cipher_internal.h

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/*
 *  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:
 *
 *  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.
 *
 *  **********
 */
#ifndef MBEDTLS_CIPHER_WRAP_H
#define MBEDTLS_CIPHER_WRAP_H
 
#if !defined(MBEDTLS_CONFIG_FILE)
#include "config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
 
#include "cipher.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
struct mbedtls_cipher_base_t
{
    mbedtls_cipher_id_t cipher;
 
    int (*ecb_func)( void *ctx, mbedtls_operation_t mode,
                     const unsigned char *input, unsigned char *output );
 
#if defined(MBEDTLS_CIPHER_MODE_CBC)
    int (*cbc_func)( void *ctx, mbedtls_operation_t mode, size_t length,
                     unsigned char *iv, const unsigned char *input,
                     unsigned char *output );
#endif
 
#if defined(MBEDTLS_CIPHER_MODE_CFB)
    int (*cfb_func)( void *ctx, mbedtls_operation_t mode, size_t length, size_t *iv_off,
                     unsigned char *iv, const unsigned char *input,
                     unsigned char *output );
#endif
 
#if defined(MBEDTLS_CIPHER_MODE_OFB)
    int (*ofb_func)( void *ctx, size_t length, size_t *iv_off,
                     unsigned char *iv,
                     const unsigned char *input,
                     unsigned char *output );
#endif
 
#if defined(MBEDTLS_CIPHER_MODE_CTR)
    int (*ctr_func)( void *ctx, size_t length, size_t *nc_off,
                     unsigned char *nonce_counter, unsigned char *stream_block,
                     const unsigned char *input, unsigned char *output );
#endif
 
#if defined(MBEDTLS_CIPHER_MODE_XTS)
    int (*xts_func)( void *ctx, mbedtls_operation_t mode, size_t length,
                     const unsigned char data_unit[16],
                     const unsigned char *input, unsigned char *output );
#endif
 
#if defined(MBEDTLS_CIPHER_MODE_STREAM)
    int (*stream_func)( void *ctx, size_t length,
                        const unsigned char *input, unsigned char *output );
#endif
 
    int (*setkey_enc_func)( void *ctx, const unsigned char *key,
                            unsigned int key_bitlen );
 
    int (*setkey_dec_func)( void *ctx, const unsigned char *key,
                            unsigned int key_bitlen);
 
    void * (*ctx_alloc_func)( void );
 
    void (*ctx_free_func)( void *ctx );
 
};
 
typedef struct
{
    mbedtls_cipher_type_t type;
    const mbedtls_cipher_info_t *info;
} mbedtls_cipher_definition_t;
 
extern const mbedtls_cipher_definition_t mbedtls_cipher_definitions[];
 
extern int mbedtls_cipher_supported[];
 
#ifdef __cplusplus
}
#endif
 
#endif /* MBEDTLS_CIPHER_WRAP_H */