cipher_wrap.c

/**
 * \file cipher_wrap.c
 *
 * \brief Generic cipher wrapper for mbed TLS
 *
 * \author Adriaan de Jong <dejong@fox-it.com>
 *
 *  Copyright (C) 2006-2014, ARM Limited, All Rights Reserved
 *
 *  This file is part of mbed TLS (https://tls.mbed.org)
 *
 *  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.
 */

#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif

#if defined(MBEDTLS_CIPHER_C)

#include "mbedtls/cipher_internal.h"

#if defined(MBEDTLS_AES_C)
#include "mbedtls/aes.h"
#endif

#if defined(MBEDTLS_ARC4_C)
#include "mbedtls/arc4.h"
#endif

#if defined(MBEDTLS_CAMELLIA_C)
#include "mbedtls/camellia.h"
#endif

#if defined(MBEDTLS_DES_C)
#include "mbedtls/des.h"
#endif

#if defined(MBEDTLS_BLOWFISH_C)
#include "mbedtls/blowfish.h"
#endif

#if defined(MBEDTLS_GCM_C)
#include "mbedtls/gcm.h"
#endif

#if defined(MBEDTLS_CCM_C)
#include "mbedtls/ccm.h"
#endif

#if defined(MBEDTLS_CIPHER_NULL_CIPHER)
#include <string.h>
#endif

#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc    calloc
#define mbedtls_free       free
#endif

#if defined(MBEDTLS_GCM_C)
/* shared by all GCM ciphers */
static void *gcm_ctx_alloc( void )
{
    void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_gcm_context ) );

    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 = mbedtls_calloc( 1, sizeof( mbedtls_ccm_context ) );

    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 = mbedtls_calloc( 1, sizeof( mbedtls_aes_context ) );

    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