lutil_sha1.h

/* $ReOpenLDAP$ */
/* Copyright 1992-2018 ReOpenLDAP AUTHORS: please see AUTHORS file.
 * All rights reserved.
 *
 * This file is part of ReOpenLDAP.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted only as authorized by the OpenLDAP
 * Public License.
 *
 * A copy of this license is available in the file LICENSE in the
 * top-level directory of the distribution or, alternatively, at
 * <http://www.OpenLDAP.org/license.html>.
 */

/* This version is based on:
 *	$OpenBSD: sha1.h,v 1.8 1997/07/15 01:54:23 millert Exp $	*/

#ifndef _LUTIL_SHA1_H_
#define _LUTIL_SHA1_H_

#include <ldap_cdefs.h>
#include <ac/bytes.h>

LDAP_BEGIN_DECL

/*
 * SHA-1 in C
 * By Steve Reid <steve@edmweb.com>
 */
#define LUTIL_SHA1_BYTES 20

/* This code assumes char are 8-bits and uint32 are 32-bits */

typedef struct {
  uint32_t state[5];
  uint32_t count[2];
  unsigned char buffer[64];
} lutil_SHA1_CTX;

LDAP_LUTIL_F(void)
lutil_SHA1Transform(uint32_t state[5], const unsigned char buffer[64]);

LDAP_LUTIL_F(void)
lutil_SHA1Init(lutil_SHA1_CTX *context);

LDAP_LUTIL_F(void)
lutil_SHA1Update(lutil_SHA1_CTX *context, const unsigned char *data, uint32_t len);

LDAP_LUTIL_F(void)
lutil_SHA1Final(unsigned char digest[20], lutil_SHA1_CTX *context);

LDAP_LUTIL_F(char *)
lutil_SHA1End(lutil_SHA1_CTX *, char *);

LDAP_LUTIL_F(char *)
lutil_SHA1File(char *, char *);

LDAP_LUTIL_F(char *)
lutil_SHA1Data(const unsigned char *, size_t, char *);

LDAP_END_DECL

#endif /* _LUTIL_SHA1_H_ */