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