[4446] | 1 | //hash.c: |
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| 2 | |
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| 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010 |
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| 5 | * |
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| 6 | * This file is part of libroar a part of RoarAudio, |
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| 7 | * a cross-platform sound system for both, home and professional use. |
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| 8 | * See README for details. |
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| 9 | * |
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| 10 | * This file is free software; you can redistribute it and/or modify |
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| 11 | * it under the terms of the GNU General Public License version 3 |
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| 12 | * as published by the Free Software Foundation. |
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| 13 | * |
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| 14 | * libroar is distributed in the hope that it will be useful, |
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | * GNU General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with this software; see the file COPYING. If not, write to |
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| 21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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| 22 | * Boston, MA 02110-1301, USA. |
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| 23 | * |
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| 24 | * NOTE for everyone want's to change something and send patches: |
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| 25 | * read README and HACKING! There a addition information on |
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| 26 | * the license of this document you need to read before you send |
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| 27 | * any patches. |
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| 28 | * |
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| 29 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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| 30 | * or libpulse*: |
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| 31 | * The libs libroaresd, libroararts and libroarpulse link this lib |
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| 32 | * and are therefore GPL. Because of this it may be illigal to use |
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| 33 | * them with any software that uses libesd, libartsc or libpulse*. |
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| 34 | */ |
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| 35 | |
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| 36 | #include "libroar.h" |
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| 37 | |
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[4451] | 38 | #ifdef ROAR_HAVE_LIBGCRYPT |
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| 39 | #include <gcrypt.h> |
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| 40 | #endif |
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| 41 | |
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[4450] | 42 | static const struct hashes { |
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[4453] | 43 | const int id; |
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| 44 | const char * name; |
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| 45 | const ssize_t dlen; |
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[4450] | 46 | } _libroar_hashes[] = { |
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| 47 | /* |
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[4453] | 48 | grep '^ +HT_' doc/new-cmds | sed 's/ *#(.*)$//; s/^ +HT_//; s/ *=.*$//' | while read n; do printf " {ROAR_HT_%-12s \"%-12s -1 },\n" $n, $n\",; done |
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[4450] | 49 | */ |
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[4453] | 50 | {ROAR_HT_NONE, "NONE", -1 }, |
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| 51 | {ROAR_HT_MD5, "MD5", 16 }, |
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| 52 | {ROAR_HT_SHA1, "SHA1", 20 }, |
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| 53 | {ROAR_HT_RIPEMD160, "RIPEMD160", 20 }, |
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| 54 | {ROAR_HT_MD2, "MD2", -1 }, |
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| 55 | {ROAR_HT_TIGER, "TIGER", 24 }, |
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| 56 | {ROAR_HT_HAVAL, "HAVAL", -1 }, |
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| 57 | {ROAR_HT_SHA256, "SHA256", 32 }, |
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| 58 | {ROAR_HT_SHA384, "SHA384", 48 }, |
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| 59 | {ROAR_HT_SHA512, "SHA512", 64 }, |
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| 60 | {ROAR_HT_SHA224, "SHA224", 28 }, |
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| 61 | {ROAR_HT_MD4, "MD4", 16 }, |
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| 62 | {ROAR_HT_CRC32, "CRC32", 4 }, |
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| 63 | {ROAR_HT_RFC1510, "RFC1510", 4 }, |
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| 64 | {ROAR_HT_RFC2440, "RFC2440", 3 }, |
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| 65 | {ROAR_HT_WHIRLPOOL, "WHIRLPOOL", 64 }, |
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| 66 | {ROAR_HT_UUID, "UUID", 16 }, |
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| 67 | {ROAR_HT_GTN8, "GTN8", 1 }, |
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| 68 | {ROAR_HT_GTN16, "GTN16", 2 }, |
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| 69 | {ROAR_HT_GTN32, "GTN32", 4 }, |
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| 70 | {ROAR_HT_GTN64, "GTN64", 8 }, |
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| 71 | {ROAR_HT_CLIENTID, "CLIENTID", -1 }, |
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| 72 | {ROAR_HT_STREAMID, "STREAMID", -1 }, |
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| 73 | {ROAR_HT_SOURCEID, "SOURCEID", -1 }, |
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| 74 | {ROAR_HT_SAMPLEID, "SAMPLEID", -1 }, |
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| 75 | {ROAR_HT_MIXERID, "MIXERID", -1 }, |
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| 76 | {ROAR_HT_BRIDGEID, "BRIDGEID", -1 }, |
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| 77 | {ROAR_HT_LISTENID, "LISTENID", -1 }, |
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| 78 | {ROAR_HT_ACTIONID, "ACTIONID", -1 }, |
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| 79 | {ROAR_HT_MSGQUEUEID, "MSGQUEUEID", -1 }, |
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| 80 | {ROAR_HT_MSGBUSID, "MSGBUSID", -1 }, |
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| 81 | {ROAR_HT_GTIN8, "GTIN8", 4 }, |
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| 82 | {ROAR_HT_GTIN13, "GTIN13", 8 }, |
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| 83 | {ROAR_HT_ISBN10, "ISBN10", 8 }, |
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| 84 | {ROAR_HT_ISBN13, "ISBN13", 8 }, |
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[4450] | 85 | {-1, NULL} |
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| 86 | }; |
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| 87 | |
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[4451] | 88 | static inline int roar_ht2gcrypt_tested (const int ht) { |
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| 89 | const char * name; |
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| 90 | |
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| 91 | if ( ht > 512 ) |
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| 92 | return -1; |
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| 93 | |
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| 94 | // test the algo: |
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| 95 | name = gcry_md_algo_name(ht); |
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| 96 | |
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| 97 | if ( name == NULL ) |
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| 98 | return -1; |
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| 99 | |
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| 100 | if ( *name == 0 ) |
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| 101 | return -1; |
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| 102 | |
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| 103 | return ht; |
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| 104 | } |
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| 105 | |
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[4450] | 106 | const char * roar_ht2str (const int ht) { |
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| 107 | int i; |
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| 108 | |
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| 109 | for (i = 0; _libroar_hashes[i].id != -1; i++) |
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| 110 | if ( _libroar_hashes[i].id == ht ) |
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| 111 | return _libroar_hashes[i].name; |
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| 112 | |
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| 113 | return NULL; |
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| 114 | } |
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| 115 | |
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| 116 | int roar_str2ht (const char * ht) { |
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| 117 | int i; |
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| 118 | |
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| 119 | for (i = 0; _libroar_hashes[i].id != -1; i++) |
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| 120 | if ( !strcasecmp(_libroar_hashes[i].name, ht) ) |
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| 121 | return _libroar_hashes[i].id; |
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| 122 | |
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| 123 | return -1; |
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| 124 | } |
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| 125 | |
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[4453] | 126 | ssize_t roar_ht_digestlen (const int ht) { |
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| 127 | int i; |
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| 128 | |
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| 129 | for (i = 0; _libroar_hashes[i].id != -1; i++) |
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| 130 | if ( _libroar_hashes[i].id == ht ) |
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| 131 | return _libroar_hashes[i].dlen; |
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| 132 | |
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| 133 | return -1; |
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| 134 | } |
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| 135 | |
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| 136 | int roar_ht_is_supported(const int ht) { |
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[4454] | 137 | roar_crypto_init(); |
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| 138 | |
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[4453] | 139 | #ifdef ROAR_HAVE_LIBGCRYPT |
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| 140 | if ( roar_ht2gcrypt_tested(ht) == -1 ) |
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| 141 | return 0; |
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| 142 | |
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| 143 | return 1; |
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| 144 | #else |
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| 145 | return 0; |
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| 146 | #endif |
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| 147 | } |
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| 148 | |
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[4450] | 149 | int roar_hash_buffer(void * digest, const void * data, size_t datalen, int algo) { |
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[4454] | 150 | roar_crypto_init(); |
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| 151 | |
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[4450] | 152 | return roar_hash_salted_buffer(digest, data, datalen, algo, NULL, 0); |
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| 153 | } |
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| 154 | |
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[4451] | 155 | #ifdef ROAR_HAVE_LIBGCRYPT |
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| 156 | static inline int roar_hash_salted_buffer_gcrypt(void * digest, const void * data, size_t datalen, int algo, const void * salt, size_t saltlen) { |
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| 157 | gcry_md_hd_t hdl; |
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| 158 | |
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[4454] | 159 | roar_crypto_init(); |
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| 160 | |
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[4451] | 161 | algo = roar_ht2gcrypt_tested(algo); |
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| 162 | if ( algo == -1 ) |
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| 163 | return -1; |
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| 164 | |
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| 165 | |
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| 166 | if ( salt == NULL ) { |
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| 167 | // optimized for unsalted: |
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| 168 | gcry_md_hash_buffer(algo, digest, data, datalen); |
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| 169 | return 0; |
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| 170 | } else { |
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| 171 | if ( gcry_md_open(&hdl, algo, 0) != 0 ) |
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| 172 | return -1; |
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| 173 | |
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| 174 | gcry_md_write(hdl, data, datalen); |
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| 175 | gcry_md_write(hdl, salt, saltlen); |
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| 176 | |
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| 177 | memcpy(digest, gcry_md_read(hdl, algo), gcry_md_get_algo_dlen(algo)); |
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| 178 | |
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| 179 | gcry_md_close(hdl); |
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| 180 | } |
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| 181 | |
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| 182 | return 0; |
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| 183 | } |
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| 184 | #endif |
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| 185 | |
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[4450] | 186 | int roar_hash_salted_buffer(void * digest, const void * data, size_t datalen, int algo, const void * salt, size_t saltlen) { |
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[4451] | 187 | if ( digest == NULL || data == NULL ) |
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| 188 | return -1; |
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| 189 | |
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| 190 | #ifdef ROAR_HAVE_LIBGCRYPT |
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| 191 | return roar_hash_salted_buffer_gcrypt(digest, data, datalen, algo, salt, saltlen); |
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| 192 | #else |
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[4450] | 193 | return -1; |
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[4451] | 194 | #endif |
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[4450] | 195 | } |
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| 196 | |
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[4446] | 197 | //ll |
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