//sha1.h：对字符串进行sha1加密
#ifndef _SHA1_H_
#define _SHA1_H_

#include "generic/typedef.h"

typedef struct SHA1Context {
    unsigned Message_Digest[5];
    unsigned Length_Low;
    unsigned Length_High;
    unsigned char Message_Block[64];
    int Message_Block_Index;
    int Computed;
    int Corrupted;
} SHA1Context;

void SHA1Reset(SHA1Context *);
int SHA1Result(SHA1Context *);
void SHA1Input(SHA1Context *, const char *, unsigned);

char *sha1_hash(const char *source);

#define SHA1CircularShift(bits,word) ((((word) << (bits)) & 0xFFFFFFFF) | ((word) >> (32-(bits))))

void SHA1ProcessMessageBlock(SHA1Context *);
void SHA1PadMessage(SHA1Context *);

#endif