/* $OpenBSD: sha1.h,v 1.5 2007/09/10 22:19:42 henric Exp $ */

/*

* SHA-1 in C

* By Steve Reid <steve@edmweb.com>

* 100% Public Domain

*/

#ifndef _SHA1_H_

#define _SHA1_H_

#define SHA1_BLOCK_LENGTH 64

#define SHA1_DIGEST_LENGTH 20

#include <stdint.h>

typedef struct {

uint32_t state[5];

uint64_t count;

uint8_t buffer[SHA1_BLOCK_LENGTH];

} SHA1_CTX;

void SHA1Init(SHA1_CTX * context);

void SHA1Transform(uint32_t state[5], const uint8_t buffer[SHA1_BLOCK_LENGTH]);

void SHA1Update(SHA1_CTX *context, const uint8_t *data, const uint32_t len);

void SHA1Final(uint8_t digest[SHA1_DIGEST_LENGTH], SHA1_CTX *context);

void SHA1Hmac(const uint8_t *key, const uint32_t keylen, const uint8_t *msg, const uint32_t msglen, uint8_t digest[SHA1_DIGEST_LENGTH]);