blowfish.h

Go to the documentation of this file.

 
#ifndef POLARSSL_BLOWFISH_H
#define POLARSSL_BLOWFISH_H
 
#if !defined(POLARSSL_CONFIG_FILE)
#include "config.h"
#else
#include POLARSSL_CONFIG_FILE
#endif
 
#include <string.h>
 
#if defined(_MSC_VER) && !defined(EFIX64) && !defined(EFI32)
#include <basetsd.h>
typedef UINT32 uint32_t;
#else
#include <inttypes.h>
#endif
 
#define BLOWFISH_ENCRYPT     1
#define BLOWFISH_DECRYPT     0
#define BLOWFISH_MAX_KEY     448
#define BLOWFISH_MIN_KEY     32
#define BLOWFISH_ROUNDS      16         
#define BLOWFISH_BLOCKSIZE   8          /* Blowfish uses 64 bit blocks */
 
#define POLARSSL_ERR_BLOWFISH_INVALID_KEY_LENGTH                -0x0016  
#define POLARSSL_ERR_BLOWFISH_INVALID_INPUT_LENGTH              -0x0018  
#if !defined(POLARSSL_BLOWFISH_ALT)
// Regular implementation
//
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef struct
{
    uint32_t P[BLOWFISH_ROUNDS + 2];    
    uint32_t S[4][256];                 
}
blowfish_context;
 
void blowfish_init( blowfish_context *ctx );
 
void blowfish_free( blowfish_context *ctx );
 
int blowfish_setkey( blowfish_context *ctx, const unsigned char *key,
                     unsigned int keysize );
 
int blowfish_crypt_ecb( blowfish_context *ctx,
                        int mode,
                        const unsigned char input[BLOWFISH_BLOCKSIZE],
                        unsigned char output[BLOWFISH_BLOCKSIZE] );
 
#if defined(POLARSSL_CIPHER_MODE_CBC)
int blowfish_crypt_cbc( blowfish_context *ctx,
                        int mode,
                        size_t length,
                        unsigned char iv[BLOWFISH_BLOCKSIZE],
                        const unsigned char *input,
                        unsigned char *output );
#endif /* POLARSSL_CIPHER_MODE_CBC */
 
#if defined(POLARSSL_CIPHER_MODE_CFB)
int blowfish_crypt_cfb64( blowfish_context *ctx,
                          int mode,
                          size_t length,
                          size_t *iv_off,
                          unsigned char iv[BLOWFISH_BLOCKSIZE],
                          const unsigned char *input,
                          unsigned char *output );
#endif /*POLARSSL_CIPHER_MODE_CFB */
 
#if defined(POLARSSL_CIPHER_MODE_CTR)
int blowfish_crypt_ctr( blowfish_context *ctx,
                        size_t length,
                        size_t *nc_off,
                        unsigned char nonce_counter[BLOWFISH_BLOCKSIZE],
                        unsigned char stream_block[BLOWFISH_BLOCKSIZE],
                        const unsigned char *input,
                        unsigned char *output );
#endif /* POLARSSL_CIPHER_MODE_CTR */
 
#ifdef __cplusplus
}
#endif
 
#else  /* POLARSSL_BLOWFISH_ALT */
#include "blowfish_alt.h"
#endif /* POLARSSL_BLOWFISH_ALT */
 
#endif /* blowfish.h */