takashi kadono
/
Nucleo446_SSD1331
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mbed-os/features/mbedtls/src/gcm.c@0:8fdf9a60065b, 2018-10-10 (annotated)
- Committer:
- kadonotakashi
- Date:
- Wed Oct 10 00:33:53 2018 +0000
- Revision:
- 0:8fdf9a60065b
how to make mbed librry
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| kadonotakashi | 0:8fdf9a60065b | 1 | /* |
| kadonotakashi | 0:8fdf9a60065b | 2 | * NIST SP800-38D compliant GCM implementation |
| kadonotakashi | 0:8fdf9a60065b | 3 | * |
| kadonotakashi | 0:8fdf9a60065b | 4 | * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved |
| kadonotakashi | 0:8fdf9a60065b | 5 | * SPDX-License-Identifier: Apache-2.0 |
| kadonotakashi | 0:8fdf9a60065b | 6 | * |
| kadonotakashi | 0:8fdf9a60065b | 7 | * Licensed under the Apache License, Version 2.0 (the "License"); you may |
| kadonotakashi | 0:8fdf9a60065b | 8 | * not use this file except in compliance with the License. |
| kadonotakashi | 0:8fdf9a60065b | 9 | * You may obtain a copy of the License at |
| kadonotakashi | 0:8fdf9a60065b | 10 | * |
| kadonotakashi | 0:8fdf9a60065b | 11 | * http://www.apache.org/licenses/LICENSE-2.0 |
| kadonotakashi | 0:8fdf9a60065b | 12 | * |
| kadonotakashi | 0:8fdf9a60065b | 13 | * Unless required by applicable law or agreed to in writing, software |
| kadonotakashi | 0:8fdf9a60065b | 14 | * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| kadonotakashi | 0:8fdf9a60065b | 15 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| kadonotakashi | 0:8fdf9a60065b | 16 | * See the License for the specific language governing permissions and |
| kadonotakashi | 0:8fdf9a60065b | 17 | * limitations under the License. |
| kadonotakashi | 0:8fdf9a60065b | 18 | * |
| kadonotakashi | 0:8fdf9a60065b | 19 | * This file is part of mbed TLS (https://tls.mbed.org) |
| kadonotakashi | 0:8fdf9a60065b | 20 | */ |
| kadonotakashi | 0:8fdf9a60065b | 21 | |
| kadonotakashi | 0:8fdf9a60065b | 22 | /* |
| kadonotakashi | 0:8fdf9a60065b | 23 | * http://csrc.nist.gov/publications/nistpubs/800-38D/SP-800-38D.pdf |
| kadonotakashi | 0:8fdf9a60065b | 24 | * |
| kadonotakashi | 0:8fdf9a60065b | 25 | * See also: |
| kadonotakashi | 0:8fdf9a60065b | 26 | * [MGV] http://csrc.nist.gov/groups/ST/toolkit/BCM/documents/proposedmodes/gcm/gcm-revised-spec.pdf |
| kadonotakashi | 0:8fdf9a60065b | 27 | * |
| kadonotakashi | 0:8fdf9a60065b | 28 | * We use the algorithm described as Shoup's method with 4-bit tables in |
| kadonotakashi | 0:8fdf9a60065b | 29 | * [MGV] 4.1, pp. 12-13, to enhance speed without using too much memory. |
| kadonotakashi | 0:8fdf9a60065b | 30 | */ |
| kadonotakashi | 0:8fdf9a60065b | 31 | |
| kadonotakashi | 0:8fdf9a60065b | 32 | #if !defined(MBEDTLS_CONFIG_FILE) |
| kadonotakashi | 0:8fdf9a60065b | 33 | #include "mbedtls/config.h" |
| kadonotakashi | 0:8fdf9a60065b | 34 | #else |
| kadonotakashi | 0:8fdf9a60065b | 35 | #include MBEDTLS_CONFIG_FILE |
| kadonotakashi | 0:8fdf9a60065b | 36 | #endif |
| kadonotakashi | 0:8fdf9a60065b | 37 | |
| kadonotakashi | 0:8fdf9a60065b | 38 | #if defined(MBEDTLS_GCM_C) |
| kadonotakashi | 0:8fdf9a60065b | 39 | |
| kadonotakashi | 0:8fdf9a60065b | 40 | #include "mbedtls/gcm.h" |
| kadonotakashi | 0:8fdf9a60065b | 41 | #include "mbedtls/platform_util.h" |
| kadonotakashi | 0:8fdf9a60065b | 42 | |
| kadonotakashi | 0:8fdf9a60065b | 43 | #include <string.h> |
| kadonotakashi | 0:8fdf9a60065b | 44 | |
| kadonotakashi | 0:8fdf9a60065b | 45 | #if defined(MBEDTLS_AESNI_C) |
| kadonotakashi | 0:8fdf9a60065b | 46 | #include "mbedtls/aesni.h" |
| kadonotakashi | 0:8fdf9a60065b | 47 | #endif |
| kadonotakashi | 0:8fdf9a60065b | 48 | |
| kadonotakashi | 0:8fdf9a60065b | 49 | #if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C) |
| kadonotakashi | 0:8fdf9a60065b | 50 | #include "mbedtls/aes.h" |
| kadonotakashi | 0:8fdf9a60065b | 51 | #if defined(MBEDTLS_PLATFORM_C) |
| kadonotakashi | 0:8fdf9a60065b | 52 | #include "mbedtls/platform.h" |
| kadonotakashi | 0:8fdf9a60065b | 53 | #else |
| kadonotakashi | 0:8fdf9a60065b | 54 | #include <stdio.h> |
| kadonotakashi | 0:8fdf9a60065b | 55 | #define mbedtls_printf printf |
| kadonotakashi | 0:8fdf9a60065b | 56 | #endif /* MBEDTLS_PLATFORM_C */ |
| kadonotakashi | 0:8fdf9a60065b | 57 | #endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */ |
| kadonotakashi | 0:8fdf9a60065b | 58 | |
| kadonotakashi | 0:8fdf9a60065b | 59 | #if !defined(MBEDTLS_GCM_ALT) |
| kadonotakashi | 0:8fdf9a60065b | 60 | |
| kadonotakashi | 0:8fdf9a60065b | 61 | /* |
| kadonotakashi | 0:8fdf9a60065b | 62 | * 32-bit integer manipulation macros (big endian) |
| kadonotakashi | 0:8fdf9a60065b | 63 | */ |
| kadonotakashi | 0:8fdf9a60065b | 64 | #ifndef GET_UINT32_BE |
| kadonotakashi | 0:8fdf9a60065b | 65 | #define GET_UINT32_BE(n,b,i) \ |
| kadonotakashi | 0:8fdf9a60065b | 66 | { \ |
| kadonotakashi | 0:8fdf9a60065b | 67 | (n) = ( (uint32_t) (b)[(i) ] << 24 ) \ |
| kadonotakashi | 0:8fdf9a60065b | 68 | | ( (uint32_t) (b)[(i) + 1] << 16 ) \ |
| kadonotakashi | 0:8fdf9a60065b | 69 | | ( (uint32_t) (b)[(i) + 2] << 8 ) \ |
| kadonotakashi | 0:8fdf9a60065b | 70 | | ( (uint32_t) (b)[(i) + 3] ); \ |
| kadonotakashi | 0:8fdf9a60065b | 71 | } |
| kadonotakashi | 0:8fdf9a60065b | 72 | #endif |
| kadonotakashi | 0:8fdf9a60065b | 73 | |
| kadonotakashi | 0:8fdf9a60065b | 74 | #ifndef PUT_UINT32_BE |
| kadonotakashi | 0:8fdf9a60065b | 75 | #define PUT_UINT32_BE(n,b,i) \ |
| kadonotakashi | 0:8fdf9a60065b | 76 | { \ |
| kadonotakashi | 0:8fdf9a60065b | 77 | (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \ |
| kadonotakashi | 0:8fdf9a60065b | 78 | (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \ |
| kadonotakashi | 0:8fdf9a60065b | 79 | (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \ |
| kadonotakashi | 0:8fdf9a60065b | 80 | (b)[(i) + 3] = (unsigned char) ( (n) ); \ |
| kadonotakashi | 0:8fdf9a60065b | 81 | } |
| kadonotakashi | 0:8fdf9a60065b | 82 | #endif |
| kadonotakashi | 0:8fdf9a60065b | 83 | |
| kadonotakashi | 0:8fdf9a60065b | 84 | /* |
| kadonotakashi | 0:8fdf9a60065b | 85 | * Initialize a context |
| kadonotakashi | 0:8fdf9a60065b | 86 | */ |
| kadonotakashi | 0:8fdf9a60065b | 87 | void mbedtls_gcm_init( mbedtls_gcm_context *ctx ) |
| kadonotakashi | 0:8fdf9a60065b | 88 | { |
| kadonotakashi | 0:8fdf9a60065b | 89 | memset( ctx, 0, sizeof( mbedtls_gcm_context ) ); |
| kadonotakashi | 0:8fdf9a60065b | 90 | } |
| kadonotakashi | 0:8fdf9a60065b | 91 | |
| kadonotakashi | 0:8fdf9a60065b | 92 | /* |
| kadonotakashi | 0:8fdf9a60065b | 93 | * Precompute small multiples of H, that is set |
| kadonotakashi | 0:8fdf9a60065b | 94 | * HH[i] || HL[i] = H times i, |
| kadonotakashi | 0:8fdf9a60065b | 95 | * where i is seen as a field element as in [MGV], ie high-order bits |
| kadonotakashi | 0:8fdf9a60065b | 96 | * correspond to low powers of P. The result is stored in the same way, that |
| kadonotakashi | 0:8fdf9a60065b | 97 | * is the high-order bit of HH corresponds to P^0 and the low-order bit of HL |
| kadonotakashi | 0:8fdf9a60065b | 98 | * corresponds to P^127. |
| kadonotakashi | 0:8fdf9a60065b | 99 | */ |
| kadonotakashi | 0:8fdf9a60065b | 100 | static int gcm_gen_table( mbedtls_gcm_context *ctx ) |
| kadonotakashi | 0:8fdf9a60065b | 101 | { |
| kadonotakashi | 0:8fdf9a60065b | 102 | int ret, i, j; |
| kadonotakashi | 0:8fdf9a60065b | 103 | uint64_t hi, lo; |
| kadonotakashi | 0:8fdf9a60065b | 104 | uint64_t vl, vh; |
| kadonotakashi | 0:8fdf9a60065b | 105 | unsigned char h[16]; |
| kadonotakashi | 0:8fdf9a60065b | 106 | size_t olen = 0; |
| kadonotakashi | 0:8fdf9a60065b | 107 | |
| kadonotakashi | 0:8fdf9a60065b | 108 | memset( h, 0, 16 ); |
| kadonotakashi | 0:8fdf9a60065b | 109 | if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, h, 16, h, &olen ) ) != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 110 | return( ret ); |
| kadonotakashi | 0:8fdf9a60065b | 111 | |
| kadonotakashi | 0:8fdf9a60065b | 112 | /* pack h as two 64-bits ints, big-endian */ |
| kadonotakashi | 0:8fdf9a60065b | 113 | GET_UINT32_BE( hi, h, 0 ); |
| kadonotakashi | 0:8fdf9a60065b | 114 | GET_UINT32_BE( lo, h, 4 ); |
| kadonotakashi | 0:8fdf9a60065b | 115 | vh = (uint64_t) hi << 32 | lo; |
| kadonotakashi | 0:8fdf9a60065b | 116 | |
| kadonotakashi | 0:8fdf9a60065b | 117 | GET_UINT32_BE( hi, h, 8 ); |
| kadonotakashi | 0:8fdf9a60065b | 118 | GET_UINT32_BE( lo, h, 12 ); |
| kadonotakashi | 0:8fdf9a60065b | 119 | vl = (uint64_t) hi << 32 | lo; |
| kadonotakashi | 0:8fdf9a60065b | 120 | |
| kadonotakashi | 0:8fdf9a60065b | 121 | /* 8 = 1000 corresponds to 1 in GF(2^128) */ |
| kadonotakashi | 0:8fdf9a60065b | 122 | ctx->HL[8] = vl; |
| kadonotakashi | 0:8fdf9a60065b | 123 | ctx->HH[8] = vh; |
| kadonotakashi | 0:8fdf9a60065b | 124 | |
| kadonotakashi | 0:8fdf9a60065b | 125 | #if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64) |
| kadonotakashi | 0:8fdf9a60065b | 126 | /* With CLMUL support, we need only h, not the rest of the table */ |
| kadonotakashi | 0:8fdf9a60065b | 127 | if( mbedtls_aesni_has_support( MBEDTLS_AESNI_CLMUL ) ) |
| kadonotakashi | 0:8fdf9a60065b | 128 | return( 0 ); |
| kadonotakashi | 0:8fdf9a60065b | 129 | #endif |
| kadonotakashi | 0:8fdf9a60065b | 130 | |
| kadonotakashi | 0:8fdf9a60065b | 131 | /* 0 corresponds to 0 in GF(2^128) */ |
| kadonotakashi | 0:8fdf9a60065b | 132 | ctx->HH[0] = 0; |
| kadonotakashi | 0:8fdf9a60065b | 133 | ctx->HL[0] = 0; |
| kadonotakashi | 0:8fdf9a60065b | 134 | |
| kadonotakashi | 0:8fdf9a60065b | 135 | for( i = 4; i > 0; i >>= 1 ) |
| kadonotakashi | 0:8fdf9a60065b | 136 | { |
| kadonotakashi | 0:8fdf9a60065b | 137 | uint32_t T = ( vl & 1 ) * 0xe1000000U; |
| kadonotakashi | 0:8fdf9a60065b | 138 | vl = ( vh << 63 ) | ( vl >> 1 ); |
| kadonotakashi | 0:8fdf9a60065b | 139 | vh = ( vh >> 1 ) ^ ( (uint64_t) T << 32); |
| kadonotakashi | 0:8fdf9a60065b | 140 | |
| kadonotakashi | 0:8fdf9a60065b | 141 | ctx->HL[i] = vl; |
| kadonotakashi | 0:8fdf9a60065b | 142 | ctx->HH[i] = vh; |
| kadonotakashi | 0:8fdf9a60065b | 143 | } |
| kadonotakashi | 0:8fdf9a60065b | 144 | |
| kadonotakashi | 0:8fdf9a60065b | 145 | for( i = 2; i <= 8; i *= 2 ) |
| kadonotakashi | 0:8fdf9a60065b | 146 | { |
| kadonotakashi | 0:8fdf9a60065b | 147 | uint64_t *HiL = ctx->HL + i, *HiH = ctx->HH + i; |
| kadonotakashi | 0:8fdf9a60065b | 148 | vh = *HiH; |
| kadonotakashi | 0:8fdf9a60065b | 149 | vl = *HiL; |
| kadonotakashi | 0:8fdf9a60065b | 150 | for( j = 1; j < i; j++ ) |
| kadonotakashi | 0:8fdf9a60065b | 151 | { |
| kadonotakashi | 0:8fdf9a60065b | 152 | HiH[j] = vh ^ ctx->HH[j]; |
| kadonotakashi | 0:8fdf9a60065b | 153 | HiL[j] = vl ^ ctx->HL[j]; |
| kadonotakashi | 0:8fdf9a60065b | 154 | } |
| kadonotakashi | 0:8fdf9a60065b | 155 | } |
| kadonotakashi | 0:8fdf9a60065b | 156 | |
| kadonotakashi | 0:8fdf9a60065b | 157 | return( 0 ); |
| kadonotakashi | 0:8fdf9a60065b | 158 | } |
| kadonotakashi | 0:8fdf9a60065b | 159 | |
| kadonotakashi | 0:8fdf9a60065b | 160 | int mbedtls_gcm_setkey( mbedtls_gcm_context *ctx, |
| kadonotakashi | 0:8fdf9a60065b | 161 | mbedtls_cipher_id_t cipher, |
| kadonotakashi | 0:8fdf9a60065b | 162 | const unsigned char *key, |
| kadonotakashi | 0:8fdf9a60065b | 163 | unsigned int keybits ) |
| kadonotakashi | 0:8fdf9a60065b | 164 | { |
| kadonotakashi | 0:8fdf9a60065b | 165 | int ret; |
| kadonotakashi | 0:8fdf9a60065b | 166 | const mbedtls_cipher_info_t *cipher_info; |
| kadonotakashi | 0:8fdf9a60065b | 167 | |
| kadonotakashi | 0:8fdf9a60065b | 168 | cipher_info = mbedtls_cipher_info_from_values( cipher, keybits, MBEDTLS_MODE_ECB ); |
| kadonotakashi | 0:8fdf9a60065b | 169 | if( cipher_info == NULL ) |
| kadonotakashi | 0:8fdf9a60065b | 170 | return( MBEDTLS_ERR_GCM_BAD_INPUT ); |
| kadonotakashi | 0:8fdf9a60065b | 171 | |
| kadonotakashi | 0:8fdf9a60065b | 172 | if( cipher_info->block_size != 16 ) |
| kadonotakashi | 0:8fdf9a60065b | 173 | return( MBEDTLS_ERR_GCM_BAD_INPUT ); |
| kadonotakashi | 0:8fdf9a60065b | 174 | |
| kadonotakashi | 0:8fdf9a60065b | 175 | mbedtls_cipher_free( &ctx->cipher_ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 176 | |
| kadonotakashi | 0:8fdf9a60065b | 177 | if( ( ret = mbedtls_cipher_setup( &ctx->cipher_ctx, cipher_info ) ) != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 178 | return( ret ); |
| kadonotakashi | 0:8fdf9a60065b | 179 | |
| kadonotakashi | 0:8fdf9a60065b | 180 | if( ( ret = mbedtls_cipher_setkey( &ctx->cipher_ctx, key, keybits, |
| kadonotakashi | 0:8fdf9a60065b | 181 | MBEDTLS_ENCRYPT ) ) != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 182 | { |
| kadonotakashi | 0:8fdf9a60065b | 183 | return( ret ); |
| kadonotakashi | 0:8fdf9a60065b | 184 | } |
| kadonotakashi | 0:8fdf9a60065b | 185 | |
| kadonotakashi | 0:8fdf9a60065b | 186 | if( ( ret = gcm_gen_table( ctx ) ) != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 187 | return( ret ); |
| kadonotakashi | 0:8fdf9a60065b | 188 | |
| kadonotakashi | 0:8fdf9a60065b | 189 | return( 0 ); |
| kadonotakashi | 0:8fdf9a60065b | 190 | } |
| kadonotakashi | 0:8fdf9a60065b | 191 | |
| kadonotakashi | 0:8fdf9a60065b | 192 | /* |
| kadonotakashi | 0:8fdf9a60065b | 193 | * Shoup's method for multiplication use this table with |
| kadonotakashi | 0:8fdf9a60065b | 194 | * last4[x] = x times P^128 |
| kadonotakashi | 0:8fdf9a60065b | 195 | * where x and last4[x] are seen as elements of GF(2^128) as in [MGV] |
| kadonotakashi | 0:8fdf9a60065b | 196 | */ |
| kadonotakashi | 0:8fdf9a60065b | 197 | static const uint64_t last4[16] = |
| kadonotakashi | 0:8fdf9a60065b | 198 | { |
| kadonotakashi | 0:8fdf9a60065b | 199 | 0x0000, 0x1c20, 0x3840, 0x2460, |
| kadonotakashi | 0:8fdf9a60065b | 200 | 0x7080, 0x6ca0, 0x48c0, 0x54e0, |
| kadonotakashi | 0:8fdf9a60065b | 201 | 0xe100, 0xfd20, 0xd940, 0xc560, |
| kadonotakashi | 0:8fdf9a60065b | 202 | 0x9180, 0x8da0, 0xa9c0, 0xb5e0 |
| kadonotakashi | 0:8fdf9a60065b | 203 | }; |
| kadonotakashi | 0:8fdf9a60065b | 204 | |
| kadonotakashi | 0:8fdf9a60065b | 205 | /* |
| kadonotakashi | 0:8fdf9a60065b | 206 | * Sets output to x times H using the precomputed tables. |
| kadonotakashi | 0:8fdf9a60065b | 207 | * x and output are seen as elements of GF(2^128) as in [MGV]. |
| kadonotakashi | 0:8fdf9a60065b | 208 | */ |
| kadonotakashi | 0:8fdf9a60065b | 209 | static void gcm_mult( mbedtls_gcm_context *ctx, const unsigned char x[16], |
| kadonotakashi | 0:8fdf9a60065b | 210 | unsigned char output[16] ) |
| kadonotakashi | 0:8fdf9a60065b | 211 | { |
| kadonotakashi | 0:8fdf9a60065b | 212 | int i = 0; |
| kadonotakashi | 0:8fdf9a60065b | 213 | unsigned char lo, hi, rem; |
| kadonotakashi | 0:8fdf9a60065b | 214 | uint64_t zh, zl; |
| kadonotakashi | 0:8fdf9a60065b | 215 | |
| kadonotakashi | 0:8fdf9a60065b | 216 | #if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64) |
| kadonotakashi | 0:8fdf9a60065b | 217 | if( mbedtls_aesni_has_support( MBEDTLS_AESNI_CLMUL ) ) { |
| kadonotakashi | 0:8fdf9a60065b | 218 | unsigned char h[16]; |
| kadonotakashi | 0:8fdf9a60065b | 219 | |
| kadonotakashi | 0:8fdf9a60065b | 220 | PUT_UINT32_BE( ctx->HH[8] >> 32, h, 0 ); |
| kadonotakashi | 0:8fdf9a60065b | 221 | PUT_UINT32_BE( ctx->HH[8], h, 4 ); |
| kadonotakashi | 0:8fdf9a60065b | 222 | PUT_UINT32_BE( ctx->HL[8] >> 32, h, 8 ); |
| kadonotakashi | 0:8fdf9a60065b | 223 | PUT_UINT32_BE( ctx->HL[8], h, 12 ); |
| kadonotakashi | 0:8fdf9a60065b | 224 | |
| kadonotakashi | 0:8fdf9a60065b | 225 | mbedtls_aesni_gcm_mult( output, x, h ); |
| kadonotakashi | 0:8fdf9a60065b | 226 | return; |
| kadonotakashi | 0:8fdf9a60065b | 227 | } |
| kadonotakashi | 0:8fdf9a60065b | 228 | #endif /* MBEDTLS_AESNI_C && MBEDTLS_HAVE_X86_64 */ |
| kadonotakashi | 0:8fdf9a60065b | 229 | |
| kadonotakashi | 0:8fdf9a60065b | 230 | lo = x[15] & 0xf; |
| kadonotakashi | 0:8fdf9a60065b | 231 | |
| kadonotakashi | 0:8fdf9a60065b | 232 | zh = ctx->HH[lo]; |
| kadonotakashi | 0:8fdf9a60065b | 233 | zl = ctx->HL[lo]; |
| kadonotakashi | 0:8fdf9a60065b | 234 | |
| kadonotakashi | 0:8fdf9a60065b | 235 | for( i = 15; i >= 0; i-- ) |
| kadonotakashi | 0:8fdf9a60065b | 236 | { |
| kadonotakashi | 0:8fdf9a60065b | 237 | lo = x[i] & 0xf; |
| kadonotakashi | 0:8fdf9a60065b | 238 | hi = x[i] >> 4; |
| kadonotakashi | 0:8fdf9a60065b | 239 | |
| kadonotakashi | 0:8fdf9a60065b | 240 | if( i != 15 ) |
| kadonotakashi | 0:8fdf9a60065b | 241 | { |
| kadonotakashi | 0:8fdf9a60065b | 242 | rem = (unsigned char) zl & 0xf; |
| kadonotakashi | 0:8fdf9a60065b | 243 | zl = ( zh << 60 ) | ( zl >> 4 ); |
| kadonotakashi | 0:8fdf9a60065b | 244 | zh = ( zh >> 4 ); |
| kadonotakashi | 0:8fdf9a60065b | 245 | zh ^= (uint64_t) last4[rem] << 48; |
| kadonotakashi | 0:8fdf9a60065b | 246 | zh ^= ctx->HH[lo]; |
| kadonotakashi | 0:8fdf9a60065b | 247 | zl ^= ctx->HL[lo]; |
| kadonotakashi | 0:8fdf9a60065b | 248 | |
| kadonotakashi | 0:8fdf9a60065b | 249 | } |
| kadonotakashi | 0:8fdf9a60065b | 250 | |
| kadonotakashi | 0:8fdf9a60065b | 251 | rem = (unsigned char) zl & 0xf; |
| kadonotakashi | 0:8fdf9a60065b | 252 | zl = ( zh << 60 ) | ( zl >> 4 ); |
| kadonotakashi | 0:8fdf9a60065b | 253 | zh = ( zh >> 4 ); |
| kadonotakashi | 0:8fdf9a60065b | 254 | zh ^= (uint64_t) last4[rem] << 48; |
| kadonotakashi | 0:8fdf9a60065b | 255 | zh ^= ctx->HH[hi]; |
| kadonotakashi | 0:8fdf9a60065b | 256 | zl ^= ctx->HL[hi]; |
| kadonotakashi | 0:8fdf9a60065b | 257 | } |
| kadonotakashi | 0:8fdf9a60065b | 258 | |
| kadonotakashi | 0:8fdf9a60065b | 259 | PUT_UINT32_BE( zh >> 32, output, 0 ); |
| kadonotakashi | 0:8fdf9a60065b | 260 | PUT_UINT32_BE( zh, output, 4 ); |
| kadonotakashi | 0:8fdf9a60065b | 261 | PUT_UINT32_BE( zl >> 32, output, 8 ); |
| kadonotakashi | 0:8fdf9a60065b | 262 | PUT_UINT32_BE( zl, output, 12 ); |
| kadonotakashi | 0:8fdf9a60065b | 263 | } |
| kadonotakashi | 0:8fdf9a60065b | 264 | |
| kadonotakashi | 0:8fdf9a60065b | 265 | int mbedtls_gcm_starts( mbedtls_gcm_context *ctx, |
| kadonotakashi | 0:8fdf9a60065b | 266 | int mode, |
| kadonotakashi | 0:8fdf9a60065b | 267 | const unsigned char *iv, |
| kadonotakashi | 0:8fdf9a60065b | 268 | size_t iv_len, |
| kadonotakashi | 0:8fdf9a60065b | 269 | const unsigned char *add, |
| kadonotakashi | 0:8fdf9a60065b | 270 | size_t add_len ) |
| kadonotakashi | 0:8fdf9a60065b | 271 | { |
| kadonotakashi | 0:8fdf9a60065b | 272 | int ret; |
| kadonotakashi | 0:8fdf9a60065b | 273 | unsigned char work_buf[16]; |
| kadonotakashi | 0:8fdf9a60065b | 274 | size_t i; |
| kadonotakashi | 0:8fdf9a60065b | 275 | const unsigned char *p; |
| kadonotakashi | 0:8fdf9a60065b | 276 | size_t use_len, olen = 0; |
| kadonotakashi | 0:8fdf9a60065b | 277 | |
| kadonotakashi | 0:8fdf9a60065b | 278 | /* IV and AD are limited to 2^64 bits, so 2^61 bytes */ |
| kadonotakashi | 0:8fdf9a60065b | 279 | /* IV is not allowed to be zero length */ |
| kadonotakashi | 0:8fdf9a60065b | 280 | if( iv_len == 0 || |
| kadonotakashi | 0:8fdf9a60065b | 281 | ( (uint64_t) iv_len ) >> 61 != 0 || |
| kadonotakashi | 0:8fdf9a60065b | 282 | ( (uint64_t) add_len ) >> 61 != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 283 | { |
| kadonotakashi | 0:8fdf9a60065b | 284 | return( MBEDTLS_ERR_GCM_BAD_INPUT ); |
| kadonotakashi | 0:8fdf9a60065b | 285 | } |
| kadonotakashi | 0:8fdf9a60065b | 286 | |
| kadonotakashi | 0:8fdf9a60065b | 287 | memset( ctx->y, 0x00, sizeof(ctx->y) ); |
| kadonotakashi | 0:8fdf9a60065b | 288 | memset( ctx->buf, 0x00, sizeof(ctx->buf) ); |
| kadonotakashi | 0:8fdf9a60065b | 289 | |
| kadonotakashi | 0:8fdf9a60065b | 290 | ctx->mode = mode; |
| kadonotakashi | 0:8fdf9a60065b | 291 | ctx->len = 0; |
| kadonotakashi | 0:8fdf9a60065b | 292 | ctx->add_len = 0; |
| kadonotakashi | 0:8fdf9a60065b | 293 | |
| kadonotakashi | 0:8fdf9a60065b | 294 | if( iv_len == 12 ) |
| kadonotakashi | 0:8fdf9a60065b | 295 | { |
| kadonotakashi | 0:8fdf9a60065b | 296 | memcpy( ctx->y, iv, iv_len ); |
| kadonotakashi | 0:8fdf9a60065b | 297 | ctx->y[15] = 1; |
| kadonotakashi | 0:8fdf9a60065b | 298 | } |
| kadonotakashi | 0:8fdf9a60065b | 299 | else |
| kadonotakashi | 0:8fdf9a60065b | 300 | { |
| kadonotakashi | 0:8fdf9a60065b | 301 | memset( work_buf, 0x00, 16 ); |
| kadonotakashi | 0:8fdf9a60065b | 302 | PUT_UINT32_BE( iv_len * 8, work_buf, 12 ); |
| kadonotakashi | 0:8fdf9a60065b | 303 | |
| kadonotakashi | 0:8fdf9a60065b | 304 | p = iv; |
| kadonotakashi | 0:8fdf9a60065b | 305 | while( iv_len > 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 306 | { |
| kadonotakashi | 0:8fdf9a60065b | 307 | use_len = ( iv_len < 16 ) ? iv_len : 16; |
| kadonotakashi | 0:8fdf9a60065b | 308 | |
| kadonotakashi | 0:8fdf9a60065b | 309 | for( i = 0; i < use_len; i++ ) |
| kadonotakashi | 0:8fdf9a60065b | 310 | ctx->y[i] ^= p[i]; |
| kadonotakashi | 0:8fdf9a60065b | 311 | |
| kadonotakashi | 0:8fdf9a60065b | 312 | gcm_mult( ctx, ctx->y, ctx->y ); |
| kadonotakashi | 0:8fdf9a60065b | 313 | |
| kadonotakashi | 0:8fdf9a60065b | 314 | iv_len -= use_len; |
| kadonotakashi | 0:8fdf9a60065b | 315 | p += use_len; |
| kadonotakashi | 0:8fdf9a60065b | 316 | } |
| kadonotakashi | 0:8fdf9a60065b | 317 | |
| kadonotakashi | 0:8fdf9a60065b | 318 | for( i = 0; i < 16; i++ ) |
| kadonotakashi | 0:8fdf9a60065b | 319 | ctx->y[i] ^= work_buf[i]; |
| kadonotakashi | 0:8fdf9a60065b | 320 | |
| kadonotakashi | 0:8fdf9a60065b | 321 | gcm_mult( ctx, ctx->y, ctx->y ); |
| kadonotakashi | 0:8fdf9a60065b | 322 | } |
| kadonotakashi | 0:8fdf9a60065b | 323 | |
| kadonotakashi | 0:8fdf9a60065b | 324 | if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, ctx->y, 16, ctx->base_ectr, |
| kadonotakashi | 0:8fdf9a60065b | 325 | &olen ) ) != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 326 | { |
| kadonotakashi | 0:8fdf9a60065b | 327 | return( ret ); |
| kadonotakashi | 0:8fdf9a60065b | 328 | } |
| kadonotakashi | 0:8fdf9a60065b | 329 | |
| kadonotakashi | 0:8fdf9a60065b | 330 | ctx->add_len = add_len; |
| kadonotakashi | 0:8fdf9a60065b | 331 | p = add; |
| kadonotakashi | 0:8fdf9a60065b | 332 | while( add_len > 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 333 | { |
| kadonotakashi | 0:8fdf9a60065b | 334 | use_len = ( add_len < 16 ) ? add_len : 16; |
| kadonotakashi | 0:8fdf9a60065b | 335 | |
| kadonotakashi | 0:8fdf9a60065b | 336 | for( i = 0; i < use_len; i++ ) |
| kadonotakashi | 0:8fdf9a60065b | 337 | ctx->buf[i] ^= p[i]; |
| kadonotakashi | 0:8fdf9a60065b | 338 | |
| kadonotakashi | 0:8fdf9a60065b | 339 | gcm_mult( ctx, ctx->buf, ctx->buf ); |
| kadonotakashi | 0:8fdf9a60065b | 340 | |
| kadonotakashi | 0:8fdf9a60065b | 341 | add_len -= use_len; |
| kadonotakashi | 0:8fdf9a60065b | 342 | p += use_len; |
| kadonotakashi | 0:8fdf9a60065b | 343 | } |
| kadonotakashi | 0:8fdf9a60065b | 344 | |
| kadonotakashi | 0:8fdf9a60065b | 345 | return( 0 ); |
| kadonotakashi | 0:8fdf9a60065b | 346 | } |
| kadonotakashi | 0:8fdf9a60065b | 347 | |
| kadonotakashi | 0:8fdf9a60065b | 348 | int mbedtls_gcm_update( mbedtls_gcm_context *ctx, |
| kadonotakashi | 0:8fdf9a60065b | 349 | size_t length, |
| kadonotakashi | 0:8fdf9a60065b | 350 | const unsigned char *input, |
| kadonotakashi | 0:8fdf9a60065b | 351 | unsigned char *output ) |
| kadonotakashi | 0:8fdf9a60065b | 352 | { |
| kadonotakashi | 0:8fdf9a60065b | 353 | int ret; |
| kadonotakashi | 0:8fdf9a60065b | 354 | unsigned char ectr[16]; |
| kadonotakashi | 0:8fdf9a60065b | 355 | size_t i; |
| kadonotakashi | 0:8fdf9a60065b | 356 | const unsigned char *p; |
| kadonotakashi | 0:8fdf9a60065b | 357 | unsigned char *out_p = output; |
| kadonotakashi | 0:8fdf9a60065b | 358 | size_t use_len, olen = 0; |
| kadonotakashi | 0:8fdf9a60065b | 359 | |
| kadonotakashi | 0:8fdf9a60065b | 360 | if( output > input && (size_t) ( output - input ) < length ) |
| kadonotakashi | 0:8fdf9a60065b | 361 | return( MBEDTLS_ERR_GCM_BAD_INPUT ); |
| kadonotakashi | 0:8fdf9a60065b | 362 | |
| kadonotakashi | 0:8fdf9a60065b | 363 | /* Total length is restricted to 2^39 - 256 bits, ie 2^36 - 2^5 bytes |
| kadonotakashi | 0:8fdf9a60065b | 364 | * Also check for possible overflow */ |
| kadonotakashi | 0:8fdf9a60065b | 365 | if( ctx->len + length < ctx->len || |
| kadonotakashi | 0:8fdf9a60065b | 366 | (uint64_t) ctx->len + length > 0xFFFFFFFE0ull ) |
| kadonotakashi | 0:8fdf9a60065b | 367 | { |
| kadonotakashi | 0:8fdf9a60065b | 368 | return( MBEDTLS_ERR_GCM_BAD_INPUT ); |
| kadonotakashi | 0:8fdf9a60065b | 369 | } |
| kadonotakashi | 0:8fdf9a60065b | 370 | |
| kadonotakashi | 0:8fdf9a60065b | 371 | ctx->len += length; |
| kadonotakashi | 0:8fdf9a60065b | 372 | |
| kadonotakashi | 0:8fdf9a60065b | 373 | p = input; |
| kadonotakashi | 0:8fdf9a60065b | 374 | while( length > 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 375 | { |
| kadonotakashi | 0:8fdf9a60065b | 376 | use_len = ( length < 16 ) ? length : 16; |
| kadonotakashi | 0:8fdf9a60065b | 377 | |
| kadonotakashi | 0:8fdf9a60065b | 378 | for( i = 16; i > 12; i-- ) |
| kadonotakashi | 0:8fdf9a60065b | 379 | if( ++ctx->y[i - 1] != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 380 | break; |
| kadonotakashi | 0:8fdf9a60065b | 381 | |
| kadonotakashi | 0:8fdf9a60065b | 382 | if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, ctx->y, 16, ectr, |
| kadonotakashi | 0:8fdf9a60065b | 383 | &olen ) ) != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 384 | { |
| kadonotakashi | 0:8fdf9a60065b | 385 | return( ret ); |
| kadonotakashi | 0:8fdf9a60065b | 386 | } |
| kadonotakashi | 0:8fdf9a60065b | 387 | |
| kadonotakashi | 0:8fdf9a60065b | 388 | for( i = 0; i < use_len; i++ ) |
| kadonotakashi | 0:8fdf9a60065b | 389 | { |
| kadonotakashi | 0:8fdf9a60065b | 390 | if( ctx->mode == MBEDTLS_GCM_DECRYPT ) |
| kadonotakashi | 0:8fdf9a60065b | 391 | ctx->buf[i] ^= p[i]; |
| kadonotakashi | 0:8fdf9a60065b | 392 | out_p[i] = ectr[i] ^ p[i]; |
| kadonotakashi | 0:8fdf9a60065b | 393 | if( ctx->mode == MBEDTLS_GCM_ENCRYPT ) |
| kadonotakashi | 0:8fdf9a60065b | 394 | ctx->buf[i] ^= out_p[i]; |
| kadonotakashi | 0:8fdf9a60065b | 395 | } |
| kadonotakashi | 0:8fdf9a60065b | 396 | |
| kadonotakashi | 0:8fdf9a60065b | 397 | gcm_mult( ctx, ctx->buf, ctx->buf ); |
| kadonotakashi | 0:8fdf9a60065b | 398 | |
| kadonotakashi | 0:8fdf9a60065b | 399 | length -= use_len; |
| kadonotakashi | 0:8fdf9a60065b | 400 | p += use_len; |
| kadonotakashi | 0:8fdf9a60065b | 401 | out_p += use_len; |
| kadonotakashi | 0:8fdf9a60065b | 402 | } |
| kadonotakashi | 0:8fdf9a60065b | 403 | |
| kadonotakashi | 0:8fdf9a60065b | 404 | return( 0 ); |
| kadonotakashi | 0:8fdf9a60065b | 405 | } |
| kadonotakashi | 0:8fdf9a60065b | 406 | |
| kadonotakashi | 0:8fdf9a60065b | 407 | int mbedtls_gcm_finish( mbedtls_gcm_context *ctx, |
| kadonotakashi | 0:8fdf9a60065b | 408 | unsigned char *tag, |
| kadonotakashi | 0:8fdf9a60065b | 409 | size_t tag_len ) |
| kadonotakashi | 0:8fdf9a60065b | 410 | { |
| kadonotakashi | 0:8fdf9a60065b | 411 | unsigned char work_buf[16]; |
| kadonotakashi | 0:8fdf9a60065b | 412 | size_t i; |
| kadonotakashi | 0:8fdf9a60065b | 413 | uint64_t orig_len = ctx->len * 8; |
| kadonotakashi | 0:8fdf9a60065b | 414 | uint64_t orig_add_len = ctx->add_len * 8; |
| kadonotakashi | 0:8fdf9a60065b | 415 | |
| kadonotakashi | 0:8fdf9a60065b | 416 | if( tag_len > 16 || tag_len < 4 ) |
| kadonotakashi | 0:8fdf9a60065b | 417 | return( MBEDTLS_ERR_GCM_BAD_INPUT ); |
| kadonotakashi | 0:8fdf9a60065b | 418 | |
| kadonotakashi | 0:8fdf9a60065b | 419 | memcpy( tag, ctx->base_ectr, tag_len ); |
| kadonotakashi | 0:8fdf9a60065b | 420 | |
| kadonotakashi | 0:8fdf9a60065b | 421 | if( orig_len || orig_add_len ) |
| kadonotakashi | 0:8fdf9a60065b | 422 | { |
| kadonotakashi | 0:8fdf9a60065b | 423 | memset( work_buf, 0x00, 16 ); |
| kadonotakashi | 0:8fdf9a60065b | 424 | |
| kadonotakashi | 0:8fdf9a60065b | 425 | PUT_UINT32_BE( ( orig_add_len >> 32 ), work_buf, 0 ); |
| kadonotakashi | 0:8fdf9a60065b | 426 | PUT_UINT32_BE( ( orig_add_len ), work_buf, 4 ); |
| kadonotakashi | 0:8fdf9a60065b | 427 | PUT_UINT32_BE( ( orig_len >> 32 ), work_buf, 8 ); |
| kadonotakashi | 0:8fdf9a60065b | 428 | PUT_UINT32_BE( ( orig_len ), work_buf, 12 ); |
| kadonotakashi | 0:8fdf9a60065b | 429 | |
| kadonotakashi | 0:8fdf9a60065b | 430 | for( i = 0; i < 16; i++ ) |
| kadonotakashi | 0:8fdf9a60065b | 431 | ctx->buf[i] ^= work_buf[i]; |
| kadonotakashi | 0:8fdf9a60065b | 432 | |
| kadonotakashi | 0:8fdf9a60065b | 433 | gcm_mult( ctx, ctx->buf, ctx->buf ); |
| kadonotakashi | 0:8fdf9a60065b | 434 | |
| kadonotakashi | 0:8fdf9a60065b | 435 | for( i = 0; i < tag_len; i++ ) |
| kadonotakashi | 0:8fdf9a60065b | 436 | tag[i] ^= ctx->buf[i]; |
| kadonotakashi | 0:8fdf9a60065b | 437 | } |
| kadonotakashi | 0:8fdf9a60065b | 438 | |
| kadonotakashi | 0:8fdf9a60065b | 439 | return( 0 ); |
| kadonotakashi | 0:8fdf9a60065b | 440 | } |
| kadonotakashi | 0:8fdf9a60065b | 441 | |
| kadonotakashi | 0:8fdf9a60065b | 442 | int mbedtls_gcm_crypt_and_tag( mbedtls_gcm_context *ctx, |
| kadonotakashi | 0:8fdf9a60065b | 443 | int mode, |
| kadonotakashi | 0:8fdf9a60065b | 444 | size_t length, |
| kadonotakashi | 0:8fdf9a60065b | 445 | const unsigned char *iv, |
| kadonotakashi | 0:8fdf9a60065b | 446 | size_t iv_len, |
| kadonotakashi | 0:8fdf9a60065b | 447 | const unsigned char *add, |
| kadonotakashi | 0:8fdf9a60065b | 448 | size_t add_len, |
| kadonotakashi | 0:8fdf9a60065b | 449 | const unsigned char *input, |
| kadonotakashi | 0:8fdf9a60065b | 450 | unsigned char *output, |
| kadonotakashi | 0:8fdf9a60065b | 451 | size_t tag_len, |
| kadonotakashi | 0:8fdf9a60065b | 452 | unsigned char *tag ) |
| kadonotakashi | 0:8fdf9a60065b | 453 | { |
| kadonotakashi | 0:8fdf9a60065b | 454 | int ret; |
| kadonotakashi | 0:8fdf9a60065b | 455 | |
| kadonotakashi | 0:8fdf9a60065b | 456 | if( ( ret = mbedtls_gcm_starts( ctx, mode, iv, iv_len, add, add_len ) ) != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 457 | return( ret ); |
| kadonotakashi | 0:8fdf9a60065b | 458 | |
| kadonotakashi | 0:8fdf9a60065b | 459 | if( ( ret = mbedtls_gcm_update( ctx, length, input, output ) ) != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 460 | return( ret ); |
| kadonotakashi | 0:8fdf9a60065b | 461 | |
| kadonotakashi | 0:8fdf9a60065b | 462 | if( ( ret = mbedtls_gcm_finish( ctx, tag, tag_len ) ) != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 463 | return( ret ); |
| kadonotakashi | 0:8fdf9a60065b | 464 | |
| kadonotakashi | 0:8fdf9a60065b | 465 | return( 0 ); |
| kadonotakashi | 0:8fdf9a60065b | 466 | } |
| kadonotakashi | 0:8fdf9a60065b | 467 | |
| kadonotakashi | 0:8fdf9a60065b | 468 | int mbedtls_gcm_auth_decrypt( mbedtls_gcm_context *ctx, |
| kadonotakashi | 0:8fdf9a60065b | 469 | size_t length, |
| kadonotakashi | 0:8fdf9a60065b | 470 | const unsigned char *iv, |
| kadonotakashi | 0:8fdf9a60065b | 471 | size_t iv_len, |
| kadonotakashi | 0:8fdf9a60065b | 472 | const unsigned char *add, |
| kadonotakashi | 0:8fdf9a60065b | 473 | size_t add_len, |
| kadonotakashi | 0:8fdf9a60065b | 474 | const unsigned char *tag, |
| kadonotakashi | 0:8fdf9a60065b | 475 | size_t tag_len, |
| kadonotakashi | 0:8fdf9a60065b | 476 | const unsigned char *input, |
| kadonotakashi | 0:8fdf9a60065b | 477 | unsigned char *output ) |
| kadonotakashi | 0:8fdf9a60065b | 478 | { |
| kadonotakashi | 0:8fdf9a60065b | 479 | int ret; |
| kadonotakashi | 0:8fdf9a60065b | 480 | unsigned char check_tag[16]; |
| kadonotakashi | 0:8fdf9a60065b | 481 | size_t i; |
| kadonotakashi | 0:8fdf9a60065b | 482 | int diff; |
| kadonotakashi | 0:8fdf9a60065b | 483 | |
| kadonotakashi | 0:8fdf9a60065b | 484 | if( ( ret = mbedtls_gcm_crypt_and_tag( ctx, MBEDTLS_GCM_DECRYPT, length, |
| kadonotakashi | 0:8fdf9a60065b | 485 | iv, iv_len, add, add_len, |
| kadonotakashi | 0:8fdf9a60065b | 486 | input, output, tag_len, check_tag ) ) != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 487 | { |
| kadonotakashi | 0:8fdf9a60065b | 488 | return( ret ); |
| kadonotakashi | 0:8fdf9a60065b | 489 | } |
| kadonotakashi | 0:8fdf9a60065b | 490 | |
| kadonotakashi | 0:8fdf9a60065b | 491 | /* Check tag in "constant-time" */ |
| kadonotakashi | 0:8fdf9a60065b | 492 | for( diff = 0, i = 0; i < tag_len; i++ ) |
| kadonotakashi | 0:8fdf9a60065b | 493 | diff |= tag[i] ^ check_tag[i]; |
| kadonotakashi | 0:8fdf9a60065b | 494 | |
| kadonotakashi | 0:8fdf9a60065b | 495 | if( diff != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 496 | { |
| kadonotakashi | 0:8fdf9a60065b | 497 | mbedtls_platform_zeroize( output, length ); |
| kadonotakashi | 0:8fdf9a60065b | 498 | return( MBEDTLS_ERR_GCM_AUTH_FAILED ); |
| kadonotakashi | 0:8fdf9a60065b | 499 | } |
| kadonotakashi | 0:8fdf9a60065b | 500 | |
| kadonotakashi | 0:8fdf9a60065b | 501 | return( 0 ); |
| kadonotakashi | 0:8fdf9a60065b | 502 | } |
| kadonotakashi | 0:8fdf9a60065b | 503 | |
| kadonotakashi | 0:8fdf9a60065b | 504 | void mbedtls_gcm_free( mbedtls_gcm_context *ctx ) |
| kadonotakashi | 0:8fdf9a60065b | 505 | { |
| kadonotakashi | 0:8fdf9a60065b | 506 | mbedtls_cipher_free( &ctx->cipher_ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 507 | mbedtls_platform_zeroize( ctx, sizeof( mbedtls_gcm_context ) ); |
| kadonotakashi | 0:8fdf9a60065b | 508 | } |
| kadonotakashi | 0:8fdf9a60065b | 509 | |
| kadonotakashi | 0:8fdf9a60065b | 510 | #endif /* !MBEDTLS_GCM_ALT */ |
| kadonotakashi | 0:8fdf9a60065b | 511 | |
| kadonotakashi | 0:8fdf9a60065b | 512 | #if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C) |
| kadonotakashi | 0:8fdf9a60065b | 513 | /* |
| kadonotakashi | 0:8fdf9a60065b | 514 | * AES-GCM test vectors from: |
| kadonotakashi | 0:8fdf9a60065b | 515 | * |
| kadonotakashi | 0:8fdf9a60065b | 516 | * http://csrc.nist.gov/groups/STM/cavp/documents/mac/gcmtestvectors.zip |
| kadonotakashi | 0:8fdf9a60065b | 517 | */ |
| kadonotakashi | 0:8fdf9a60065b | 518 | #define MAX_TESTS 6 |
| kadonotakashi | 0:8fdf9a60065b | 519 | |
| kadonotakashi | 0:8fdf9a60065b | 520 | static const int key_index[MAX_TESTS] = |
| kadonotakashi | 0:8fdf9a60065b | 521 | { 0, 0, 1, 1, 1, 1 }; |
| kadonotakashi | 0:8fdf9a60065b | 522 | |
| kadonotakashi | 0:8fdf9a60065b | 523 | static const unsigned char key[MAX_TESTS][32] = |
| kadonotakashi | 0:8fdf9a60065b | 524 | { |
| kadonotakashi | 0:8fdf9a60065b | 525 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| kadonotakashi | 0:8fdf9a60065b | 526 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| kadonotakashi | 0:8fdf9a60065b | 527 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| kadonotakashi | 0:8fdf9a60065b | 528 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, |
| kadonotakashi | 0:8fdf9a60065b | 529 | { 0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c, |
| kadonotakashi | 0:8fdf9a60065b | 530 | 0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08, |
| kadonotakashi | 0:8fdf9a60065b | 531 | 0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c, |
| kadonotakashi | 0:8fdf9a60065b | 532 | 0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08 }, |
| kadonotakashi | 0:8fdf9a60065b | 533 | }; |
| kadonotakashi | 0:8fdf9a60065b | 534 | |
| kadonotakashi | 0:8fdf9a60065b | 535 | static const size_t iv_len[MAX_TESTS] = |
| kadonotakashi | 0:8fdf9a60065b | 536 | { 12, 12, 12, 12, 8, 60 }; |
| kadonotakashi | 0:8fdf9a60065b | 537 | |
| kadonotakashi | 0:8fdf9a60065b | 538 | static const int iv_index[MAX_TESTS] = |
| kadonotakashi | 0:8fdf9a60065b | 539 | { 0, 0, 1, 1, 1, 2 }; |
| kadonotakashi | 0:8fdf9a60065b | 540 | |
| kadonotakashi | 0:8fdf9a60065b | 541 | static const unsigned char iv[MAX_TESTS][64] = |
| kadonotakashi | 0:8fdf9a60065b | 542 | { |
| kadonotakashi | 0:8fdf9a60065b | 543 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| kadonotakashi | 0:8fdf9a60065b | 544 | 0x00, 0x00, 0x00, 0x00 }, |
| kadonotakashi | 0:8fdf9a60065b | 545 | { 0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad, |
| kadonotakashi | 0:8fdf9a60065b | 546 | 0xde, 0xca, 0xf8, 0x88 }, |
| kadonotakashi | 0:8fdf9a60065b | 547 | { 0x93, 0x13, 0x22, 0x5d, 0xf8, 0x84, 0x06, 0xe5, |
| kadonotakashi | 0:8fdf9a60065b | 548 | 0x55, 0x90, 0x9c, 0x5a, 0xff, 0x52, 0x69, 0xaa, |
| kadonotakashi | 0:8fdf9a60065b | 549 | 0x6a, 0x7a, 0x95, 0x38, 0x53, 0x4f, 0x7d, 0xa1, |
| kadonotakashi | 0:8fdf9a60065b | 550 | 0xe4, 0xc3, 0x03, 0xd2, 0xa3, 0x18, 0xa7, 0x28, |
| kadonotakashi | 0:8fdf9a60065b | 551 | 0xc3, 0xc0, 0xc9, 0x51, 0x56, 0x80, 0x95, 0x39, |
| kadonotakashi | 0:8fdf9a60065b | 552 | 0xfc, 0xf0, 0xe2, 0x42, 0x9a, 0x6b, 0x52, 0x54, |
| kadonotakashi | 0:8fdf9a60065b | 553 | 0x16, 0xae, 0xdb, 0xf5, 0xa0, 0xde, 0x6a, 0x57, |
| kadonotakashi | 0:8fdf9a60065b | 554 | 0xa6, 0x37, 0xb3, 0x9b }, |
| kadonotakashi | 0:8fdf9a60065b | 555 | }; |
| kadonotakashi | 0:8fdf9a60065b | 556 | |
| kadonotakashi | 0:8fdf9a60065b | 557 | static const size_t add_len[MAX_TESTS] = |
| kadonotakashi | 0:8fdf9a60065b | 558 | { 0, 0, 0, 20, 20, 20 }; |
| kadonotakashi | 0:8fdf9a60065b | 559 | |
| kadonotakashi | 0:8fdf9a60065b | 560 | static const int add_index[MAX_TESTS] = |
| kadonotakashi | 0:8fdf9a60065b | 561 | { 0, 0, 0, 1, 1, 1 }; |
| kadonotakashi | 0:8fdf9a60065b | 562 | |
| kadonotakashi | 0:8fdf9a60065b | 563 | static const unsigned char additional[MAX_TESTS][64] = |
| kadonotakashi | 0:8fdf9a60065b | 564 | { |
| kadonotakashi | 0:8fdf9a60065b | 565 | { 0x00 }, |
| kadonotakashi | 0:8fdf9a60065b | 566 | { 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef, |
| kadonotakashi | 0:8fdf9a60065b | 567 | 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef, |
| kadonotakashi | 0:8fdf9a60065b | 568 | 0xab, 0xad, 0xda, 0xd2 }, |
| kadonotakashi | 0:8fdf9a60065b | 569 | }; |
| kadonotakashi | 0:8fdf9a60065b | 570 | |
| kadonotakashi | 0:8fdf9a60065b | 571 | static const size_t pt_len[MAX_TESTS] = |
| kadonotakashi | 0:8fdf9a60065b | 572 | { 0, 16, 64, 60, 60, 60 }; |
| kadonotakashi | 0:8fdf9a60065b | 573 | |
| kadonotakashi | 0:8fdf9a60065b | 574 | static const int pt_index[MAX_TESTS] = |
| kadonotakashi | 0:8fdf9a60065b | 575 | { 0, 0, 1, 1, 1, 1 }; |
| kadonotakashi | 0:8fdf9a60065b | 576 | |
| kadonotakashi | 0:8fdf9a60065b | 577 | static const unsigned char pt[MAX_TESTS][64] = |
| kadonotakashi | 0:8fdf9a60065b | 578 | { |
| kadonotakashi | 0:8fdf9a60065b | 579 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| kadonotakashi | 0:8fdf9a60065b | 580 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, |
| kadonotakashi | 0:8fdf9a60065b | 581 | { 0xd9, 0x31, 0x32, 0x25, 0xf8, 0x84, 0x06, 0xe5, |
| kadonotakashi | 0:8fdf9a60065b | 582 | 0xa5, 0x59, 0x09, 0xc5, 0xaf, 0xf5, 0x26, 0x9a, |
| kadonotakashi | 0:8fdf9a60065b | 583 | 0x86, 0xa7, 0xa9, 0x53, 0x15, 0x34, 0xf7, 0xda, |
| kadonotakashi | 0:8fdf9a60065b | 584 | 0x2e, 0x4c, 0x30, 0x3d, 0x8a, 0x31, 0x8a, 0x72, |
| kadonotakashi | 0:8fdf9a60065b | 585 | 0x1c, 0x3c, 0x0c, 0x95, 0x95, 0x68, 0x09, 0x53, |
| kadonotakashi | 0:8fdf9a60065b | 586 | 0x2f, 0xcf, 0x0e, 0x24, 0x49, 0xa6, 0xb5, 0x25, |
| kadonotakashi | 0:8fdf9a60065b | 587 | 0xb1, 0x6a, 0xed, 0xf5, 0xaa, 0x0d, 0xe6, 0x57, |
| kadonotakashi | 0:8fdf9a60065b | 588 | 0xba, 0x63, 0x7b, 0x39, 0x1a, 0xaf, 0xd2, 0x55 }, |
| kadonotakashi | 0:8fdf9a60065b | 589 | }; |
| kadonotakashi | 0:8fdf9a60065b | 590 | |
| kadonotakashi | 0:8fdf9a60065b | 591 | static const unsigned char ct[MAX_TESTS * 3][64] = |
| kadonotakashi | 0:8fdf9a60065b | 592 | { |
| kadonotakashi | 0:8fdf9a60065b | 593 | { 0x00 }, |
| kadonotakashi | 0:8fdf9a60065b | 594 | { 0x03, 0x88, 0xda, 0xce, 0x60, 0xb6, 0xa3, 0x92, |
| kadonotakashi | 0:8fdf9a60065b | 595 | 0xf3, 0x28, 0xc2, 0xb9, 0x71, 0xb2, 0xfe, 0x78 }, |
| kadonotakashi | 0:8fdf9a60065b | 596 | { 0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24, |
| kadonotakashi | 0:8fdf9a60065b | 597 | 0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c, |
| kadonotakashi | 0:8fdf9a60065b | 598 | 0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0, |
| kadonotakashi | 0:8fdf9a60065b | 599 | 0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e, |
| kadonotakashi | 0:8fdf9a60065b | 600 | 0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c, |
| kadonotakashi | 0:8fdf9a60065b | 601 | 0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05, |
| kadonotakashi | 0:8fdf9a60065b | 602 | 0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97, |
| kadonotakashi | 0:8fdf9a60065b | 603 | 0x3d, 0x58, 0xe0, 0x91, 0x47, 0x3f, 0x59, 0x85 }, |
| kadonotakashi | 0:8fdf9a60065b | 604 | { 0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24, |
| kadonotakashi | 0:8fdf9a60065b | 605 | 0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c, |
| kadonotakashi | 0:8fdf9a60065b | 606 | 0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0, |
| kadonotakashi | 0:8fdf9a60065b | 607 | 0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e, |
| kadonotakashi | 0:8fdf9a60065b | 608 | 0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c, |
| kadonotakashi | 0:8fdf9a60065b | 609 | 0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05, |
| kadonotakashi | 0:8fdf9a60065b | 610 | 0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97, |
| kadonotakashi | 0:8fdf9a60065b | 611 | 0x3d, 0x58, 0xe0, 0x91 }, |
| kadonotakashi | 0:8fdf9a60065b | 612 | { 0x61, 0x35, 0x3b, 0x4c, 0x28, 0x06, 0x93, 0x4a, |
| kadonotakashi | 0:8fdf9a60065b | 613 | 0x77, 0x7f, 0xf5, 0x1f, 0xa2, 0x2a, 0x47, 0x55, |
| kadonotakashi | 0:8fdf9a60065b | 614 | 0x69, 0x9b, 0x2a, 0x71, 0x4f, 0xcd, 0xc6, 0xf8, |
| kadonotakashi | 0:8fdf9a60065b | 615 | 0x37, 0x66, 0xe5, 0xf9, 0x7b, 0x6c, 0x74, 0x23, |
| kadonotakashi | 0:8fdf9a60065b | 616 | 0x73, 0x80, 0x69, 0x00, 0xe4, 0x9f, 0x24, 0xb2, |
| kadonotakashi | 0:8fdf9a60065b | 617 | 0x2b, 0x09, 0x75, 0x44, 0xd4, 0x89, 0x6b, 0x42, |
| kadonotakashi | 0:8fdf9a60065b | 618 | 0x49, 0x89, 0xb5, 0xe1, 0xeb, 0xac, 0x0f, 0x07, |
| kadonotakashi | 0:8fdf9a60065b | 619 | 0xc2, 0x3f, 0x45, 0x98 }, |
| kadonotakashi | 0:8fdf9a60065b | 620 | { 0x8c, 0xe2, 0x49, 0x98, 0x62, 0x56, 0x15, 0xb6, |
| kadonotakashi | 0:8fdf9a60065b | 621 | 0x03, 0xa0, 0x33, 0xac, 0xa1, 0x3f, 0xb8, 0x94, |
| kadonotakashi | 0:8fdf9a60065b | 622 | 0xbe, 0x91, 0x12, 0xa5, 0xc3, 0xa2, 0x11, 0xa8, |
| kadonotakashi | 0:8fdf9a60065b | 623 | 0xba, 0x26, 0x2a, 0x3c, 0xca, 0x7e, 0x2c, 0xa7, |
| kadonotakashi | 0:8fdf9a60065b | 624 | 0x01, 0xe4, 0xa9, 0xa4, 0xfb, 0xa4, 0x3c, 0x90, |
| kadonotakashi | 0:8fdf9a60065b | 625 | 0xcc, 0xdc, 0xb2, 0x81, 0xd4, 0x8c, 0x7c, 0x6f, |
| kadonotakashi | 0:8fdf9a60065b | 626 | 0xd6, 0x28, 0x75, 0xd2, 0xac, 0xa4, 0x17, 0x03, |
| kadonotakashi | 0:8fdf9a60065b | 627 | 0x4c, 0x34, 0xae, 0xe5 }, |
| kadonotakashi | 0:8fdf9a60065b | 628 | { 0x00 }, |
| kadonotakashi | 0:8fdf9a60065b | 629 | { 0x98, 0xe7, 0x24, 0x7c, 0x07, 0xf0, 0xfe, 0x41, |
| kadonotakashi | 0:8fdf9a60065b | 630 | 0x1c, 0x26, 0x7e, 0x43, 0x84, 0xb0, 0xf6, 0x00 }, |
| kadonotakashi | 0:8fdf9a60065b | 631 | { 0x39, 0x80, 0xca, 0x0b, 0x3c, 0x00, 0xe8, 0x41, |
| kadonotakashi | 0:8fdf9a60065b | 632 | 0xeb, 0x06, 0xfa, 0xc4, 0x87, 0x2a, 0x27, 0x57, |
| kadonotakashi | 0:8fdf9a60065b | 633 | 0x85, 0x9e, 0x1c, 0xea, 0xa6, 0xef, 0xd9, 0x84, |
| kadonotakashi | 0:8fdf9a60065b | 634 | 0x62, 0x85, 0x93, 0xb4, 0x0c, 0xa1, 0xe1, 0x9c, |
| kadonotakashi | 0:8fdf9a60065b | 635 | 0x7d, 0x77, 0x3d, 0x00, 0xc1, 0x44, 0xc5, 0x25, |
| kadonotakashi | 0:8fdf9a60065b | 636 | 0xac, 0x61, 0x9d, 0x18, 0xc8, 0x4a, 0x3f, 0x47, |
| kadonotakashi | 0:8fdf9a60065b | 637 | 0x18, 0xe2, 0x44, 0x8b, 0x2f, 0xe3, 0x24, 0xd9, |
| kadonotakashi | 0:8fdf9a60065b | 638 | 0xcc, 0xda, 0x27, 0x10, 0xac, 0xad, 0xe2, 0x56 }, |
| kadonotakashi | 0:8fdf9a60065b | 639 | { 0x39, 0x80, 0xca, 0x0b, 0x3c, 0x00, 0xe8, 0x41, |
| kadonotakashi | 0:8fdf9a60065b | 640 | 0xeb, 0x06, 0xfa, 0xc4, 0x87, 0x2a, 0x27, 0x57, |
| kadonotakashi | 0:8fdf9a60065b | 641 | 0x85, 0x9e, 0x1c, 0xea, 0xa6, 0xef, 0xd9, 0x84, |
| kadonotakashi | 0:8fdf9a60065b | 642 | 0x62, 0x85, 0x93, 0xb4, 0x0c, 0xa1, 0xe1, 0x9c, |
| kadonotakashi | 0:8fdf9a60065b | 643 | 0x7d, 0x77, 0x3d, 0x00, 0xc1, 0x44, 0xc5, 0x25, |
| kadonotakashi | 0:8fdf9a60065b | 644 | 0xac, 0x61, 0x9d, 0x18, 0xc8, 0x4a, 0x3f, 0x47, |
| kadonotakashi | 0:8fdf9a60065b | 645 | 0x18, 0xe2, 0x44, 0x8b, 0x2f, 0xe3, 0x24, 0xd9, |
| kadonotakashi | 0:8fdf9a60065b | 646 | 0xcc, 0xda, 0x27, 0x10 }, |
| kadonotakashi | 0:8fdf9a60065b | 647 | { 0x0f, 0x10, 0xf5, 0x99, 0xae, 0x14, 0xa1, 0x54, |
| kadonotakashi | 0:8fdf9a60065b | 648 | 0xed, 0x24, 0xb3, 0x6e, 0x25, 0x32, 0x4d, 0xb8, |
| kadonotakashi | 0:8fdf9a60065b | 649 | 0xc5, 0x66, 0x63, 0x2e, 0xf2, 0xbb, 0xb3, 0x4f, |
| kadonotakashi | 0:8fdf9a60065b | 650 | 0x83, 0x47, 0x28, 0x0f, 0xc4, 0x50, 0x70, 0x57, |
| kadonotakashi | 0:8fdf9a60065b | 651 | 0xfd, 0xdc, 0x29, 0xdf, 0x9a, 0x47, 0x1f, 0x75, |
| kadonotakashi | 0:8fdf9a60065b | 652 | 0xc6, 0x65, 0x41, 0xd4, 0xd4, 0xda, 0xd1, 0xc9, |
| kadonotakashi | 0:8fdf9a60065b | 653 | 0xe9, 0x3a, 0x19, 0xa5, 0x8e, 0x8b, 0x47, 0x3f, |
| kadonotakashi | 0:8fdf9a60065b | 654 | 0xa0, 0xf0, 0x62, 0xf7 }, |
| kadonotakashi | 0:8fdf9a60065b | 655 | { 0xd2, 0x7e, 0x88, 0x68, 0x1c, 0xe3, 0x24, 0x3c, |
| kadonotakashi | 0:8fdf9a60065b | 656 | 0x48, 0x30, 0x16, 0x5a, 0x8f, 0xdc, 0xf9, 0xff, |
| kadonotakashi | 0:8fdf9a60065b | 657 | 0x1d, 0xe9, 0xa1, 0xd8, 0xe6, 0xb4, 0x47, 0xef, |
| kadonotakashi | 0:8fdf9a60065b | 658 | 0x6e, 0xf7, 0xb7, 0x98, 0x28, 0x66, 0x6e, 0x45, |
| kadonotakashi | 0:8fdf9a60065b | 659 | 0x81, 0xe7, 0x90, 0x12, 0xaf, 0x34, 0xdd, 0xd9, |
| kadonotakashi | 0:8fdf9a60065b | 660 | 0xe2, 0xf0, 0x37, 0x58, 0x9b, 0x29, 0x2d, 0xb3, |
| kadonotakashi | 0:8fdf9a60065b | 661 | 0xe6, 0x7c, 0x03, 0x67, 0x45, 0xfa, 0x22, 0xe7, |
| kadonotakashi | 0:8fdf9a60065b | 662 | 0xe9, 0xb7, 0x37, 0x3b }, |
| kadonotakashi | 0:8fdf9a60065b | 663 | { 0x00 }, |
| kadonotakashi | 0:8fdf9a60065b | 664 | { 0xce, 0xa7, 0x40, 0x3d, 0x4d, 0x60, 0x6b, 0x6e, |
| kadonotakashi | 0:8fdf9a60065b | 665 | 0x07, 0x4e, 0xc5, 0xd3, 0xba, 0xf3, 0x9d, 0x18 }, |
| kadonotakashi | 0:8fdf9a60065b | 666 | { 0x52, 0x2d, 0xc1, 0xf0, 0x99, 0x56, 0x7d, 0x07, |
| kadonotakashi | 0:8fdf9a60065b | 667 | 0xf4, 0x7f, 0x37, 0xa3, 0x2a, 0x84, 0x42, 0x7d, |
| kadonotakashi | 0:8fdf9a60065b | 668 | 0x64, 0x3a, 0x8c, 0xdc, 0xbf, 0xe5, 0xc0, 0xc9, |
| kadonotakashi | 0:8fdf9a60065b | 669 | 0x75, 0x98, 0xa2, 0xbd, 0x25, 0x55, 0xd1, 0xaa, |
| kadonotakashi | 0:8fdf9a60065b | 670 | 0x8c, 0xb0, 0x8e, 0x48, 0x59, 0x0d, 0xbb, 0x3d, |
| kadonotakashi | 0:8fdf9a60065b | 671 | 0xa7, 0xb0, 0x8b, 0x10, 0x56, 0x82, 0x88, 0x38, |
| kadonotakashi | 0:8fdf9a60065b | 672 | 0xc5, 0xf6, 0x1e, 0x63, 0x93, 0xba, 0x7a, 0x0a, |
| kadonotakashi | 0:8fdf9a60065b | 673 | 0xbc, 0xc9, 0xf6, 0x62, 0x89, 0x80, 0x15, 0xad }, |
| kadonotakashi | 0:8fdf9a60065b | 674 | { 0x52, 0x2d, 0xc1, 0xf0, 0x99, 0x56, 0x7d, 0x07, |
| kadonotakashi | 0:8fdf9a60065b | 675 | 0xf4, 0x7f, 0x37, 0xa3, 0x2a, 0x84, 0x42, 0x7d, |
| kadonotakashi | 0:8fdf9a60065b | 676 | 0x64, 0x3a, 0x8c, 0xdc, 0xbf, 0xe5, 0xc0, 0xc9, |
| kadonotakashi | 0:8fdf9a60065b | 677 | 0x75, 0x98, 0xa2, 0xbd, 0x25, 0x55, 0xd1, 0xaa, |
| kadonotakashi | 0:8fdf9a60065b | 678 | 0x8c, 0xb0, 0x8e, 0x48, 0x59, 0x0d, 0xbb, 0x3d, |
| kadonotakashi | 0:8fdf9a60065b | 679 | 0xa7, 0xb0, 0x8b, 0x10, 0x56, 0x82, 0x88, 0x38, |
| kadonotakashi | 0:8fdf9a60065b | 680 | 0xc5, 0xf6, 0x1e, 0x63, 0x93, 0xba, 0x7a, 0x0a, |
| kadonotakashi | 0:8fdf9a60065b | 681 | 0xbc, 0xc9, 0xf6, 0x62 }, |
| kadonotakashi | 0:8fdf9a60065b | 682 | { 0xc3, 0x76, 0x2d, 0xf1, 0xca, 0x78, 0x7d, 0x32, |
| kadonotakashi | 0:8fdf9a60065b | 683 | 0xae, 0x47, 0xc1, 0x3b, 0xf1, 0x98, 0x44, 0xcb, |
| kadonotakashi | 0:8fdf9a60065b | 684 | 0xaf, 0x1a, 0xe1, 0x4d, 0x0b, 0x97, 0x6a, 0xfa, |
| kadonotakashi | 0:8fdf9a60065b | 685 | 0xc5, 0x2f, 0xf7, 0xd7, 0x9b, 0xba, 0x9d, 0xe0, |
| kadonotakashi | 0:8fdf9a60065b | 686 | 0xfe, 0xb5, 0x82, 0xd3, 0x39, 0x34, 0xa4, 0xf0, |
| kadonotakashi | 0:8fdf9a60065b | 687 | 0x95, 0x4c, 0xc2, 0x36, 0x3b, 0xc7, 0x3f, 0x78, |
| kadonotakashi | 0:8fdf9a60065b | 688 | 0x62, 0xac, 0x43, 0x0e, 0x64, 0xab, 0xe4, 0x99, |
| kadonotakashi | 0:8fdf9a60065b | 689 | 0xf4, 0x7c, 0x9b, 0x1f }, |
| kadonotakashi | 0:8fdf9a60065b | 690 | { 0x5a, 0x8d, 0xef, 0x2f, 0x0c, 0x9e, 0x53, 0xf1, |
| kadonotakashi | 0:8fdf9a60065b | 691 | 0xf7, 0x5d, 0x78, 0x53, 0x65, 0x9e, 0x2a, 0x20, |
| kadonotakashi | 0:8fdf9a60065b | 692 | 0xee, 0xb2, 0xb2, 0x2a, 0xaf, 0xde, 0x64, 0x19, |
| kadonotakashi | 0:8fdf9a60065b | 693 | 0xa0, 0x58, 0xab, 0x4f, 0x6f, 0x74, 0x6b, 0xf4, |
| kadonotakashi | 0:8fdf9a60065b | 694 | 0x0f, 0xc0, 0xc3, 0xb7, 0x80, 0xf2, 0x44, 0x45, |
| kadonotakashi | 0:8fdf9a60065b | 695 | 0x2d, 0xa3, 0xeb, 0xf1, 0xc5, 0xd8, 0x2c, 0xde, |
| kadonotakashi | 0:8fdf9a60065b | 696 | 0xa2, 0x41, 0x89, 0x97, 0x20, 0x0e, 0xf8, 0x2e, |
| kadonotakashi | 0:8fdf9a60065b | 697 | 0x44, 0xae, 0x7e, 0x3f }, |
| kadonotakashi | 0:8fdf9a60065b | 698 | }; |
| kadonotakashi | 0:8fdf9a60065b | 699 | |
| kadonotakashi | 0:8fdf9a60065b | 700 | static const unsigned char tag[MAX_TESTS * 3][16] = |
| kadonotakashi | 0:8fdf9a60065b | 701 | { |
| kadonotakashi | 0:8fdf9a60065b | 702 | { 0x58, 0xe2, 0xfc, 0xce, 0xfa, 0x7e, 0x30, 0x61, |
| kadonotakashi | 0:8fdf9a60065b | 703 | 0x36, 0x7f, 0x1d, 0x57, 0xa4, 0xe7, 0x45, 0x5a }, |
| kadonotakashi | 0:8fdf9a60065b | 704 | { 0xab, 0x6e, 0x47, 0xd4, 0x2c, 0xec, 0x13, 0xbd, |
| kadonotakashi | 0:8fdf9a60065b | 705 | 0xf5, 0x3a, 0x67, 0xb2, 0x12, 0x57, 0xbd, 0xdf }, |
| kadonotakashi | 0:8fdf9a60065b | 706 | { 0x4d, 0x5c, 0x2a, 0xf3, 0x27, 0xcd, 0x64, 0xa6, |
| kadonotakashi | 0:8fdf9a60065b | 707 | 0x2c, 0xf3, 0x5a, 0xbd, 0x2b, 0xa6, 0xfa, 0xb4 }, |
| kadonotakashi | 0:8fdf9a60065b | 708 | { 0x5b, 0xc9, 0x4f, 0xbc, 0x32, 0x21, 0xa5, 0xdb, |
| kadonotakashi | 0:8fdf9a60065b | 709 | 0x94, 0xfa, 0xe9, 0x5a, 0xe7, 0x12, 0x1a, 0x47 }, |
| kadonotakashi | 0:8fdf9a60065b | 710 | { 0x36, 0x12, 0xd2, 0xe7, 0x9e, 0x3b, 0x07, 0x85, |
| kadonotakashi | 0:8fdf9a60065b | 711 | 0x56, 0x1b, 0xe1, 0x4a, 0xac, 0xa2, 0xfc, 0xcb }, |
| kadonotakashi | 0:8fdf9a60065b | 712 | { 0x61, 0x9c, 0xc5, 0xae, 0xff, 0xfe, 0x0b, 0xfa, |
| kadonotakashi | 0:8fdf9a60065b | 713 | 0x46, 0x2a, 0xf4, 0x3c, 0x16, 0x99, 0xd0, 0x50 }, |
| kadonotakashi | 0:8fdf9a60065b | 714 | { 0xcd, 0x33, 0xb2, 0x8a, 0xc7, 0x73, 0xf7, 0x4b, |
| kadonotakashi | 0:8fdf9a60065b | 715 | 0xa0, 0x0e, 0xd1, 0xf3, 0x12, 0x57, 0x24, 0x35 }, |
| kadonotakashi | 0:8fdf9a60065b | 716 | { 0x2f, 0xf5, 0x8d, 0x80, 0x03, 0x39, 0x27, 0xab, |
| kadonotakashi | 0:8fdf9a60065b | 717 | 0x8e, 0xf4, 0xd4, 0x58, 0x75, 0x14, 0xf0, 0xfb }, |
| kadonotakashi | 0:8fdf9a60065b | 718 | { 0x99, 0x24, 0xa7, 0xc8, 0x58, 0x73, 0x36, 0xbf, |
| kadonotakashi | 0:8fdf9a60065b | 719 | 0xb1, 0x18, 0x02, 0x4d, 0xb8, 0x67, 0x4a, 0x14 }, |
| kadonotakashi | 0:8fdf9a60065b | 720 | { 0x25, 0x19, 0x49, 0x8e, 0x80, 0xf1, 0x47, 0x8f, |
| kadonotakashi | 0:8fdf9a60065b | 721 | 0x37, 0xba, 0x55, 0xbd, 0x6d, 0x27, 0x61, 0x8c }, |
| kadonotakashi | 0:8fdf9a60065b | 722 | { 0x65, 0xdc, 0xc5, 0x7f, 0xcf, 0x62, 0x3a, 0x24, |
| kadonotakashi | 0:8fdf9a60065b | 723 | 0x09, 0x4f, 0xcc, 0xa4, 0x0d, 0x35, 0x33, 0xf8 }, |
| kadonotakashi | 0:8fdf9a60065b | 724 | { 0xdc, 0xf5, 0x66, 0xff, 0x29, 0x1c, 0x25, 0xbb, |
| kadonotakashi | 0:8fdf9a60065b | 725 | 0xb8, 0x56, 0x8f, 0xc3, 0xd3, 0x76, 0xa6, 0xd9 }, |
| kadonotakashi | 0:8fdf9a60065b | 726 | { 0x53, 0x0f, 0x8a, 0xfb, 0xc7, 0x45, 0x36, 0xb9, |
| kadonotakashi | 0:8fdf9a60065b | 727 | 0xa9, 0x63, 0xb4, 0xf1, 0xc4, 0xcb, 0x73, 0x8b }, |
| kadonotakashi | 0:8fdf9a60065b | 728 | { 0xd0, 0xd1, 0xc8, 0xa7, 0x99, 0x99, 0x6b, 0xf0, |
| kadonotakashi | 0:8fdf9a60065b | 729 | 0x26, 0x5b, 0x98, 0xb5, 0xd4, 0x8a, 0xb9, 0x19 }, |
| kadonotakashi | 0:8fdf9a60065b | 730 | { 0xb0, 0x94, 0xda, 0xc5, 0xd9, 0x34, 0x71, 0xbd, |
| kadonotakashi | 0:8fdf9a60065b | 731 | 0xec, 0x1a, 0x50, 0x22, 0x70, 0xe3, 0xcc, 0x6c }, |
| kadonotakashi | 0:8fdf9a60065b | 732 | { 0x76, 0xfc, 0x6e, 0xce, 0x0f, 0x4e, 0x17, 0x68, |
| kadonotakashi | 0:8fdf9a60065b | 733 | 0xcd, 0xdf, 0x88, 0x53, 0xbb, 0x2d, 0x55, 0x1b }, |
| kadonotakashi | 0:8fdf9a60065b | 734 | { 0x3a, 0x33, 0x7d, 0xbf, 0x46, 0xa7, 0x92, 0xc4, |
| kadonotakashi | 0:8fdf9a60065b | 735 | 0x5e, 0x45, 0x49, 0x13, 0xfe, 0x2e, 0xa8, 0xf2 }, |
| kadonotakashi | 0:8fdf9a60065b | 736 | { 0xa4, 0x4a, 0x82, 0x66, 0xee, 0x1c, 0x8e, 0xb0, |
| kadonotakashi | 0:8fdf9a60065b | 737 | 0xc8, 0xb5, 0xd4, 0xcf, 0x5a, 0xe9, 0xf1, 0x9a }, |
| kadonotakashi | 0:8fdf9a60065b | 738 | }; |
| kadonotakashi | 0:8fdf9a60065b | 739 | |
| kadonotakashi | 0:8fdf9a60065b | 740 | int mbedtls_gcm_self_test( int verbose ) |
| kadonotakashi | 0:8fdf9a60065b | 741 | { |
| kadonotakashi | 0:8fdf9a60065b | 742 | mbedtls_gcm_context ctx; |
| kadonotakashi | 0:8fdf9a60065b | 743 | unsigned char buf[64]; |
| kadonotakashi | 0:8fdf9a60065b | 744 | unsigned char tag_buf[16]; |
| kadonotakashi | 0:8fdf9a60065b | 745 | int i, j, ret; |
| kadonotakashi | 0:8fdf9a60065b | 746 | mbedtls_cipher_id_t cipher = MBEDTLS_CIPHER_ID_AES; |
| kadonotakashi | 0:8fdf9a60065b | 747 | |
| kadonotakashi | 0:8fdf9a60065b | 748 | for( j = 0; j < 3; j++ ) |
| kadonotakashi | 0:8fdf9a60065b | 749 | { |
| kadonotakashi | 0:8fdf9a60065b | 750 | int key_len = 128 + 64 * j; |
| kadonotakashi | 0:8fdf9a60065b | 751 | |
| kadonotakashi | 0:8fdf9a60065b | 752 | for( i = 0; i < MAX_TESTS; i++ ) |
| kadonotakashi | 0:8fdf9a60065b | 753 | { |
| kadonotakashi | 0:8fdf9a60065b | 754 | mbedtls_gcm_init( &ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 755 | |
| kadonotakashi | 0:8fdf9a60065b | 756 | if( verbose != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 757 | mbedtls_printf( " AES-GCM-%3d #%d (%s): ", |
| kadonotakashi | 0:8fdf9a60065b | 758 | key_len, i, "enc" ); |
| kadonotakashi | 0:8fdf9a60065b | 759 | |
| kadonotakashi | 0:8fdf9a60065b | 760 | ret = mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]], |
| kadonotakashi | 0:8fdf9a60065b | 761 | key_len ); |
| kadonotakashi | 0:8fdf9a60065b | 762 | /* |
| kadonotakashi | 0:8fdf9a60065b | 763 | * AES-192 is an optional feature that may be unavailable when |
| kadonotakashi | 0:8fdf9a60065b | 764 | * there is an alternative underlying implementation i.e. when |
| kadonotakashi | 0:8fdf9a60065b | 765 | * MBEDTLS_AES_ALT is defined. |
| kadonotakashi | 0:8fdf9a60065b | 766 | */ |
| kadonotakashi | 0:8fdf9a60065b | 767 | if( ret == MBEDTLS_ERR_AES_FEATURE_UNAVAILABLE && key_len == 192 ) |
| kadonotakashi | 0:8fdf9a60065b | 768 | { |
| kadonotakashi | 0:8fdf9a60065b | 769 | mbedtls_printf( "skipped\n" ); |
| kadonotakashi | 0:8fdf9a60065b | 770 | break; |
| kadonotakashi | 0:8fdf9a60065b | 771 | } |
| kadonotakashi | 0:8fdf9a60065b | 772 | else if( ret != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 773 | { |
| kadonotakashi | 0:8fdf9a60065b | 774 | goto exit; |
| kadonotakashi | 0:8fdf9a60065b | 775 | } |
| kadonotakashi | 0:8fdf9a60065b | 776 | |
| kadonotakashi | 0:8fdf9a60065b | 777 | ret = mbedtls_gcm_crypt_and_tag( &ctx, MBEDTLS_GCM_ENCRYPT, |
| kadonotakashi | 0:8fdf9a60065b | 778 | pt_len[i], |
| kadonotakashi | 0:8fdf9a60065b | 779 | iv[iv_index[i]], iv_len[i], |
| kadonotakashi | 0:8fdf9a60065b | 780 | additional[add_index[i]], add_len[i], |
| kadonotakashi | 0:8fdf9a60065b | 781 | pt[pt_index[i]], buf, 16, tag_buf ); |
| kadonotakashi | 0:8fdf9a60065b | 782 | if( ret != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 783 | goto exit; |
| kadonotakashi | 0:8fdf9a60065b | 784 | |
| kadonotakashi | 0:8fdf9a60065b | 785 | if ( memcmp( buf, ct[j * 6 + i], pt_len[i] ) != 0 || |
| kadonotakashi | 0:8fdf9a60065b | 786 | memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 787 | { |
| kadonotakashi | 0:8fdf9a60065b | 788 | ret = 1; |
| kadonotakashi | 0:8fdf9a60065b | 789 | goto exit; |
| kadonotakashi | 0:8fdf9a60065b | 790 | } |
| kadonotakashi | 0:8fdf9a60065b | 791 | |
| kadonotakashi | 0:8fdf9a60065b | 792 | mbedtls_gcm_free( &ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 793 | |
| kadonotakashi | 0:8fdf9a60065b | 794 | if( verbose != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 795 | mbedtls_printf( "passed\n" ); |
| kadonotakashi | 0:8fdf9a60065b | 796 | |
| kadonotakashi | 0:8fdf9a60065b | 797 | mbedtls_gcm_init( &ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 798 | |
| kadonotakashi | 0:8fdf9a60065b | 799 | if( verbose != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 800 | mbedtls_printf( " AES-GCM-%3d #%d (%s): ", |
| kadonotakashi | 0:8fdf9a60065b | 801 | key_len, i, "dec" ); |
| kadonotakashi | 0:8fdf9a60065b | 802 | |
| kadonotakashi | 0:8fdf9a60065b | 803 | ret = mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]], |
| kadonotakashi | 0:8fdf9a60065b | 804 | key_len ); |
| kadonotakashi | 0:8fdf9a60065b | 805 | if( ret != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 806 | goto exit; |
| kadonotakashi | 0:8fdf9a60065b | 807 | |
| kadonotakashi | 0:8fdf9a60065b | 808 | ret = mbedtls_gcm_crypt_and_tag( &ctx, MBEDTLS_GCM_DECRYPT, |
| kadonotakashi | 0:8fdf9a60065b | 809 | pt_len[i], |
| kadonotakashi | 0:8fdf9a60065b | 810 | iv[iv_index[i]], iv_len[i], |
| kadonotakashi | 0:8fdf9a60065b | 811 | additional[add_index[i]], add_len[i], |
| kadonotakashi | 0:8fdf9a60065b | 812 | ct[j * 6 + i], buf, 16, tag_buf ); |
| kadonotakashi | 0:8fdf9a60065b | 813 | |
| kadonotakashi | 0:8fdf9a60065b | 814 | if( ret != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 815 | goto exit; |
| kadonotakashi | 0:8fdf9a60065b | 816 | |
| kadonotakashi | 0:8fdf9a60065b | 817 | if( memcmp( buf, pt[pt_index[i]], pt_len[i] ) != 0 || |
| kadonotakashi | 0:8fdf9a60065b | 818 | memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 819 | { |
| kadonotakashi | 0:8fdf9a60065b | 820 | ret = 1; |
| kadonotakashi | 0:8fdf9a60065b | 821 | goto exit; |
| kadonotakashi | 0:8fdf9a60065b | 822 | } |
| kadonotakashi | 0:8fdf9a60065b | 823 | |
| kadonotakashi | 0:8fdf9a60065b | 824 | mbedtls_gcm_free( &ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 825 | |
| kadonotakashi | 0:8fdf9a60065b | 826 | if( verbose != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 827 | mbedtls_printf( "passed\n" ); |
| kadonotakashi | 0:8fdf9a60065b | 828 | |
| kadonotakashi | 0:8fdf9a60065b | 829 | mbedtls_gcm_init( &ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 830 | |
| kadonotakashi | 0:8fdf9a60065b | 831 | if( verbose != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 832 | mbedtls_printf( " AES-GCM-%3d #%d split (%s): ", |
| kadonotakashi | 0:8fdf9a60065b | 833 | key_len, i, "enc" ); |
| kadonotakashi | 0:8fdf9a60065b | 834 | |
| kadonotakashi | 0:8fdf9a60065b | 835 | ret = mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]], |
| kadonotakashi | 0:8fdf9a60065b | 836 | key_len ); |
| kadonotakashi | 0:8fdf9a60065b | 837 | if( ret != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 838 | goto exit; |
| kadonotakashi | 0:8fdf9a60065b | 839 | |
| kadonotakashi | 0:8fdf9a60065b | 840 | ret = mbedtls_gcm_starts( &ctx, MBEDTLS_GCM_ENCRYPT, |
| kadonotakashi | 0:8fdf9a60065b | 841 | iv[iv_index[i]], iv_len[i], |
| kadonotakashi | 0:8fdf9a60065b | 842 | additional[add_index[i]], add_len[i] ); |
| kadonotakashi | 0:8fdf9a60065b | 843 | if( ret != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 844 | goto exit; |
| kadonotakashi | 0:8fdf9a60065b | 845 | |
| kadonotakashi | 0:8fdf9a60065b | 846 | if( pt_len[i] > 32 ) |
| kadonotakashi | 0:8fdf9a60065b | 847 | { |
| kadonotakashi | 0:8fdf9a60065b | 848 | size_t rest_len = pt_len[i] - 32; |
| kadonotakashi | 0:8fdf9a60065b | 849 | ret = mbedtls_gcm_update( &ctx, 32, pt[pt_index[i]], buf ); |
| kadonotakashi | 0:8fdf9a60065b | 850 | if( ret != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 851 | goto exit; |
| kadonotakashi | 0:8fdf9a60065b | 852 | |
| kadonotakashi | 0:8fdf9a60065b | 853 | ret = mbedtls_gcm_update( &ctx, rest_len, pt[pt_index[i]] + 32, |
| kadonotakashi | 0:8fdf9a60065b | 854 | buf + 32 ); |
| kadonotakashi | 0:8fdf9a60065b | 855 | if( ret != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 856 | goto exit; |
| kadonotakashi | 0:8fdf9a60065b | 857 | } |
| kadonotakashi | 0:8fdf9a60065b | 858 | else |
| kadonotakashi | 0:8fdf9a60065b | 859 | { |
| kadonotakashi | 0:8fdf9a60065b | 860 | ret = mbedtls_gcm_update( &ctx, pt_len[i], pt[pt_index[i]], buf ); |
| kadonotakashi | 0:8fdf9a60065b | 861 | if( ret != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 862 | goto exit; |
| kadonotakashi | 0:8fdf9a60065b | 863 | } |
| kadonotakashi | 0:8fdf9a60065b | 864 | |
| kadonotakashi | 0:8fdf9a60065b | 865 | ret = mbedtls_gcm_finish( &ctx, tag_buf, 16 ); |
| kadonotakashi | 0:8fdf9a60065b | 866 | if( ret != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 867 | goto exit; |
| kadonotakashi | 0:8fdf9a60065b | 868 | |
| kadonotakashi | 0:8fdf9a60065b | 869 | if( memcmp( buf, ct[j * 6 + i], pt_len[i] ) != 0 || |
| kadonotakashi | 0:8fdf9a60065b | 870 | memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 871 | { |
| kadonotakashi | 0:8fdf9a60065b | 872 | ret = 1; |
| kadonotakashi | 0:8fdf9a60065b | 873 | goto exit; |
| kadonotakashi | 0:8fdf9a60065b | 874 | } |
| kadonotakashi | 0:8fdf9a60065b | 875 | |
| kadonotakashi | 0:8fdf9a60065b | 876 | mbedtls_gcm_free( &ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 877 | |
| kadonotakashi | 0:8fdf9a60065b | 878 | if( verbose != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 879 | mbedtls_printf( "passed\n" ); |
| kadonotakashi | 0:8fdf9a60065b | 880 | |
| kadonotakashi | 0:8fdf9a60065b | 881 | mbedtls_gcm_init( &ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 882 | |
| kadonotakashi | 0:8fdf9a60065b | 883 | if( verbose != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 884 | mbedtls_printf( " AES-GCM-%3d #%d split (%s): ", |
| kadonotakashi | 0:8fdf9a60065b | 885 | key_len, i, "dec" ); |
| kadonotakashi | 0:8fdf9a60065b | 886 | |
| kadonotakashi | 0:8fdf9a60065b | 887 | ret = mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]], |
| kadonotakashi | 0:8fdf9a60065b | 888 | key_len ); |
| kadonotakashi | 0:8fdf9a60065b | 889 | if( ret != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 890 | goto exit; |
| kadonotakashi | 0:8fdf9a60065b | 891 | |
| kadonotakashi | 0:8fdf9a60065b | 892 | ret = mbedtls_gcm_starts( &ctx, MBEDTLS_GCM_DECRYPT, |
| kadonotakashi | 0:8fdf9a60065b | 893 | iv[iv_index[i]], iv_len[i], |
| kadonotakashi | 0:8fdf9a60065b | 894 | additional[add_index[i]], add_len[i] ); |
| kadonotakashi | 0:8fdf9a60065b | 895 | if( ret != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 896 | goto exit; |
| kadonotakashi | 0:8fdf9a60065b | 897 | |
| kadonotakashi | 0:8fdf9a60065b | 898 | if( pt_len[i] > 32 ) |
| kadonotakashi | 0:8fdf9a60065b | 899 | { |
| kadonotakashi | 0:8fdf9a60065b | 900 | size_t rest_len = pt_len[i] - 32; |
| kadonotakashi | 0:8fdf9a60065b | 901 | ret = mbedtls_gcm_update( &ctx, 32, ct[j * 6 + i], buf ); |
| kadonotakashi | 0:8fdf9a60065b | 902 | if( ret != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 903 | goto exit; |
| kadonotakashi | 0:8fdf9a60065b | 904 | |
| kadonotakashi | 0:8fdf9a60065b | 905 | ret = mbedtls_gcm_update( &ctx, rest_len, ct[j * 6 + i] + 32, |
| kadonotakashi | 0:8fdf9a60065b | 906 | buf + 32 ); |
| kadonotakashi | 0:8fdf9a60065b | 907 | if( ret != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 908 | goto exit; |
| kadonotakashi | 0:8fdf9a60065b | 909 | } |
| kadonotakashi | 0:8fdf9a60065b | 910 | else |
| kadonotakashi | 0:8fdf9a60065b | 911 | { |
| kadonotakashi | 0:8fdf9a60065b | 912 | ret = mbedtls_gcm_update( &ctx, pt_len[i], ct[j * 6 + i], |
| kadonotakashi | 0:8fdf9a60065b | 913 | buf ); |
| kadonotakashi | 0:8fdf9a60065b | 914 | if( ret != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 915 | goto exit; |
| kadonotakashi | 0:8fdf9a60065b | 916 | } |
| kadonotakashi | 0:8fdf9a60065b | 917 | |
| kadonotakashi | 0:8fdf9a60065b | 918 | ret = mbedtls_gcm_finish( &ctx, tag_buf, 16 ); |
| kadonotakashi | 0:8fdf9a60065b | 919 | if( ret != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 920 | goto exit; |
| kadonotakashi | 0:8fdf9a60065b | 921 | |
| kadonotakashi | 0:8fdf9a60065b | 922 | if( memcmp( buf, pt[pt_index[i]], pt_len[i] ) != 0 || |
| kadonotakashi | 0:8fdf9a60065b | 923 | memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 924 | { |
| kadonotakashi | 0:8fdf9a60065b | 925 | ret = 1; |
| kadonotakashi | 0:8fdf9a60065b | 926 | goto exit; |
| kadonotakashi | 0:8fdf9a60065b | 927 | } |
| kadonotakashi | 0:8fdf9a60065b | 928 | |
| kadonotakashi | 0:8fdf9a60065b | 929 | mbedtls_gcm_free( &ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 930 | |
| kadonotakashi | 0:8fdf9a60065b | 931 | if( verbose != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 932 | mbedtls_printf( "passed\n" ); |
| kadonotakashi | 0:8fdf9a60065b | 933 | } |
| kadonotakashi | 0:8fdf9a60065b | 934 | } |
| kadonotakashi | 0:8fdf9a60065b | 935 | |
| kadonotakashi | 0:8fdf9a60065b | 936 | if( verbose != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 937 | mbedtls_printf( "\n" ); |
| kadonotakashi | 0:8fdf9a60065b | 938 | |
| kadonotakashi | 0:8fdf9a60065b | 939 | ret = 0; |
| kadonotakashi | 0:8fdf9a60065b | 940 | |
| kadonotakashi | 0:8fdf9a60065b | 941 | exit: |
| kadonotakashi | 0:8fdf9a60065b | 942 | if( ret != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 943 | { |
| kadonotakashi | 0:8fdf9a60065b | 944 | if( verbose != 0 ) |
| kadonotakashi | 0:8fdf9a60065b | 945 | mbedtls_printf( "failed\n" ); |
| kadonotakashi | 0:8fdf9a60065b | 946 | mbedtls_gcm_free( &ctx ); |
| kadonotakashi | 0:8fdf9a60065b | 947 | } |
| kadonotakashi | 0:8fdf9a60065b | 948 | |
| kadonotakashi | 0:8fdf9a60065b | 949 | return( ret ); |
| kadonotakashi | 0:8fdf9a60065b | 950 | } |
| kadonotakashi | 0:8fdf9a60065b | 951 | |
| kadonotakashi | 0:8fdf9a60065b | 952 | #endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */ |
| kadonotakashi | 0:8fdf9a60065b | 953 | |
| kadonotakashi | 0:8fdf9a60065b | 954 | #endif /* MBEDTLS_GCM_C */ |