pineapple/externals/mbedtls/include/mbedtls/aesni.h

164 lines
5.4 KiB
C
Raw Normal View History

2020-12-28 16:15:37 +01:00
/**
* \file aesni.h
*
* \brief AES-NI for hardware AES acceleration on some Intel processors
2021-03-06 01:41:47 +01:00
*
* \warning These functions are only for internal use by other library
* functions; you must not call them directly.
2020-12-28 16:15:37 +01:00
*/
/*
2021-03-06 01:41:47 +01:00
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
*
* This file is provided under the Apache License 2.0, or the
* GNU General Public License v2.0 or later.
*
* **********
* Apache License 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.
*
* **********
*
* **********
* GNU General Public License v2.0 or later:
2020-12-28 16:15:37 +01:00
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
2021-03-06 01:41:47 +01:00
* **********
2020-12-28 16:15:37 +01:00
*/
#ifndef MBEDTLS_AESNI_H
#define MBEDTLS_AESNI_H
2021-03-06 01:41:47 +01:00
#if !defined(MBEDTLS_CONFIG_FILE)
#include "config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
2020-12-28 16:15:37 +01:00
#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
/**
2021-03-06 01:41:47 +01:00
* \brief Internal function to detect the AES-NI feature in CPUs.
*
* \note This function is only for internal use by other library
* functions; you must not call it directly.
2020-12-28 16:15:37 +01:00
*
* \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 );
/**
2021-03-06 01:41:47 +01:00
* \brief Internal AES-NI AES-ECB block encryption and decryption
*
* \note This function is only for internal use by other library
* functions; you must not call it directly.
2020-12-28 16:15:37 +01:00
*
* \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,
2021-03-06 01:41:47 +01:00
int mode,
const unsigned char input[16],
unsigned char output[16] );
2020-12-28 16:15:37 +01:00
/**
2021-03-06 01:41:47 +01:00
* \brief Internal GCM multiplication: c = a * b in GF(2^128)
*
* \note This function is only for internal use by other library
* functions; you must not call it directly.
2020-12-28 16:15:37 +01:00
*
* \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],
2021-03-06 01:41:47 +01:00
const unsigned char a[16],
const unsigned char b[16] );
2020-12-28 16:15:37 +01:00
/**
2021-03-06 01:41:47 +01:00
* \brief Internal round key inversion. This function computes
* decryption round keys from the encryption round keys.
*
* \note This function is only for internal use by other library
* functions; you must not call it directly.
2020-12-28 16:15:37 +01:00
*
* \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,
2021-03-06 01:41:47 +01:00
const unsigned char *fwdkey,
int nr );
2020-12-28 16:15:37 +01:00
/**
2021-03-06 01:41:47 +01:00
* \brief Internal key expansion for encryption
*
* \note This function is only for internal use by other library
* functions; you must not call it directly.
2020-12-28 16:15:37 +01:00
*
* \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,
2021-03-06 01:41:47 +01:00
const unsigned char *key,
size_t bits );
2020-12-28 16:15:37 +01:00
#ifdef __cplusplus
}
#endif
#endif /* MBEDTLS_HAVE_X86_64 */
#endif /* MBEDTLS_AESNI_H */