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cipher_wrap.c
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cipher_wrap.c
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/**
* \file cipher_wrap.c
*
* \brief Generic cipher wrapper for mbed TLS
*
* \author Adriaan de Jong <[email protected]>
*
* 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)
*/
#include "config.h"
#if defined(MBEDTLS_CIPHER_C)
#include "cipher_internal.h"
#if defined(MBEDTLS_AES_C)
#include "aes.h"
#endif
#if defined(MBEDTLS_ARC4_C)
#include "arc4.h"
#endif
#if defined(MBEDTLS_CAMELLIA_C)
#include "camellia.h"
#endif
#if defined(MBEDTLS_DES_C)
#include "des.h"
#endif
#if defined(MBEDTLS_BLOWFISH_C)
#include "blowfish.h"
#endif
#if defined(MBEDTLS_GCM_C)
#include "gcm.h"
#endif
#if defined(MBEDTLS_CCM_C)
#include "ccm.h"
#endif
#if defined(MBEDTLS_CIPHER_NULL_CIPHER)
#include "utils.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "platform.h"
#endif
static mbedtls_gcm_context gcm_ctx;
static mbedtls_aes_context aes_ctx;
#if defined(MBEDTLS_CCM_C)
static mbedtls_ccm_context ccm_ctx;
#endif
#if defined(MBEDTLS_GCM_C)
/* shared by all GCM ciphers */
static void *gcm_ctx_alloc( void )
{
void *ctx = &gcm_ctx;
if( ctx != NULL )
mbedtls_gcm_init( (mbedtls_gcm_context *) ctx );
return( ctx );
}
static void gcm_ctx_free( void *ctx )
{
mbedtls_gcm_free( ctx );
/*mbedtls_free( ctx );*/
}
#endif /* MBEDTLS_GCM_C */
#if defined(MBEDTLS_CCM_C)
/* shared by all CCM ciphers */
static void *ccm_ctx_alloc( void )
{
void *ctx = &ccm_ctx;
if( ctx != NULL )
mbedtls_ccm_init( (mbedtls_ccm_context *) ctx );
return( ctx );
}
static void ccm_ctx_free( void *ctx )
{
mbedtls_ccm_free( ctx );
/*mbedtls_free( ctx );*/
}
#endif /* MBEDTLS_CCM_C */
#if defined(MBEDTLS_AES_C)
static int aes_crypt_ecb_wrap( void *ctx, mbedtls_operation_t operation,
const unsigned char *input, unsigned char *output )
{
return mbedtls_aes_crypt_ecb( (mbedtls_aes_context *) ctx, operation, input, output );
}
#if defined(MBEDTLS_CIPHER_MODE_CBC)
static int aes_crypt_cbc_wrap( void *ctx, mbedtls_operation_t operation, size_t length,
unsigned char *iv, const unsigned char *input, unsigned char *output )
{
return mbedtls_aes_crypt_cbc( (mbedtls_aes_context *) ctx, operation, length, iv, input,
output );
}
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_CIPHER_MODE_CFB)
static int aes_crypt_cfb128_wrap( void *ctx, mbedtls_operation_t operation,
size_t length, size_t *iv_off, unsigned char *iv,
const unsigned char *input, unsigned char *output )
{
return mbedtls_aes_crypt_cfb128( (mbedtls_aes_context *) ctx, operation, length, iv_off, iv,
input, output );
}
#endif /* MBEDTLS_CIPHER_MODE_CFB */
#if defined(MBEDTLS_CIPHER_MODE_CTR)
static int aes_crypt_ctr_wrap( void *ctx, size_t length, size_t *nc_off,
unsigned char *nonce_counter, unsigned char *stream_block,
const unsigned char *input, unsigned char *output )
{
return mbedtls_aes_crypt_ctr( (mbedtls_aes_context *) ctx, length, nc_off, nonce_counter,
stream_block, input, output );
}
#endif /* MBEDTLS_CIPHER_MODE_CTR */
static int aes_setkey_dec_wrap( void *ctx, const unsigned char *key,
unsigned int key_bitlen )
{
return mbedtls_aes_setkey_dec( (mbedtls_aes_context *) ctx, key, key_bitlen );
}
static int aes_setkey_enc_wrap( void *ctx, const unsigned char *key,
unsigned int key_bitlen )
{
return mbedtls_aes_setkey_enc( (mbedtls_aes_context *) ctx, key, key_bitlen );
}
static void * aes_ctx_alloc( void )
{
mbedtls_aes_context *aes = &aes_ctx;
if( aes == NULL )
return( NULL );
mbedtls_aes_init( aes );
return( aes );
}
static void aes_ctx_free( void *ctx )
{
mbedtls_aes_free( (mbedtls_aes_context *) ctx );
/*mbedtls_free( ctx );*/
}
static const mbedtls_cipher_base_t aes_info = {
MBEDTLS_CIPHER_ID_AES,
aes_crypt_ecb_wrap,
#if defined(MBEDTLS_CIPHER_MODE_CBC)
aes_crypt_cbc_wrap,
#endif
#if defined(MBEDTLS_CIPHER_MODE_CFB)
aes_crypt_cfb128_wrap,
#endif
#if defined(MBEDTLS_CIPHER_MODE_CTR)
aes_crypt_ctr_wrap,
#endif
#if defined(MBEDTLS_CIPHER_MODE_STREAM)
NULL,
#endif
aes_setkey_enc_wrap,
aes_setkey_dec_wrap,
aes_ctx_alloc,
aes_ctx_free
};
static const mbedtls_cipher_info_t aes_128_ecb_info = {
MBEDTLS_CIPHER_AES_128_ECB,
MBEDTLS_MODE_ECB,
128,
"AES-128-ECB",
16,
0,
16,
&aes_info
};
static const mbedtls_cipher_info_t aes_192_ecb_info = {
MBEDTLS_CIPHER_AES_192_ECB,
MBEDTLS_MODE_ECB,
192,
"AES-192-ECB",
16,
0,
16,
&aes_info
};
static const mbedtls_cipher_info_t aes_256_ecb_info = {
MBEDTLS_CIPHER_AES_256_ECB,
MBEDTLS_MODE_ECB,
256,
"AES-256-ECB",
16,
0,
16,
&aes_info
};
#if defined(MBEDTLS_CIPHER_MODE_CBC)
static const mbedtls_cipher_info_t aes_128_cbc_info = {
MBEDTLS_CIPHER_AES_128_CBC,
MBEDTLS_MODE_CBC,
128,
"AES-128-CBC",
16,
0,
16,
&aes_info
};
static const mbedtls_cipher_info_t aes_192_cbc_info = {
MBEDTLS_CIPHER_AES_192_CBC,
MBEDTLS_MODE_CBC,
192,
"AES-192-CBC",
16,
0,
16,
&aes_info
};
static const mbedtls_cipher_info_t aes_256_cbc_info = {
MBEDTLS_CIPHER_AES_256_CBC,
MBEDTLS_MODE_CBC,
256,
"AES-256-CBC",
16,
0,
16,
&aes_info
};
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_CIPHER_MODE_CFB)
static const mbedtls_cipher_info_t aes_128_cfb128_info = {
MBEDTLS_CIPHER_AES_128_CFB128,
MBEDTLS_MODE_CFB,
128,
"AES-128-CFB128",
16,
0,
16,
&aes_info
};
static const mbedtls_cipher_info_t aes_192_cfb128_info = {
MBEDTLS_CIPHER_AES_192_CFB128,
MBEDTLS_MODE_CFB,
192,
"AES-192-CFB128",
16,
0,
16,
&aes_info
};
static const mbedtls_cipher_info_t aes_256_cfb128_info = {
MBEDTLS_CIPHER_AES_256_CFB128,
MBEDTLS_MODE_CFB,
256,
"AES-256-CFB128",
16,
0,
16,
&aes_info
};
#endif /* MBEDTLS_CIPHER_MODE_CFB */
#if defined(MBEDTLS_CIPHER_MODE_CTR)
static const mbedtls_cipher_info_t aes_128_ctr_info = {
MBEDTLS_CIPHER_AES_128_CTR,
MBEDTLS_MODE_CTR,
128,
"AES-128-CTR",
16,
0,
16,
&aes_info
};
static const mbedtls_cipher_info_t aes_192_ctr_info = {
MBEDTLS_CIPHER_AES_192_CTR,
MBEDTLS_MODE_CTR,
192,
"AES-192-CTR",
16,
0,
16,
&aes_info
};
static const mbedtls_cipher_info_t aes_256_ctr_info = {
MBEDTLS_CIPHER_AES_256_CTR,
MBEDTLS_MODE_CTR,
256,
"AES-256-CTR",
16,
0,
16,
&aes_info
};
#endif /* MBEDTLS_CIPHER_MODE_CTR */
#if defined(MBEDTLS_GCM_C)
static int gcm_aes_setkey_wrap( void *ctx, const unsigned char *key,
unsigned int key_bitlen )
{
return mbedtls_gcm_setkey( (mbedtls_gcm_context *) ctx, MBEDTLS_CIPHER_ID_AES,
key, key_bitlen );
}
static const mbedtls_cipher_base_t gcm_aes_info = {
MBEDTLS_CIPHER_ID_AES,
NULL,
#if defined(MBEDTLS_CIPHER_MODE_CBC)
NULL,
#endif
#if defined(MBEDTLS_CIPHER_MODE_CFB)
NULL,
#endif
#if defined(MBEDTLS_CIPHER_MODE_CTR)
NULL,
#endif
#if defined(MBEDTLS_CIPHER_MODE_STREAM)
NULL,
#endif
gcm_aes_setkey_wrap,
gcm_aes_setkey_wrap,
gcm_ctx_alloc,
gcm_ctx_free,
};
static const mbedtls_cipher_info_t aes_128_gcm_info = {
MBEDTLS_CIPHER_AES_128_GCM,
MBEDTLS_MODE_GCM,
128,
"AES-128-GCM",
12,
MBEDTLS_CIPHER_VARIABLE_IV_LEN,
16,
&gcm_aes_info
};
static const mbedtls_cipher_info_t aes_192_gcm_info = {
MBEDTLS_CIPHER_AES_192_GCM,
MBEDTLS_MODE_GCM,
192,
"AES-192-GCM",
12,
MBEDTLS_CIPHER_VARIABLE_IV_LEN,
16,
&gcm_aes_info
};
static const mbedtls_cipher_info_t aes_256_gcm_info = {
MBEDTLS_CIPHER_AES_256_GCM,
MBEDTLS_MODE_GCM,
256,
"AES-256-GCM",
12,
MBEDTLS_CIPHER_VARIABLE_IV_LEN,
16,
&gcm_aes_info
};
#endif /* MBEDTLS_GCM_C */
#if defined(MBEDTLS_CCM_C)
static int ccm_aes_setkey_wrap( void *ctx, const unsigned char *key,
unsigned int key_bitlen )
{
return mbedtls_ccm_setkey( (mbedtls_ccm_context *) ctx, MBEDTLS_CIPHER_ID_AES,
key, key_bitlen );
}
static const mbedtls_cipher_base_t ccm_aes_info = {
MBEDTLS_CIPHER_ID_AES,
NULL,
#if defined(MBEDTLS_CIPHER_MODE_CBC)
NULL,
#endif
#if defined(MBEDTLS_CIPHER_MODE_CFB)
NULL,
#endif
#if defined(MBEDTLS_CIPHER_MODE_CTR)
NULL,
#endif
#if defined(MBEDTLS_CIPHER_MODE_STREAM)
NULL,
#endif
ccm_aes_setkey_wrap,
ccm_aes_setkey_wrap,
ccm_ctx_alloc,
ccm_ctx_free,
};
static const mbedtls_cipher_info_t aes_128_ccm_info = {
MBEDTLS_CIPHER_AES_128_CCM,
MBEDTLS_MODE_CCM,
128,
"AES-128-CCM",
12,
MBEDTLS_CIPHER_VARIABLE_IV_LEN,
16,
&ccm_aes_info
};
static const mbedtls_cipher_info_t aes_192_ccm_info = {
MBEDTLS_CIPHER_AES_192_CCM,
MBEDTLS_MODE_CCM,
192,
"AES-192-CCM",
12,
MBEDTLS_CIPHER_VARIABLE_IV_LEN,
16,
&ccm_aes_info
};
static const mbedtls_cipher_info_t aes_256_ccm_info = {
MBEDTLS_CIPHER_AES_256_CCM,
MBEDTLS_MODE_CCM,
256,
"AES-256-CCM",
12,
MBEDTLS_CIPHER_VARIABLE_IV_LEN,
16,
&ccm_aes_info
};
#endif /* MBEDTLS_CCM_C */
#endif /* MBEDTLS_AES_C */
#if defined(MBEDTLS_CAMELLIA_C)
static int camellia_crypt_ecb_wrap( void *ctx, mbedtls_operation_t operation,
const unsigned char *input, unsigned char *output )
{
return mbedtls_camellia_crypt_ecb( (mbedtls_camellia_context *) ctx, operation, input,
output );
}
#if defined(MBEDTLS_CIPHER_MODE_CBC)
static int camellia_crypt_cbc_wrap( void *ctx, mbedtls_operation_t operation,
size_t length, unsigned char *iv,
const unsigned char *input, unsigned char *output )
{
return mbedtls_camellia_crypt_cbc( (mbedtls_camellia_context *) ctx, operation, length, iv,
input, output );
}
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_CIPHER_MODE_CFB)
static int camellia_crypt_cfb128_wrap( void *ctx, mbedtls_operation_t operation,
size_t length, size_t *iv_off, unsigned char *iv,
const unsigned char *input, unsigned char *output )
{
return mbedtls_camellia_crypt_cfb128( (mbedtls_camellia_context *) ctx, operation, length,
iv_off, iv, input, output );
}
#endif /* MBEDTLS_CIPHER_MODE_CFB */
#if defined(MBEDTLS_CIPHER_MODE_CTR)
static int camellia_crypt_ctr_wrap( void *ctx, size_t length, size_t *nc_off,
unsigned char *nonce_counter, unsigned char *stream_block,
const unsigned char *input, unsigned char *output )
{
return mbedtls_camellia_crypt_ctr( (mbedtls_camellia_context *) ctx, length, nc_off,
nonce_counter, stream_block, input, output );
}
#endif /* MBEDTLS_CIPHER_MODE_CTR */
static int camellia_setkey_dec_wrap( void *ctx, const unsigned char *key,
unsigned int key_bitlen )
{
return mbedtls_camellia_setkey_dec( (mbedtls_camellia_context *) ctx, key, key_bitlen );
}
static int camellia_setkey_enc_wrap( void *ctx, const unsigned char *key,
unsigned int key_bitlen )
{
return mbedtls_camellia_setkey_enc( (mbedtls_camellia_context *) ctx, key, key_bitlen );
}
static void * camellia_ctx_alloc( void )
{
mbedtls_camellia_context *ctx;
ctx = mbedtls_calloc( 1, sizeof( mbedtls_camellia_context ) );
if( ctx == NULL )
return( NULL );
mbedtls_camellia_init( ctx );
return( ctx );
}
static void camellia_ctx_free( void *ctx )
{
mbedtls_camellia_free( (mbedtls_camellia_context *) ctx );
mbedtls_free( ctx );
}
static const mbedtls_cipher_base_t camellia_info = {
MBEDTLS_CIPHER_ID_CAMELLIA,
camellia_crypt_ecb_wrap,
#if defined(MBEDTLS_CIPHER_MODE_CBC)
camellia_crypt_cbc_wrap,
#endif
#if defined(MBEDTLS_CIPHER_MODE_CFB)
camellia_crypt_cfb128_wrap,
#endif
#if defined(MBEDTLS_CIPHER_MODE_CTR)
camellia_crypt_ctr_wrap,
#endif
#if defined(MBEDTLS_CIPHER_MODE_STREAM)
NULL,
#endif
camellia_setkey_enc_wrap,
camellia_setkey_dec_wrap,
camellia_ctx_alloc,
camellia_ctx_free
};
static const mbedtls_cipher_info_t camellia_128_ecb_info = {
MBEDTLS_CIPHER_CAMELLIA_128_ECB,
MBEDTLS_MODE_ECB,
128,
"CAMELLIA-128-ECB",
16,
0,
16,
&camellia_info
};
static const mbedtls_cipher_info_t camellia_192_ecb_info = {
MBEDTLS_CIPHER_CAMELLIA_192_ECB,
MBEDTLS_MODE_ECB,
192,
"CAMELLIA-192-ECB",
16,
0,
16,
&camellia_info
};
static const mbedtls_cipher_info_t camellia_256_ecb_info = {
MBEDTLS_CIPHER_CAMELLIA_256_ECB,
MBEDTLS_MODE_ECB,
256,
"CAMELLIA-256-ECB",
16,
0,
16,
&camellia_info
};
#if defined(MBEDTLS_CIPHER_MODE_CBC)
static const mbedtls_cipher_info_t camellia_128_cbc_info = {
MBEDTLS_CIPHER_CAMELLIA_128_CBC,
MBEDTLS_MODE_CBC,
128,
"CAMELLIA-128-CBC",
16,
0,
16,
&camellia_info
};
static const mbedtls_cipher_info_t camellia_192_cbc_info = {
MBEDTLS_CIPHER_CAMELLIA_192_CBC,
MBEDTLS_MODE_CBC,
192,
"CAMELLIA-192-CBC",
16,
0,
16,
&camellia_info
};
static const mbedtls_cipher_info_t camellia_256_cbc_info = {
MBEDTLS_CIPHER_CAMELLIA_256_CBC,
MBEDTLS_MODE_CBC,
256,
"CAMELLIA-256-CBC",
16,
0,
16,
&camellia_info
};
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_CIPHER_MODE_CFB)
static const mbedtls_cipher_info_t camellia_128_cfb128_info = {
MBEDTLS_CIPHER_CAMELLIA_128_CFB128,
MBEDTLS_MODE_CFB,
128,
"CAMELLIA-128-CFB128",
16,
0,
16,
&camellia_info
};
static const mbedtls_cipher_info_t camellia_192_cfb128_info = {
MBEDTLS_CIPHER_CAMELLIA_192_CFB128,
MBEDTLS_MODE_CFB,
192,
"CAMELLIA-192-CFB128",
16,
0,
16,
&camellia_info
};
static const mbedtls_cipher_info_t camellia_256_cfb128_info = {
MBEDTLS_CIPHER_CAMELLIA_256_CFB128,
MBEDTLS_MODE_CFB,
256,
"CAMELLIA-256-CFB128",
16,
0,
16,
&camellia_info
};
#endif /* MBEDTLS_CIPHER_MODE_CFB */
#if defined(MBEDTLS_CIPHER_MODE_CTR)
static const mbedtls_cipher_info_t camellia_128_ctr_info = {
MBEDTLS_CIPHER_CAMELLIA_128_CTR,
MBEDTLS_MODE_CTR,
128,
"CAMELLIA-128-CTR",
16,
0,
16,
&camellia_info
};
static const mbedtls_cipher_info_t camellia_192_ctr_info = {
MBEDTLS_CIPHER_CAMELLIA_192_CTR,
MBEDTLS_MODE_CTR,
192,
"CAMELLIA-192-CTR",
16,
0,
16,
&camellia_info
};
static const mbedtls_cipher_info_t camellia_256_ctr_info = {
MBEDTLS_CIPHER_CAMELLIA_256_CTR,
MBEDTLS_MODE_CTR,
256,
"CAMELLIA-256-CTR",
16,
0,
16,
&camellia_info
};
#endif /* MBEDTLS_CIPHER_MODE_CTR */
#if defined(MBEDTLS_GCM_C)
static int gcm_camellia_setkey_wrap( void *ctx, const unsigned char *key,
unsigned int key_bitlen )
{
return mbedtls_gcm_setkey( (mbedtls_gcm_context *) ctx, MBEDTLS_CIPHER_ID_CAMELLIA,
key, key_bitlen );
}
static const mbedtls_cipher_base_t gcm_camellia_info = {
MBEDTLS_CIPHER_ID_CAMELLIA,
NULL,
#if defined(MBEDTLS_CIPHER_MODE_CBC)
NULL,
#endif
#if defined(MBEDTLS_CIPHER_MODE_CFB)
NULL,
#endif
#if defined(MBEDTLS_CIPHER_MODE_CTR)
NULL,
#endif
#if defined(MBEDTLS_CIPHER_MODE_STREAM)
NULL,
#endif
gcm_camellia_setkey_wrap,
gcm_camellia_setkey_wrap,
gcm_ctx_alloc,
gcm_ctx_free,
};
static const mbedtls_cipher_info_t camellia_128_gcm_info = {
MBEDTLS_CIPHER_CAMELLIA_128_GCM,
MBEDTLS_MODE_GCM,
128,
"CAMELLIA-128-GCM",
12,
MBEDTLS_CIPHER_VARIABLE_IV_LEN,
16,
&gcm_camellia_info
};
static const mbedtls_cipher_info_t camellia_192_gcm_info = {
MBEDTLS_CIPHER_CAMELLIA_192_GCM,
MBEDTLS_MODE_GCM,
192,
"CAMELLIA-192-GCM",
12,
MBEDTLS_CIPHER_VARIABLE_IV_LEN,
16,
&gcm_camellia_info
};
static const mbedtls_cipher_info_t camellia_256_gcm_info = {
MBEDTLS_CIPHER_CAMELLIA_256_GCM,
MBEDTLS_MODE_GCM,
256,
"CAMELLIA-256-GCM",
12,
MBEDTLS_CIPHER_VARIABLE_IV_LEN,
16,
&gcm_camellia_info
};
#endif /* MBEDTLS_GCM_C */
#if defined(MBEDTLS_CCM_C)
static int ccm_camellia_setkey_wrap( void *ctx, const unsigned char *key,
unsigned int key_bitlen )
{
return mbedtls_ccm_setkey( (mbedtls_ccm_context *) ctx, MBEDTLS_CIPHER_ID_CAMELLIA,
key, key_bitlen );
}
static const mbedtls_cipher_base_t ccm_camellia_info = {
MBEDTLS_CIPHER_ID_CAMELLIA,
NULL,
#if defined(MBEDTLS_CIPHER_MODE_CBC)
NULL,
#endif
#if defined(MBEDTLS_CIPHER_MODE_CFB)
NULL,
#endif
#if defined(MBEDTLS_CIPHER_MODE_CTR)
NULL,
#endif
#if defined(MBEDTLS_CIPHER_MODE_STREAM)
NULL,
#endif
ccm_camellia_setkey_wrap,
ccm_camellia_setkey_wrap,
ccm_ctx_alloc,
ccm_ctx_free,
};
static const mbedtls_cipher_info_t camellia_128_ccm_info = {
MBEDTLS_CIPHER_CAMELLIA_128_CCM,
MBEDTLS_MODE_CCM,
128,
"CAMELLIA-128-CCM",
12,
MBEDTLS_CIPHER_VARIABLE_IV_LEN,
16,
&ccm_camellia_info
};
static const mbedtls_cipher_info_t camellia_192_ccm_info = {
MBEDTLS_CIPHER_CAMELLIA_192_CCM,
MBEDTLS_MODE_CCM,
192,
"CAMELLIA-192-CCM",
12,
MBEDTLS_CIPHER_VARIABLE_IV_LEN,
16,
&ccm_camellia_info
};
static const mbedtls_cipher_info_t camellia_256_ccm_info = {
MBEDTLS_CIPHER_CAMELLIA_256_CCM,
MBEDTLS_MODE_CCM,
256,
"CAMELLIA-256-CCM",
12,
MBEDTLS_CIPHER_VARIABLE_IV_LEN,
16,
&ccm_camellia_info
};
#endif /* MBEDTLS_CCM_C */
#endif /* MBEDTLS_CAMELLIA_C */
#if defined(MBEDTLS_DES_C)
static int des_crypt_ecb_wrap( void *ctx, mbedtls_operation_t operation,
const unsigned char *input, unsigned char *output )
{
((void) operation);
return mbedtls_des_crypt_ecb( (mbedtls_des_context *) ctx, input, output );
}
static int des3_crypt_ecb_wrap( void *ctx, mbedtls_operation_t operation,
const unsigned char *input, unsigned char *output )
{
((void) operation);
return mbedtls_des3_crypt_ecb( (mbedtls_des3_context *) ctx, input, output );
}
#if defined(MBEDTLS_CIPHER_MODE_CBC)
static int des_crypt_cbc_wrap( void *ctx, mbedtls_operation_t operation, size_t length,
unsigned char *iv, const unsigned char *input, unsigned char *output )
{
return mbedtls_des_crypt_cbc( (mbedtls_des_context *) ctx, operation, length, iv, input,
output );
}
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_CIPHER_MODE_CBC)
static int des3_crypt_cbc_wrap( void *ctx, mbedtls_operation_t operation, size_t length,
unsigned char *iv, const unsigned char *input, unsigned char *output )
{
return mbedtls_des3_crypt_cbc( (mbedtls_des3_context *) ctx, operation, length, iv, input,
output );
}
#endif /* MBEDTLS_CIPHER_MODE_CBC */
static int des_setkey_dec_wrap( void *ctx, const unsigned char *key,
unsigned int key_bitlen )
{
((void) key_bitlen);
return mbedtls_des_setkey_dec( (mbedtls_des_context *) ctx, key );
}
static int des_setkey_enc_wrap( void *ctx, const unsigned char *key,
unsigned int key_bitlen )
{
((void) key_bitlen);
return mbedtls_des_setkey_enc( (mbedtls_des_context *) ctx, key );
}
static int des3_set2key_dec_wrap( void *ctx, const unsigned char *key,
unsigned int key_bitlen )
{
((void) key_bitlen);
return mbedtls_des3_set2key_dec( (mbedtls_des3_context *) ctx, key );
}
static int des3_set2key_enc_wrap( void *ctx, const unsigned char *key,
unsigned int key_bitlen )
{
((void) key_bitlen);
return mbedtls_des3_set2key_enc( (mbedtls_des3_context *) ctx, key );
}
static int des3_set3key_dec_wrap( void *ctx, const unsigned char *key,
unsigned int key_bitlen )
{
((void) key_bitlen);
return mbedtls_des3_set3key_dec( (mbedtls_des3_context *) ctx, key );
}
static int des3_set3key_enc_wrap( void *ctx, const unsigned char *key,
unsigned int key_bitlen )
{
((void) key_bitlen);
return mbedtls_des3_set3key_enc( (mbedtls_des3_context *) ctx, key );
}
static void * des_ctx_alloc( void )
{
mbedtls_des_context *des = mbedtls_calloc( 1, sizeof( mbedtls_des_context ) );
if( des == NULL )
return( NULL );
mbedtls_des_init( des );
return( des );
}
static void des_ctx_free( void *ctx )
{
mbedtls_des_free( (mbedtls_des_context *) ctx );
mbedtls_free( ctx );
}
static void * des3_ctx_alloc( void )
{
mbedtls_des3_context *des3;
des3 = mbedtls_calloc( 1, sizeof( mbedtls_des3_context ) );
if( des3 == NULL )
return( NULL );
mbedtls_des3_init( des3 );
return( des3 );
}
static void des3_ctx_free( void *ctx )
{
mbedtls_des3_free( (mbedtls_des3_context *) ctx );
mbedtls_free( ctx );
}
static const mbedtls_cipher_base_t des_info = {
MBEDTLS_CIPHER_ID_DES,
des_crypt_ecb_wrap,
#if defined(MBEDTLS_CIPHER_MODE_CBC)
des_crypt_cbc_wrap,
#endif
#if defined(MBEDTLS_CIPHER_MODE_CFB)
NULL,
#endif
#if defined(MBEDTLS_CIPHER_MODE_CTR)
NULL,
#endif
#if defined(MBEDTLS_CIPHER_MODE_STREAM)
NULL,
#endif
des_setkey_enc_wrap,
des_setkey_dec_wrap,
des_ctx_alloc,
des_ctx_free
};
static const mbedtls_cipher_info_t des_ecb_info = {
MBEDTLS_CIPHER_DES_ECB,
MBEDTLS_MODE_ECB,
MBEDTLS_KEY_LENGTH_DES,
"DES-ECB",
8,
0,
8,
&des_info
};
#if defined(MBEDTLS_CIPHER_MODE_CBC)
static const mbedtls_cipher_info_t des_cbc_info = {
MBEDTLS_CIPHER_DES_CBC,
MBEDTLS_MODE_CBC,
MBEDTLS_KEY_LENGTH_DES,
"DES-CBC",
8,
0,
8,
&des_info
};
#endif /* MBEDTLS_CIPHER_MODE_CBC */
static const mbedtls_cipher_base_t des_ede_info = {
MBEDTLS_CIPHER_ID_DES,
des3_crypt_ecb_wrap,
#if defined(MBEDTLS_CIPHER_MODE_CBC)
des3_crypt_cbc_wrap,
#endif
#if defined(MBEDTLS_CIPHER_MODE_CFB)
NULL,
#endif
#if defined(MBEDTLS_CIPHER_MODE_CTR)
NULL,
#endif
#if defined(MBEDTLS_CIPHER_MODE_STREAM)
NULL,