mirror of
https://github.com/yuzu-emu/mbedtls.git
synced 2024-11-23 21:15:40 +01:00
243 lines
8.0 KiB
C
243 lines
8.0 KiB
C
/**
|
|
* \file camellia.h
|
|
*
|
|
* \brief Camellia block cipher
|
|
*
|
|
* Copyright (C) 2006-2014, ARM Limited, All Rights Reserved
|
|
*
|
|
* This file is part of mbed TLS (https://polarssl.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.
|
|
*/
|
|
#ifndef POLARSSL_CAMELLIA_H
|
|
#define POLARSSL_CAMELLIA_H
|
|
|
|
#if !defined(POLARSSL_CONFIG_FILE)
|
|
#include "config.h"
|
|
#else
|
|
#include POLARSSL_CONFIG_FILE
|
|
#endif
|
|
|
|
#include <stddef.h>
|
|
|
|
#if defined(_MSC_VER) && !defined(EFIX64) && !defined(EFI32)
|
|
#include <basetsd.h>
|
|
typedef UINT32 uint32_t;
|
|
#else
|
|
#include <inttypes.h>
|
|
#endif
|
|
|
|
#define CAMELLIA_ENCRYPT 1
|
|
#define CAMELLIA_DECRYPT 0
|
|
|
|
#define POLARSSL_ERR_CAMELLIA_INVALID_KEY_LENGTH -0x0024 /**< Invalid key length. */
|
|
#define POLARSSL_ERR_CAMELLIA_INVALID_INPUT_LENGTH -0x0026 /**< Invalid data input length. */
|
|
|
|
#if !defined(POLARSSL_CAMELLIA_ALT)
|
|
// Regular implementation
|
|
//
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* \brief CAMELLIA context structure
|
|
*/
|
|
typedef struct
|
|
{
|
|
int nr; /*!< number of rounds */
|
|
uint32_t rk[68]; /*!< CAMELLIA round keys */
|
|
}
|
|
camellia_context;
|
|
|
|
/**
|
|
* \brief Initialize CAMELLIA context
|
|
*
|
|
* \param ctx CAMELLIA context to be initialized
|
|
*/
|
|
void camellia_init( camellia_context *ctx );
|
|
|
|
/**
|
|
* \brief Clear CAMELLIA context
|
|
*
|
|
* \param ctx CAMELLIA context to be cleared
|
|
*/
|
|
void camellia_free( camellia_context *ctx );
|
|
|
|
/**
|
|
* \brief CAMELLIA key schedule (encryption)
|
|
*
|
|
* \param ctx CAMELLIA context to be initialized
|
|
* \param key encryption key
|
|
* \param keysize must be 128, 192 or 256
|
|
*
|
|
* \return 0 if successful, or POLARSSL_ERR_CAMELLIA_INVALID_KEY_LENGTH
|
|
*/
|
|
int camellia_setkey_enc( camellia_context *ctx, const unsigned char *key,
|
|
unsigned int keysize );
|
|
|
|
/**
|
|
* \brief CAMELLIA key schedule (decryption)
|
|
*
|
|
* \param ctx CAMELLIA context to be initialized
|
|
* \param key decryption key
|
|
* \param keysize must be 128, 192 or 256
|
|
*
|
|
* \return 0 if successful, or POLARSSL_ERR_CAMELLIA_INVALID_KEY_LENGTH
|
|
*/
|
|
int camellia_setkey_dec( camellia_context *ctx, const unsigned char *key,
|
|
unsigned int keysize );
|
|
|
|
/**
|
|
* \brief CAMELLIA-ECB block encryption/decryption
|
|
*
|
|
* \param ctx CAMELLIA context
|
|
* \param mode CAMELLIA_ENCRYPT or CAMELLIA_DECRYPT
|
|
* \param input 16-byte input block
|
|
* \param output 16-byte output block
|
|
*
|
|
* \return 0 if successful
|
|
*/
|
|
int camellia_crypt_ecb( camellia_context *ctx,
|
|
int mode,
|
|
const unsigned char input[16],
|
|
unsigned char output[16] );
|
|
|
|
#if defined(POLARSSL_CIPHER_MODE_CBC)
|
|
/**
|
|
* \brief CAMELLIA-CBC buffer encryption/decryption
|
|
* Length should be a multiple of the block
|
|
* size (16 bytes)
|
|
*
|
|
* \note Upon exit, the content of the IV is updated so that you can
|
|
* call the function same function again on the following
|
|
* block(s) of data and get the same result as if it was
|
|
* encrypted in one call. This allows a "streaming" usage.
|
|
* If on the other hand you need to retain the contents of the
|
|
* IV, you should either save it manually or use the cipher
|
|
* module instead.
|
|
*
|
|
* \param ctx CAMELLIA context
|
|
* \param mode CAMELLIA_ENCRYPT or CAMELLIA_DECRYPT
|
|
* \param length length of the input data
|
|
* \param iv initialization vector (updated after use)
|
|
* \param input buffer holding the input data
|
|
* \param output buffer holding the output data
|
|
*
|
|
* \return 0 if successful, or
|
|
* POLARSSL_ERR_CAMELLIA_INVALID_INPUT_LENGTH
|
|
*/
|
|
int camellia_crypt_cbc( camellia_context *ctx,
|
|
int mode,
|
|
size_t length,
|
|
unsigned char iv[16],
|
|
const unsigned char *input,
|
|
unsigned char *output );
|
|
#endif /* POLARSSL_CIPHER_MODE_CBC */
|
|
|
|
#if defined(POLARSSL_CIPHER_MODE_CFB)
|
|
/**
|
|
* \brief CAMELLIA-CFB128 buffer encryption/decryption
|
|
*
|
|
* Note: Due to the nature of CFB you should use the same key schedule for
|
|
* both encryption and decryption. So a context initialized with
|
|
* camellia_setkey_enc() for both CAMELLIA_ENCRYPT and CAMELLIE_DECRYPT.
|
|
*
|
|
* \note Upon exit, the content of the IV is updated so that you can
|
|
* call the function same function again on the following
|
|
* block(s) of data and get the same result as if it was
|
|
* encrypted in one call. This allows a "streaming" usage.
|
|
* If on the other hand you need to retain the contents of the
|
|
* IV, you should either save it manually or use the cipher
|
|
* module instead.
|
|
*
|
|
* \param ctx CAMELLIA context
|
|
* \param mode CAMELLIA_ENCRYPT or CAMELLIA_DECRYPT
|
|
* \param length length of the input data
|
|
* \param iv_off offset in IV (updated after use)
|
|
* \param iv initialization vector (updated after use)
|
|
* \param input buffer holding the input data
|
|
* \param output buffer holding the output data
|
|
*
|
|
* \return 0 if successful, or
|
|
* POLARSSL_ERR_CAMELLIA_INVALID_INPUT_LENGTH
|
|
*/
|
|
int camellia_crypt_cfb128( camellia_context *ctx,
|
|
int mode,
|
|
size_t length,
|
|
size_t *iv_off,
|
|
unsigned char iv[16],
|
|
const unsigned char *input,
|
|
unsigned char *output );
|
|
#endif /* POLARSSL_CIPHER_MODE_CFB */
|
|
|
|
#if defined(POLARSSL_CIPHER_MODE_CTR)
|
|
/**
|
|
* \brief CAMELLIA-CTR buffer encryption/decryption
|
|
*
|
|
* Warning: You have to keep the maximum use of your counter in mind!
|
|
*
|
|
* Note: Due to the nature of CTR you should use the same key schedule for
|
|
* both encryption and decryption. So a context initialized with
|
|
* camellia_setkey_enc() for both CAMELLIA_ENCRYPT and CAMELLIA_DECRYPT.
|
|
*
|
|
* \param ctx CAMELLIA context
|
|
* \param length The length of the data
|
|
* \param nc_off The offset in the current stream_block (for resuming
|
|
* within current cipher stream). The offset pointer to
|
|
* should be 0 at the start of a stream.
|
|
* \param nonce_counter The 128-bit nonce and counter.
|
|
* \param stream_block The saved stream-block for resuming. Is overwritten
|
|
* by the function.
|
|
* \param input The input data stream
|
|
* \param output The output data stream
|
|
*
|
|
* \return 0 if successful
|
|
*/
|
|
int camellia_crypt_ctr( camellia_context *ctx,
|
|
size_t length,
|
|
size_t *nc_off,
|
|
unsigned char nonce_counter[16],
|
|
unsigned char stream_block[16],
|
|
const unsigned char *input,
|
|
unsigned char *output );
|
|
#endif /* POLARSSL_CIPHER_MODE_CTR */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#else /* POLARSSL_CAMELLIA_ALT */
|
|
#include "camellia_alt.h"
|
|
#endif /* POLARSSL_CAMELLIA_ALT */
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* \brief Checkup routine
|
|
*
|
|
* \return 0 if successful, or 1 if the test failed
|
|
*/
|
|
int camellia_self_test( int verbose );
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* camellia.h */
|