/*      $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
 */

#ifndef _SHA1_H_
#define _SHA1_H_

#define SHA1_BLOCK_LENGTH               64
#define SHA1_DIGEST_LENGTH              20

typedef struct {
        u_int32_t       state[5];
        u_int64_t       count;
        unsigned char   buffer[SHA1_BLOCK_LENGTH];
} SHA1_CTX;
  
void SHA1Init(SHA1_CTX * context);
void SHA1Transform(u_int32_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_ */