blowfish.h File Reference

Blowfish block cipher. More...

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

Include dependency graph for blowfish.h:

Go to the source code of this file.

Classes
struct	mbedtls_blowfish_context
	Blowfish context structure. More...

Macros
#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 /* Blowfish uses 64 bit blocks */
#define	MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH   MBEDTLS_DEPRECATED_NUMERIC_CONSTANT( -0x0016 )
#define	MBEDTLS_ERR_BLOWFISH_BAD_INPUT_DATA   -0x0016
#define	MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH   -0x0018
#define	MBEDTLS_ERR_BLOWFISH_HW_ACCEL_FAILED   -0x0017

Typedefs
typedef struct mbedtls_blowfish_context	mbedtls_blowfish_context
	Blowfish context structure. More...

Functions
void	mbedtls_blowfish_init (mbedtls_blowfish_context *ctx)
	Initialize a Blowfish context. More...
void	mbedtls_blowfish_free (mbedtls_blowfish_context *ctx)
	Clear a Blowfish context. More...
int	mbedtls_blowfish_setkey (mbedtls_blowfish_context *ctx, const unsigned char *key, unsigned int keybits)
	Perform a Blowfish key schedule operation. More...
int	mbedtls_blowfish_crypt_ecb (mbedtls_blowfish_context *ctx, int mode, const unsigned char input[MBEDTLS_BLOWFISH_BLOCKSIZE], unsigned char output[MBEDTLS_BLOWFISH_BLOCKSIZE])
	Perform a Blowfish-ECB block encryption/decryption operation. More...

Detailed Description

Blowfish block cipher.

Macro Definition Documentation

MBEDTLS_BLOWFISH_BLOCKSIZE

#define MBEDTLS_BLOWFISH_BLOCKSIZE   8 /* Blowfish uses 64 bit blocks */

MBEDTLS_BLOWFISH_DECRYPT

#define MBEDTLS_BLOWFISH_DECRYPT   0

MBEDTLS_BLOWFISH_ENCRYPT

#define MBEDTLS_BLOWFISH_ENCRYPT   1

MBEDTLS_BLOWFISH_MAX_KEY_BITS

#define MBEDTLS_BLOWFISH_MAX_KEY_BITS   448

MBEDTLS_BLOWFISH_MIN_KEY_BITS

#define MBEDTLS_BLOWFISH_MIN_KEY_BITS   32

MBEDTLS_BLOWFISH_ROUNDS

#define MBEDTLS_BLOWFISH_ROUNDS   16

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

MBEDTLS_ERR_BLOWFISH_BAD_INPUT_DATA

#define MBEDTLS_ERR_BLOWFISH_BAD_INPUT_DATA   -0x0016

Bad input data.

MBEDTLS_ERR_BLOWFISH_HW_ACCEL_FAILED

#define MBEDTLS_ERR_BLOWFISH_HW_ACCEL_FAILED   -0x0017

Blowfish hardware accelerator failed.

MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH

#define MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH   -0x0018

Invalid data input length.

MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH

#define MBEDTLS_ERR_BLOWFISH_INVALID_KEY_LENGTH   MBEDTLS_DEPRECATED_NUMERIC_CONSTANT( -0x0016 )

Typedef Documentation

mbedtls_blowfish_context

typedef struct mbedtls_blowfish_context mbedtls_blowfish_context

Blowfish context structure.

Function Documentation

mbedtls_blowfish_crypt_ecb()

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

Perform a Blowfish-ECB block encryption/decryption operation.

Parameters

ctx	The Blowfish context to use. This must be initialized and bound to a key.
mode	The mode of operation. Possible values are MBEDTLS_BLOWFISH_ENCRYPT for encryption, or MBEDTLS_BLOWFISH_DECRYPT for decryption.
input	The input block. This must be a readable buffer of size 8 Bytes.
output	The output block. This must be a writable buffer of size 8 Bytes.

Returns

0 if successful.

A negative error code on failure.

mbedtls_blowfish_free()

void mbedtls_blowfish_free

(

mbedtls_blowfish_context *

ctx

)

Clear a Blowfish context.

Parameters

ctx	The Blowfish context to be cleared. This may be NULL, in which case this function returns immediately. If it is not NULL, it must point to an initialized Blowfish context.

mbedtls_blowfish_init()

void mbedtls_blowfish_init

(

mbedtls_blowfish_context *

ctx

)

Initialize a Blowfish context.

Parameters

ctx	The Blowfish context to be initialized. This must not be NULL.

mbedtls_blowfish_setkey()

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

Perform a Blowfish key schedule operation.

Parameters

ctx	The Blowfish context to perform the key schedule on.
key	The encryption key. This must be a readable buffer of length keybits Bits.
keybits	The length of key in Bits. This must be between 32 and 448 and a multiple of 8.

Returns

0 if successful.

A negative error code on failure.