blowfish.h

BLOWFISH加密算法

#include "types.h"

#define wipememory2(_ptr,_set,_len) do { volatile char *_vptr=(volatile char *)(_ptr); size_t _vlen=(_len); while(_vlen) { *_vptr=(_set); _vptr++; _vlen--; } } while(0)
#define wipememory(_ptr,_len) wipememory2(_ptr,0,_len)
#define CIPHER_ALGO_BLOWFISH	 4  /* blowfish 128 bit key */

#define BLOWFISH_BLOCKSIZE 8
#define BLOWFISH_ROUNDS 16

typedef struct {
    u32 s0[256];
    u32 s1[256];
    u32 s2[256];
    u32 s3[256];
    u32 p[BLOWFISH_ROUNDS+2];
} BLOWFISH_context;

int bf_setkey( void *c, const byte *key, unsigned keylen );
void encrypt_block( void *bc, byte *outbuf, const byte *inbuf );
void decrypt_block( void *bc, byte *outbuf, const byte *inbuf );