Mercurial > dropbear
annotate libtomcrypt/src/misc/crypt/crypt_find_hash_oid.c @ 1416:33d90d219e03
Compile with -fno-strict-overflow if possible.
Needed for curve25519-donna https://github.com/agl/curve25519-donna/issues/31
author | Matt Johnston <matt@ucc.asn.au> |
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date | Fri, 23 Jun 2017 21:31:25 +0800 |
parents | 0cbe8f6dbf9e |
children | f849a5ca2efc |
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis |
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2 * |
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3 * LibTomCrypt is a library that provides various cryptographic |
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4 * algorithms in a highly modular and flexible manner. |
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5 * |
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6 * The library is free for all purposes without any express |
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7 * guarantee it works. |
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8 * |
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9 * Tom St Denis, [email protected], http://libtomcrypt.com |
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10 */ |
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11 #include "tomcrypt.h" |
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12 |
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13 /** |
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14 @file crypt_find_hash_oid.c |
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15 Find a hash, Tom St Denis |
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16 */ |
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17 |
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18 int find_hash_oid(const unsigned long *ID, unsigned long IDlen) |
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19 { |
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20 int x; |
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21 LTC_ARGCHK(ID != NULL); |
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22 LTC_MUTEX_LOCK(<c_hash_mutex); |
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23 for (x = 0; x < TAB_SIZE; x++) { |
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24 if (hash_descriptor[x].name != NULL && hash_descriptor[x].OIDlen == IDlen && !XMEMCMP(hash_descriptor[x].OID, ID, sizeof(unsigned long) * IDlen)) { |
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25 LTC_MUTEX_UNLOCK(<c_hash_mutex); |
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26 return x; |
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27 } |
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28 } |
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29 LTC_MUTEX_UNLOCK(<c_hash_mutex); |
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30 return -1; |
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31 } |
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32 |
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33 /* $Source: /cvs/libtom/libtomcrypt/src/misc/crypt/crypt_find_hash_oid.c,v $ */ |
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34 /* $Revision: 1.4 $ */ |
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35 /* $Date: 2006/11/01 09:28:17 $ */ |