mirror of
https://github.com/yuzu-emu/mbedtls.git
synced 2024-11-29 12:04:20 +01:00
112 lines
3.3 KiB
C
112 lines
3.3 KiB
C
/**
|
|
* \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 */
|