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mbedtls/library/cipher_wrap.c
Manuel Pégourié-Gonnard dace82f805 Refactor cipher information management
2013-09-18 15:37:44 +02:00

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/**
* \file cipher_wrap.c
*
* \brief Generic cipher wrapper for PolarSSL
*
* \author Adriaan de Jong <dejong@fox-it.com>
*
* Copyright (C) 2006-2013, Brainspark B.V.
*
* This file is part of PolarSSL (http://www.polarssl.org)
* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
*
* All rights reserved.
*
* 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.
*/
#include "polarssl/config.h"
#if defined(POLARSSL_CIPHER_C)
#include "polarssl/cipher_wrap.h"
#if defined(POLARSSL_AES_C)
#include "polarssl/aes.h"
#endif
#if defined(POLARSSL_ARC4_C)
#include "polarssl/arc4.h"
#endif
#if defined(POLARSSL_CAMELLIA_C)
#include "polarssl/camellia.h"
#endif
#if defined(POLARSSL_DES_C)
#include "polarssl/des.h"
#endif
#if defined(POLARSSL_BLOWFISH_C)
#include "polarssl/blowfish.h"
#endif
#if defined(POLARSSL_GCM_C)
#include "polarssl/gcm.h"
#endif
#if defined(POLARSSL_MEMORY_C)
#include "polarssl/memory.h"
#else
#define polarssl_malloc malloc
#define polarssl_free free
#endif
#include <stdlib.h>
#if defined(POLARSSL_AES_C)
static int aes_crypt_ecb_wrap( void *ctx, operation_t operation,
const unsigned char *input, unsigned char *output )
{
return aes_crypt_ecb( (aes_context *) ctx, operation, input, output );
}
static int aes_crypt_cbc_wrap( void *ctx, operation_t operation, size_t length,
unsigned char *iv, const unsigned char *input, unsigned char *output )
{
#if defined(POLARSSL_CIPHER_MODE_CBC)
return aes_crypt_cbc( (aes_context *) ctx, operation, length, iv, input, output );
#else
((void) ctx);
((void) operation);
((void) length);
((void) iv);
((void) input);
((void) output);
return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
#endif /* POLARSSL_CIPHER_MODE_CBC */
}
static int aes_crypt_cfb128_wrap( void *ctx, operation_t operation, size_t length,
size_t *iv_off, unsigned char *iv, const unsigned char *input, unsigned char *output )
{
#if defined(POLARSSL_CIPHER_MODE_CFB)
return aes_crypt_cfb128( (aes_context *) ctx, operation, length, iv_off, iv, input, output );
#else
((void) ctx);
((void) operation);
((void) length);
((void) iv_off);
((void) iv);
((void) input);
((void) output);
return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
#endif
}
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 )
{
#if defined(POLARSSL_CIPHER_MODE_CTR)
return aes_crypt_ctr( (aes_context *) ctx, length, nc_off, nonce_counter,
stream_block, input, output );
#else
((void) ctx);
((void) length);
((void) nc_off);
((void) nonce_counter);
((void) stream_block);
((void) input);
((void) output);
return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
#endif
}
static int aes_setkey_dec_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
{
return aes_setkey_dec( (aes_context *) ctx, key, key_length );
}
static int aes_setkey_enc_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
{
return aes_setkey_enc( (aes_context *) ctx, key, key_length );
}
static void * aes_ctx_alloc( void )
{
return polarssl_malloc( sizeof( aes_context ) );
}
static void aes_ctx_free( void *ctx )
{
polarssl_free( ctx );
}
const cipher_base_t aes_info = {
POLARSSL_CIPHER_ID_AES,
aes_crypt_ecb_wrap,
aes_crypt_cbc_wrap,
aes_crypt_cfb128_wrap,
aes_crypt_ctr_wrap,
NULL,
aes_setkey_enc_wrap,
aes_setkey_dec_wrap,
aes_ctx_alloc,
aes_ctx_free
};
const cipher_info_t aes_128_ecb_info = {
POLARSSL_CIPHER_AES_128_ECB,
POLARSSL_MODE_ECB,
128,
"AES-128-ECB",
16,
0,
16,
&aes_info
};
const cipher_info_t aes_192_ecb_info = {
POLARSSL_CIPHER_AES_192_ECB,
POLARSSL_MODE_ECB,
192,
"AES-192-ECB",
16,
0,
16,
&aes_info
};
const cipher_info_t aes_256_ecb_info = {
POLARSSL_CIPHER_AES_256_ECB,
POLARSSL_MODE_ECB,
256,
"AES-256-ECB",
16,
0,
16,
&aes_info
};
#if defined(POLARSSL_CIPHER_MODE_CBC)
const cipher_info_t aes_128_cbc_info = {
POLARSSL_CIPHER_AES_128_CBC,
POLARSSL_MODE_CBC,
128,
"AES-128-CBC",
16,
0,
16,
&aes_info
};
const cipher_info_t aes_192_cbc_info = {
POLARSSL_CIPHER_AES_192_CBC,
POLARSSL_MODE_CBC,
192,
"AES-192-CBC",
16,
0,
16,
&aes_info
};
const cipher_info_t aes_256_cbc_info = {
POLARSSL_CIPHER_AES_256_CBC,
POLARSSL_MODE_CBC,
256,
"AES-256-CBC",
16,
0,
16,
&aes_info
};
#endif /* POLARSSL_CIPHER_MODE_CBC */
#if defined(POLARSSL_CIPHER_MODE_CFB)
const cipher_info_t aes_128_cfb128_info = {
POLARSSL_CIPHER_AES_128_CFB128,
POLARSSL_MODE_CFB,
128,
"AES-128-CFB128",
16,
0,
16,
&aes_info
};
const cipher_info_t aes_192_cfb128_info = {
POLARSSL_CIPHER_AES_192_CFB128,
POLARSSL_MODE_CFB,
192,
"AES-192-CFB128",
16,
0,
16,
&aes_info
};
const cipher_info_t aes_256_cfb128_info = {
POLARSSL_CIPHER_AES_256_CFB128,
POLARSSL_MODE_CFB,
256,
"AES-256-CFB128",
16,
0,
16,
&aes_info
};
#endif /* POLARSSL_CIPHER_MODE_CFB */
#if defined(POLARSSL_CIPHER_MODE_CTR)
const cipher_info_t aes_128_ctr_info = {
POLARSSL_CIPHER_AES_128_CTR,
POLARSSL_MODE_CTR,
128,
"AES-128-CTR",
16,
0,
16,
&aes_info
};
const cipher_info_t aes_192_ctr_info = {
POLARSSL_CIPHER_AES_192_CTR,
POLARSSL_MODE_CTR,
192,
"AES-192-CTR",
16,
0,
16,
&aes_info
};
const cipher_info_t aes_256_ctr_info = {
POLARSSL_CIPHER_AES_256_CTR,
POLARSSL_MODE_CTR,
256,
"AES-256-CTR",
16,
0,
16,
&aes_info
};
#endif /* POLARSSL_CIPHER_MODE_CTR */
#if defined(POLARSSL_GCM_C)
static void *gcm_ctx_alloc( void )
{
return polarssl_malloc( sizeof( gcm_context ) );
}
static void gcm_ctx_free( void *ctx )
{
gcm_free( ctx );
polarssl_free( ctx );
}
static int gcm_aes_setkey_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
{
return gcm_init( (gcm_context *) ctx, POLARSSL_CIPHER_ID_AES,
key, key_length );
}
const cipher_base_t gcm_aes_info = {
POLARSSL_CIPHER_ID_AES,
NULL,
NULL,
NULL,
NULL,
NULL,
gcm_aes_setkey_wrap,
gcm_aes_setkey_wrap,
gcm_ctx_alloc,
gcm_ctx_free,
};
const cipher_info_t aes_128_gcm_info = {
POLARSSL_CIPHER_AES_128_GCM,
POLARSSL_MODE_GCM,
128,
"AES-128-GCM",
12,
1,
16,
&gcm_aes_info
};
const cipher_info_t aes_192_gcm_info = {
POLARSSL_CIPHER_AES_192_GCM,
POLARSSL_MODE_GCM,
192,
"AES-192-GCM",
12,
1,
16,
&gcm_aes_info
};
const cipher_info_t aes_256_gcm_info = {
POLARSSL_CIPHER_AES_256_GCM,
POLARSSL_MODE_GCM,
256,
"AES-256-GCM",
12,
1,
16,
&gcm_aes_info
};
#endif /* POLARSSL_GCM_C */
#endif
#if defined(POLARSSL_CAMELLIA_C)
static int camellia_crypt_ecb_wrap( void *ctx, operation_t operation,
const unsigned char *input, unsigned char *output )
{
return camellia_crypt_ecb( (camellia_context *) ctx, operation, input, output );
}
static int camellia_crypt_cbc_wrap( void *ctx, operation_t operation, size_t length,
unsigned char *iv, const unsigned char *input, unsigned char *output )
{
#if defined(POLARSSL_CIPHER_MODE_CBC)
return camellia_crypt_cbc( (camellia_context *) ctx, operation, length, iv, input, output );
#else
((void) ctx);
((void) operation);
((void) length);
((void) iv);
((void) input);
((void) output);
return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
#endif /* POLARSSL_CIPHER_MODE_CBC */
}
static int camellia_crypt_cfb128_wrap( void *ctx, operation_t operation, size_t length,
size_t *iv_off, unsigned char *iv, const unsigned char *input, unsigned char *output )
{
#if defined(POLARSSL_CIPHER_MODE_CFB)
return camellia_crypt_cfb128( (camellia_context *) ctx, operation, length, iv_off, iv, input, output );
#else
((void) ctx);
((void) operation);
((void) length);
((void) iv_off);
((void) iv);
((void) input);
((void) output);
return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
#endif
}
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 )
{
#if defined(POLARSSL_CIPHER_MODE_CTR)
return camellia_crypt_ctr( (camellia_context *) ctx, length, nc_off, nonce_counter,
stream_block, input, output );
#else
((void) ctx);
((void) length);
((void) nc_off);
((void) nonce_counter);
((void) stream_block);
((void) input);
((void) output);
return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
#endif
}
static int camellia_setkey_dec_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
{
return camellia_setkey_dec( (camellia_context *) ctx, key, key_length );
}
static int camellia_setkey_enc_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
{
return camellia_setkey_enc( (camellia_context *) ctx, key, key_length );
}
static void * camellia_ctx_alloc( void )
{
return polarssl_malloc( sizeof( camellia_context ) );
}
static void camellia_ctx_free( void *ctx )
{
polarssl_free( ctx );
}
const cipher_base_t camellia_info = {
POLARSSL_CIPHER_ID_CAMELLIA,
camellia_crypt_ecb_wrap,
camellia_crypt_cbc_wrap,
camellia_crypt_cfb128_wrap,
camellia_crypt_ctr_wrap,
NULL,
camellia_setkey_enc_wrap,
camellia_setkey_dec_wrap,
camellia_ctx_alloc,
camellia_ctx_free
};
const cipher_info_t camellia_128_ecb_info = {
POLARSSL_CIPHER_CAMELLIA_128_ECB,
POLARSSL_MODE_ECB,
128,
"CAMELLIA-128-ECB",
16,
0,
16,
&camellia_info
};
const cipher_info_t camellia_192_ecb_info = {
POLARSSL_CIPHER_CAMELLIA_192_ECB,
POLARSSL_MODE_ECB,
192,
"CAMELLIA-192-ECB",
16,
0,
16,
&camellia_info
};
const cipher_info_t camellia_256_ecb_info = {
POLARSSL_CIPHER_CAMELLIA_256_ECB,
POLARSSL_MODE_ECB,
256,
"CAMELLIA-256-ECB",
16,
0,
16,
&camellia_info
};
#if defined(POLARSSL_CIPHER_MODE_CBC)
const cipher_info_t camellia_128_cbc_info = {
POLARSSL_CIPHER_CAMELLIA_128_CBC,
POLARSSL_MODE_CBC,
128,
"CAMELLIA-128-CBC",
16,
0,
16,
&camellia_info
};
const cipher_info_t camellia_192_cbc_info = {
POLARSSL_CIPHER_CAMELLIA_192_CBC,
POLARSSL_MODE_CBC,
192,
"CAMELLIA-192-CBC",
16,
0,
16,
&camellia_info
};
const cipher_info_t camellia_256_cbc_info = {
POLARSSL_CIPHER_CAMELLIA_256_CBC,
POLARSSL_MODE_CBC,
256,
"CAMELLIA-256-CBC",
16,
0,
16,
&camellia_info
};
#endif /* POLARSSL_CIPHER_MODE_CBC */
#if defined(POLARSSL_CIPHER_MODE_CFB)
const cipher_info_t camellia_128_cfb128_info = {
POLARSSL_CIPHER_CAMELLIA_128_CFB128,
POLARSSL_MODE_CFB,
128,
"CAMELLIA-128-CFB128",
16,
0,
16,
&camellia_info
};
const cipher_info_t camellia_192_cfb128_info = {
POLARSSL_CIPHER_CAMELLIA_192_CFB128,
POLARSSL_MODE_CFB,
192,
"CAMELLIA-192-CFB128",
16,
0,
16,
&camellia_info
};
const cipher_info_t camellia_256_cfb128_info = {
POLARSSL_CIPHER_CAMELLIA_256_CFB128,
POLARSSL_MODE_CFB,
256,
"CAMELLIA-256-CFB128",
16,
0,
16,
&camellia_info
};
#endif /* POLARSSL_CIPHER_MODE_CFB */
#if defined(POLARSSL_CIPHER_MODE_CTR)
const cipher_info_t camellia_128_ctr_info = {
POLARSSL_CIPHER_CAMELLIA_128_CTR,
POLARSSL_MODE_CTR,
128,
"CAMELLIA-128-CTR",
16,
0,
16,
&camellia_info
};
const cipher_info_t camellia_192_ctr_info = {
POLARSSL_CIPHER_CAMELLIA_192_CTR,
POLARSSL_MODE_CTR,
192,
"CAMELLIA-192-CTR",
16,
0,
16,
&camellia_info
};
const cipher_info_t camellia_256_ctr_info = {
POLARSSL_CIPHER_CAMELLIA_256_CTR,
POLARSSL_MODE_CTR,
256,
"CAMELLIA-256-CTR",
16,
0,
16,
&camellia_info
};
#endif /* POLARSSL_CIPHER_MODE_CTR */
#endif
#if defined(POLARSSL_DES_C)
static int des_crypt_ecb_wrap( void *ctx, operation_t operation,
const unsigned char *input, unsigned char *output )
{
((void) operation);
return des_crypt_ecb( (des_context *) ctx, input, output );
}
static int des3_crypt_ecb_wrap( void *ctx, operation_t operation,
const unsigned char *input, unsigned char *output )
{
((void) operation);
return des3_crypt_ecb( (des3_context *) ctx, input, output );
}
static int des_crypt_cbc_wrap( void *ctx, operation_t operation, size_t length,
unsigned char *iv, const unsigned char *input, unsigned char *output )
{
#if defined(POLARSSL_CIPHER_MODE_CBC)
return des_crypt_cbc( (des_context *) ctx, operation, length, iv, input, output );
#else
((void) ctx);
((void) operation);
((void) length);
((void) iv);
((void) input);
((void) output);
return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
#endif /* POLARSSL_CIPHER_MODE_CBC */
}
static int des3_crypt_cbc_wrap( void *ctx, operation_t operation, size_t length,
unsigned char *iv, const unsigned char *input, unsigned char *output )
{
#if defined(POLARSSL_CIPHER_MODE_CBC)
return des3_crypt_cbc( (des3_context *) ctx, operation, length, iv, input, output );
#else
((void) ctx);
((void) operation);
((void) length);
((void) iv);
((void) input);
((void) output);
return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
#endif /* POLARSSL_CIPHER_MODE_CBC */
}
static int des_crypt_cfb128_wrap( void *ctx, operation_t operation, size_t length,
size_t *iv_off, unsigned char *iv, const unsigned char *input, unsigned char *output )
{
((void) ctx);
((void) operation);
((void) length);
((void) iv_off);
((void) iv);
((void) input);
((void) output);
return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
}
static int des_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 )
{
((void) ctx);
((void) length);
((void) nc_off);
((void) nonce_counter);
((void) stream_block);
((void) input);
((void) output);
return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
}
static int des_setkey_dec_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
{
((void) key_length);
return des_setkey_dec( (des_context *) ctx, key );
}
static int des_setkey_enc_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
{
((void) key_length);
return des_setkey_enc( (des_context *) ctx, key );
}
static int des3_set2key_dec_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
{
((void) key_length);
return des3_set2key_dec( (des3_context *) ctx, key );
}
static int des3_set2key_enc_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
{
((void) key_length);
return des3_set2key_enc( (des3_context *) ctx, key );
}
static int des3_set3key_dec_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
{
((void) key_length);
return des3_set3key_dec( (des3_context *) ctx, key );
}
static int des3_set3key_enc_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
{
((void) key_length);
return des3_set3key_enc( (des3_context *) ctx, key );
}
static void * des_ctx_alloc( void )
{
return polarssl_malloc( sizeof( des_context ) );
}
static void * des3_ctx_alloc( void )
{
return polarssl_malloc( sizeof( des3_context ) );
}
static void des_ctx_free( void *ctx )
{
polarssl_free( ctx );
}
const cipher_base_t des_info = {
POLARSSL_CIPHER_ID_DES,
des_crypt_ecb_wrap,
des_crypt_cbc_wrap,
des_crypt_cfb128_wrap,
des_crypt_ctr_wrap,
NULL,
des_setkey_enc_wrap,
des_setkey_dec_wrap,
des_ctx_alloc,
des_ctx_free
};
const cipher_info_t des_ecb_info = {
POLARSSL_CIPHER_DES_ECB,
POLARSSL_MODE_ECB,
POLARSSL_KEY_LENGTH_DES,
"DES-ECB",
8,
0,
8,
&des_info
};
#if defined(POLARSSL_CIPHER_MODE_CBC)
const cipher_info_t des_cbc_info = {
POLARSSL_CIPHER_DES_CBC,
POLARSSL_MODE_CBC,
POLARSSL_KEY_LENGTH_DES,
"DES-CBC",
8,
0,
8,
&des_info
};
#endif /* POLARSSL_CIPHER_MODE_CBC */
const cipher_base_t des_ede_info = {
POLARSSL_CIPHER_ID_DES,
des3_crypt_ecb_wrap,
des3_crypt_cbc_wrap,
des_crypt_cfb128_wrap,
des_crypt_ctr_wrap,
NULL,
des3_set2key_enc_wrap,
des3_set2key_dec_wrap,
des3_ctx_alloc,
des_ctx_free
};
const cipher_info_t des_ede_ecb_info = {
POLARSSL_CIPHER_DES_EDE_ECB,
POLARSSL_MODE_ECB,
POLARSSL_KEY_LENGTH_DES_EDE,
"DES-EDE-ECB",
8,
0,
8,
&des_ede_info
};
#if defined(POLARSSL_CIPHER_MODE_CBC)
const cipher_info_t des_ede_cbc_info = {
POLARSSL_CIPHER_DES_EDE_CBC,
POLARSSL_MODE_CBC,
POLARSSL_KEY_LENGTH_DES_EDE,
"DES-EDE-CBC",
8,
0,
8,
&des_ede_info
};
#endif /* POLARSSL_CIPHER_MODE_CBC */
const cipher_base_t des_ede3_info = {
POLARSSL_CIPHER_ID_DES,
des3_crypt_ecb_wrap,
des3_crypt_cbc_wrap,
des_crypt_cfb128_wrap,
des_crypt_ctr_wrap,
NULL,
des3_set3key_enc_wrap,
des3_set3key_dec_wrap,
des3_ctx_alloc,
des_ctx_free
};
const cipher_info_t des_ede3_ecb_info = {
POLARSSL_CIPHER_DES_EDE3_ECB,
POLARSSL_MODE_ECB,
POLARSSL_KEY_LENGTH_DES_EDE3,
"DES-EDE3-ECB",
8,
0,
8,
&des_ede3_info
};
#if defined(POLARSSL_CIPHER_MODE_CBC)
const cipher_info_t des_ede3_cbc_info = {
POLARSSL_CIPHER_DES_EDE3_CBC,
POLARSSL_MODE_CBC,
POLARSSL_KEY_LENGTH_DES_EDE3,
"DES-EDE3-CBC",
8,
0,
8,
&des_ede3_info
};
#endif /* POLARSSL_CIPHER_MODE_CBC */
#endif
#if defined(POLARSSL_BLOWFISH_C)
static int blowfish_crypt_ecb_wrap( void *ctx, operation_t operation,
const unsigned char *input, unsigned char *output )
{
return blowfish_crypt_ecb( (blowfish_context *) ctx, operation, input, output );
}
static int blowfish_crypt_cbc_wrap( void *ctx, operation_t operation, size_t length,
unsigned char *iv, const unsigned char *input, unsigned char *output )
{
#if defined(POLARSSL_CIPHER_MODE_CBC)
return blowfish_crypt_cbc( (blowfish_context *) ctx, operation, length, iv, input, output );
#else
((void) ctx);
((void) operation);
((void) length);
((void) iv);
((void) input);
((void) output);
return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
#endif /* POLARSSL_CIPHER_MODE_CBC */
}
static int blowfish_crypt_cfb64_wrap( void *ctx, operation_t operation, size_t length,
size_t *iv_off, unsigned char *iv, const unsigned char *input, unsigned char *output )
{
#if defined(POLARSSL_CIPHER_MODE_CFB)
return blowfish_crypt_cfb64( (blowfish_context *) ctx, operation, length, iv_off, iv, input, output );
#else
((void) ctx);
((void) operation);
((void) length);
((void) iv_off);
((void) iv);
((void) input);
((void) output);
return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
#endif
}
static int blowfish_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 )
{
#if defined(POLARSSL_CIPHER_MODE_CTR)
return blowfish_crypt_ctr( (blowfish_context *) ctx, length, nc_off, nonce_counter,
stream_block, input, output );
#else
((void) ctx);
((void) length);
((void) nc_off);
((void) nonce_counter);
((void) stream_block);
((void) input);
((void) output);
return POLARSSL_ERR_CIPHER_FEATURE_UNAVAILABLE;
#endif
}
static int blowfish_setkey_wrap( void *ctx, const unsigned char *key, unsigned int key_length )
{
return blowfish_setkey( (blowfish_context *) ctx, key, key_length );
}
static void * blowfish_ctx_alloc( void )
{
return polarssl_malloc( sizeof( blowfish_context ) );
}
static void blowfish_ctx_free( void *ctx )
{
polarssl_free( ctx );
}
const cipher_base_t blowfish_info = {
POLARSSL_CIPHER_ID_BLOWFISH,
blowfish_crypt_ecb_wrap,
blowfish_crypt_cbc_wrap,
blowfish_crypt_cfb64_wrap,
blowfish_crypt_ctr_wrap,
NULL,
blowfish_setkey_wrap,
blowfish_setkey_wrap,
blowfish_ctx_alloc,
blowfish_ctx_free
};
const cipher_info_t blowfish_ecb_info = {
POLARSSL_CIPHER_BLOWFISH_ECB,
POLARSSL_MODE_ECB,
128,
"BLOWFISH-ECB",
8,
0,
8,
&blowfish_info
};
#if defined(POLARSSL_CIPHER_MODE_CBC)
const cipher_info_t blowfish_cbc_info = {
POLARSSL_CIPHER_BLOWFISH_CBC,
POLARSSL_MODE_CBC,
128,
"BLOWFISH-CBC",
8,
0,
8,
&blowfish_info
};
#endif /* POLARSSL_CIPHER_MODE_CBC */
#if defined(POLARSSL_CIPHER_MODE_CFB)
const cipher_info_t blowfish_cfb64_info = {
POLARSSL_CIPHER_BLOWFISH_CFB64,
POLARSSL_MODE_CFB,
128,
"BLOWFISH-CFB64",
8,
0,
8,
&blowfish_info
};
#endif /* POLARSSL_CIPHER_MODE_CFB */
#if defined(POLARSSL_CIPHER_MODE_CTR)
const cipher_info_t blowfish_ctr_info = {
POLARSSL_CIPHER_BLOWFISH_CTR,
POLARSSL_MODE_CTR,
128,
"BLOWFISH-CTR",
8,
0,
8,
&blowfish_info
};
#endif /* POLARSSL_CIPHER_MODE_CTR */
#endif /* POLARSSL_BLOWFISH_C */
#if defined(POLARSSL_ARC4_C)
static int arc4_crypt_stream_wrap( void *ctx, size_t length,
const unsigned char *input,
unsigned char *output )
{
return( arc4_crypt( (arc4_context *) ctx, length, input, output ) );
}
static int arc4_setkey_wrap( void *ctx, const unsigned char *key,
unsigned int key_length )
{
/* we get key_length in bits, arc4 expects it in bytes */
if( key_length % 8 != 0)
return( POLARSSL_ERR_CIPHER_BAD_INPUT_DATA );
arc4_setup( (arc4_context *) ctx, key, key_length / 8 );
return( 0 );
}
static void * arc4_ctx_alloc( void )
{
return polarssl_malloc( sizeof( arc4_context ) );
}
static void arc4_ctx_free( void *ctx )
{
polarssl_free( ctx );
}
const cipher_base_t arc4_base_info = {
POLARSSL_CIPHER_ID_ARC4,
NULL,
NULL,
NULL,
NULL,
arc4_crypt_stream_wrap,
arc4_setkey_wrap,
arc4_setkey_wrap,
arc4_ctx_alloc,
arc4_ctx_free
};
const cipher_info_t arc4_128_info = {
POLARSSL_CIPHER_ARC4_128,
POLARSSL_MODE_STREAM,
128,
"ARC4-128",
0,
0,
1,
&arc4_base_info
};
#endif /* POLARSSL_ARC4_C */
#if defined(POLARSSL_CIPHER_NULL_CIPHER)
static int null_crypt_stream( void *ctx, size_t length,
const unsigned char *input,
unsigned char *output )
{
((void) ctx);
memmove( output, input, length );
return( 0 );
}
static int null_setkey( void *ctx, const unsigned char *key,
unsigned int key_length )
{
((void) ctx);
((void) key);
((void) key_length);
return( 0 );
}
static void * null_ctx_alloc( void )
{
return (void *) 1;
}
static void null_ctx_free( void *ctx )
{
((void) ctx);
}
const cipher_base_t null_base_info = {
POLARSSL_CIPHER_ID_NULL,
NULL,
NULL,
NULL,
NULL,
null_crypt_stream,
null_setkey,
null_setkey,
null_ctx_alloc,
null_ctx_free
};
const cipher_info_t null_cipher_info = {
POLARSSL_CIPHER_NULL,
POLARSSL_MODE_STREAM,
0,
"NULL",
0,
0,
1,
&null_base_info
};
#endif /* defined(POLARSSL_CIPHER_NULL_CIPHER) */
const cipher_definition_t cipher_definitions[] =
{
#if defined(POLARSSL_AES_C)
{ POLARSSL_CIPHER_AES_128_ECB, &aes_128_ecb_info },
{ POLARSSL_CIPHER_AES_192_ECB, &aes_192_ecb_info },
{ POLARSSL_CIPHER_AES_256_ECB, &aes_256_ecb_info },
#if defined(POLARSSL_CIPHER_MODE_CBC)
{ POLARSSL_CIPHER_AES_128_CBC, &aes_128_cbc_info },
{ POLARSSL_CIPHER_AES_192_CBC, &aes_192_cbc_info },
{ POLARSSL_CIPHER_AES_256_CBC, &aes_256_cbc_info },
#endif
#if defined(POLARSSL_CIPHER_MODE_CFB)
{ POLARSSL_CIPHER_AES_128_CFB128, &aes_128_cfb128_info },
{ POLARSSL_CIPHER_AES_192_CFB128, &aes_192_cfb128_info },
{ POLARSSL_CIPHER_AES_256_CFB128, &aes_256_cfb128_info },
#endif
#if defined(POLARSSL_CIPHER_MODE_CTR)
{ POLARSSL_CIPHER_AES_128_CTR, &aes_128_ctr_info },
{ POLARSSL_CIPHER_AES_192_CTR, &aes_192_ctr_info },
{ POLARSSL_CIPHER_AES_256_CTR, &aes_256_ctr_info },
#endif
#if defined(POLARSSL_GCM_C)
{ POLARSSL_CIPHER_AES_128_GCM, &aes_128_gcm_info },
{ POLARSSL_CIPHER_AES_192_GCM, &aes_192_gcm_info },
{ POLARSSL_CIPHER_AES_256_GCM, &aes_256_gcm_info },
#endif
#endif /* POLARSSL_AES_C */
#if defined(POLARSSL_ARC4_C)
{ POLARSSL_CIPHER_ARC4_128, &arc4_128_info },
#endif
#if defined(POLARSSL_BLOWFISH_C)
{ POLARSSL_CIPHER_BLOWFISH_ECB, &blowfish_ecb_info },
#if defined(POLARSSL_CIPHER_MODE_CBC)
{ POLARSSL_CIPHER_BLOWFISH_CBC, &blowfish_cbc_info },
#endif
#if defined(POLARSSL_CIPHER_MODE_CFB)
{ POLARSSL_CIPHER_BLOWFISH_CFB64, &blowfish_cfb64_info },
#endif
#if defined(POLARSSL_CIPHER_MODE_CTR)
{ POLARSSL_CIPHER_BLOWFISH_CTR, &blowfish_ctr_info },
#endif
#endif /* POLARSSL_BLOWFISH_C */
#if defined(POLARSSL_CAMELLIA_C)
{ POLARSSL_CIPHER_CAMELLIA_128_ECB, &camellia_128_ecb_info },
{ POLARSSL_CIPHER_CAMELLIA_192_ECB, &camellia_192_ecb_info },
#if defined(POLARSSL_CIPHER_MODE_CBC)
{ POLARSSL_CIPHER_CAMELLIA_128_CBC, &camellia_128_cbc_info },
{ POLARSSL_CIPHER_CAMELLIA_192_CBC, &camellia_192_cbc_info },
{ POLARSSL_CIPHER_CAMELLIA_256_CBC, &camellia_256_cbc_info },
#endif
#if defined(POLARSSL_CIPHER_MODE_CFB)
{ POLARSSL_CIPHER_CAMELLIA_128_CFB128, &camellia_128_cfb128_info },
{ POLARSSL_CIPHER_CAMELLIA_192_CFB128, &camellia_192_cfb128_info },
{ POLARSSL_CIPHER_CAMELLIA_256_CFB128, &camellia_256_cfb128_info },
#endif
#if defined(POLARSSL_CIPHER_MODE_CTR)
{ POLARSSL_CIPHER_CAMELLIA_128_CTR, &camellia_128_ctr_info },
{ POLARSSL_CIPHER_CAMELLIA_192_CTR, &camellia_192_ctr_info },
{ POLARSSL_CIPHER_CAMELLIA_256_CTR, &camellia_256_ctr_info },
#endif
#endif /* POLARSSL_CAMELLIA_C */
#if defined(POLARSSL_DES_C)
{ POLARSSL_CIPHER_DES_ECB, &des_ecb_info },
{ POLARSSL_CIPHER_DES_EDE_ECB, &des_ede_ecb_info },
{ POLARSSL_CIPHER_DES_EDE3_ECB, &des_ede3_ecb_info },
#if defined(POLARSSL_CIPHER_MODE_CBC)
{ POLARSSL_CIPHER_DES_CBC, &des_cbc_info },
{ POLARSSL_CIPHER_DES_EDE_CBC, &des_ede_cbc_info },
{ POLARSSL_CIPHER_DES_EDE3_CBC, &des_ede3_cbc_info },
#endif
#endif /* POLARSSL_DES_C */
#if defined(POLARSSL_CIPHER_NULL_CIPHER)
{ POLARSSL_CIPHER_NULL, &null_info },
#endif /* POLARSSL_CIPHER_NULL_CIPHER */
{ 0, NULL }
};
#define NUM_CIPHERS sizeof cipher_definitions / sizeof cipher_definitions[0]
int supported_ciphers[NUM_CIPHERS];
#endif
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