--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cfb_start.c	Mon May 31 18:25:41 2004 +0000
@@ -0,0 +1,47 @@
+/* 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 "mycrypt.h"
+
+#ifdef CFB
+
+int cfb_start(int cipher, const unsigned char *IV, const unsigned char *key, 
+              int keylen, int num_rounds, symmetric_CFB *cfb)
+{
+   int x, err;
+
+   _ARGCHK(IV != NULL);
+   _ARGCHK(key != NULL);
+   _ARGCHK(cfb != NULL);
+
+   if ((err = cipher_is_valid(cipher)) != CRYPT_OK) {
+      return err;
+   }
+   
+
+   /* copy data */
+   cfb->cipher = cipher;
+   cfb->blocklen = cipher_descriptor[cipher].block_length;
+   for (x = 0; x < cfb->blocklen; x++)
+       cfb->IV[x] = IV[x];
+
+   /* init the cipher */
+   if ((err = cipher_descriptor[cipher].setup(key, keylen, num_rounds, &cfb->key)) != CRYPT_OK) {
+      return err;
+   }
+
+   /* encrypt the IV */
+   cipher_descriptor[cfb->cipher].ecb_encrypt(cfb->IV, cfb->IV, &cfb->key);
+   cfb->padlen = 0;
+
+   return CRYPT_OK;
+}
+
+#endif