#ifndef _SHA256_H #define _SHA256_H 1 #include <stdint.h> #define SHA_LBLOCK 16 #define SHA_CBLOCK (SHA_LBLOCK*4) /* SHA treats input data as a * contiguous array of 32 bit * wide big-endian values. */ #define SHA256_CBLOCK (SHA_LBLOCK*4) /* SHA-256 treats input data as a * contiguous array of 32 bit * wide big-endian values. */ #define SHA224_DIGEST_LENGTH 28 #define SHA256_DIGEST_LENGTH 32 typedef struct SHA256state_st { uint32_t h[8]; uint32_t Nl,Nh; uint32_t data[SHA_LBLOCK]; unsigned int num,md_len; } SHA256_CTX; int SHA224_Init(SHA256_CTX *c); int SHA224_Update(SHA256_CTX *c, const void *data, size_t len); int SHA224_Final(unsigned char *md, SHA256_CTX *c); unsigned char *SHA224(const unsigned char *d, size_t n,unsigned char *md); int SHA256_Init(SHA256_CTX *c); int SHA256_Update(SHA256_CTX *c, const void *data, size_t len); int SHA256_Final(unsigned char *md, SHA256_CTX *c); unsigned char *SHA256(const unsigned char *d, size_t n,unsigned char *md); void SHA256_Transform(SHA256_CTX *c, const unsigned char *data); #endif