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comparison libtomcrypt/src/mac/pmac/pmac_ntz.c @ 389:5ff8218bcee9

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propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 2af95f00ebd5bb7a28b3817db1218442c935388e) to branch 'au.asn.ucc.matt.dropbear' (head ecd779509ef23a8cdf64888904fc9b31d78aa933)
author Matt Johnston <matt@ucc.asn.au>
date Thu, 11 Jan 2007 03:14:55 +0000
parents 0cbe8f6dbf9e
children f849a5ca2efc
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388:fb54020f78e1 389:5ff8218bcee9
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.com
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 LTC_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: 1.5 $ */
39 /* $Date: 2006/11/03 00:39:49 $ */