1/* $OpenBSD: sha1.h,v 1.6 2014/11/16 17:39:09 tedu Exp $ */ 2 3/* 4 * SHA-1 in C 5 * By Steve Reid <steve@edmweb.com> 6 * 100% Public Domain 7 */ 8 9#ifndef _SHA1_H_ 10#define _SHA1_H_ 11 12#define SHA1_BLOCK_LENGTH 64 13#define SHA1_DIGEST_LENGTH 20 14 15typedef struct { 16 u_int32_t state[5]; 17 u_int64_t count; 18 unsigned char buffer[SHA1_BLOCK_LENGTH]; 19} SHA1_CTX; 20 21void SHA1Init(SHA1_CTX * context); 22void SHA1Transform(u_int32_t state[5], const unsigned char buffer[SHA1_BLOCK_LENGTH]); 23void SHA1Update(SHA1_CTX *context, const void *data, unsigned int len); 24void SHA1Final(unsigned char digest[SHA1_DIGEST_LENGTH], SHA1_CTX *context); 25 26#endif /* _SHA1_H_ */ 27