sha1.h

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/*  $OpenBSD: sha1.h,v 1.6 2014/11/16 17:39:09 tedu Exp $   */
/*
 * SHA-1 in C
 * By Steve Reid <steve@edmweb.com>
 * 100% Public Domain
 *
 * Ported to use standard C types for portability
 */
 
#ifndef _SHA1_H_
#define _SHA1_H_
 
#include <stdint.h>
#include <string.h>
 
#define SHA1_BLOCK_LENGTH 64
#define SHA1_DIGEST_LENGTH 20
 
typedef struct {
  uint32_t state[5];
  uint64_t count;
  unsigned char buffer[SHA1_BLOCK_LENGTH];
} SHA1_CTX;
 
void SHA1Init(SHA1_CTX *context);
void SHA1Transform(uint32_t state[5], const unsigned char buffer[SHA1_BLOCK_LENGTH]);
void SHA1Update(SHA1_CTX *context, const void *data, unsigned int len);
void SHA1Final(unsigned char digest[SHA1_DIGEST_LENGTH], SHA1_CTX *context);
 
#endif /* _SHA1_H_ */