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/*
* DES3 (de/en)crypt functions
*
* Copyright (C) 2017-2024, Joachim Metz <joachim.metz@gmail.com>
*
* Refer to AUTHORS for acknowledgements.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 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 Lesser General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#if !defined( _LIBFCRYPTO_DES3_CONTEXT_H )
#define _LIBFCRYPTO_DES3_CONTEXT_H
#include <common.h>
#include <types.h>
#include "libfcrypto_extern.h"
#include "libfcrypto_libcerror.h"
#include "libfcrypto_types.h"
#if defined( __cplusplus )
extern "C" {
#endif
typedef struct libfcrypto_internal_des3_context libfcrypto_internal_des3_context_t;
struct libfcrypto_internal_des3_context
{
/* The keys
*/
uint64_t keys[ 3 ];
};
LIBFCRYPTO_EXTERN \
int libfcrypto_des3_context_initialize(
libfcrypto_des3_context_t **context,
libcerror_error_t **error );
LIBFCRYPTO_EXTERN \
int libfcrypto_des3_context_free(
libfcrypto_des3_context_t **context,
libcerror_error_t **error );
LIBFCRYPTO_EXTERN \
int libfcrypto_des3_context_set_key(
libfcrypto_des3_context_t *context,
const uint8_t *key,
size_t key_bit_size,
libcerror_error_t **error );
int libfcrypto_internal_des3_context_crypt_block(
libfcrypto_internal_des3_context_t *internal_context,
uint64_t key_value,
int mode,
uint64_t input_value,
uint64_t *output_value,
libcerror_error_t **error );
LIBFCRYPTO_EXTERN \
int libfcrypto_des3_crypt_cbc(
libfcrypto_des3_context_t *context,
int mode,
const uint8_t *initialization_vector,
size_t initialization_vector_size,
const uint8_t *input_data,
size_t input_data_size,
uint8_t *output_data,
size_t output_data_size,
libcerror_error_t **error );
LIBFCRYPTO_EXTERN \
int libfcrypto_des3_crypt_ecb(
libfcrypto_des3_context_t *context,
int mode,
const uint8_t *input_data,
size_t input_data_size,
uint8_t *output_data,
size_t output_data_size,
libcerror_error_t **error );
LIBFCRYPTO_EXTERN \
int libfcrypto_des3_crypt(
libfcrypto_des3_context_t *context,
int mode,
const uint8_t *input_data,
size_t input_data_size,
uint8_t *output_data,
size_t output_data_size,
libcerror_error_t **error );
#if defined( __cplusplus )
}
#endif
#endif /* !defined( _LIBFCRYPTO_DES3_CONTEXT_H ) */
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