added libtomcrypt-1.00

src/modes/cbc/cbc_setiv.c

@@ -0,0 +1,40 @@
+/* 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@iahu.ca, http://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+   @file cbc_setiv.c
+   CBC implementation, set IV, Tom St Denis
+*/
+
+
+#ifdef CBC
+
+/**
+   Set an initial vector
+   @param IV   The initial vector
+   @param len  The length of the vector (in octets)
+   @param cbc  The CBC state
+   @return CRYPT_OK if successful
+*/
+int cbc_setiv(const unsigned char *IV, unsigned long len, symmetric_CBC *cbc)
+{
+   LTC_ARGCHK(IV  != NULL);
+   LTC_ARGCHK(cbc != NULL);
+   if (len != (unsigned long)cbc->blocklen) {
+      return CRYPT_INVALID_ARG;
+   }
+   XMEMCPY(cbc->IV, IV, len);
+   return CRYPT_OK;
+}
+
+#endif 
+