remove ltc encauth eax

[zpackage] / libtomcrypt / src / encauth / eax / eax_decrypt_verify_memory.c

diff --git a/libtomcrypt/src/encauth/eax/eax_decrypt_verify_memory.c b/libtomcrypt/src/encauth/eax/eax_decrypt_verify_memory.c
deleted file mode 100644 (file)
index 8c6540f..0000000
--- a/libtomcrypt/src/encauth/eax/eax_decrypt_verify_memory.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/* 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_verify_memory.c
-    EAX implementation, decrypt block of memory, by Tom St Denis
-*/
-#include "tomcrypt.h"
-
-#ifdef LTC_EAX_MODE
-
-/**
-   Decrypt a block of memory and verify the provided MAC tag with EAX
-   @param cipher     The index of the cipher desired
-   @param key        The secret key
-   @param keylen     The length of the key (octets)
-   @param nonce      The nonce data (use once) for the session
-   @param noncelen   The length of the nonce data.
-   @param header     The session header data
-   @param headerlen  The length of the header (octets)
-   @param ct         The ciphertext
-   @param ctlen      The length of the ciphertext (octets)
-   @param pt         [out] The plaintext
-   @param tag        The authentication tag provided by the encoder
-   @param taglen     [in/out] The length of the tag (octets)
-   @param stat       [out] The result of the decryption (1==valid tag, 0==invalid)
-   @return CRYPT_OK if successful regardless of the resulting tag comparison
-*/
-int eax_decrypt_verify_memory(int cipher,
-    const unsigned char *key,    unsigned long keylen,
-    const unsigned char *nonce,  unsigned long noncelen,
-    const unsigned char *header, unsigned long headerlen,
-    const unsigned char *ct,     unsigned long ctlen,
-          unsigned char *pt,
-          unsigned char *tag,    unsigned long taglen,
-          int           *stat)
-{
-   int            err;
-   eax_state     *eax;
-   unsigned char *buf;
-   unsigned long  buflen;
-
-   LTC_ARGCHK(stat != NULL);
-   LTC_ARGCHK(key  != NULL);
-   LTC_ARGCHK(pt   != NULL);
-   LTC_ARGCHK(ct   != NULL);
-   LTC_ARGCHK(tag  != NULL);
-
-   /* default to zero */
-   *stat = 0;
-
-   /* limit taglen */
-   taglen = MIN(taglen, MAXBLOCKSIZE);
-
-   /* allocate ram */
-   buf = XMALLOC(taglen);
-   eax = XMALLOC(sizeof(*eax));
-   if (eax == NULL || buf == NULL) {
-      if (eax != NULL) {
-         XFREE(eax);
-      }
-      if (buf != NULL) {
-         XFREE(buf);
-      }
-      return CRYPT_MEM;
-   }
-
-   if ((err = eax_init(eax, cipher, key, keylen, nonce, noncelen, header, headerlen)) != CRYPT_OK) {
-      goto LBL_ERR;
-   }
-
-   if ((err = eax_decrypt(eax, ct, pt, ctlen)) != CRYPT_OK) {
-      goto LBL_ERR;
-   }
-
-   buflen = taglen;
-   if ((err = eax_done(eax, buf, &buflen)) != CRYPT_OK) {
-      goto LBL_ERR;
-   }
-
-   /* compare tags */
-   if (buflen >= taglen && XMEM_NEQ(buf, tag, taglen) == 0) {
-      *stat = 1;
-   }
-
-   err = CRYPT_OK;
-LBL_ERR:
-#ifdef LTC_CLEAN_STACK
-   zeromem(buf, taglen);
-   zeromem(eax, sizeof(*eax));
-#endif
-
-   XFREE(eax);
-   XFREE(buf);
-
-   return err;
-}
-
-#endif
-
-/* ref:         $Format:%D$ */
-/* git commit:  $Format:%H$ */
-/* commit time: $Format:%ai$ */