diff src/modes/ctr/ctr_done.c @ 191:1c15b283127b libtomcrypt-orig

Import of libtomcrypt 1.02 with manual path rename rearrangement etc
author Matt Johnston <matt@ucc.asn.au>
date Fri, 06 May 2005 13:23:02 +0000
parents
children 39d5d58461d6
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/modes/ctr/ctr_done.c	Fri May 06 13:23:02 2005 +0000
@@ -0,0 +1,38 @@
+/* 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 ctr_done.c
+   CTR implementation, finish chain, Tom St Denis
+*/
+
+#ifdef CTR
+
+/** Terminate the chain
+  @param ctr    The CTR chain to terminate
+  @return CRYPT_OK on success
+*/
+int ctr_done(symmetric_CTR *ctr)
+{
+   int err;
+   LTC_ARGCHK(ctr != NULL);
+
+   if ((err = cipher_is_valid(ctr->cipher)) != CRYPT_OK) {
+      return err;
+   }
+   cipher_descriptor[ctr->cipher].done(&ctr->key);
+   return CRYPT_OK;
+}
+
+   
+
+#endif