--- /dev/null
+/* 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.
+ */
+
+/**
+ @file eax_decrypt.c
+ EAX implementation, decrypt block, by Tom St Denis
+*/
+#include "tomcrypt.h"
+
+#ifdef LTC_EAX_MODE
+
+/**
+ Decrypt data with the EAX protocol
+ @param eax The EAX state
+ @param ct The ciphertext
+ @param pt [out] The plaintext
+ @param length The length (octets) of the ciphertext
+ @return CRYPT_OK if successful
+*/
+int eax_decrypt(eax_state *eax, const unsigned char *ct, unsigned char *pt,
+ unsigned long length)
+{
+ int err;
+
+ LTC_ARGCHK(eax != NULL);
+ LTC_ARGCHK(pt != NULL);
+ LTC_ARGCHK(ct != NULL);
+
+ /* omac ciphertext */
+ if ((err = omac_process(&eax->ctomac, ct, length)) != CRYPT_OK) {
+ return err;
+ }
+
+ /* decrypt */
+ return ctr_decrypt(ct, pt, length, &eax->ctr);
+}
+
+#endif
+
+/* ref: $Format:%D$ */
+/* git commit: $Format:%H$ */
+/* commit time: $Format:%ai$ */