#ifndef SHA1_H
#define SHA1_H

/*
   SHA-1 in C
   By Steve Reid <steve@edmweb.com>
   100% Public Domain

   adopted for s/qmail (feh)
 */

#include <stdint.h>
/* SHA1 implementation */

#define SHA1_BLOCKSIZE  64
#define SHA1_DIGESTSIZE 20

typedef struct {
  uint32_t state[5];
  uint32_t count[2];
  uint8_t buffer[SHA1_BLOCKSIZE];
} sha1_ctx;

void sha1_init(sha1_ctx *context);
void sha1_update(sha1_ctx *context, const uint8_t *data, uint32_t len);
void sha1_final(uint8_t hash[SHA1_DIGESTSIZE], sha1_ctx *context);
void sha1_transform(uint32_t state[5], const uint8_t buffer[SHA1_BLOCKSIZE]);
void sha1_hash(char *hash, const char *data, uint32_t len);

#endif /* SHA1_H */