mbed TLS library
Dependents: HTTPClient-SSL WS_SERVER
include/polarssl/aesni.h@0:137634ff4186, 2015-06-11 (annotated)
- Committer:
- ansond
- Date:
- Thu Jun 11 03:27:03 2015 +0000
- Revision:
- 0:137634ff4186
initial commit
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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ansond | 0:137634ff4186 | 1 | /** |
ansond | 0:137634ff4186 | 2 | * \file aesni.h |
ansond | 0:137634ff4186 | 3 | * |
ansond | 0:137634ff4186 | 4 | * \brief AES-NI for hardware AES acceleration on some Intel processors |
ansond | 0:137634ff4186 | 5 | * |
ansond | 0:137634ff4186 | 6 | * Copyright (C) 2013, ARM Limited, All Rights Reserved |
ansond | 0:137634ff4186 | 7 | * |
ansond | 0:137634ff4186 | 8 | * This file is part of mbed TLS (https://tls.mbed.org) |
ansond | 0:137634ff4186 | 9 | * |
ansond | 0:137634ff4186 | 10 | * This program is free software; you can redistribute it and/or modify |
ansond | 0:137634ff4186 | 11 | * it under the terms of the GNU General Public License as published by |
ansond | 0:137634ff4186 | 12 | * the Free Software Foundation; either version 2 of the License, or |
ansond | 0:137634ff4186 | 13 | * (at your option) any later version. |
ansond | 0:137634ff4186 | 14 | * |
ansond | 0:137634ff4186 | 15 | * This program is distributed in the hope that it will be useful, |
ansond | 0:137634ff4186 | 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
ansond | 0:137634ff4186 | 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
ansond | 0:137634ff4186 | 18 | * GNU General Public License for more details. |
ansond | 0:137634ff4186 | 19 | * |
ansond | 0:137634ff4186 | 20 | * You should have received a copy of the GNU General Public License along |
ansond | 0:137634ff4186 | 21 | * with this program; if not, write to the Free Software Foundation, Inc., |
ansond | 0:137634ff4186 | 22 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
ansond | 0:137634ff4186 | 23 | */ |
ansond | 0:137634ff4186 | 24 | #ifndef POLARSSL_AESNI_H |
ansond | 0:137634ff4186 | 25 | #define POLARSSL_AESNI_H |
ansond | 0:137634ff4186 | 26 | |
ansond | 0:137634ff4186 | 27 | #include "aes.h" |
ansond | 0:137634ff4186 | 28 | |
ansond | 0:137634ff4186 | 29 | #define POLARSSL_AESNI_AES 0x02000000u |
ansond | 0:137634ff4186 | 30 | #define POLARSSL_AESNI_CLMUL 0x00000002u |
ansond | 0:137634ff4186 | 31 | |
ansond | 0:137634ff4186 | 32 | #if defined(POLARSSL_HAVE_ASM) && defined(__GNUC__) && \ |
ansond | 0:137634ff4186 | 33 | ( defined(__amd64__) || defined(__x86_64__) ) && \ |
ansond | 0:137634ff4186 | 34 | ! defined(POLARSSL_HAVE_X86_64) |
ansond | 0:137634ff4186 | 35 | #define POLARSSL_HAVE_X86_64 |
ansond | 0:137634ff4186 | 36 | #endif |
ansond | 0:137634ff4186 | 37 | |
ansond | 0:137634ff4186 | 38 | #if defined(POLARSSL_HAVE_X86_64) |
ansond | 0:137634ff4186 | 39 | |
ansond | 0:137634ff4186 | 40 | #ifdef __cplusplus |
ansond | 0:137634ff4186 | 41 | extern "C" { |
ansond | 0:137634ff4186 | 42 | #endif |
ansond | 0:137634ff4186 | 43 | |
ansond | 0:137634ff4186 | 44 | /** |
ansond | 0:137634ff4186 | 45 | * \brief AES-NI features detection routine |
ansond | 0:137634ff4186 | 46 | * |
ansond | 0:137634ff4186 | 47 | * \param what The feature to detect |
ansond | 0:137634ff4186 | 48 | * (POLARSSL_AESNI_AES or POLARSSL_AESNI_CLMUL) |
ansond | 0:137634ff4186 | 49 | * |
ansond | 0:137634ff4186 | 50 | * \return 1 if CPU has support for the feature, 0 otherwise |
ansond | 0:137634ff4186 | 51 | */ |
ansond | 0:137634ff4186 | 52 | int aesni_supports( unsigned int what ); |
ansond | 0:137634ff4186 | 53 | |
ansond | 0:137634ff4186 | 54 | /** |
ansond | 0:137634ff4186 | 55 | * \brief AES-NI AES-ECB block en(de)cryption |
ansond | 0:137634ff4186 | 56 | * |
ansond | 0:137634ff4186 | 57 | * \param ctx AES context |
ansond | 0:137634ff4186 | 58 | * \param mode AES_ENCRYPT or AES_DECRYPT |
ansond | 0:137634ff4186 | 59 | * \param input 16-byte input block |
ansond | 0:137634ff4186 | 60 | * \param output 16-byte output block |
ansond | 0:137634ff4186 | 61 | * |
ansond | 0:137634ff4186 | 62 | * \return 0 on success (cannot fail) |
ansond | 0:137634ff4186 | 63 | */ |
ansond | 0:137634ff4186 | 64 | int aesni_crypt_ecb( aes_context *ctx, |
ansond | 0:137634ff4186 | 65 | int mode, |
ansond | 0:137634ff4186 | 66 | const unsigned char input[16], |
ansond | 0:137634ff4186 | 67 | unsigned char output[16] ); |
ansond | 0:137634ff4186 | 68 | |
ansond | 0:137634ff4186 | 69 | /** |
ansond | 0:137634ff4186 | 70 | * \brief GCM multiplication: c = a * b in GF(2^128) |
ansond | 0:137634ff4186 | 71 | * |
ansond | 0:137634ff4186 | 72 | * \param c Result |
ansond | 0:137634ff4186 | 73 | * \param a First operand |
ansond | 0:137634ff4186 | 74 | * \param b Second operand |
ansond | 0:137634ff4186 | 75 | * |
ansond | 0:137634ff4186 | 76 | * \note Both operands and result are bit strings interpreted as |
ansond | 0:137634ff4186 | 77 | * elements of GF(2^128) as per the GCM spec. |
ansond | 0:137634ff4186 | 78 | */ |
ansond | 0:137634ff4186 | 79 | void aesni_gcm_mult( unsigned char c[16], |
ansond | 0:137634ff4186 | 80 | const unsigned char a[16], |
ansond | 0:137634ff4186 | 81 | const unsigned char b[16] ); |
ansond | 0:137634ff4186 | 82 | |
ansond | 0:137634ff4186 | 83 | /** |
ansond | 0:137634ff4186 | 84 | * \brief Compute decryption round keys from encryption round keys |
ansond | 0:137634ff4186 | 85 | * |
ansond | 0:137634ff4186 | 86 | * \param invkey Round keys for the equivalent inverse cipher |
ansond | 0:137634ff4186 | 87 | * \param fwdkey Original round keys (for encryption) |
ansond | 0:137634ff4186 | 88 | * \param nr Number of rounds (that is, number of round keys minus one) |
ansond | 0:137634ff4186 | 89 | */ |
ansond | 0:137634ff4186 | 90 | void aesni_inverse_key( unsigned char *invkey, |
ansond | 0:137634ff4186 | 91 | const unsigned char *fwdkey, int nr ); |
ansond | 0:137634ff4186 | 92 | |
ansond | 0:137634ff4186 | 93 | /** |
ansond | 0:137634ff4186 | 94 | * \brief Perform key expansion (for encryption) |
ansond | 0:137634ff4186 | 95 | * |
ansond | 0:137634ff4186 | 96 | * \param rk Destination buffer where the round keys are written |
ansond | 0:137634ff4186 | 97 | * \param key Encryption key |
ansond | 0:137634ff4186 | 98 | * \param bits Key size in bits (must be 128, 192 or 256) |
ansond | 0:137634ff4186 | 99 | * |
ansond | 0:137634ff4186 | 100 | * \return 0 if successful, or POLARSSL_ERR_AES_INVALID_KEY_LENGTH |
ansond | 0:137634ff4186 | 101 | */ |
ansond | 0:137634ff4186 | 102 | int aesni_setkey_enc( unsigned char *rk, |
ansond | 0:137634ff4186 | 103 | const unsigned char *key, |
ansond | 0:137634ff4186 | 104 | size_t bits ); |
ansond | 0:137634ff4186 | 105 | |
ansond | 0:137634ff4186 | 106 | #ifdef __cplusplus |
ansond | 0:137634ff4186 | 107 | } |
ansond | 0:137634ff4186 | 108 | #endif |
ansond | 0:137634ff4186 | 109 | |
ansond | 0:137634ff4186 | 110 | #endif /* POLARSSL_HAVE_X86_64 */ |
ansond | 0:137634ff4186 | 111 | |
ansond | 0:137634ff4186 | 112 | #endif /* POLARSSL_AESNI_H */ |
ansond | 0:137634ff4186 | 113 |