des.h File Reference

Copyright (C) 2006-2010, 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.

Data Structures
struct	des3_context
	Triple-DES context structure. More...
struct	des_context
	DES context structure. More...

Macros
#define	DES_DECRYPT   0
#define	DES_ENCRYPT   1
#define	POLARSSL_ERR_DES_INVALID_INPUT_LENGTH   -0x0C00

Functions
int	des3_crypt_cbc (des3_context *ctx, int mode, int length, unsigned char iv[8], const unsigned char *input, unsigned char *output)
	3DES-CBC buffer encryption/decryption More...
int	des3_crypt_ecb (des3_context *ctx, const unsigned char input[8], unsigned char output[8])
	3DES-ECB block encryption/decryption More...
void	des3_set2key_dec (des3_context *ctx, const unsigned char key[16])
	Triple-DES key schedule (112-bit, decryption) More...
void	des3_set2key_enc (des3_context *ctx, const unsigned char key[16])
	Triple-DES key schedule (112-bit, encryption) More...
void	des3_set3key_dec (des3_context *ctx, const unsigned char key[24])
	Triple-DES key schedule (168-bit, decryption) More...
void	des3_set3key_enc (des3_context *ctx, const unsigned char key[24])
	Triple-DES key schedule (168-bit, encryption) More...
int	des_crypt_cbc (des_context *ctx, int mode, int length, unsigned char iv[8], const unsigned char *input, unsigned char *output)
	DES-CBC buffer encryption/decryption. More...
int	des_crypt_ecb (des_context *ctx, const unsigned char input[8], unsigned char output[8])
	DES-ECB block encryption/decryption. More...
int	des_self_test (int verbose)
void	des_setkey_dec (des_context *ctx, const unsigned char key[8])
	DES key schedule (56-bit, decryption) More...
void	des_setkey_enc (des_context *ctx, const unsigned char key[8])
	DES key schedule (56-bit, encryption) More...

#define DES_DECRYPT   0

#define DES_ENCRYPT   1

Referenced by main().

#define POLARSSL_ERR_DES_INVALID_INPUT_LENGTH   -0x0C00

int des3_crypt_cbc	(	des3_context *	ctx,
		int	mode,
		int	length,
		unsigned char	iv[8],
		const unsigned char *	input,
		unsigned char *	output
	)

3DES-CBC buffer encryption/decryption

Parameters

ctx	3DES context
mode	DES_ENCRYPT or DES_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_DES_INVALID_INPUT_LENGTH

Referenced by main().

int des3_crypt_ecb	(	des3_context *	ctx,
		const unsigned char	input[8],
		unsigned char	output[8]
	)

3DES-ECB block encryption/decryption

Parameters

ctx	3DES context
input	64-bit input block
output	64-bit output block

Returns

0 if successful

void des3_set2key_dec	(	des3_context *	ctx,
		const unsigned char	key[16]
	)

Triple-DES key schedule (112-bit, decryption)

Parameters

ctx	3DES context to be initialized
key	16-byte secret key

void des3_set2key_enc	(	des3_context *	ctx,
		const unsigned char	key[16]
	)

Triple-DES key schedule (112-bit, encryption)

Parameters

ctx	3DES context to be initialized
key	16-byte secret key

void des3_set3key_dec	(	des3_context *	ctx,
		const unsigned char	key[24]
	)

Triple-DES key schedule (168-bit, decryption)

Parameters

ctx	3DES context to be initialized
key	24-byte secret key

void des3_set3key_enc	(	des3_context *	ctx,
		const unsigned char	key[24]
	)

Triple-DES key schedule (168-bit, encryption)

Parameters

ctx	3DES context to be initialized
key	24-byte secret key

Referenced by main().

int des_crypt_cbc	(	des_context *	ctx,
		int	mode,
		int	length,
		unsigned char	iv[8],
		const unsigned char *	input,
		unsigned char *	output
	)

DES-CBC buffer encryption/decryption.

Parameters

ctx	DES context
mode	DES_ENCRYPT or DES_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

Referenced by main().

int des_crypt_ecb	(	des_context *	ctx,
		const unsigned char	input[8],
		unsigned char	output[8]
	)

DES-ECB block encryption/decryption.

Parameters

ctx	DES context
input	64-bit input block
output	64-bit output block

Returns

0 if successful

int des_self_test

(

int

verbose

)

Referenced by main().

void des_setkey_dec	(	des_context *	ctx,
		const unsigned char	key[8]
	)

DES key schedule (56-bit, decryption)

Parameters

ctx	DES context to be initialized
key	8-byte secret key

void des_setkey_enc	(	des_context *	ctx,
		const unsigned char	key[8]
	)

DES key schedule (56-bit, encryption)

Parameters

ctx	DES context to be initialized
key	8-byte secret key

Referenced by main().