Mercurial > dropbear
diff libtomcrypt/src/mac/pmac/pmac_ntz.c @ 297:79bf1023cf11 agent-client
propagate from branch 'au.asn.ucc.matt.dropbear' (head 0501e6f661b5415eb76f3b312d183c3adfbfb712)
to branch 'au.asn.ucc.matt.dropbear.cli-agent' (head 01038174ec27245b51bd43a66c01ad930880f67b)
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Tue, 21 Mar 2006 16:20:59 +0000 |
| parents | 1b9e69c058d2 |
| children | 0cbe8f6dbf9e |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libtomcrypt/src/mac/pmac/pmac_ntz.c Tue Mar 21 16:20:59 2006 +0000 @@ -0,0 +1,39 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, [email protected], http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file pmac_ntz.c + PMAC implementation, internal function, by Tom St Denis +*/ + +#ifdef PMAC + +/** + Internal PMAC function +*/ +int pmac_ntz(unsigned long x) +{ + int c; + x &= 0xFFFFFFFFUL; + c = 0; + while ((x & 1) == 0) { + ++c; + x >>= 1; + } + return c; +} + +#endif + +/* $Source: /cvs/libtom/libtomcrypt/src/mac/pmac/pmac_ntz.c,v $ */ +/* $Revision: 1.3 $ */ +/* $Date: 2005/05/05 14:35:59 $ */