des.h File Reference

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

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

Macros
#define	DES_ENCRYPT   0
#define	DES_DECRYPT   1

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

Macro Definition Documentation

DES_DECRYPT

#define DES_DECRYPT   1

Definition at line 8 of file des.h.

DES_ENCRYPT

#define DES_ENCRYPT   0

Definition at line 7 of file des.h.

Function Documentation

des3_crypt_cbc()

void des3_crypt_cbc	(	des3_context *	ctx,
		int	mode,
		int	length,
		unsigned char	iv[8],
		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

Definition at line 595 of file des.c.

des3_crypt_ecb()

void des3_crypt_ecb	(	des3_context *	ctx,
		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

Definition at line 554 of file des.c.

des3_set2key_dec()

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

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

Parameters

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

Definition at line 422 of file des.c.

des3_set2key_enc()

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

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

Parameters

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

Definition at line 411 of file des.c.

des3_set3key_dec()

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

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

Parameters

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

Definition at line 467 of file des.c.

des3_set3key_enc()

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

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

Parameters

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

Definition at line 456 of file des.c.

des_crypt_cbc()

void des_crypt_cbc	(	des_context *	ctx,
		int	mode,
		int	length,
		unsigned char	iv[8],
		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

Definition at line 507 of file des.c.

des_crypt_ecb()

void des_crypt_ecb	(	des_context *	ctx,
		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

Definition at line 478 of file des.c.

des_self_test()

int des_self_test

(

int

verbose

)

des_setkey_dec()

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

DES key schedule (56-bit, decryption)

Parameters

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

Definition at line 370 of file des.c.

des_setkey_enc()

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

DES key schedule (56-bit, encryption)

Parameters

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

Definition at line 362 of file des.c.