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Diffstat (limited to 'libtomcrypt/src/mac/pmac/pmac_ntz.c')
-rw-r--r--libtomcrypt/src/mac/pmac/pmac_ntz.c39
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
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+++ b/libtomcrypt/src/mac/pmac/pmac_ntz.c
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+/* 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 $ */