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      1 /*	$NetBSD: sha1.h,v 1.2 2024/08/18 20:47:14 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (C) 2004-2007, 2009  Internet Systems Consortium, Inc. ("ISC")
      5  * Copyright (C) 2000, 2001  Internet Software Consortium.
      6  *
      7  * Permission to use, copy, modify, and/or distribute this software for any
      8  * purpose with or without fee is hereby granted, provided that the above
      9  * copyright notice and this permission notice appear in all copies.
     10  *
     11  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
     12  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
     13  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
     14  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
     15  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
     16  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
     17  * PERFORMANCE OF THIS SOFTWARE.
     18  */
     19 
     20 #ifndef ISC_SHA1_H
     21 #define ISC_SHA1_H 1
     22 
     23 /* Id: sha1.h,v 1.19 2009/02/06 23:47:42 tbox Exp  */
     24 
     25 /*	NetBSD: sha1.h,v 1.2 1998/05/29 22:55:44 thorpej Exp 	*/
     26 
     27 /*! \file isc/sha1.h
     28  * \brief SHA-1 in C
     29  * \author By Steve Reid <steve (at) edmweb.com>
     30  * \note 100% Public Domain
     31  */
     32 
     33 #include <isc/lang.h>
     34 #include <isc/platform.h>
     35 #include <isc/types.h>
     36 
     37 #define ISC_SHA1_DIGESTLENGTH 20U
     38 #define ISC_SHA1_BLOCK_LENGTH 64U
     39 
     40 #ifdef ISC_PLATFORM_OPENSSLHASH
     41 #include <openssl/evp.h>
     42 
     43 typedef EVP_MD_CTX isc_sha1_t;
     44 
     45 #else
     46 
     47 typedef struct {
     48 	isc_uint32_t state[5];
     49 	isc_uint32_t count[2];
     50 	unsigned char buffer[ISC_SHA1_BLOCK_LENGTH];
     51 } isc_sha1_t;
     52 #endif
     53 
     54 ISC_LANG_BEGINDECLS
     55 
     56 void
     57 isc_sha1_init(isc_sha1_t *ctx);
     58 
     59 void
     60 isc_sha1_invalidate(isc_sha1_t *ctx);
     61 
     62 void
     63 isc_sha1_update(isc_sha1_t *ctx, const unsigned char *data, unsigned int len);
     64 
     65 void
     66 isc_sha1_final(isc_sha1_t *ctx, unsigned char *digest);
     67 
     68 ISC_LANG_ENDDECLS
     69 
     70 #endif /* ISC_SHA1_H */
     71