Camellia block cipher. More...

#include "config.h"
#include <string.h>
#include <inttypes.h>

Include dependency graph for camellia.h:

Data Structures
struct	camellia_context
	CAMELLIA context structure. More...

Macros
#define	CAMELLIA_ENCRYPT 1

#define	CAMELLIA_DECRYPT 0

#define	POLARSSL_ERR_CAMELLIA_INVALID_KEY_LENGTH -0x0024
	Invalid key length. More...

#define	POLARSSL_ERR_CAMELLIA_INVALID_INPUT_LENGTH -0x0026
	Invalid data input length. More...

Functions
void	camellia_init (camellia_context *ctx)
	Initialize CAMELLIA context. More...

void	camellia_free (camellia_context *ctx)
	Clear CAMELLIA context. More...

int	camellia_setkey_enc (camellia_context ctx, const unsigned char key, unsigned int keysize)
	CAMELLIA key schedule (encryption) More...

int	camellia_setkey_dec (camellia_context ctx, const unsigned char key, unsigned int keysize)
	CAMELLIA key schedule (decryption) More...

int	camellia_crypt_ecb (camellia_context *ctx, int mode, const unsigned char input[16], unsigned char output[16])
	CAMELLIA-ECB block encryption/decryption. More...

int	camellia_crypt_cbc (camellia_context ctx, int mode, size_t length, unsigned char iv[16], const unsigned char input, unsigned char *output)
	CAMELLIA-CBC buffer encryption/decryption Length should be a multiple of the block size (16 bytes) More...

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)
	CAMELLIA-CFB128 buffer encryption/decryption. More...

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)
	CAMELLIA-CTR buffer encryption/decryption. More...

int	camellia_self_test (int verbose)
	Checkup routine. More...

Detailed Description

Camellia block cipher.

This file is part of PolarSSL (http://www.polarssl.org) Lead Maintainer: Paul Bakker <polarssl_maintainer at 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.

Definition in file camellia.h.

Macro Definition Documentation

#define CAMELLIA_DECRYPT 0

Definition at line 46 of file camellia.h.

#define CAMELLIA_ENCRYPT 1

Definition at line 45 of file camellia.h.

#define POLARSSL_ERR_CAMELLIA_INVALID_INPUT_LENGTH -0x0026

Invalid data input length.

Definition at line 49 of file camellia.h.

#define POLARSSL_ERR_CAMELLIA_INVALID_KEY_LENGTH -0x0024

Invalid key length.

Definition at line 48 of file camellia.h.

Function Documentation

int camellia_crypt_cbc	(	camellia_context *	ctx,
		int	mode,
		size_t	length,
		unsigned char	iv[16],
		const unsigned char *	input,
		unsigned char *	output
	)

CAMELLIA-CBC buffer encryption/decryption Length should be a multiple of the block size (16 bytes)

Parameters

ctx	CAMELLIA context
mode	CAMELLIA_ENCRYPT or CAMELLIA_DECRYPT
length	length of the input data
iv	initialization vector (updated after use)
input	buffer holding the input data
output	buffer holding the output data

Returns: 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
	)

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.

Parameters

ctx	CAMELLIA context
mode	CAMELLIA_ENCRYPT or CAMELLIA_DECRYPT
length	length of the input data
iv_off	offset in IV (updated after use)
iv	initialization vector (updated after use)
input	buffer holding the input data
output	buffer holding the output data

Returns: 0 if successful, or POLARSSL_ERR_CAMELLIA_INVALID_INPUT_LENGTH

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
	)

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.

Parameters

ctx	CAMELLIA context
length	The length of the data
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.
nonce_counter	The 128-bit nonce and counter.
stream_block	The saved stream-block for resuming. Is overwritten by the function.
input	The input data stream
output	The output data stream

Returns: 0 if successful

int camellia_crypt_ecb	(	camellia_context *	ctx,
		int	mode,
		const unsigned char	input[16],
		unsigned char	output[16]
	)

CAMELLIA-ECB block encryption/decryption.

Parameters

ctx	CAMELLIA context
mode	CAMELLIA_ENCRYPT or CAMELLIA_DECRYPT
input	16-byte input block
output	16-byte output block

Returns: 0 if successful

void camellia_free ( camellia_context * ctx )

Clear CAMELLIA context.

Parameters

ctx	CAMELLIA context to be cleared

void camellia_init ( camellia_context * ctx )

Initialize CAMELLIA context.

Parameters

ctx	CAMELLIA context to be initialized

int camellia_self_test ( int verbose )

Checkup routine.

Returns: 0 if successful, or 1 if the test failed

int camellia_setkey_dec	(	camellia_context *	ctx,
		const unsigned char *	key,
		unsigned int	keysize
	)

CAMELLIA key schedule (decryption)

Parameters

ctx	CAMELLIA context to be initialized
key	decryption key
keysize	must be 128, 192 or 256

Returns: 0 if successful, or POLARSSL_ERR_CAMELLIA_INVALID_KEY_LENGTH

int camellia_setkey_enc	(	camellia_context *	ctx,
		const unsigned char *	key,
		unsigned int	keysize
	)

CAMELLIA key schedule (encryption)

Parameters

ctx	CAMELLIA context to be initialized
key	encryption key
keysize	must be 128, 192 or 256

Returns: 0 if successful, or POLARSSL_ERR_CAMELLIA_INVALID_KEY_LENGTH

Data Structures

Macros

Functions

Detailed Description

Macro Definition Documentation

Function Documentation