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comparison libtomcrypt/src/mac/pmac/pmac_ntz.c @ 285:1b9e69c058d2

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propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3) to branch 'au.asn.ucc.matt.dropbear' (head fdf4a7a3b97ae5046139915de7e40399cceb2c01)
author Matt Johnston <matt@ucc.asn.au>
date Wed, 08 Mar 2006 13:23:58 +0000
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281:997e6f7dc01e 285:1b9e69c058d2
1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
2 *
3 * LibTomCrypt is a library that provides various cryptographic
4 * algorithms in a highly modular and flexible manner.
5 *
6 * The library is free for all purposes without any express
7 * guarantee it works.
8 *
9 * Tom St Denis, [email protected], http://libtomcrypt.org
10 */
11 #include "tomcrypt.h"
12
13 /**
14 @file pmac_ntz.c
15 PMAC implementation, internal function, by Tom St Denis
16 */
17
18 #ifdef PMAC
19
20 /**
21 Internal PMAC function
22 */
23 int pmac_ntz(unsigned long x)
24 {
25 int c;
26 x &= 0xFFFFFFFFUL;
27 c = 0;
28 while ((x & 1) == 0) {
29 ++c;
30 x >>= 1;
31 }
32 return c;
33 }
34
35 #endif
36
37 /* $Source: /cvs/libtom/libtomcrypt/src/mac/pmac/pmac_ntz.c,v $ */
38 /* $Revision: 1.3 $ */
39 /* $Date: 2005/05/05 14:35:59 $ */