Mercurial > dropbear
comparison ocb_ntz.c @ 3:7faae8f46238 libtomcrypt-orig
Branch renaming
author | Matt Johnston <matt@ucc.asn.au> |
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date | Mon, 31 May 2004 18:25:41 +0000 |
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-1:000000000000 | 3:7faae8f46238 |
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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 | |
12 /* OCB Implementation by Tom St Denis */ | |
13 #include "mycrypt.h" | |
14 | |
15 #ifdef OCB_MODE | |
16 | |
17 int ocb_ntz(unsigned long x) | |
18 { | |
19 int c; | |
20 x &= 0xFFFFFFFFUL; | |
21 c = 0; | |
22 while ((x & 1) == 0) { | |
23 ++c; | |
24 x >>= 1; | |
25 } | |
26 return c; | |
27 } | |
28 | |
29 #endif |