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[zpackage] / libtomcrypt / src / modes / ofb / ofb_decrypt.c
diff --git a/libtomcrypt/src/modes/ofb/ofb_decrypt.c b/libtomcrypt/src/modes/ofb/ofb_decrypt.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.
+ */
+#include "tomcrypt.h"
+
+/**
+  @file ofb_decrypt.c
+  OFB implementation, decrypt data, Tom St Denis
+*/
+
+#ifdef LTC_OFB_MODE
+
+/**
+   OFB decrypt
+   @param ct      Ciphertext
+   @param pt      [out] Plaintext
+   @param len     Length of ciphertext (octets)
+   @param ofb     OFB state
+   @return CRYPT_OK if successful
+*/
+int ofb_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_OFB *ofb)
+{
+   LTC_ARGCHK(pt != NULL);
+   LTC_ARGCHK(ct != NULL);
+   LTC_ARGCHK(ofb != NULL);
+   return ofb_encrypt(ct, pt, len, ofb);
+}
+
+
+#endif
+
+
+
+/* ref:         $Format:%D$ */
+/* git commit:  $Format:%H$ */
+/* commit time: $Format:%ai$ */