diff options
Diffstat (limited to 'libtomcrypt/src/mac/pmac/pmac_ntz.c')
| -rw-r--r-- | libtomcrypt/src/mac/pmac/pmac_ntz.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/libtomcrypt/src/mac/pmac/pmac_ntz.c b/libtomcrypt/src/mac/pmac/pmac_ntz.c new file mode 100644 index 0000000..8322563 --- /dev/null +++ b/libtomcrypt/src/mac/pmac/pmac_ntz.c @@ -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, tomstdenis@gmail.com, http://libtomcrypt.com + */ +#include "tomcrypt.h" + +/** + @file pmac_ntz.c + PMAC implementation, internal function, by Tom St Denis +*/ + +#ifdef LTC_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: 1.5 $ */ +/* $Date: 2006/11/03 00:39:49 $ */ |