba29 | 2437 | XMEMSET(tmp+aes->left, 0x0, AES_BLOCK_SIZE - aes->left) ; |
Vanger | 0:b86d15c6ba29 | 2438 | XMEMCPY(tmp+aes->left, in, odd) ; |
Vanger | 0:b86d15c6ba29 | 2439 | AesCrypt(aes, out_block, tmp, AES_BLOCK_SIZE, |
Vanger | 0:b86d15c6ba29 | 2440 | PIC32_ENCRYPTION, PIC32_ALGO_AES, PIC32_CRYPTOALGO_RCTR); |
Vanger | 0:b86d15c6ba29 | 2441 | XMEMCPY(out, out_block+aes->left,odd) ; |
Vanger | 0:b86d15c6ba29 | 2442 | aes->left += odd ; |
Vanger | 0:b86d15c6ba29 | 2443 | } |
Vanger | 0:b86d15c6ba29 | 2444 | } |
Vanger | 0:b86d15c6ba29 | 2445 | |
Vanger | 0:b86d15c6ba29 | 2446 | #elif defined(HAVE_COLDFIRE_SEC) |
Vanger | 0:b86d15c6ba29 | 2447 | #error "Coldfire SEC doesn't currently support AES-CTR mode" |
Vanger | 0:b86d15c6ba29 | 2448 | |
Vanger | 0:b86d15c6ba29 | 2449 | #elif defined(FREESCALE_MMCAU) |
Vanger | 0:b86d15c6ba29 | 2450 | #error "Freescale mmCAU doesn't currently support AES-CTR mode" |
Vanger | 0:b86d15c6ba29 | 2451 | |
Vanger | 0:b86d15c6ba29 | 2452 | #else |
Vanger | 0:b86d15c6ba29 | 2453 | /* Increment AES counter */ |
Vanger | 0:b86d15c6ba29 | 2454 | static INLINE void IncrementAesCounter(byte* inOutCtr) |
Vanger | 0:b86d15c6ba29 | 2455 | { |
Vanger | 0:b86d15c6ba29 | 2456 | int i; |
Vanger | 0:b86d15c6ba29 | 2457 | |
Vanger | 0:b86d15c6ba29 | 2458 | /* in network byte order so start at end and work back */ |
Vanger | 0:b86d15c6ba29 | 2459 | for (i = AES_BLOCK_SIZE - 1; i >= 0; i--) { |
Vanger | 0:b86d15c6ba29 | 2460 | if (++inOutCtr[i]) /* we're done unless we overflow */ |
Vanger | 0:b86d15c6ba29 | 2461 | return; |
Vanger | 0:b86d15c6ba29 | 2462 | } |
Vanger | 0:b86d15c6ba29 | 2463 | } |
Vanger | 0:b86d15c6ba29 | 2464 | |
Vanger | 0:b86d15c6ba29 | 2465 | void AesCtrEncrypt(Aes* aes, byte* out, const byte* in, word32 sz) |
Vanger | 0:b86d15c6ba29 | 2466 | { |
Vanger | 0:b86d15c6ba29 | 2467 | byte* tmp = (byte*)aes->tmp + AES_BLOCK_SIZE - aes->left; |
Vanger | 0:b86d15c6ba29 | 2468 | |
Vanger | 0:b86d15c6ba29 | 2469 | /* consume any unused bytes left in aes->tmp */ |
Vanger | 0:b86d15c6ba29 | 2470 | while (aes->left && sz) { |
Vanger | 0:b86d15c6ba29 | 2471 | *(out++) = *(in++) ^ *(tmp++); |
Vanger | 0:b86d15c6ba29 | 2472 | aes->left--; |
Vanger | 0:b86d15c6ba29 | 2473 | sz--; |
Vanger | 0:b86d15c6ba29 | 2474 | } |
Vanger | 0:b86d15c6ba29 | 2475 | |
Vanger | 0:b86d15c6ba29 | 2476 | /* do as many block size ops as possible */ |
Vanger | 0:b86d15c6ba29 | 2477 | while (sz >= AES_BLOCK_SIZE) { |
Vanger | 0:b86d15c6ba29 | 2478 | AesEncrypt(aes, (byte*)aes->reg, out); |
Vanger | 0:b86d15c6ba29 | 2479 | IncrementAesCounter((byte*)aes->reg); |
Vanger | 0:b86d15c6ba29 | 2480 | xorbuf(out, in, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2481 | |
Vanger | 0:b86d15c6ba29 | 2482 | out += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2483 | in += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2484 | sz -= AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2485 | aes->left = 0; |
Vanger | 0:b86d15c6ba29 | 2486 | } |
Vanger | 0:b86d15c6ba29 | 2487 | |
Vanger | 0:b86d15c6ba29 | 2488 | /* handle non block size remaining and sotre unused byte count in left */ |
Vanger | 0:b86d15c6ba29 | 2489 | if (sz) { |
Vanger | 0:b86d15c6ba29 | 2490 | AesEncrypt(aes, (byte*)aes->reg, (byte*)aes->tmp); |
Vanger | 0:b86d15c6ba29 | 2491 | IncrementAesCounter((byte*)aes->reg); |
Vanger | 0:b86d15c6ba29 | 2492 | |
Vanger | 0:b86d15c6ba29 | 2493 | aes->left = AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2494 | tmp = (byte*)aes->tmp; |
Vanger | 0:b86d15c6ba29 | 2495 | |
Vanger | 0:b86d15c6ba29 | 2496 | while (sz--) { |
Vanger | 0:b86d15c6ba29 | 2497 | *(out++) = *(in++) ^ *(tmp++); |
Vanger | 0:b86d15c6ba29 | 2498 | aes->left--; |
Vanger | 0:b86d15c6ba29 | 2499 | } |
Vanger | 0:b86d15c6ba29 | 2500 | } |
Vanger | 0:b86d15c6ba29 | 2501 | } |
Vanger | 0:b86d15c6ba29 | 2502 | |
Vanger | 0:b86d15c6ba29 | 2503 | #endif /* STM32F2_CRYPTO, AES-CTR block */ |
Vanger | 0:b86d15c6ba29 | 2504 | |
Vanger | 0:b86d15c6ba29 | 2505 | #endif /* CYASSL_AES_COUNTER */ |
Vanger | 0:b86d15c6ba29 | 2506 | |
Vanger | 0:b86d15c6ba29 | 2507 | #ifdef HAVE_AESGCM |
Vanger | 0:b86d15c6ba29 | 2508 | |
Vanger | 0:b86d15c6ba29 | 2509 | /* |
Vanger | 0:b86d15c6ba29 | 2510 | * The IV for AES GCM, stored in struct Aes's member reg, is comprised of |
Vanger | 0:b86d15c6ba29 | 2511 | * three parts in order: |
Vanger | 0:b86d15c6ba29 | 2512 | * 1. The implicit IV. This is generated from the PRF using the shared |
Vanger | 0:b86d15c6ba29 | 2513 | * secrets between endpoints. It is 4 bytes long. |
Vanger | 0:b86d15c6ba29 | 2514 | * 2. The explicit IV. This is set by the user of the AES. It needs to be |
Vanger | 0:b86d15c6ba29 | 2515 | * unique for each call to encrypt. The explicit IV is shared with the |
Vanger | 0:b86d15c6ba29 | 2516 | * other end of the transaction in the clear. |
Vanger | 0:b86d15c6ba29 | 2517 | * 3. The counter. Each block of data is encrypted with its own sequence |
Vanger | 0:b86d15c6ba29 | 2518 | * number counter. |
Vanger | 0:b86d15c6ba29 | 2519 | */ |
Vanger | 0:b86d15c6ba29 | 2520 | |
Vanger | 0:b86d15c6ba29 | 2521 | #ifdef STM32F2_CRYPTO |
Vanger | 0:b86d15c6ba29 | 2522 | #error "STM32F2 crypto doesn't currently support AES-GCM mode" |
Vanger | 0:b86d15c6ba29 | 2523 | |
Vanger | 0:b86d15c6ba29 | 2524 | #elif defined(HAVE_COLDFIRE_SEC) |
Vanger | 0:b86d15c6ba29 | 2525 | #error "Coldfire SEC doesn't currently support AES-GCM mode" |
Vanger | 0:b86d15c6ba29 | 2526 | |
Vanger | 0:b86d15c6ba29 | 2527 | #endif |
Vanger | 0:b86d15c6ba29 | 2528 | |
Vanger | 0:b86d15c6ba29 | 2529 | enum { |
Vanger | 0:b86d15c6ba29 | 2530 | CTR_SZ = 4 |
Vanger | 0:b86d15c6ba29 | 2531 | }; |
Vanger | 0:b86d15c6ba29 | 2532 | |
Vanger | 0:b86d15c6ba29 | 2533 | |
Vanger | 0:b86d15c6ba29 | 2534 | static INLINE void InitGcmCounter(byte* inOutCtr) |
Vanger | 0:b86d15c6ba29 | 2535 | { |
Vanger | 0:b86d15c6ba29 | 2536 | inOutCtr[AES_BLOCK_SIZE - 4] = 0; |
Vanger | 0:b86d15c6ba29 | 2537 | inOutCtr[AES_BLOCK_SIZE - 3] = 0; |
Vanger | 0:b86d15c6ba29 | 2538 | inOutCtr[AES_BLOCK_SIZE - 2] = 0; |
Vanger | 0:b86d15c6ba29 | 2539 | inOutCtr[AES_BLOCK_SIZE - 1] = 1; |
Vanger | 0:b86d15c6ba29 | 2540 | } |
Vanger | 0:b86d15c6ba29 | 2541 | |
Vanger | 0:b86d15c6ba29 | 2542 | |
Vanger | 0:b86d15c6ba29 | 2543 | static INLINE void IncrementGcmCounter(byte* inOutCtr) |
Vanger | 0:b86d15c6ba29 | 2544 | { |
Vanger | 0:b86d15c6ba29 | 2545 | int i; |
Vanger | 0:b86d15c6ba29 | 2546 | |
Vanger | 0:b86d15c6ba29 | 2547 | /* in network byte order so start at end and work back */ |
Vanger | 0:b86d15c6ba29 | 2548 | for (i = AES_BLOCK_SIZE - 1; i >= AES_BLOCK_SIZE - CTR_SZ; i--) { |
Vanger | 0:b86d15c6ba29 | 2549 | if (++inOutCtr[i]) /* we're done unless we overflow */ |
Vanger | 0:b86d15c6ba29 | 2550 | return; |
Vanger | 0:b86d15c6ba29 | 2551 | } |
Vanger | 0:b86d15c6ba29 | 2552 | } |
Vanger | 0:b86d15c6ba29 | 2553 | |
Vanger | 0:b86d15c6ba29 | 2554 | |
Vanger | 0:b86d15c6ba29 | 2555 | #if defined(GCM_SMALL) || defined(GCM_TABLE) |
Vanger | 0:b86d15c6ba29 | 2556 | |
Vanger | 0:b86d15c6ba29 | 2557 | static INLINE void FlattenSzInBits(byte* buf, word32 sz) |
Vanger | 0:b86d15c6ba29 | 2558 | { |
Vanger | 0:b86d15c6ba29 | 2559 | /* Multiply the sz by 8 */ |
Vanger | 0:b86d15c6ba29 | 2560 | word32 szHi = (sz >> (8*sizeof(sz) - 3)); |
Vanger | 0:b86d15c6ba29 | 2561 | sz <<= 3; |
Vanger | 0:b86d15c6ba29 | 2562 | |
Vanger | 0:b86d15c6ba29 | 2563 | /* copy over the words of the sz into the destination buffer */ |
Vanger | 0:b86d15c6ba29 | 2564 | buf[0] = (szHi >> 24) & 0xff; |
Vanger | 0:b86d15c6ba29 | 2565 | buf[1] = (szHi >> 16) & 0xff; |
Vanger | 0:b86d15c6ba29 | 2566 | buf[2] = (szHi >> 8) & 0xff; |
Vanger | 0:b86d15c6ba29 | 2567 | buf[3] = szHi & 0xff; |
Vanger | 0:b86d15c6ba29 | 2568 | buf[4] = (sz >> 24) & 0xff; |
Vanger | 0:b86d15c6ba29 | 2569 | buf[5] = (sz >> 16) & 0xff; |
Vanger | 0:b86d15c6ba29 | 2570 | buf[6] = (sz >> 8) & 0xff; |
Vanger | 0:b86d15c6ba29 | 2571 | buf[7] = sz & 0xff; |
Vanger | 0:b86d15c6ba29 | 2572 | } |
Vanger | 0:b86d15c6ba29 | 2573 | |
Vanger | 0:b86d15c6ba29 | 2574 | |
Vanger | 0:b86d15c6ba29 | 2575 | static INLINE void RIGHTSHIFTX(byte* x) |
Vanger | 0:b86d15c6ba29 | 2576 | { |
Vanger | 0:b86d15c6ba29 | 2577 | int i; |
Vanger | 0:b86d15c6ba29 | 2578 | int carryOut = 0; |
Vanger | 0:b86d15c6ba29 | 2579 | int carryIn = 0; |
Vanger | 0:b86d15c6ba29 | 2580 | int borrow = x[15] & 0x01; |
Vanger | 0:b86d15c6ba29 | 2581 | |
Vanger | 0:b86d15c6ba29 | 2582 | for (i = 0; i < AES_BLOCK_SIZE; i++) { |
Vanger | 0:b86d15c6ba29 | 2583 | carryOut = x[i] & 0x01; |
Vanger | 0:b86d15c6ba29 | 2584 | x[i] = (x[i] >> 1) | (carryIn ? 0x80 : 0); |
Vanger | 0:b86d15c6ba29 | 2585 | carryIn = carryOut; |
Vanger | 0:b86d15c6ba29 | 2586 | } |
Vanger | 0:b86d15c6ba29 | 2587 | if (borrow) x[0] ^= 0xE1; |
Vanger | 0:b86d15c6ba29 | 2588 | } |
Vanger | 0:b86d15c6ba29 | 2589 | |
Vanger | 0:b86d15c6ba29 | 2590 | #endif /* defined(GCM_SMALL) || defined(GCM_TABLE) */ |
Vanger | 0:b86d15c6ba29 | 2591 | |
Vanger | 0:b86d15c6ba29 | 2592 | |
Vanger | 0:b86d15c6ba29 | 2593 | #ifdef GCM_TABLE |
Vanger | 0:b86d15c6ba29 | 2594 | |
Vanger | 0:b86d15c6ba29 | 2595 | static void GenerateM0(Aes* aes) |
Vanger | 0:b86d15c6ba29 | 2596 | { |
Vanger | 0:b86d15c6ba29 | 2597 | int i, j; |
Vanger | 0:b86d15c6ba29 | 2598 | byte (*m)[AES_BLOCK_SIZE] = aes->M0; |
Vanger | 0:b86d15c6ba29 | 2599 | |
Vanger | 0:b86d15c6ba29 | 2600 | XMEMCPY(m[128], aes->H, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2601 | |
Vanger | 0:b86d15c6ba29 | 2602 | for (i = 64; i > 0; i /= 2) { |
Vanger | 0:b86d15c6ba29 | 2603 | XMEMCPY(m[i], m[i*2], AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2604 | RIGHTSHIFTX(m[i]); |
Vanger | 0:b86d15c6ba29 | 2605 | } |
Vanger | 0:b86d15c6ba29 | 2606 | |
Vanger | 0:b86d15c6ba29 | 2607 | for (i = 2; i < 256; i *= 2) { |
Vanger | 0:b86d15c6ba29 | 2608 | for (j = 1; j < i; j++) { |
Vanger | 0:b86d15c6ba29 | 2609 | XMEMCPY(m[i+j], m[i], AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2610 | xorbuf(m[i+j], m[j], AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2611 | } |
Vanger | 0:b86d15c6ba29 | 2612 | } |
Vanger | 0:b86d15c6ba29 | 2613 | |
Vanger | 0:b86d15c6ba29 | 2614 | XMEMSET(m[0], 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2615 | } |
Vanger | 0:b86d15c6ba29 | 2616 | |
Vanger | 0:b86d15c6ba29 | 2617 | #endif /* GCM_TABLE */ |
Vanger | 0:b86d15c6ba29 | 2618 | |
Vanger | 0:b86d15c6ba29 | 2619 | |
Vanger | 0:b86d15c6ba29 | 2620 | int AesGcmSetKey(Aes* aes, const byte* key, word32 len) |
Vanger | 0:b86d15c6ba29 | 2621 | { |
Vanger | 0:b86d15c6ba29 | 2622 | int ret; |
Vanger | 0:b86d15c6ba29 | 2623 | byte iv[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 2624 | |
Vanger | 0:b86d15c6ba29 | 2625 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 2626 | byte* rk = (byte*)aes->key; |
Vanger | 0:b86d15c6ba29 | 2627 | #endif |
Vanger | 0:b86d15c6ba29 | 2628 | |
Vanger | 0:b86d15c6ba29 | 2629 | if (!((len == 16) || (len == 24) || (len == 32))) |
Vanger | 0:b86d15c6ba29 | 2630 | return BAD_FUNC_ARG; |
Vanger | 0:b86d15c6ba29 | 2631 | |
Vanger | 0:b86d15c6ba29 | 2632 | XMEMSET(iv, 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2633 | ret = AesSetKey(aes, key, len, iv, AES_ENCRYPTION); |
Vanger | 0:b86d15c6ba29 | 2634 | |
Vanger | 0:b86d15c6ba29 | 2635 | if (ret == 0) { |
Vanger | 0:b86d15c6ba29 | 2636 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 2637 | cau_aes_encrypt(iv, rk, aes->rounds, aes->H); |
Vanger | 0:b86d15c6ba29 | 2638 | #else |
Vanger | 0:b86d15c6ba29 | 2639 | AesEncrypt(aes, iv, aes->H); |
Vanger | 0:b86d15c6ba29 | 2640 | #endif |
Vanger | 0:b86d15c6ba29 | 2641 | #ifdef GCM_TABLE |
Vanger | 0:b86d15c6ba29 | 2642 | GenerateM0(aes); |
Vanger | 0:b86d15c6ba29 | 2643 | #endif /* GCM_TABLE */ |
Vanger | 0:b86d15c6ba29 | 2644 | } |
Vanger | 0:b86d15c6ba29 | 2645 | |
Vanger | 0:b86d15c6ba29 | 2646 | return ret; |
Vanger | 0:b86d15c6ba29 | 2647 | } |
Vanger | 0:b86d15c6ba29 | 2648 | |
Vanger | 0:b86d15c6ba29 | 2649 | |
Vanger | 0:b86d15c6ba29 | 2650 | #if defined(GCM_SMALL) |
Vanger | 0:b86d15c6ba29 | 2651 | |
Vanger | 0:b86d15c6ba29 | 2652 | static void GMULT(byte* X, byte* Y) |
Vanger | 0:b86d15c6ba29 | 2653 | { |
Vanger | 0:b86d15c6ba29 | 2654 | byte Z[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 2655 | byte V[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 2656 | int i, j; |
Vanger | 0:b86d15c6ba29 | 2657 | |
Vanger | 0:b86d15c6ba29 | 2658 | XMEMSET(Z, 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2659 | XMEMCPY(V, X, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2660 | for (i = 0; i < AES_BLOCK_SIZE; i++) |
Vanger | 0:b86d15c6ba29 | 2661 | { |
Vanger | 0:b86d15c6ba29 | 2662 | byte y = Y[i]; |
Vanger | 0:b86d15c6ba29 | 2663 | for (j = 0; j < 8; j++) |
Vanger | 0:b86d15c6ba29 | 2664 | { |
Vanger | 0:b86d15c6ba29 | 2665 | if (y & 0x80) { |
Vanger | 0:b86d15c6ba29 | 2666 | xorbuf(Z, V, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2667 | } |
Vanger | 0:b86d15c6ba29 | 2668 | |
Vanger | 0:b86d15c6ba29 | 2669 | RIGHTSHIFTX(V); |
Vanger | 0:b86d15c6ba29 | 2670 | y = y << 1; |
Vanger | 0:b86d15c6ba29 | 2671 | } |
Vanger | 0:b86d15c6ba29 | 2672 | } |
Vanger | 0:b86d15c6ba29 | 2673 | XMEMCPY(X, Z, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2674 | } |
Vanger | 0:b86d15c6ba29 | 2675 | |
Vanger | 0:b86d15c6ba29 | 2676 | |
Vanger | 0:b86d15c6ba29 | 2677 | static void GHASH(Aes* aes, const byte* a, word32 aSz, |
Vanger | 0:b86d15c6ba29 | 2678 | const byte* c, word32 cSz, byte* s, word32 sSz) |
Vanger | 0:b86d15c6ba29 | 2679 | { |
Vanger | 0:b86d15c6ba29 | 2680 | byte x[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 2681 | byte scratch[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 2682 | word32 blocks, partial; |
Vanger | 0:b86d15c6ba29 | 2683 | byte* h = aes->H; |
Vanger | 0:b86d15c6ba29 | 2684 | |
Vanger | 0:b86d15c6ba29 | 2685 | XMEMSET(x, 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2686 | |
Vanger | 0:b86d15c6ba29 | 2687 | /* Hash in A, the Additional Authentication Data */ |
Vanger | 0:b86d15c6ba29 | 2688 | if (aSz != 0 && a != NULL) { |
Vanger | 0:b86d15c6ba29 | 2689 | blocks = aSz / AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2690 | partial = aSz % AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2691 | while (blocks--) { |
Vanger | 0:b86d15c6ba29 | 2692 | xorbuf(x, a, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2693 | GMULT(x, h); |
Vanger | 0:b86d15c6ba29 | 2694 | a += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2695 | } |
Vanger | 0:b86d15c6ba29 | 2696 | if (partial != 0) { |
Vanger | 0:b86d15c6ba29 | 2697 | XMEMSET(scratch, 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2698 | XMEMCPY(scratch, a, partial); |
Vanger | 0:b86d15c6ba29 | 2699 | xorbuf(x, scratch, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2700 | GMULT(x, h); |
Vanger | 0:b86d15c6ba29 | 2701 | } |
Vanger | 0:b86d15c6ba29 | 2702 | } |
Vanger | 0:b86d15c6ba29 | 2703 | |
Vanger | 0:b86d15c6ba29 | 2704 | /* Hash in C, the Ciphertext */ |
Vanger | 0:b86d15c6ba29 | 2705 | if (cSz != 0 && c != NULL) { |
Vanger | 0:b86d15c6ba29 | 2706 | blocks = cSz / AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2707 | partial = cSz % AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2708 | while (blocks--) { |
Vanger | 0:b86d15c6ba29 | 2709 | xorbuf(x, c, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2710 | GMULT(x, h); |
Vanger | 0:b86d15c6ba29 | 2711 | c += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2712 | } |
Vanger | 0:b86d15c6ba29 | 2713 | if (partial != 0) { |
Vanger | 0:b86d15c6ba29 | 2714 | XMEMSET(scratch, 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2715 | XMEMCPY(scratch, c, partial); |
Vanger | 0:b86d15c6ba29 | 2716 | xorbuf(x, scratch, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2717 | GMULT(x, h); |
Vanger | 0:b86d15c6ba29 | 2718 | } |
Vanger | 0:b86d15c6ba29 | 2719 | } |
Vanger | 0:b86d15c6ba29 | 2720 | |
Vanger | 0:b86d15c6ba29 | 2721 | /* Hash in the lengths of A and C in bits */ |
Vanger | 0:b86d15c6ba29 | 2722 | FlattenSzInBits(&scratch[0], aSz); |
Vanger | 0:b86d15c6ba29 | 2723 | FlattenSzInBits(&scratch[8], cSz); |
Vanger | 0:b86d15c6ba29 | 2724 | xorbuf(x, scratch, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2725 | GMULT(x, h); |
Vanger | 0:b86d15c6ba29 | 2726 | |
Vanger | 0:b86d15c6ba29 | 2727 | /* Copy the result into s. */ |
Vanger | 0:b86d15c6ba29 | 2728 | XMEMCPY(s, x, sSz); |
Vanger | 0:b86d15c6ba29 | 2729 | } |
Vanger | 0:b86d15c6ba29 | 2730 | |
Vanger | 0:b86d15c6ba29 | 2731 | /* end GCM_SMALL */ |
Vanger | 0:b86d15c6ba29 | 2732 | #elif defined(GCM_TABLE) |
Vanger | 0:b86d15c6ba29 | 2733 | |
Vanger | 0:b86d15c6ba29 | 2734 | static const byte R[256][2] = { |
Vanger | 0:b86d15c6ba29 | 2735 | {0x00, 0x00}, {0x01, 0xc2}, {0x03, 0x84}, {0x02, 0x46}, |
Vanger | 0:b86d15c6ba29 | 2736 | {0x07, 0x08}, {0x06, 0xca}, {0x04, 0x8c}, {0x05, 0x4e}, |
Vanger | 0:b86d15c6ba29 | 2737 | {0x0e, 0x10}, {0x0f, 0xd2}, {0x0d, 0x94}, {0x0c, 0x56}, |
Vanger | 0:b86d15c6ba29 | 2738 | {0x09, 0x18}, {0x08, 0xda}, {0x0a, 0x9c}, {0x0b, 0x5e}, |
Vanger | 0:b86d15c6ba29 | 2739 | {0x1c, 0x20}, {0x1d, 0xe2}, {0x1f, 0xa4}, {0x1e, 0x66}, |
Vanger | 0:b86d15c6ba29 | 2740 | {0x1b, 0x28}, {0x1a, 0xea}, {0x18, 0xac}, {0x19, 0x6e}, |
Vanger | 0:b86d15c6ba29 | 2741 | {0x12, 0x30}, {0x13, 0xf2}, {0x11, 0xb4}, {0x10, 0x76}, |
Vanger | 0:b86d15c6ba29 | 2742 | {0x15, 0x38}, {0x14, 0xfa}, {0x16, 0xbc}, {0x17, 0x7e}, |
Vanger | 0:b86d15c6ba29 | 2743 | {0x38, 0x40}, {0x39, 0x82}, {0x3b, 0xc4}, {0x3a, 0x06}, |
Vanger | 0:b86d15c6ba29 | 2744 | {0x3f, 0x48}, {0x3e, 0x8a}, {0x3c, 0xcc}, {0x3d, 0x0e}, |
Vanger | 0:b86d15c6ba29 | 2745 | {0x36, 0x50}, {0x37, 0x92}, {0x35, 0xd4}, {0x34, 0x16}, |
Vanger | 0:b86d15c6ba29 | 2746 | {0x31, 0x58}, {0x30, 0x9a}, {0x32, 0xdc}, {0x33, 0x1e}, |
Vanger | 0:b86d15c6ba29 | 2747 | {0x24, 0x60}, {0x25, 0xa2}, {0x27, 0xe4}, {0x26, 0x26}, |
Vanger | 0:b86d15c6ba29 | 2748 | {0x23, 0x68}, {0x22, 0xaa}, {0x20, 0xec}, {0x21, 0x2e}, |
Vanger | 0:b86d15c6ba29 | 2749 | {0x2a, 0x70}, {0x2b, 0xb2}, {0x29, 0xf4}, {0x28, 0x36}, |
Vanger | 0:b86d15c6ba29 | 2750 | {0x2d, 0x78}, {0x2c, 0xba}, {0x2e, 0xfc}, {0x2f, 0x3e}, |
Vanger | 0:b86d15c6ba29 | 2751 | {0x70, 0x80}, {0x71, 0x42}, {0x73, 0x04}, {0x72, 0xc6}, |
Vanger | 0:b86d15c6ba29 | 2752 | {0x77, 0x88}, {0x76, 0x4a}, {0x74, 0x0c}, {0x75, 0xce}, |
Vanger | 0:b86d15c6ba29 | 2753 | {0x7e, 0x90}, {0x7f, 0x52}, {0x7d, 0x14}, {0x7c, 0xd6}, |
Vanger | 0:b86d15c6ba29 | 2754 | {0x79, 0x98}, {0x78, 0x5a}, {0x7a, 0x1c}, {0x7b, 0xde}, |
Vanger | 0:b86d15c6ba29 | 2755 | {0x6c, 0xa0}, {0x6d, 0x62}, {0x6f, 0x24}, {0x6e, 0xe6}, |
Vanger | 0:b86d15c6ba29 | 2756 | {0x6b, 0xa8}, {0x6a, 0x6a}, {0x68, 0x2c}, {0x69, 0xee}, |
Vanger | 0:b86d15c6ba29 | 2757 | {0x62, 0xb0}, {0x63, 0x72}, {0x61, 0x34}, {0x60, 0xf6}, |
Vanger | 0:b86d15c6ba29 | 2758 | {0x65, 0xb8}, {0x64, 0x7a}, {0x66, 0x3c}, {0x67, 0xfe}, |
Vanger | 0:b86d15c6ba29 | 2759 | {0x48, 0xc0}, {0x49, 0x02}, {0x4b, 0x44}, {0x4a, 0x86}, |
Vanger | 0:b86d15c6ba29 | 2760 | {0x4f, 0xc8}, {0x4e, 0x0a}, {0x4c, 0x4c}, {0x4d, 0x8e}, |
Vanger | 0:b86d15c6ba29 | 2761 | {0x46, 0xd0}, {0x47, 0x12}, {0x45, 0x54}, {0x44, 0x96}, |
Vanger | 0:b86d15c6ba29 | 2762 | {0x41, 0xd8}, {0x40, 0x1a}, {0x42, 0x5c}, {0x43, 0x9e}, |
Vanger | 0:b86d15c6ba29 | 2763 | {0x54, 0xe0}, {0x55, 0x22}, {0x57, 0x64}, {0x56, 0xa6}, |
Vanger | 0:b86d15c6ba29 | 2764 | {0x53, 0xe8}, {0x52, 0x2a}, {0x50, 0x6c}, {0x51, 0xae}, |
Vanger | 0:b86d15c6ba29 | 2765 | {0x5a, 0xf0}, {0x5b, 0x32}, {0x59, 0x74}, {0x58, 0xb6}, |
Vanger | 0:b86d15c6ba29 | 2766 | {0x5d, 0xf8}, {0x5c, 0x3a}, {0x5e, 0x7c}, {0x5f, 0xbe}, |
Vanger | 0:b86d15c6ba29 | 2767 | {0xe1, 0x00}, {0xe0, 0xc2}, {0xe2, 0x84}, {0xe3, 0x46}, |
Vanger | 0:b86d15c6ba29 | 2768 | {0xe6, 0x08}, {0xe7, 0xca}, {0xe5, 0x8c}, {0xe4, 0x4e}, |
Vanger | 0:b86d15c6ba29 | 2769 | {0xef, 0x10}, {0xee, 0xd2}, {0xec, 0x94}, {0xed, 0x56}, |
Vanger | 0:b86d15c6ba29 | 2770 | {0xe8, 0x18}, {0xe9, 0xda}, {0xeb, 0x9c}, {0xea, 0x5e}, |
Vanger | 0:b86d15c6ba29 | 2771 | {0xfd, 0x20}, {0xfc, 0xe2}, {0xfe, 0xa4}, {0xff, 0x66}, |
Vanger | 0:b86d15c6ba29 | 2772 | {0xfa, 0x28}, {0xfb, 0xea}, {0xf9, 0xac}, {0xf8, 0x6e}, |
Vanger | 0:b86d15c6ba29 | 2773 | {0xf3, 0x30}, {0xf2, 0xf2}, {0xf0, 0xb4}, {0xf1, 0x76}, |
Vanger | 0:b86d15c6ba29 | 2774 | {0xf4, 0x38}, {0xf5, 0xfa}, {0xf7, 0xbc}, {0xf6, 0x7e}, |
Vanger | 0:b86d15c6ba29 | 2775 | {0xd9, 0x40}, {0xd8, 0x82}, {0xda, 0xc4}, {0xdb, 0x06}, |
Vanger | 0:b86d15c6ba29 | 2776 | {0xde, 0x48}, {0xdf, 0x8a}, {0xdd, 0xcc}, {0xdc, 0x0e}, |
Vanger | 0:b86d15c6ba29 | 2777 | {0xd7, 0x50}, {0xd6, 0x92}, {0xd4, 0xd4}, {0xd5, 0x16}, |
Vanger | 0:b86d15c6ba29 | 2778 | {0xd0, 0x58}, {0xd1, 0x9a}, {0xd3, 0xdc}, {0xd2, 0x1e}, |
Vanger | 0:b86d15c6ba29 | 2779 | {0xc5, 0x60}, {0xc4, 0xa2}, {0xc6, 0xe4}, {0xc7, 0x26}, |
Vanger | 0:b86d15c6ba29 | 2780 | {0xc2, 0x68}, {0xc3, 0xaa}, {0xc1, 0xec}, {0xc0, 0x2e}, |
Vanger | 0:b86d15c6ba29 | 2781 | {0xcb, 0x70}, {0xca, 0xb2}, {0xc8, 0xf4}, {0xc9, 0x36}, |
Vanger | 0:b86d15c6ba29 | 2782 | {0xcc, 0x78}, {0xcd, 0xba}, {0xcf, 0xfc}, {0xce, 0x3e}, |
Vanger | 0:b86d15c6ba29 | 2783 | {0x91, 0x80}, {0x90, 0x42}, {0x92, 0x04}, {0x93, 0xc6}, |
Vanger | 0:b86d15c6ba29 | 2784 | {0x96, 0x88}, {0x97, 0x4a}, {0x95, 0x0c}, {0x94, 0xce}, |
Vanger | 0:b86d15c6ba29 | 2785 | {0x9f, 0x90}, {0x9e, 0x52}, {0x9c, 0x14}, {0x9d, 0xd6}, |
Vanger | 0:b86d15c6ba29 | 2786 | {0x98, 0x98}, {0x99, 0x5a}, {0x9b, 0x1c}, {0x9a, 0xde}, |
Vanger | 0:b86d15c6ba29 | 2787 | {0x8d, 0xa0}, {0x8c, 0x62}, {0x8e, 0x24}, {0x8f, 0xe6}, |
Vanger | 0:b86d15c6ba29 | 2788 | {0x8a, 0xa8}, {0x8b, 0x6a}, {0x89, 0x2c}, {0x88, 0xee}, |
Vanger | 0:b86d15c6ba29 | 2789 | {0x83, 0xb0}, {0x82, 0x72}, {0x80, 0x34}, {0x81, 0xf6}, |
Vanger | 0:b86d15c6ba29 | 2790 | {0x84, 0xb8}, {0x85, 0x7a}, {0x87, 0x3c}, {0x86, 0xfe}, |
Vanger | 0:b86d15c6ba29 | 2791 | {0xa9, 0xc0}, {0xa8, 0x02}, {0xaa, 0x44}, {0xab, 0x86}, |
Vanger | 0:b86d15c6ba29 | 2792 | {0xae, 0xc8}, {0xaf, 0x0a}, {0xad, 0x4c}, {0xac, 0x8e}, |
Vanger | 0:b86d15c6ba29 | 2793 | {0xa7, 0xd0}, {0xa6, 0x12}, {0xa4, 0x54}, {0xa5, 0x96}, |
Vanger | 0:b86d15c6ba29 | 2794 | {0xa0, 0xd8}, {0xa1, 0x1a}, {0xa3, 0x5c}, {0xa2, 0x9e}, |
Vanger | 0:b86d15c6ba29 | 2795 | {0xb5, 0xe0}, {0xb4, 0x22}, {0xb6, 0x64}, {0xb7, 0xa6}, |
Vanger | 0:b86d15c6ba29 | 2796 | {0xb2, 0xe8}, {0xb3, 0x2a}, {0xb1, 0x6c}, {0xb0, 0xae}, |
Vanger | 0:b86d15c6ba29 | 2797 | {0xbb, 0xf0}, {0xba, 0x32}, {0xb8, 0x74}, {0xb9, 0xb6}, |
Vanger | 0:b86d15c6ba29 | 2798 | {0xbc, 0xf8}, {0xbd, 0x3a}, {0xbf, 0x7c}, {0xbe, 0xbe} }; |
Vanger | 0:b86d15c6ba29 | 2799 | |
Vanger | 0:b86d15c6ba29 | 2800 | |
Vanger | 0:b86d15c6ba29 | 2801 | static void GMULT(byte *x, byte m[256][AES_BLOCK_SIZE]) |
Vanger | 0:b86d15c6ba29 | 2802 | { |
Vanger | 0:b86d15c6ba29 | 2803 | int i, j; |
Vanger | 0:b86d15c6ba29 | 2804 | byte Z[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 2805 | byte a; |
Vanger | 0:b86d15c6ba29 | 2806 | |
Vanger | 0:b86d15c6ba29 | 2807 | XMEMSET(Z, 0, sizeof(Z)); |
Vanger | 0:b86d15c6ba29 | 2808 | |
Vanger | 0:b86d15c6ba29 | 2809 | for (i = 15; i > 0; i--) { |
Vanger | 0:b86d15c6ba29 | 2810 | xorbuf(Z, m[x[i]], AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2811 | a = Z[15]; |
Vanger | 0:b86d15c6ba29 | 2812 | |
Vanger | 0:b86d15c6ba29 | 2813 | for (j = 15; j > 0; j--) { |
Vanger | 0:b86d15c6ba29 | 2814 | Z[j] = Z[j-1]; |
Vanger | 0:b86d15c6ba29 | 2815 | } |
Vanger | 0:b86d15c6ba29 | 2816 | |
Vanger | 0:b86d15c6ba29 | 2817 | Z[0] = R[a][0]; |
Vanger | 0:b86d15c6ba29 | 2818 | Z[1] ^= R[a][1]; |
Vanger | 0:b86d15c6ba29 | 2819 | } |
Vanger | 0:b86d15c6ba29 | 2820 | xorbuf(Z, m[x[0]], AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2821 | |
Vanger | 0:b86d15c6ba29 | 2822 | XMEMCPY(x, Z, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2823 | } |
Vanger | 0:b86d15c6ba29 | 2824 | |
Vanger | 0:b86d15c6ba29 | 2825 | |
Vanger | 0:b86d15c6ba29 | 2826 | static void GHASH(Aes* aes, const byte* a, word32 aSz, |
Vanger | 0:b86d15c6ba29 | 2827 | const byte* c, word32 cSz, byte* s, word32 sSz) |
Vanger | 0:b86d15c6ba29 | 2828 | { |
Vanger | 0:b86d15c6ba29 | 2829 | byte x[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 2830 | byte scratch[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 2831 | word32 blocks, partial; |
Vanger | 0:b86d15c6ba29 | 2832 | |
Vanger | 0:b86d15c6ba29 | 2833 | XMEMSET(x, 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2834 | |
Vanger | 0:b86d15c6ba29 | 2835 | /* Hash in A, the Additional Authentication Data */ |
Vanger | 0:b86d15c6ba29 | 2836 | if (aSz != 0 && a != NULL) { |
Vanger | 0:b86d15c6ba29 | 2837 | blocks = aSz / AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2838 | partial = aSz % AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2839 | while (blocks--) { |
Vanger | 0:b86d15c6ba29 | 2840 | xorbuf(x, a, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2841 | GMULT(x, aes->M0); |
Vanger | 0:b86d15c6ba29 | 2842 | a += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2843 | } |
Vanger | 0:b86d15c6ba29 | 2844 | if (partial != 0) { |
Vanger | 0:b86d15c6ba29 | 2845 | XMEMSET(scratch, 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2846 | XMEMCPY(scratch, a, partial); |
Vanger | 0:b86d15c6ba29 | 2847 | xorbuf(x, scratch, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2848 | GMULT(x, aes->M0); |
Vanger | 0:b86d15c6ba29 | 2849 | } |
Vanger | 0:b86d15c6ba29 | 2850 | } |
Vanger | 0:b86d15c6ba29 | 2851 | |
Vanger | 0:b86d15c6ba29 | 2852 | /* Hash in C, the Ciphertext */ |
Vanger | 0:b86d15c6ba29 | 2853 | if (cSz != 0 && c != NULL) { |
Vanger | 0:b86d15c6ba29 | 2854 | blocks = cSz / AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2855 | partial = cSz % AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2856 | while (blocks--) { |
Vanger | 0:b86d15c6ba29 | 2857 | xorbuf(x, c, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2858 | GMULT(x, aes->M0); |
Vanger | 0:b86d15c6ba29 | 2859 | c += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2860 | } |
Vanger | 0:b86d15c6ba29 | 2861 | if (partial != 0) { |
Vanger | 0:b86d15c6ba29 | 2862 | XMEMSET(scratch, 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2863 | XMEMCPY(scratch, c, partial); |
Vanger | 0:b86d15c6ba29 | 2864 | xorbuf(x, scratch, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2865 | GMULT(x, aes->M0); |
Vanger | 0:b86d15c6ba29 | 2866 | } |
Vanger | 0:b86d15c6ba29 | 2867 | } |
Vanger | 0:b86d15c6ba29 | 2868 | |
Vanger | 0:b86d15c6ba29 | 2869 | /* Hash in the lengths of A and C in bits */ |
Vanger | 0:b86d15c6ba29 | 2870 | FlattenSzInBits(&scratch[0], aSz); |
Vanger | 0:b86d15c6ba29 | 2871 | FlattenSzInBits(&scratch[8], cSz); |
Vanger | 0:b86d15c6ba29 | 2872 | xorbuf(x, scratch, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2873 | GMULT(x, aes->M0); |
Vanger | 0:b86d15c6ba29 | 2874 | |
Vanger | 0:b86d15c6ba29 | 2875 | /* Copy the result into s. */ |
Vanger | 0:b86d15c6ba29 | 2876 | XMEMCPY(s, x, sSz); |
Vanger | 0:b86d15c6ba29 | 2877 | } |
Vanger | 0:b86d15c6ba29 | 2878 | |
Vanger | 0:b86d15c6ba29 | 2879 | /* end GCM_TABLE */ |
Vanger | 0:b86d15c6ba29 | 2880 | #elif defined(WORD64_AVAILABLE) && !defined(GCM_WORD32) |
Vanger | 0:b86d15c6ba29 | 2881 | |
Vanger | 0:b86d15c6ba29 | 2882 | static void GMULT(word64* X, word64* Y) |
Vanger | 0:b86d15c6ba29 | 2883 | { |
Vanger | 0:b86d15c6ba29 | 2884 | word64 Z[2] = {0,0}; |
Vanger | 0:b86d15c6ba29 | 2885 | word64 V[2] ; |
Vanger | 0:b86d15c6ba29 | 2886 | int i, j; |
Vanger | 0:b86d15c6ba29 | 2887 | V[0] = X[0] ; V[1] = X[1] ; |
Vanger | 0:b86d15c6ba29 | 2888 | |
Vanger | 0:b86d15c6ba29 | 2889 | for (i = 0; i < 2; i++) |
Vanger | 0:b86d15c6ba29 | 2890 | { |
Vanger | 0:b86d15c6ba29 | 2891 | word64 y = Y[i]; |
Vanger | 0:b86d15c6ba29 | 2892 | for (j = 0; j < 64; j++) |
Vanger | 0:b86d15c6ba29 | 2893 | { |
Vanger | 0:b86d15c6ba29 | 2894 | if (y & 0x8000000000000000) { |
Vanger | 0:b86d15c6ba29 | 2895 | Z[0] ^= V[0]; |
Vanger | 0:b86d15c6ba29 | 2896 | Z[1] ^= V[1]; |
Vanger | 0:b86d15c6ba29 | 2897 | } |
Vanger | 0:b86d15c6ba29 | 2898 | |
Vanger | 0:b86d15c6ba29 | 2899 | if (V[1] & 0x0000000000000001) { |
Vanger | 0:b86d15c6ba29 | 2900 | V[1] >>= 1; |
Vanger | 0:b86d15c6ba29 | 2901 | V[1] |= ((V[0] & 0x0000000000000001) ? 0x8000000000000000 : 0); |
Vanger | 0:b86d15c6ba29 | 2902 | V[0] >>= 1; |
Vanger | 0:b86d15c6ba29 | 2903 | V[0] ^= 0xE100000000000000; |
Vanger | 0:b86d15c6ba29 | 2904 | } |
Vanger | 0:b86d15c6ba29 | 2905 | else { |
Vanger | 0:b86d15c6ba29 | 2906 | V[1] >>= 1; |
Vanger | 0:b86d15c6ba29 | 2907 | V[1] |= ((V[0] & 0x0000000000000001) ? 0x8000000000000000 : 0); |
Vanger | 0:b86d15c6ba29 | 2908 | V[0] >>= 1; |
Vanger | 0:b86d15c6ba29 | 2909 | } |
Vanger | 0:b86d15c6ba29 | 2910 | y <<= 1; |
Vanger | 0:b86d15c6ba29 | 2911 | } |
Vanger | 0:b86d15c6ba29 | 2912 | } |
Vanger | 0:b86d15c6ba29 | 2913 | X[0] = Z[0]; |
Vanger | 0:b86d15c6ba29 | 2914 | X[1] = Z[1]; |
Vanger | 0:b86d15c6ba29 | 2915 | } |
Vanger | 0:b86d15c6ba29 | 2916 | |
Vanger | 0:b86d15c6ba29 | 2917 | |
Vanger | 0:b86d15c6ba29 | 2918 | static void GHASH(Aes* aes, const byte* a, word32 aSz, |
Vanger | 0:b86d15c6ba29 | 2919 | const byte* c, word32 cSz, byte* s, word32 sSz) |
Vanger | 0:b86d15c6ba29 | 2920 | { |
Vanger | 0:b86d15c6ba29 | 2921 | word64 x[2] = {0,0}; |
Vanger | 0:b86d15c6ba29 | 2922 | word32 blocks, partial; |
Vanger | 0:b86d15c6ba29 | 2923 | word64 bigH[2]; |
Vanger | 0:b86d15c6ba29 | 2924 | |
Vanger | 0:b86d15c6ba29 | 2925 | XMEMCPY(bigH, aes->H, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2926 | #ifdef LITTLE_ENDIAN_ORDER |
Vanger | 0:b86d15c6ba29 | 2927 | ByteReverseWords64(bigH, bigH, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2928 | #endif |
Vanger | 0:b86d15c6ba29 | 2929 | |
Vanger | 0:b86d15c6ba29 | 2930 | /* Hash in A, the Additional Authentication Data */ |
Vanger | 0:b86d15c6ba29 | 2931 | if (aSz != 0 && a != NULL) { |
Vanger | 0:b86d15c6ba29 | 2932 | word64 bigA[2]; |
Vanger | 0:b86d15c6ba29 | 2933 | blocks = aSz / AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2934 | partial = aSz % AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2935 | while (blocks--) { |
Vanger | 0:b86d15c6ba29 | 2936 | XMEMCPY(bigA, a, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2937 | #ifdef LITTLE_ENDIAN_ORDER |
Vanger | 0:b86d15c6ba29 | 2938 | ByteReverseWords64(bigA, bigA, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2939 | #endif |
Vanger | 0:b86d15c6ba29 | 2940 | x[0] ^= bigA[0]; |
Vanger | 0:b86d15c6ba29 | 2941 | x[1] ^= bigA[1]; |
Vanger | 0:b86d15c6ba29 | 2942 | GMULT(x, bigH); |
Vanger | 0:b86d15c6ba29 | 2943 | a += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2944 | } |
Vanger | 0:b86d15c6ba29 | 2945 | if (partial != 0) { |
Vanger | 0:b86d15c6ba29 | 2946 | XMEMSET(bigA, 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2947 | XMEMCPY(bigA, a, partial); |
Vanger | 0:b86d15c6ba29 | 2948 | #ifdef LITTLE_ENDIAN_ORDER |
Vanger | 0:b86d15c6ba29 | 2949 | ByteReverseWords64(bigA, bigA, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2950 | #endif |
Vanger | 0:b86d15c6ba29 | 2951 | x[0] ^= bigA[0]; |
Vanger | 0:b86d15c6ba29 | 2952 | x[1] ^= bigA[1]; |
Vanger | 0:b86d15c6ba29 | 2953 | GMULT(x, bigH); |
Vanger | 0:b86d15c6ba29 | 2954 | } |
Vanger | 0:b86d15c6ba29 | 2955 | } |
Vanger | 0:b86d15c6ba29 | 2956 | |
Vanger | 0:b86d15c6ba29 | 2957 | /* Hash in C, the Ciphertext */ |
Vanger | 0:b86d15c6ba29 | 2958 | if (cSz != 0 && c != NULL) { |
Vanger | 0:b86d15c6ba29 | 2959 | word64 bigC[2]; |
Vanger | 0:b86d15c6ba29 | 2960 | blocks = cSz / AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2961 | partial = cSz % AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2962 | while (blocks--) { |
Vanger | 0:b86d15c6ba29 | 2963 | XMEMCPY(bigC, c, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2964 | #ifdef LITTLE_ENDIAN_ORDER |
Vanger | 0:b86d15c6ba29 | 2965 | ByteReverseWords64(bigC, bigC, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2966 | #endif |
Vanger | 0:b86d15c6ba29 | 2967 | x[0] ^= bigC[0]; |
Vanger | 0:b86d15c6ba29 | 2968 | x[1] ^= bigC[1]; |
Vanger | 0:b86d15c6ba29 | 2969 | GMULT(x, bigH); |
Vanger | 0:b86d15c6ba29 | 2970 | c += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 2971 | } |
Vanger | 0:b86d15c6ba29 | 2972 | if (partial != 0) { |
Vanger | 0:b86d15c6ba29 | 2973 | XMEMSET(bigC, 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2974 | XMEMCPY(bigC, c, partial); |
Vanger | 0:b86d15c6ba29 | 2975 | #ifdef LITTLE_ENDIAN_ORDER |
Vanger | 0:b86d15c6ba29 | 2976 | ByteReverseWords64(bigC, bigC, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2977 | #endif |
Vanger | 0:b86d15c6ba29 | 2978 | x[0] ^= bigC[0]; |
Vanger | 0:b86d15c6ba29 | 2979 | x[1] ^= bigC[1]; |
Vanger | 0:b86d15c6ba29 | 2980 | GMULT(x, bigH); |
Vanger | 0:b86d15c6ba29 | 2981 | } |
Vanger | 0:b86d15c6ba29 | 2982 | } |
Vanger | 0:b86d15c6ba29 | 2983 | |
Vanger | 0:b86d15c6ba29 | 2984 | /* Hash in the lengths in bits of A and C */ |
Vanger | 0:b86d15c6ba29 | 2985 | { |
Vanger | 0:b86d15c6ba29 | 2986 | word64 len[2] ; |
Vanger | 0:b86d15c6ba29 | 2987 | len[0] = aSz ; len[1] = cSz; |
Vanger | 0:b86d15c6ba29 | 2988 | |
Vanger | 0:b86d15c6ba29 | 2989 | /* Lengths are in bytes. Convert to bits. */ |
Vanger | 0:b86d15c6ba29 | 2990 | len[0] *= 8; |
Vanger | 0:b86d15c6ba29 | 2991 | len[1] *= 8; |
Vanger | 0:b86d15c6ba29 | 2992 | |
Vanger | 0:b86d15c6ba29 | 2993 | x[0] ^= len[0]; |
Vanger | 0:b86d15c6ba29 | 2994 | x[1] ^= len[1]; |
Vanger | 0:b86d15c6ba29 | 2995 | GMULT(x, bigH); |
Vanger | 0:b86d15c6ba29 | 2996 | } |
Vanger | 0:b86d15c6ba29 | 2997 | #ifdef LITTLE_ENDIAN_ORDER |
Vanger | 0:b86d15c6ba29 | 2998 | ByteReverseWords64(x, x, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 2999 | #endif |
Vanger | 0:b86d15c6ba29 | 3000 | XMEMCPY(s, x, sSz); |
Vanger | 0:b86d15c6ba29 | 3001 | } |
Vanger | 0:b86d15c6ba29 | 3002 | |
Vanger | 0:b86d15c6ba29 | 3003 | /* end defined(WORD64_AVAILABLE) && !defined(GCM_WORD32) */ |
Vanger | 0:b86d15c6ba29 | 3004 | #else /* GCM_WORD32 */ |
Vanger | 0:b86d15c6ba29 | 3005 | |
Vanger | 0:b86d15c6ba29 | 3006 | static void GMULT(word32* X, word32* Y) |
Vanger | 0:b86d15c6ba29 | 3007 | { |
Vanger | 0:b86d15c6ba29 | 3008 | word32 Z[4] = {0,0,0,0}; |
Vanger | 0:b86d15c6ba29 | 3009 | word32 V[4] ; |
Vanger | 0:b86d15c6ba29 | 3010 | int i, j; |
Vanger | 0:b86d15c6ba29 | 3011 | |
Vanger | 0:b86d15c6ba29 | 3012 | V[0] = X[0]; V[1] = X[1]; V[2] = X[2]; V[3] = X[3]; |
Vanger | 0:b86d15c6ba29 | 3013 | |
Vanger | 0:b86d15c6ba29 | 3014 | for (i = 0; i < 4; i++) |
Vanger | 0:b86d15c6ba29 | 3015 | { |
Vanger | 0:b86d15c6ba29 | 3016 | word32 y = Y[i]; |
Vanger | 0:b86d15c6ba29 | 3017 | for (j = 0; j < 32; j++) |
Vanger | 0:b86d15c6ba29 | 3018 | { |
Vanger | 0:b86d15c6ba29 | 3019 | if (y & 0x80000000) { |
Vanger | 0:b86d15c6ba29 | 3020 | Z[0] ^= V[0]; |
Vanger | 0:b86d15c6ba29 | 3021 | Z[1] ^= V[1]; |
Vanger | 0:b86d15c6ba29 | 3022 | Z[2] ^= V[2]; |
Vanger | 0:b86d15c6ba29 | 3023 | Z[3] ^= V[3]; |
Vanger | 0:b86d15c6ba29 | 3024 | } |
Vanger | 0:b86d15c6ba29 | 3025 | |
Vanger | 0:b86d15c6ba29 | 3026 | if (V[3] & 0x00000001) { |
Vanger | 0:b86d15c6ba29 | 3027 | V[3] >>= 1; |
Vanger | 0:b86d15c6ba29 | 3028 | V[3] |= ((V[2] & 0x00000001) ? 0x80000000 : 0); |
Vanger | 0:b86d15c6ba29 | 3029 | V[2] >>= 1; |
Vanger | 0:b86d15c6ba29 | 3030 | V[2] |= ((V[1] & 0x00000001) ? 0x80000000 : 0); |
Vanger | 0:b86d15c6ba29 | 3031 | V[1] >>= 1; |
Vanger | 0:b86d15c6ba29 | 3032 | V[1] |= ((V[0] & 0x00000001) ? 0x80000000 : 0); |
Vanger | 0:b86d15c6ba29 | 3033 | V[0] >>= 1; |
Vanger | 0:b86d15c6ba29 | 3034 | V[0] ^= 0xE1000000; |
Vanger | 0:b86d15c6ba29 | 3035 | } else { |
Vanger | 0:b86d15c6ba29 | 3036 | V[3] >>= 1; |
Vanger | 0:b86d15c6ba29 | 3037 | V[3] |= ((V[2] & 0x00000001) ? 0x80000000 : 0); |
Vanger | 0:b86d15c6ba29 | 3038 | V[2] >>= 1; |
Vanger | 0:b86d15c6ba29 | 3039 | V[2] |= ((V[1] & 0x00000001) ? 0x80000000 : 0); |
Vanger | 0:b86d15c6ba29 | 3040 | V[1] >>= 1; |
Vanger | 0:b86d15c6ba29 | 3041 | V[1] |= ((V[0] & 0x00000001) ? 0x80000000 : 0); |
Vanger | 0:b86d15c6ba29 | 3042 | V[0] >>= 1; |
Vanger | 0:b86d15c6ba29 | 3043 | } |
Vanger | 0:b86d15c6ba29 | 3044 | y <<= 1; |
Vanger | 0:b86d15c6ba29 | 3045 | } |
Vanger | 0:b86d15c6ba29 | 3046 | } |
Vanger | 0:b86d15c6ba29 | 3047 | X[0] = Z[0]; |
Vanger | 0:b86d15c6ba29 | 3048 | X[1] = Z[1]; |
Vanger | 0:b86d15c6ba29 | 3049 | X[2] = Z[2]; |
Vanger | 0:b86d15c6ba29 | 3050 | X[3] = Z[3]; |
Vanger | 0:b86d15c6ba29 | 3051 | } |
Vanger | 0:b86d15c6ba29 | 3052 | |
Vanger | 0:b86d15c6ba29 | 3053 | |
Vanger | 0:b86d15c6ba29 | 3054 | static void GHASH(Aes* aes, const byte* a, word32 aSz, |
Vanger | 0:b86d15c6ba29 | 3055 | const byte* c, word32 cSz, byte* s, word32 sSz) |
Vanger | 0:b86d15c6ba29 | 3056 | { |
Vanger | 0:b86d15c6ba29 | 3057 | word32 x[4] = {0,0,0,0}; |
Vanger | 0:b86d15c6ba29 | 3058 | word32 blocks, partial; |
Vanger | 0:b86d15c6ba29 | 3059 | word32 bigH[4]; |
Vanger | 0:b86d15c6ba29 | 3060 | |
Vanger | 0:b86d15c6ba29 | 3061 | XMEMCPY(bigH, aes->H, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3062 | #ifdef LITTLE_ENDIAN_ORDER |
Vanger | 0:b86d15c6ba29 | 3063 | ByteReverseWords(bigH, bigH, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3064 | #endif |
Vanger | 0:b86d15c6ba29 | 3065 | |
Vanger | 0:b86d15c6ba29 | 3066 | /* Hash in A, the Additional Authentication Data */ |
Vanger | 0:b86d15c6ba29 | 3067 | if (aSz != 0 && a != NULL) { |
Vanger | 0:b86d15c6ba29 | 3068 | word32 bigA[4]; |
Vanger | 0:b86d15c6ba29 | 3069 | blocks = aSz / AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3070 | partial = aSz % AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3071 | while (blocks--) { |
Vanger | 0:b86d15c6ba29 | 3072 | XMEMCPY(bigA, a, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3073 | #ifdef LITTLE_ENDIAN_ORDER |
Vanger | 0:b86d15c6ba29 | 3074 | ByteReverseWords(bigA, bigA, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3075 | #endif |
Vanger | 0:b86d15c6ba29 | 3076 | x[0] ^= bigA[0]; |
Vanger | 0:b86d15c6ba29 | 3077 | x[1] ^= bigA[1]; |
Vanger | 0:b86d15c6ba29 | 3078 | x[2] ^= bigA[2]; |
Vanger | 0:b86d15c6ba29 | 3079 | x[3] ^= bigA[3]; |
Vanger | 0:b86d15c6ba29 | 3080 | GMULT(x, bigH); |
Vanger | 0:b86d15c6ba29 | 3081 | a += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3082 | } |
Vanger | 0:b86d15c6ba29 | 3083 | if (partial != 0) { |
Vanger | 0:b86d15c6ba29 | 3084 | XMEMSET(bigA, 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3085 | XMEMCPY(bigA, a, partial); |
Vanger | 0:b86d15c6ba29 | 3086 | #ifdef LITTLE_ENDIAN_ORDER |
Vanger | 0:b86d15c6ba29 | 3087 | ByteReverseWords(bigA, bigA, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3088 | #endif |
Vanger | 0:b86d15c6ba29 | 3089 | x[0] ^= bigA[0]; |
Vanger | 0:b86d15c6ba29 | 3090 | x[1] ^= bigA[1]; |
Vanger | 0:b86d15c6ba29 | 3091 | x[2] ^= bigA[2]; |
Vanger | 0:b86d15c6ba29 | 3092 | x[3] ^= bigA[3]; |
Vanger | 0:b86d15c6ba29 | 3093 | GMULT(x, bigH); |
Vanger | 0:b86d15c6ba29 | 3094 | } |
Vanger | 0:b86d15c6ba29 | 3095 | } |
Vanger | 0:b86d15c6ba29 | 3096 | |
Vanger | 0:b86d15c6ba29 | 3097 | /* Hash in C, the Ciphertext */ |
Vanger | 0:b86d15c6ba29 | 3098 | if (cSz != 0 && c != NULL) { |
Vanger | 0:b86d15c6ba29 | 3099 | word32 bigC[4]; |
Vanger | 0:b86d15c6ba29 | 3100 | blocks = cSz / AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3101 | partial = cSz % AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3102 | while (blocks--) { |
Vanger | 0:b86d15c6ba29 | 3103 | XMEMCPY(bigC, c, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3104 | #ifdef LITTLE_ENDIAN_ORDER |
Vanger | 0:b86d15c6ba29 | 3105 | ByteReverseWords(bigC, bigC, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3106 | #endif |
Vanger | 0:b86d15c6ba29 | 3107 | x[0] ^= bigC[0]; |
Vanger | 0:b86d15c6ba29 | 3108 | x[1] ^= bigC[1]; |
Vanger | 0:b86d15c6ba29 | 3109 | x[2] ^= bigC[2]; |
Vanger | 0:b86d15c6ba29 | 3110 | x[3] ^= bigC[3]; |
Vanger | 0:b86d15c6ba29 | 3111 | GMULT(x, bigH); |
Vanger | 0:b86d15c6ba29 | 3112 | c += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3113 | } |
Vanger | 0:b86d15c6ba29 | 3114 | if (partial != 0) { |
Vanger | 0:b86d15c6ba29 | 3115 | XMEMSET(bigC, 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3116 | XMEMCPY(bigC, c, partial); |
Vanger | 0:b86d15c6ba29 | 3117 | #ifdef LITTLE_ENDIAN_ORDER |
Vanger | 0:b86d15c6ba29 | 3118 | ByteReverseWords(bigC, bigC, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3119 | #endif |
Vanger | 0:b86d15c6ba29 | 3120 | x[0] ^= bigC[0]; |
Vanger | 0:b86d15c6ba29 | 3121 | x[1] ^= bigC[1]; |
Vanger | 0:b86d15c6ba29 | 3122 | x[2] ^= bigC[2]; |
Vanger | 0:b86d15c6ba29 | 3123 | x[3] ^= bigC[3]; |
Vanger | 0:b86d15c6ba29 | 3124 | GMULT(x, bigH); |
Vanger | 0:b86d15c6ba29 | 3125 | } |
Vanger | 0:b86d15c6ba29 | 3126 | } |
Vanger | 0:b86d15c6ba29 | 3127 | |
Vanger | 0:b86d15c6ba29 | 3128 | /* Hash in the lengths in bits of A and C */ |
Vanger | 0:b86d15c6ba29 | 3129 | { |
Vanger | 0:b86d15c6ba29 | 3130 | word32 len[4]; |
Vanger | 0:b86d15c6ba29 | 3131 | |
Vanger | 0:b86d15c6ba29 | 3132 | /* Lengths are in bytes. Convert to bits. */ |
Vanger | 0:b86d15c6ba29 | 3133 | len[0] = (aSz >> (8*sizeof(aSz) - 3)); |
Vanger | 0:b86d15c6ba29 | 3134 | len[1] = aSz << 3; |
Vanger | 0:b86d15c6ba29 | 3135 | len[2] = (cSz >> (8*sizeof(cSz) - 3)); |
Vanger | 0:b86d15c6ba29 | 3136 | len[3] = cSz << 3; |
Vanger | 0:b86d15c6ba29 | 3137 | |
Vanger | 0:b86d15c6ba29 | 3138 | x[0] ^= len[0]; |
Vanger | 0:b86d15c6ba29 | 3139 | x[1] ^= len[1]; |
Vanger | 0:b86d15c6ba29 | 3140 | x[2] ^= len[2]; |
Vanger | 0:b86d15c6ba29 | 3141 | x[3] ^= len[3]; |
Vanger | 0:b86d15c6ba29 | 3142 | GMULT(x, bigH); |
Vanger | 0:b86d15c6ba29 | 3143 | } |
Vanger | 0:b86d15c6ba29 | 3144 | #ifdef LITTLE_ENDIAN_ORDER |
Vanger | 0:b86d15c6ba29 | 3145 | ByteReverseWords(x, x, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3146 | #endif |
Vanger | 0:b86d15c6ba29 | 3147 | XMEMCPY(s, x, sSz); |
Vanger | 0:b86d15c6ba29 | 3148 | } |
Vanger | 0:b86d15c6ba29 | 3149 | |
Vanger | 0:b86d15c6ba29 | 3150 | #endif /* end GCM_WORD32 */ |
Vanger | 0:b86d15c6ba29 | 3151 | |
Vanger | 0:b86d15c6ba29 | 3152 | |
Vanger | 0:b86d15c6ba29 | 3153 | int AesGcmEncrypt(Aes* aes, byte* out, const byte* in, word32 sz, |
Vanger | 0:b86d15c6ba29 | 3154 | const byte* iv, word32 ivSz, |
Vanger | 0:b86d15c6ba29 | 3155 | byte* authTag, word32 authTagSz, |
Vanger | 0:b86d15c6ba29 | 3156 | const byte* authIn, word32 authInSz) |
Vanger | 0:b86d15c6ba29 | 3157 | { |
Vanger | 0:b86d15c6ba29 | 3158 | word32 blocks = sz / AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3159 | word32 partial = sz % AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3160 | const byte* p = in; |
Vanger | 0:b86d15c6ba29 | 3161 | byte* c = out; |
Vanger | 0:b86d15c6ba29 | 3162 | byte counter[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 3163 | byte *ctr ; |
Vanger | 0:b86d15c6ba29 | 3164 | byte scratch[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 3165 | |
Vanger | 0:b86d15c6ba29 | 3166 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3167 | byte* key = (byte*)aes->key; |
Vanger | 0:b86d15c6ba29 | 3168 | #endif |
Vanger | 0:b86d15c6ba29 | 3169 | |
Vanger | 0:b86d15c6ba29 | 3170 | CYASSL_ENTER("AesGcmEncrypt"); |
Vanger | 0:b86d15c6ba29 | 3171 | |
Vanger | 0:b86d15c6ba29 | 3172 | #ifdef CYASSL_PIC32MZ_CRYPT |
Vanger | 0:b86d15c6ba29 | 3173 | ctr = (char *)aes->iv_ce ; |
Vanger | 0:b86d15c6ba29 | 3174 | #else |
Vanger | 0:b86d15c6ba29 | 3175 | ctr = counter ; |
Vanger | 0:b86d15c6ba29 | 3176 | #endif |
Vanger | 0:b86d15c6ba29 | 3177 | |
Vanger | 0:b86d15c6ba29 | 3178 | XMEMSET(ctr, 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3179 | XMEMCPY(ctr, iv, ivSz); |
Vanger | 0:b86d15c6ba29 | 3180 | InitGcmCounter(ctr); |
Vanger | 0:b86d15c6ba29 | 3181 | |
Vanger | 0:b86d15c6ba29 | 3182 | #ifdef CYASSL_PIC32MZ_CRYPT |
Vanger | 0:b86d15c6ba29 | 3183 | if(blocks) |
Vanger | 0:b86d15c6ba29 | 3184 | AesCrypt(aes, out, in, blocks*AES_BLOCK_SIZE, |
Vanger | 0:b86d15c6ba29 | 3185 | PIC32_ENCRYPTION, PIC32_ALGO_AES, PIC32_CRYPTOALGO_AES_GCM ); |
Vanger | 0:b86d15c6ba29 | 3186 | #endif |
Vanger | 0:b86d15c6ba29 | 3187 | while (blocks--) { |
Vanger | 0:b86d15c6ba29 | 3188 | IncrementGcmCounter(ctr); |
Vanger | 0:b86d15c6ba29 | 3189 | #ifndef CYASSL_PIC32MZ_CRYPT |
Vanger | 0:b86d15c6ba29 | 3190 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3191 | cau_aes_encrypt(ctr, key, aes->rounds, scratch); |
Vanger | 0:b86d15c6ba29 | 3192 | #else |
Vanger | 0:b86d15c6ba29 | 3193 | AesEncrypt(aes, ctr, scratch); |
Vanger | 0:b86d15c6ba29 | 3194 | #endif |
Vanger | 0:b86d15c6ba29 | 3195 | xorbuf(scratch, p, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3196 | XMEMCPY(c, scratch, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3197 | #endif |
Vanger | 0:b86d15c6ba29 | 3198 | p += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3199 | c += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3200 | } |
Vanger | 0:b86d15c6ba29 | 3201 | |
Vanger | 0:b86d15c6ba29 | 3202 | if (partial != 0) { |
Vanger | 0:b86d15c6ba29 | 3203 | IncrementGcmCounter(ctr); |
Vanger | 0:b86d15c6ba29 | 3204 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3205 | cau_aes_encrypt(ctr, key, aes->rounds, scratch); |
Vanger | 0:b86d15c6ba29 | 3206 | #else |
Vanger | 0:b86d15c6ba29 | 3207 | AesEncrypt(aes, ctr, scratch); |
Vanger | 0:b86d15c6ba29 | 3208 | #endif |
Vanger | 0:b86d15c6ba29 | 3209 | xorbuf(scratch, p, partial); |
Vanger | 0:b86d15c6ba29 | 3210 | XMEMCPY(c, scratch, partial); |
Vanger | 0:b86d15c6ba29 | 3211 | |
Vanger | 0:b86d15c6ba29 | 3212 | } |
Vanger | 0:b86d15c6ba29 | 3213 | |
Vanger | 0:b86d15c6ba29 | 3214 | GHASH(aes, authIn, authInSz, out, sz, authTag, authTagSz); |
Vanger | 0:b86d15c6ba29 | 3215 | InitGcmCounter(ctr); |
Vanger | 0:b86d15c6ba29 | 3216 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3217 | cau_aes_encrypt(ctr, key, aes->rounds, scratch); |
Vanger | 0:b86d15c6ba29 | 3218 | #else |
Vanger | 0:b86d15c6ba29 | 3219 | AesEncrypt(aes, ctr, scratch); |
Vanger | 0:b86d15c6ba29 | 3220 | #endif |
Vanger | 0:b86d15c6ba29 | 3221 | xorbuf(authTag, scratch, authTagSz); |
Vanger | 0:b86d15c6ba29 | 3222 | |
Vanger | 0:b86d15c6ba29 | 3223 | return 0; |
Vanger | 0:b86d15c6ba29 | 3224 | } |
Vanger | 0:b86d15c6ba29 | 3225 | |
Vanger | 0:b86d15c6ba29 | 3226 | |
Vanger | 0:b86d15c6ba29 | 3227 | int AesGcmDecrypt(Aes* aes, byte* out, const byte* in, word32 sz, |
Vanger | 0:b86d15c6ba29 | 3228 | const byte* iv, word32 ivSz, |
Vanger | 0:b86d15c6ba29 | 3229 | const byte* authTag, word32 authTagSz, |
Vanger | 0:b86d15c6ba29 | 3230 | const byte* authIn, word32 authInSz) |
Vanger | 0:b86d15c6ba29 | 3231 | { |
Vanger | 0:b86d15c6ba29 | 3232 | word32 blocks = sz / AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3233 | word32 partial = sz % AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3234 | const byte* c = in; |
Vanger | 0:b86d15c6ba29 | 3235 | byte* p = out; |
Vanger | 0:b86d15c6ba29 | 3236 | byte counter[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 3237 | byte *ctr ; |
Vanger | 0:b86d15c6ba29 | 3238 | byte scratch[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 3239 | |
Vanger | 0:b86d15c6ba29 | 3240 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3241 | byte* key = (byte*)aes->key; |
Vanger | 0:b86d15c6ba29 | 3242 | #endif |
Vanger | 0:b86d15c6ba29 | 3243 | |
Vanger | 0:b86d15c6ba29 | 3244 | CYASSL_ENTER("AesGcmDecrypt"); |
Vanger | 0:b86d15c6ba29 | 3245 | |
Vanger | 0:b86d15c6ba29 | 3246 | #ifdef CYASSL_PIC32MZ_CRYPT |
Vanger | 0:b86d15c6ba29 | 3247 | ctr = (char *)aes->iv_ce ; |
Vanger | 0:b86d15c6ba29 | 3248 | #else |
Vanger | 0:b86d15c6ba29 | 3249 | ctr = counter ; |
Vanger | 0:b86d15c6ba29 | 3250 | #endif |
Vanger | 0:b86d15c6ba29 | 3251 | |
Vanger | 0:b86d15c6ba29 | 3252 | XMEMSET(ctr, 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3253 | XMEMCPY(ctr, iv, ivSz); |
Vanger | 0:b86d15c6ba29 | 3254 | InitGcmCounter(ctr); |
Vanger | 0:b86d15c6ba29 | 3255 | |
Vanger | 0:b86d15c6ba29 | 3256 | /* Calculate the authTag again using the received auth data and the |
Vanger | 0:b86d15c6ba29 | 3257 | * cipher text. */ |
Vanger | 0:b86d15c6ba29 | 3258 | { |
Vanger | 0:b86d15c6ba29 | 3259 | byte Tprime[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 3260 | byte EKY0[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 3261 | |
Vanger | 0:b86d15c6ba29 | 3262 | GHASH(aes, authIn, authInSz, in, sz, Tprime, sizeof(Tprime)); |
Vanger | 0:b86d15c6ba29 | 3263 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3264 | cau_aes_encrypt(ctr, key, aes->rounds, EKY0); |
Vanger | 0:b86d15c6ba29 | 3265 | #else |
Vanger | 0:b86d15c6ba29 | 3266 | AesEncrypt(aes, ctr, EKY0); |
Vanger | 0:b86d15c6ba29 | 3267 | #endif |
Vanger | 0:b86d15c6ba29 | 3268 | xorbuf(Tprime, EKY0, sizeof(Tprime)); |
Vanger | 0:b86d15c6ba29 | 3269 | |
Vanger | 0:b86d15c6ba29 | 3270 | if (XMEMCMP(authTag, Tprime, authTagSz) != 0) { |
Vanger | 0:b86d15c6ba29 | 3271 | return AES_GCM_AUTH_E; |
Vanger | 0:b86d15c6ba29 | 3272 | } |
Vanger | 0:b86d15c6ba29 | 3273 | } |
Vanger | 0:b86d15c6ba29 | 3274 | |
Vanger | 0:b86d15c6ba29 | 3275 | #ifdef CYASSL_PIC32MZ_CRYPT |
Vanger | 0:b86d15c6ba29 | 3276 | if(blocks) |
Vanger | 0:b86d15c6ba29 | 3277 | AesCrypt(aes, out, in, blocks*AES_BLOCK_SIZE, |
Vanger | 0:b86d15c6ba29 | 3278 | PIC32_DECRYPTION, PIC32_ALGO_AES, PIC32_CRYPTOALGO_AES_GCM ); |
Vanger | 0:b86d15c6ba29 | 3279 | #endif |
Vanger | 0:b86d15c6ba29 | 3280 | |
Vanger | 0:b86d15c6ba29 | 3281 | while (blocks--) { |
Vanger | 0:b86d15c6ba29 | 3282 | IncrementGcmCounter(ctr); |
Vanger | 0:b86d15c6ba29 | 3283 | #ifndef CYASSL_PIC32MZ_CRYPT |
Vanger | 0:b86d15c6ba29 | 3284 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3285 | cau_aes_encrypt(ctr, key, aes->rounds, scratch); |
Vanger | 0:b86d15c6ba29 | 3286 | #else |
Vanger | 0:b86d15c6ba29 | 3287 | AesEncrypt(aes, ctr, scratch); |
Vanger | 0:b86d15c6ba29 | 3288 | #endif |
Vanger | 0:b86d15c6ba29 | 3289 | xorbuf(scratch, c, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3290 | XMEMCPY(p, scratch, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3291 | #endif |
Vanger | 0:b86d15c6ba29 | 3292 | p += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3293 | c += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3294 | } |
Vanger | 0:b86d15c6ba29 | 3295 | if (partial != 0) { |
Vanger | 0:b86d15c6ba29 | 3296 | IncrementGcmCounter(ctr); |
Vanger | 0:b86d15c6ba29 | 3297 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3298 | cau_aes_encrypt(ctr, key, aes->rounds, scratch); |
Vanger | 0:b86d15c6ba29 | 3299 | #else |
Vanger | 0:b86d15c6ba29 | 3300 | AesEncrypt(aes, ctr, scratch); |
Vanger | 0:b86d15c6ba29 | 3301 | #endif |
Vanger | 0:b86d15c6ba29 | 3302 | xorbuf(scratch, c, partial); |
Vanger | 0:b86d15c6ba29 | 3303 | XMEMCPY(p, scratch, partial); |
Vanger | 0:b86d15c6ba29 | 3304 | } |
Vanger | 0:b86d15c6ba29 | 3305 | return 0; |
Vanger | 0:b86d15c6ba29 | 3306 | } |
Vanger | 0:b86d15c6ba29 | 3307 | |
Vanger | 0:b86d15c6ba29 | 3308 | |
Vanger | 0:b86d15c6ba29 | 3309 | |
Vanger | 0:b86d15c6ba29 | 3310 | CYASSL_API int GmacSetKey(Gmac* gmac, const byte* key, word32 len) |
Vanger | 0:b86d15c6ba29 | 3311 | { |
Vanger | 0:b86d15c6ba29 | 3312 | return AesGcmSetKey(&gmac->aes, key, len); |
Vanger | 0:b86d15c6ba29 | 3313 | } |
Vanger | 0:b86d15c6ba29 | 3314 | |
Vanger | 0:b86d15c6ba29 | 3315 | |
Vanger | 0:b86d15c6ba29 | 3316 | CYASSL_API int GmacUpdate(Gmac* gmac, const byte* iv, word32 ivSz, |
Vanger | 0:b86d15c6ba29 | 3317 | const byte* authIn, word32 authInSz, |
Vanger | 0:b86d15c6ba29 | 3318 | byte* authTag, word32 authTagSz) |
Vanger | 0:b86d15c6ba29 | 3319 | { |
Vanger | 0:b86d15c6ba29 | 3320 | return AesGcmEncrypt(&gmac->aes, NULL, NULL, 0, iv, ivSz, |
Vanger | 0:b86d15c6ba29 | 3321 | authTag, authTagSz, authIn, authInSz); |
Vanger | 0:b86d15c6ba29 | 3322 | } |
Vanger | 0:b86d15c6ba29 | 3323 | |
Vanger | 0:b86d15c6ba29 | 3324 | #endif /* HAVE_AESGCM */ |
Vanger | 0:b86d15c6ba29 | 3325 | |
Vanger | 0:b86d15c6ba29 | 3326 | |
Vanger | 0:b86d15c6ba29 | 3327 | #ifdef HAVE_AESCCM |
Vanger | 0:b86d15c6ba29 | 3328 | |
Vanger | 0:b86d15c6ba29 | 3329 | #ifdef STM32F2_CRYPTO |
Vanger | 0:b86d15c6ba29 | 3330 | #error "STM32F2 crypto doesn't currently support AES-CCM mode" |
Vanger | 0:b86d15c6ba29 | 3331 | |
Vanger | 0:b86d15c6ba29 | 3332 | #elif defined(HAVE_COLDFIRE_SEC) |
Vanger | 0:b86d15c6ba29 | 3333 | #error "Coldfire SEC doesn't currently support AES-CCM mode" |
Vanger | 0:b86d15c6ba29 | 3334 | |
Vanger | 0:b86d15c6ba29 | 3335 | #elif defined(CYASSL_PIC32MZ_CRYPT) |
Vanger | 0:b86d15c6ba29 | 3336 | #error "PIC32MZ doesn't currently support AES-CCM mode" |
Vanger | 0:b86d15c6ba29 | 3337 | |
Vanger | 0:b86d15c6ba29 | 3338 | #endif |
Vanger | 0:b86d15c6ba29 | 3339 | |
Vanger | 0:b86d15c6ba29 | 3340 | void AesCcmSetKey(Aes* aes, const byte* key, word32 keySz) |
Vanger | 0:b86d15c6ba29 | 3341 | { |
Vanger | 0:b86d15c6ba29 | 3342 | byte nonce[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 3343 | |
Vanger | 0:b86d15c6ba29 | 3344 | if (!((keySz == 16) || (keySz == 24) || (keySz == 32))) |
Vanger | 0:b86d15c6ba29 | 3345 | return; |
Vanger | 0:b86d15c6ba29 | 3346 | |
Vanger | 0:b86d15c6ba29 | 3347 | XMEMSET(nonce, 0, sizeof(nonce)); |
Vanger | 0:b86d15c6ba29 | 3348 | AesSetKey(aes, key, keySz, nonce, AES_ENCRYPTION); |
Vanger | 0:b86d15c6ba29 | 3349 | } |
Vanger | 0:b86d15c6ba29 | 3350 | |
Vanger | 0:b86d15c6ba29 | 3351 | |
Vanger | 0:b86d15c6ba29 | 3352 | static void roll_x(Aes* aes, const byte* in, word32 inSz, byte* out) |
Vanger | 0:b86d15c6ba29 | 3353 | { |
Vanger | 0:b86d15c6ba29 | 3354 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3355 | byte* key = (byte*)aes->key; |
Vanger | 0:b86d15c6ba29 | 3356 | #endif |
Vanger | 0:b86d15c6ba29 | 3357 | |
Vanger | 0:b86d15c6ba29 | 3358 | /* process the bulk of the data */ |
Vanger | 0:b86d15c6ba29 | 3359 | while (inSz >= AES_BLOCK_SIZE) { |
Vanger | 0:b86d15c6ba29 | 3360 | xorbuf(out, in, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3361 | in += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3362 | inSz -= AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3363 | |
Vanger | 0:b86d15c6ba29 | 3364 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3365 | cau_aes_encrypt(out, key, aes->rounds, out); |
Vanger | 0:b86d15c6ba29 | 3366 | #else |
Vanger | 0:b86d15c6ba29 | 3367 | AesEncrypt(aes, out, out); |
Vanger | 0:b86d15c6ba29 | 3368 | #endif |
Vanger | 0:b86d15c6ba29 | 3369 | } |
Vanger | 0:b86d15c6ba29 | 3370 | |
Vanger | 0:b86d15c6ba29 | 3371 | /* process remainder of the data */ |
Vanger | 0:b86d15c6ba29 | 3372 | if (inSz > 0) { |
Vanger | 0:b86d15c6ba29 | 3373 | xorbuf(out, in, inSz); |
Vanger | 0:b86d15c6ba29 | 3374 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3375 | cau_aes_encrypt(out, key, aes->rounds, out); |
Vanger | 0:b86d15c6ba29 | 3376 | #else |
Vanger | 0:b86d15c6ba29 | 3377 | AesEncrypt(aes, out, out); |
Vanger | 0:b86d15c6ba29 | 3378 | #endif |
Vanger | 0:b86d15c6ba29 | 3379 | } |
Vanger | 0:b86d15c6ba29 | 3380 | } |
Vanger | 0:b86d15c6ba29 | 3381 | |
Vanger | 0:b86d15c6ba29 | 3382 | |
Vanger | 0:b86d15c6ba29 | 3383 | static void roll_auth(Aes* aes, const byte* in, word32 inSz, byte* out) |
Vanger | 0:b86d15c6ba29 | 3384 | { |
Vanger | 0:b86d15c6ba29 | 3385 | word32 authLenSz; |
Vanger | 0:b86d15c6ba29 | 3386 | word32 remainder; |
Vanger | 0:b86d15c6ba29 | 3387 | |
Vanger | 0:b86d15c6ba29 | 3388 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3389 | byte* key = (byte*)aes->key; |
Vanger | 0:b86d15c6ba29 | 3390 | #endif |
Vanger | 0:b86d15c6ba29 | 3391 | |
Vanger | 0:b86d15c6ba29 | 3392 | /* encode the length in */ |
Vanger | 0:b86d15c6ba29 | 3393 | if (inSz <= 0xFEFF) { |
Vanger | 0:b86d15c6ba29 | 3394 | authLenSz = 2; |
Vanger | 0:b86d15c6ba29 | 3395 | out[0] ^= ((inSz & 0xFF00) >> 8); |
Vanger | 0:b86d15c6ba29 | 3396 | out[1] ^= (inSz & 0x00FF); |
Vanger | 0:b86d15c6ba29 | 3397 | } |
Vanger | 0:b86d15c6ba29 | 3398 | else if (inSz <= 0xFFFFFFFF) { |
Vanger | 0:b86d15c6ba29 | 3399 | authLenSz = 6; |
Vanger | 0:b86d15c6ba29 | 3400 | out[0] ^= 0xFF; out[1] ^= 0xFE; |
Vanger | 0:b86d15c6ba29 | 3401 | out[2] ^= ((inSz & 0xFF000000) >> 24); |
Vanger | 0:b86d15c6ba29 | 3402 | out[3] ^= ((inSz & 0x00FF0000) >> 16); |
Vanger | 0:b86d15c6ba29 | 3403 | out[4] ^= ((inSz & 0x0000FF00) >> 8); |
Vanger | 0:b86d15c6ba29 | 3404 | out[5] ^= (inSz & 0x000000FF); |
Vanger | 0:b86d15c6ba29 | 3405 | } |
Vanger | 0:b86d15c6ba29 | 3406 | /* Note, the protocol handles auth data up to 2^64, but we are |
Vanger | 0:b86d15c6ba29 | 3407 | * using 32-bit sizes right now, so the bigger data isn't handled |
Vanger | 0:b86d15c6ba29 | 3408 | * else if (inSz <= 0xFFFFFFFFFFFFFFFF) {} */ |
Vanger | 0:b86d15c6ba29 | 3409 | else |
Vanger | 0:b86d15c6ba29 | 3410 | return; |
Vanger | 0:b86d15c6ba29 | 3411 | |
Vanger | 0:b86d15c6ba29 | 3412 | /* start fill out the rest of the first block */ |
Vanger | 0:b86d15c6ba29 | 3413 | remainder = AES_BLOCK_SIZE - authLenSz; |
Vanger | 0:b86d15c6ba29 | 3414 | if (inSz >= remainder) { |
Vanger | 0:b86d15c6ba29 | 3415 | /* plenty of bulk data to fill the remainder of this block */ |
Vanger | 0:b86d15c6ba29 | 3416 | xorbuf(out + authLenSz, in, remainder); |
Vanger | 0:b86d15c6ba29 | 3417 | inSz -= remainder; |
Vanger | 0:b86d15c6ba29 | 3418 | in += remainder; |
Vanger | 0:b86d15c6ba29 | 3419 | } |
Vanger | 0:b86d15c6ba29 | 3420 | else { |
Vanger | 0:b86d15c6ba29 | 3421 | /* not enough bulk data, copy what is available, and pad zero */ |
Vanger | 0:b86d15c6ba29 | 3422 | xorbuf(out + authLenSz, in, inSz); |
Vanger | 0:b86d15c6ba29 | 3423 | inSz = 0; |
Vanger | 0:b86d15c6ba29 | 3424 | } |
Vanger | 0:b86d15c6ba29 | 3425 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3426 | cau_aes_encrypt(out, key, aes->rounds, out); |
Vanger | 0:b86d15c6ba29 | 3427 | #else |
Vanger | 0:b86d15c6ba29 | 3428 | AesEncrypt(aes, out, out); |
Vanger | 0:b86d15c6ba29 | 3429 | #endif |
Vanger | 0:b86d15c6ba29 | 3430 | |
Vanger | 0:b86d15c6ba29 | 3431 | if (inSz > 0) |
Vanger | 0:b86d15c6ba29 | 3432 | roll_x(aes, in, inSz, out); |
Vanger | 0:b86d15c6ba29 | 3433 | } |
Vanger | 0:b86d15c6ba29 | 3434 | |
Vanger | 0:b86d15c6ba29 | 3435 | |
Vanger | 0:b86d15c6ba29 | 3436 | static INLINE void AesCcmCtrInc(byte* B, word32 lenSz) |
Vanger | 0:b86d15c6ba29 | 3437 | { |
Vanger | 0:b86d15c6ba29 | 3438 | word32 i; |
Vanger | 0:b86d15c6ba29 | 3439 | |
Vanger | 0:b86d15c6ba29 | 3440 | for (i = 0; i < lenSz; i++) { |
Vanger | 0:b86d15c6ba29 | 3441 | if (++B[AES_BLOCK_SIZE - 1 - i] != 0) return; |
Vanger | 0:b86d15c6ba29 | 3442 | } |
Vanger | 0:b86d15c6ba29 | 3443 | } |
Vanger | 0:b86d15c6ba29 | 3444 | |
Vanger | 0:b86d15c6ba29 | 3445 | |
Vanger | 0:b86d15c6ba29 | 3446 | void AesCcmEncrypt(Aes* aes, byte* out, const byte* in, word32 inSz, |
Vanger | 0:b86d15c6ba29 | 3447 | const byte* nonce, word32 nonceSz, |
Vanger | 0:b86d15c6ba29 | 3448 | byte* authTag, word32 authTagSz, |
Vanger | 0:b86d15c6ba29 | 3449 | const byte* authIn, word32 authInSz) |
Vanger | 0:b86d15c6ba29 | 3450 | { |
Vanger | 0:b86d15c6ba29 | 3451 | byte A[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 3452 | byte B[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 3453 | byte lenSz; |
Vanger | 0:b86d15c6ba29 | 3454 | word32 i; |
Vanger | 0:b86d15c6ba29 | 3455 | |
Vanger | 0:b86d15c6ba29 | 3456 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3457 | byte* key = (byte*)aes->key; |
Vanger | 0:b86d15c6ba29 | 3458 | #endif |
Vanger | 0:b86d15c6ba29 | 3459 | |
Vanger | 0:b86d15c6ba29 | 3460 | XMEMCPY(B+1, nonce, nonceSz); |
Vanger | 0:b86d15c6ba29 | 3461 | lenSz = AES_BLOCK_SIZE - 1 - (byte)nonceSz; |
Vanger | 0:b86d15c6ba29 | 3462 | B[0] = (authInSz > 0 ? 64 : 0) |
Vanger | 0:b86d15c6ba29 | 3463 | + (8 * (((byte)authTagSz - 2) / 2)) |
Vanger | 0:b86d15c6ba29 | 3464 | + (lenSz - 1); |
Vanger | 0:b86d15c6ba29 | 3465 | for (i = 0; i < lenSz; i++) |
Vanger | 0:b86d15c6ba29 | 3466 | B[AES_BLOCK_SIZE - 1 - i] = (inSz >> (8 * i)) & 0xFF; |
Vanger | 0:b86d15c6ba29 | 3467 | |
Vanger | 0:b86d15c6ba29 | 3468 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3469 | cau_aes_encrypt(B, key, aes->rounds, A); |
Vanger | 0:b86d15c6ba29 | 3470 | #else |
Vanger | 0:b86d15c6ba29 | 3471 | AesEncrypt(aes, B, A); |
Vanger | 0:b86d15c6ba29 | 3472 | #endif |
Vanger | 0:b86d15c6ba29 | 3473 | if (authInSz > 0) |
Vanger | 0:b86d15c6ba29 | 3474 | roll_auth(aes, authIn, authInSz, A); |
Vanger | 0:b86d15c6ba29 | 3475 | if (inSz > 0) |
Vanger | 0:b86d15c6ba29 | 3476 | roll_x(aes, in, inSz, A); |
Vanger | 0:b86d15c6ba29 | 3477 | XMEMCPY(authTag, A, authTagSz); |
Vanger | 0:b86d15c6ba29 | 3478 | |
Vanger | 0:b86d15c6ba29 | 3479 | B[0] = lenSz - 1; |
Vanger | 0:b86d15c6ba29 | 3480 | for (i = 0; i < lenSz; i++) |
Vanger | 0:b86d15c6ba29 | 3481 | B[AES_BLOCK_SIZE - 1 - i] = 0; |
Vanger | 0:b86d15c6ba29 | 3482 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3483 | cau_aes_encrypt(B, key, aes->rounds, A); |
Vanger | 0:b86d15c6ba29 | 3484 | #else |
Vanger | 0:b86d15c6ba29 | 3485 | AesEncrypt(aes, B, A); |
Vanger | 0:b86d15c6ba29 | 3486 | #endif |
Vanger | 0:b86d15c6ba29 | 3487 | xorbuf(authTag, A, authTagSz); |
Vanger | 0:b86d15c6ba29 | 3488 | |
Vanger | 0:b86d15c6ba29 | 3489 | B[15] = 1; |
Vanger | 0:b86d15c6ba29 | 3490 | while (inSz >= AES_BLOCK_SIZE) { |
Vanger | 0:b86d15c6ba29 | 3491 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3492 | cau_aes_encrypt(B, key, aes->rounds, A); |
Vanger | 0:b86d15c6ba29 | 3493 | #else |
Vanger | 0:b86d15c6ba29 | 3494 | AesEncrypt(aes, B, A); |
Vanger | 0:b86d15c6ba29 | 3495 | #endif |
Vanger | 0:b86d15c6ba29 | 3496 | xorbuf(A, in, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3497 | XMEMCPY(out, A, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3498 | |
Vanger | 0:b86d15c6ba29 | 3499 | AesCcmCtrInc(B, lenSz); |
Vanger | 0:b86d15c6ba29 | 3500 | inSz -= AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3501 | in += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3502 | out += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3503 | } |
Vanger | 0:b86d15c6ba29 | 3504 | if (inSz > 0) { |
Vanger | 0:b86d15c6ba29 | 3505 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3506 | cau_aes_encrypt(B, key, aes->rounds, A); |
Vanger | 0:b86d15c6ba29 | 3507 | #else |
Vanger | 0:b86d15c6ba29 | 3508 | AesEncrypt(aes, B, A); |
Vanger | 0:b86d15c6ba29 | 3509 | #endif |
Vanger | 0:b86d15c6ba29 | 3510 | xorbuf(A, in, inSz); |
Vanger | 0:b86d15c6ba29 | 3511 | XMEMCPY(out, A, inSz); |
Vanger | 0:b86d15c6ba29 | 3512 | } |
Vanger | 0:b86d15c6ba29 | 3513 | |
Vanger | 0:b86d15c6ba29 | 3514 | XMEMSET(A, 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3515 | XMEMSET(B, 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3516 | } |
Vanger | 0:b86d15c6ba29 | 3517 | |
Vanger | 0:b86d15c6ba29 | 3518 | |
Vanger | 0:b86d15c6ba29 | 3519 | int AesCcmDecrypt(Aes* aes, byte* out, const byte* in, word32 inSz, |
Vanger | 0:b86d15c6ba29 | 3520 | const byte* nonce, word32 nonceSz, |
Vanger | 0:b86d15c6ba29 | 3521 | const byte* authTag, word32 authTagSz, |
Vanger | 0:b86d15c6ba29 | 3522 | const byte* authIn, word32 authInSz) |
Vanger | 0:b86d15c6ba29 | 3523 | { |
Vanger | 0:b86d15c6ba29 | 3524 | byte A[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 3525 | byte B[AES_BLOCK_SIZE]; |
Vanger | 0:b86d15c6ba29 | 3526 | byte* o; |
Vanger | 0:b86d15c6ba29 | 3527 | byte lenSz; |
Vanger | 0:b86d15c6ba29 | 3528 | word32 i, oSz; |
Vanger | 0:b86d15c6ba29 | 3529 | int result = 0; |
Vanger | 0:b86d15c6ba29 | 3530 | |
Vanger | 0:b86d15c6ba29 | 3531 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3532 | byte* key = (byte*)aes->key; |
Vanger | 0:b86d15c6ba29 | 3533 | #endif |
Vanger | 0:b86d15c6ba29 | 3534 | |
Vanger | 0:b86d15c6ba29 | 3535 | o = out; |
Vanger | 0:b86d15c6ba29 | 3536 | oSz = inSz; |
Vanger | 0:b86d15c6ba29 | 3537 | XMEMCPY(B+1, nonce, nonceSz); |
Vanger | 0:b86d15c6ba29 | 3538 | lenSz = AES_BLOCK_SIZE - 1 - (byte)nonceSz; |
Vanger | 0:b86d15c6ba29 | 3539 | |
Vanger | 0:b86d15c6ba29 | 3540 | B[0] = lenSz - 1; |
Vanger | 0:b86d15c6ba29 | 3541 | for (i = 0; i < lenSz; i++) |
Vanger | 0:b86d15c6ba29 | 3542 | B[AES_BLOCK_SIZE - 1 - i] = 0; |
Vanger | 0:b86d15c6ba29 | 3543 | B[15] = 1; |
Vanger | 0:b86d15c6ba29 | 3544 | |
Vanger | 0:b86d15c6ba29 | 3545 | while (oSz >= AES_BLOCK_SIZE) { |
Vanger | 0:b86d15c6ba29 | 3546 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3547 | cau_aes_encrypt(B, key, aes->rounds, A); |
Vanger | 0:b86d15c6ba29 | 3548 | #else |
Vanger | 0:b86d15c6ba29 | 3549 | AesEncrypt(aes, B, A); |
Vanger | 0:b86d15c6ba29 | 3550 | #endif |
Vanger | 0:b86d15c6ba29 | 3551 | xorbuf(A, in, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3552 | XMEMCPY(o, A, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3553 | |
Vanger | 0:b86d15c6ba29 | 3554 | AesCcmCtrInc(B, lenSz); |
Vanger | 0:b86d15c6ba29 | 3555 | oSz -= AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3556 | in += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3557 | o += AES_BLOCK_SIZE; |
Vanger | 0:b86d15c6ba29 | 3558 | } |
Vanger | 0:b86d15c6ba29 | 3559 | if (inSz > 0) { |
Vanger | 0:b86d15c6ba29 | 3560 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3561 | cau_aes_encrypt(B, key, aes->rounds, A); |
Vanger | 0:b86d15c6ba29 | 3562 | #else |
Vanger | 0:b86d15c6ba29 | 3563 | AesEncrypt(aes, B, A); |
Vanger | 0:b86d15c6ba29 | 3564 | #endif |
Vanger | 0:b86d15c6ba29 | 3565 | xorbuf(A, in, oSz); |
Vanger | 0:b86d15c6ba29 | 3566 | XMEMCPY(o, A, oSz); |
Vanger | 0:b86d15c6ba29 | 3567 | } |
Vanger | 0:b86d15c6ba29 | 3568 | |
Vanger | 0:b86d15c6ba29 | 3569 | for (i = 0; i < lenSz; i++) |
Vanger | 0:b86d15c6ba29 | 3570 | B[AES_BLOCK_SIZE - 1 - i] = 0; |
Vanger | 0:b86d15c6ba29 | 3571 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3572 | cau_aes_encrypt(B, key, aes->rounds, A); |
Vanger | 0:b86d15c6ba29 | 3573 | #else |
Vanger | 0:b86d15c6ba29 | 3574 | AesEncrypt(aes, B, A); |
Vanger | 0:b86d15c6ba29 | 3575 | #endif |
Vanger | 0:b86d15c6ba29 | 3576 | |
Vanger | 0:b86d15c6ba29 | 3577 | o = out; |
Vanger | 0:b86d15c6ba29 | 3578 | oSz = inSz; |
Vanger | 0:b86d15c6ba29 | 3579 | |
Vanger | 0:b86d15c6ba29 | 3580 | B[0] = (authInSz > 0 ? 64 : 0) |
Vanger | 0:b86d15c6ba29 | 3581 | + (8 * (((byte)authTagSz - 2) / 2)) |
Vanger | 0:b86d15c6ba29 | 3582 | + (lenSz - 1); |
Vanger | 0:b86d15c6ba29 | 3583 | for (i = 0; i < lenSz; i++) |
Vanger | 0:b86d15c6ba29 | 3584 | B[AES_BLOCK_SIZE - 1 - i] = (inSz >> (8 * i)) & 0xFF; |
Vanger | 0:b86d15c6ba29 | 3585 | |
Vanger | 0:b86d15c6ba29 | 3586 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3587 | cau_aes_encrypt(B, key, aes->rounds, A); |
Vanger | 0:b86d15c6ba29 | 3588 | #else |
Vanger | 0:b86d15c6ba29 | 3589 | AesEncrypt(aes, B, A); |
Vanger | 0:b86d15c6ba29 | 3590 | #endif |
Vanger | 0:b86d15c6ba29 | 3591 | if (authInSz > 0) |
Vanger | 0:b86d15c6ba29 | 3592 | roll_auth(aes, authIn, authInSz, A); |
Vanger | 0:b86d15c6ba29 | 3593 | if (inSz > 0) |
Vanger | 0:b86d15c6ba29 | 3594 | roll_x(aes, o, oSz, A); |
Vanger | 0:b86d15c6ba29 | 3595 | |
Vanger | 0:b86d15c6ba29 | 3596 | B[0] = lenSz - 1; |
Vanger | 0:b86d15c6ba29 | 3597 | for (i = 0; i < lenSz; i++) |
Vanger | 0:b86d15c6ba29 | 3598 | B[AES_BLOCK_SIZE - 1 - i] = 0; |
Vanger | 0:b86d15c6ba29 | 3599 | #ifdef FREESCALE_MMCAU |
Vanger | 0:b86d15c6ba29 | 3600 | cau_aes_encrypt(B, key, aes->rounds, B); |
Vanger | 0:b86d15c6ba29 | 3601 | #else |
Vanger | 0:b86d15c6ba29 | 3602 | AesEncrypt(aes, B, B); |
Vanger | 0:b86d15c6ba29 | 3603 | #endif |
Vanger | 0:b86d15c6ba29 | 3604 | xorbuf(A, B, authTagSz); |
Vanger | 0:b86d15c6ba29 | 3605 | |
Vanger | 0:b86d15c6ba29 | 3606 | if (XMEMCMP(A, authTag, authTagSz) != 0) { |
Vanger | 0:b86d15c6ba29 | 3607 | /* If the authTag check fails, don't keep the decrypted data. |
Vanger | 0:b86d15c6ba29 | 3608 | * Unfortunately, you need the decrypted data to calculate the |
Vanger | 0:b86d15c6ba29 | 3609 | * check value. */ |
Vanger | 0:b86d15c6ba29 | 3610 | XMEMSET(out, 0, inSz); |
Vanger | 0:b86d15c6ba29 | 3611 | result = AES_CCM_AUTH_E; |
Vanger | 0:b86d15c6ba29 | 3612 | } |
Vanger | 0:b86d15c6ba29 | 3613 | |
Vanger | 0:b86d15c6ba29 | 3614 | XMEMSET(A, 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3615 | XMEMSET(B, 0, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3616 | o = NULL; |
Vanger | 0:b86d15c6ba29 | 3617 | |
Vanger | 0:b86d15c6ba29 | 3618 | return result; |
Vanger | 0:b86d15c6ba29 | 3619 | } |
Vanger | 0:b86d15c6ba29 | 3620 | |
Vanger | 0:b86d15c6ba29 | 3621 | #endif /* HAVE_AESCCM */ |
Vanger | 0:b86d15c6ba29 | 3622 | |
Vanger | 0:b86d15c6ba29 | 3623 | |
Vanger | 0:b86d15c6ba29 | 3624 | #ifdef HAVE_CAVIUM |
Vanger | 0:b86d15c6ba29 | 3625 | |
Vanger | 0:b86d15c6ba29 | 3626 | #include <cyassl/ctaocrypt/logging.h> |
Vanger | 0:b86d15c6ba29 | 3627 | #include "cavium_common.h" |
Vanger | 0:b86d15c6ba29 | 3628 | |
Vanger | 0:b86d15c6ba29 | 3629 | /* Initiliaze Aes for use with Nitrox device */ |
Vanger | 0:b86d15c6ba29 | 3630 | int AesInitCavium(Aes* aes, int devId) |
Vanger | 0:b86d15c6ba29 | 3631 | { |
Vanger | 0:b86d15c6ba29 | 3632 | if (aes == NULL) |
Vanger | 0:b86d15c6ba29 | 3633 | return -1; |
Vanger | 0:b86d15c6ba29 | 3634 | |
Vanger | 0:b86d15c6ba29 | 3635 | if (CspAllocContext(CONTEXT_SSL, &aes->contextHandle, devId) != 0) |
Vanger | 0:b86d15c6ba29 | 3636 | return -1; |
Vanger | 0:b86d15c6ba29 | 3637 | |
Vanger | 0:b86d15c6ba29 | 3638 | aes->devId = devId; |
Vanger | 0:b86d15c6ba29 | 3639 | aes->magic = CYASSL_AES_CAVIUM_MAGIC; |
Vanger | 0:b86d15c6ba29 | 3640 | |
Vanger | 0:b86d15c6ba29 | 3641 | return 0; |
Vanger | 0:b86d15c6ba29 | 3642 | } |
Vanger | 0:b86d15c6ba29 | 3643 | |
Vanger | 0:b86d15c6ba29 | 3644 | |
Vanger | 0:b86d15c6ba29 | 3645 | /* Free Aes from use with Nitrox device */ |
Vanger | 0:b86d15c6ba29 | 3646 | void AesFreeCavium(Aes* aes) |
Vanger | 0:b86d15c6ba29 | 3647 | { |
Vanger | 0:b86d15c6ba29 | 3648 | if (aes == NULL) |
Vanger | 0:b86d15c6ba29 | 3649 | return; |
Vanger | 0:b86d15c6ba29 | 3650 | |
Vanger | 0:b86d15c6ba29 | 3651 | if (aes->magic != CYASSL_AES_CAVIUM_MAGIC) |
Vanger | 0:b86d15c6ba29 | 3652 | return; |
Vanger | 0:b86d15c6ba29 | 3653 | |
Vanger | 0:b86d15c6ba29 | 3654 | CspFreeContext(CONTEXT_SSL, aes->contextHandle, aes->devId); |
Vanger | 0:b86d15c6ba29 | 3655 | aes->magic = 0; |
Vanger | 0:b86d15c6ba29 | 3656 | } |
Vanger | 0:b86d15c6ba29 | 3657 | |
Vanger | 0:b86d15c6ba29 | 3658 | |
Vanger | 0:b86d15c6ba29 | 3659 | static int AesCaviumSetKey(Aes* aes, const byte* key, word32 length, |
Vanger | 0:b86d15c6ba29 | 3660 | const byte* iv) |
Vanger | 0:b86d15c6ba29 | 3661 | { |
Vanger | 0:b86d15c6ba29 | 3662 | if (aes == NULL) |
Vanger | 0:b86d15c6ba29 | 3663 | return -1; |
Vanger | 0:b86d15c6ba29 | 3664 | |
Vanger | 0:b86d15c6ba29 | 3665 | XMEMCPY(aes->key, key, length); /* key still holds key, iv still in reg */ |
Vanger | 0:b86d15c6ba29 | 3666 | if (length == 16) |
Vanger | 0:b86d15c6ba29 | 3667 | aes->type = AES_128; |
Vanger | 0:b86d15c6ba29 | 3668 | else if (length == 24) |
Vanger | 0:b86d15c6ba29 | 3669 | aes->type = AES_192; |
Vanger | 0:b86d15c6ba29 | 3670 | else if (length == 32) |
Vanger | 0:b86d15c6ba29 | 3671 | aes->type = AES_256; |
Vanger | 0:b86d15c6ba29 | 3672 | |
Vanger | 0:b86d15c6ba29 | 3673 | return AesSetIV(aes, iv); |
Vanger | 0:b86d15c6ba29 | 3674 | } |
Vanger | 0:b86d15c6ba29 | 3675 | |
Vanger | 0:b86d15c6ba29 | 3676 | |
Vanger | 0:b86d15c6ba29 | 3677 | static int AesCaviumCbcEncrypt(Aes* aes, byte* out, const byte* in, |
Vanger | 0:b86d15c6ba29 | 3678 | word32 length) |
Vanger | 0:b86d15c6ba29 | 3679 | { |
Vanger | 0:b86d15c6ba29 | 3680 | cyassl_word offset = 0; |
Vanger | 0:b86d15c6ba29 | 3681 | word32 requestId; |
Vanger | 0:b86d15c6ba29 | 3682 | |
Vanger | 0:b86d15c6ba29 | 3683 | while (length > CYASSL_MAX_16BIT) { |
Vanger | 0:b86d15c6ba29 | 3684 | word16 slen = (word16)CYASSL_MAX_16BIT; |
Vanger | 0:b86d15c6ba29 | 3685 | if (CspEncryptAes(CAVIUM_BLOCKING, aes->contextHandle, CAVIUM_NO_UPDATE, |
Vanger | 0:b86d15c6ba29 | 3686 | aes->type, slen, (byte*)in + offset, out + offset, |
Vanger | 0:b86d15c6ba29 | 3687 | (byte*)aes->reg, (byte*)aes->key, &requestId, |
Vanger | 0:b86d15c6ba29 | 3688 | aes->devId) != 0) { |
Vanger | 0:b86d15c6ba29 | 3689 | CYASSL_MSG("Bad Cavium Aes Encrypt"); |
Vanger | 0:b86d15c6ba29 | 3690 | return -1; |
Vanger | 0:b86d15c6ba29 | 3691 | } |
Vanger | 0:b86d15c6ba29 | 3692 | length -= CYASSL_MAX_16BIT; |
Vanger | 0:b86d15c6ba29 | 3693 | offset += CYASSL_MAX_16BIT; |
Vanger | 0:b86d15c6ba29 | 3694 | XMEMCPY(aes->reg, out + offset - AES_BLOCK_SIZE, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3695 | } |
Vanger | 0:b86d15c6ba29 | 3696 | if (length) { |
Vanger | 0:b86d15c6ba29 | 3697 | word16 slen = (word16)length; |
Vanger | 0:b86d15c6ba29 | 3698 | if (CspEncryptAes(CAVIUM_BLOCKING, aes->contextHandle, CAVIUM_NO_UPDATE, |
Vanger | 0:b86d15c6ba29 | 3699 | aes->type, slen, (byte*)in + offset, out + offset, |
Vanger | 0:b86d15c6ba29 | 3700 | (byte*)aes->reg, (byte*)aes->key, &requestId, |
Vanger | 0:b86d15c6ba29 | 3701 | aes->devId) != 0) { |
Vanger | 0:b86d15c6ba29 | 3702 | CYASSL_MSG("Bad Cavium Aes Encrypt"); |
Vanger | 0:b86d15c6ba29 | 3703 | return -1; |
Vanger | 0:b86d15c6ba29 | 3704 | } |
Vanger | 0:b86d15c6ba29 | 3705 | XMEMCPY(aes->reg, out + offset+length - AES_BLOCK_SIZE, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3706 | } |
Vanger | 0:b86d15c6ba29 | 3707 | return 0; |
Vanger | 0:b86d15c6ba29 | 3708 | } |
Vanger | 0:b86d15c6ba29 | 3709 | |
Vanger | 0:b86d15c6ba29 | 3710 | static int AesCaviumCbcDecrypt(Aes* aes, byte* out, const byte* in, |
Vanger | 0:b86d15c6ba29 | 3711 | word32 length) |
Vanger | 0:b86d15c6ba29 | 3712 | { |
Vanger | 0:b86d15c6ba29 | 3713 | word32 requestId; |
Vanger | 0:b86d15c6ba29 | 3714 | cyassl_word offset = 0; |
Vanger | 0:b86d15c6ba29 | 3715 | |
Vanger | 0:b86d15c6ba29 | 3716 | while (length > CYASSL_MAX_16BIT) { |
Vanger | 0:b86d15c6ba29 | 3717 | word16 slen = (word16)CYASSL_MAX_16BIT; |
Vanger | 0:b86d15c6ba29 | 3718 | XMEMCPY(aes->tmp, in + offset + slen - AES_BLOCK_SIZE, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3719 | if (CspDecryptAes(CAVIUM_BLOCKING, aes->contextHandle, CAVIUM_NO_UPDATE, |
Vanger | 0:b86d15c6ba29 | 3720 | aes->type, slen, (byte*)in + offset, out + offset, |
Vanger | 0:b86d15c6ba29 | 3721 | (byte*)aes->reg, (byte*)aes->key, &requestId, |
Vanger | 0:b86d15c6ba29 | 3722 | aes->devId) != 0) { |
Vanger | 0:b86d15c6ba29 | 3723 | CYASSL_MSG("Bad Cavium Aes Decrypt"); |
Vanger | 0:b86d15c6ba29 | 3724 | return -1; |
Vanger | 0:b86d15c6ba29 | 3725 | } |
Vanger | 0:b86d15c6ba29 | 3726 | length -= CYASSL_MAX_16BIT; |
Vanger | 0:b86d15c6ba29 | 3727 | offset += CYASSL_MAX_16BIT; |
Vanger | 0:b86d15c6ba29 | 3728 | XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3729 | } |
Vanger | 0:b86d15c6ba29 | 3730 | if (length) { |
Vanger | 0:b86d15c6ba29 | 3731 | word16 slen = (word16)length; |
Vanger | 0:b86d15c6ba29 | 3732 | XMEMCPY(aes->tmp, in + offset + slen - AES_BLOCK_SIZE, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3733 | if (CspDecryptAes(CAVIUM_BLOCKING, aes->contextHandle, CAVIUM_NO_UPDATE, |
Vanger | 0:b86d15c6ba29 | 3734 | aes->type, slen, (byte*)in + offset, out + offset, |
Vanger | 0:b86d15c6ba29 | 3735 | (byte*)aes->reg, (byte*)aes->key, &requestId, |
Vanger | 0:b86d15c6ba29 | 3736 | aes->devId) != 0) { |
Vanger | 0:b86d15c6ba29 | 3737 | CYASSL_MSG("Bad Cavium Aes Decrypt"); |
Vanger | 0:b86d15c6ba29 | 3738 | return -1; |
Vanger | 0:b86d15c6ba29 | 3739 | } |
Vanger | 0:b86d15c6ba29 | 3740 | XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE); |
Vanger | 0:b86d15c6ba29 | 3741 | } |
Vanger | 0:b86d15c6ba29 | 3742 | return 0; |
Vanger | 0:b86d15c6ba29 | 3743 | } |
Vanger | 0:b86d15c6ba29 | 3744 | |
Vanger | 0:b86d15c6ba29 | 3745 | #endif /* HAVE_CAVIUM */ |
Vanger | 0:b86d15c6ba29 | 3746 | |
Vanger | 0:b86d15c6ba29 | 3747 | #endif /* NO_AES */ |
Vanger | 0:b86d15c6ba29 | 3748 |