1 /*- 2 * Copyright (c) 2012 Alistair Crooks <agc@NetBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 #ifndef DIGEST_H_ 26 #define DIGEST_H_ 20100108 27 28 #include <sys/types.h> 29 30 #include <inttypes.h> 31 32 #include "md5.h" 33 #include "sha1.h" 34 #include "sha2.h" 35 #include "rmd160.h" 36 37 #ifndef __BEGIN_DECLS 38 # if defined(__cplusplus) 39 # define __BEGIN_DECLS extern "C" { 40 # define __END_DECLS } 41 # else 42 # define __BEGIN_DECLS 43 # define __END_DECLS 44 # endif 45 #endif 46 47 __BEGIN_DECLS 48 49 #define MD5_HASH_ALG 1 50 #define SHA1_HASH_ALG 2 51 #define RIPEMD_HASH_ALG 3 52 #define SHA256_HASH_ALG 8 53 #define SHA384_HASH_ALG 9 54 #define SHA512_HASH_ALG 10 55 #define SHA224_HASH_ALG 11 56 57 /* structure to describe digest methods */ 58 typedef struct digest_t { 59 uint32_t alg; /* algorithm */ 60 size_t size; /* size */ 61 union { 62 NETPGPV_MD5_CTX md5ctx; /* MD5 */ 63 NETPGPV_SHA1_CTX sha1ctx; /* SHA1 */ 64 NETPGPV_RMD160_CTX rmd160ctx; /* RIPEMD */ 65 NETPGPV_SHA256_CTX sha256ctx; /* SHA256 */ 66 NETPGPV_SHA512_CTX sha512ctx; /* SHA512 */ 67 } u; 68 void *prefix; /* points to specific prefix */ 69 uint32_t len; /* prefix length */ 70 void *ctx; /* pointer to context array */ 71 } digest_t; 72 73 unsigned digest_get_alg(const char */*hashalg*/); 74 75 int digest_init(digest_t */*digest*/, const uint32_t /*hashalg*/); 76 77 int digest_update(digest_t */*digest*/, const uint8_t */*data*/, size_t /*size*/); 78 unsigned digest_final(uint8_t */*out*/, digest_t */*digest*/); 79 int digest_alg_size(unsigned /*alg*/); 80 int digest_length(digest_t */*hash*/, unsigned /*hashedlen*/); 81 82 unsigned digest_get_prefix(unsigned /*hashalg*/, uint8_t */*prefix*/, size_t /*size*/); 83 84 __END_DECLS 85 86 #endif 87