blowfish.h File Reference

Blowfish block cipher. More...

#include "config.h"
#include <stddef.h>
#include <stdint.h>

Include dependency graph for blowfish.h:

Go to the source code of this file.

Data Structures
struct	mbedtls_blowfish_context
	Blowfish context structure. More...
Defines
#define	MBEDTLS_BLOWFISH_ENCRYPT   1
#define	MBEDTLS_BLOWFISH_DECRYPT   0
#define	MBEDTLS_BLOWFISH_MAX_KEY_BITS   448
#define	MBEDTLS_BLOWFISH_MIN_KEY_BITS   32
#define	MBEDTLS_BLOWFISH_ROUNDS   16
#define	MBEDTLS_BLOWFISH_BLOCKSIZE   8
#define	MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH   -0x0016
#define	MBEDTLS_ERR_BLOWFISH_HW_ACCEL_FAILED   -0x0017
#define	MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH   -0x0018
Functions
void	mbedtls_blowfish_init (mbedtls_blowfish_context *ctx)
	Initialize Blowfish context.
void	mbedtls_blowfish_free (mbedtls_blowfish_context *ctx)
	Clear Blowfish context.
int	mbedtls_blowfish_setkey (mbedtls_blowfish_context *ctx, const unsigned char *key, unsigned int keybits)
	Blowfish key schedule.
int	mbedtls_blowfish_crypt_ecb (mbedtls_blowfish_context *ctx, int mode, const unsigned char input[MBEDTLS_BLOWFISH_BLOCKSIZE], unsigned char output[MBEDTLS_BLOWFISH_BLOCKSIZE])
	Blowfish-ECB block encryption/decryption.

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Detailed Description

Blowfish block cipher.

Definition in file blowfish.h.

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Define Documentation

#define MBEDTLS_BLOWFISH_BLOCKSIZE   8

Definition at line 41 of file blowfish.h.

#define MBEDTLS_BLOWFISH_DECRYPT   0

Definition at line 37 of file blowfish.h.

#define MBEDTLS_BLOWFISH_ENCRYPT   1

Definition at line 36 of file blowfish.h.

#define MBEDTLS_BLOWFISH_MAX_KEY_BITS   448

Definition at line 38 of file blowfish.h.

#define MBEDTLS_BLOWFISH_MIN_KEY_BITS   32

Definition at line 39 of file blowfish.h.

#define MBEDTLS_BLOWFISH_ROUNDS   16

Rounds to use. When increasing this value, make sure to extend the initialisation vectors

Definition at line 40 of file blowfish.h.

#define MBEDTLS_ERR_BLOWFISH_HW_ACCEL_FAILED   -0x0017

Blowfish hardware accelerator failed.

Definition at line 44 of file blowfish.h.

#define MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH   -0x0018

Invalid data input length.

Definition at line 45 of file blowfish.h.

#define MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH   -0x0016

Invalid key length.

Definition at line 43 of file blowfish.h.

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Function Documentation

int mbedtls_blowfish_crypt_ecb	(	mbedtls_blowfish_context *	ctx,
		int	mode,
		const unsigned char	input[MBEDTLS_BLOWFISH_BLOCKSIZE],
		unsigned char	output[MBEDTLS_BLOWFISH_BLOCKSIZE]
	)

Blowfish-ECB block encryption/decryption.

Parameters:

	ctx	Blowfish context
	mode	MBEDTLS_BLOWFISH_ENCRYPT or MBEDTLS_BLOWFISH_DECRYPT
	input	8-byte input block
	output	8-byte output block

Returns:

0 if successful

void mbedtls_blowfish_free

(

mbedtls_blowfish_context *

ctx

)

Clear Blowfish context.

Parameters:

ctx

Blowfish context to be cleared

void mbedtls_blowfish_init

(

mbedtls_blowfish_context *

ctx

)

Initialize Blowfish context.

Parameters:

ctx

Blowfish context to be initialized

int mbedtls_blowfish_setkey	(	mbedtls_blowfish_context *	ctx,
		const unsigned char *	key,
		unsigned int	keybits
	)

Blowfish key schedule.

Parameters:

	ctx	Blowfish context to be initialized
	key	encryption key
	keybits	must be between 32 and 448 bits

Returns:

0 if successful, or MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH