mbed TLS Build
include/mbedtls/aesni.h
- Committer:
- markrad
- Date:
- 2017-01-05
- Revision:
- 0:cdf462088d13
File content as of revision 0:cdf462088d13:
/** * \file aesni.h * * \brief AES-NI for hardware AES acceleration on some Intel processors * * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the "License"); you may * not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * This file is part of mbed TLS (https://tls.mbed.org) */ #ifndef MBEDTLS_AESNI_H #define MBEDTLS_AESNI_H #include "aes.h" #define MBEDTLS_AESNI_AES 0x02000000u #define MBEDTLS_AESNI_CLMUL 0x00000002u #if defined(MBEDTLS_HAVE_ASM) && defined(__GNUC__) && \ ( defined(__amd64__) || defined(__x86_64__) ) && \ ! defined(MBEDTLS_HAVE_X86_64) #define MBEDTLS_HAVE_X86_64 #endif #if defined(MBEDTLS_HAVE_X86_64) #ifdef __cplusplus extern "C" { #endif /** * \brief AES-NI features detection routine * * \param what The feature to detect * (MBEDTLS_AESNI_AES or MBEDTLS_AESNI_CLMUL) * * \return 1 if CPU has support for the feature, 0 otherwise */ int mbedtls_aesni_has_support( unsigned int what ); /** * \brief AES-NI AES-ECB block en(de)cryption * * \param ctx AES context * \param mode MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT * \param input 16-byte input block * \param output 16-byte output block * * \return 0 on success (cannot fail) */ int mbedtls_aesni_crypt_ecb( mbedtls_aes_context *ctx, int mode, const unsigned char input[16], unsigned char output[16] ); /** * \brief GCM multiplication: c = a * b in GF(2^128) * * \param c Result * \param a First operand * \param b Second operand * * \note Both operands and result are bit strings interpreted as * elements of GF(2^128) as per the GCM spec. */ void mbedtls_aesni_gcm_mult( unsigned char c[16], const unsigned char a[16], const unsigned char b[16] ); /** * \brief Compute decryption round keys from encryption round keys * * \param invkey Round keys for the equivalent inverse cipher * \param fwdkey Original round keys (for encryption) * \param nr Number of rounds (that is, number of round keys minus one) */ void mbedtls_aesni_inverse_key( unsigned char *invkey, const unsigned char *fwdkey, int nr ); /** * \brief Perform key expansion (for encryption) * * \param rk Destination buffer where the round keys are written * \param key Encryption key * \param bits Key size in bits (must be 128, 192 or 256) * * \return 0 if successful, or MBEDTLS_ERR_AES_INVALID_KEY_LENGTH */ int mbedtls_aesni_setkey_enc( unsigned char *rk, const unsigned char *key, size_t bits ); #ifdef __cplusplus } #endif #endif /* MBEDTLS_HAVE_X86_64 */ #endif /* MBEDTLS_AESNI_H */