void SHA1Transform(uint32_t[5], const u_char[64]);
void SHA1Init(SHA1_CTX *);
void SHA1Update(SHA1_CTX *, const u_char *, u_int);
void SHA1Final(u_char[SHA1_DIGEST_LENGTH], SHA1_CTX *);
void SHA1Transform(uint32_t[5], const u_char[64]);
void SHA1Init(SHA1_CTX *);
void SHA1Update(SHA1_CTX *, const u_char *, u_int);
void SHA1Final(u_char[SHA1_DIGEST_LENGTH], SHA1_CTX *);