remove encauth ocb ocb3

[zpackage] / libtomcrypt / src / encauth / ocb3 / ocb3_decrypt_verify_memory.c

diff --git a/libtomcrypt/src/encauth/ocb3/ocb3_decrypt_verify_memory.c b/libtomcrypt/src/encauth/ocb3/ocb3_decrypt_verify_memory.c
deleted file mode 100644 (file)
index 066b62c..0000000
--- a/libtomcrypt/src/encauth/ocb3/ocb3_decrypt_verify_memory.c
+++ /dev/null
@@ -1,110 +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 ocb3_decrypt_verify_memory.c
-  OCB implementation, helper to decrypt block of memory, by Tom St Denis
-*/
-#include "tomcrypt.h"
-
-#ifdef LTC_OCB3_MODE
-
-/**
-   Decrypt and compare the tag with OCB
-   @param cipher     The index of the cipher desired
-   @param key        The secret key
-   @param keylen     The length of the secret key (octets)
-   @param nonce      The session nonce (length of the block size of the block cipher)
-   @param noncelen   The length of the nonce (octets)
-   @param adata      The AAD - additional associated data
-   @param adatalen   The length of AAD (octets)
-   @param ct         The ciphertext
-   @param ctlen      The length of the ciphertext (octets)
-   @param pt         [out] The plaintext
-   @param tag        The tag to compare against
-   @param taglen     The length of the tag (octets)
-   @param stat       [out] The result of the tag comparison (1==valid, 0==invalid)
-   @return CRYPT_OK if successful regardless of the tag comparison
-*/
-int ocb3_decrypt_verify_memory(int cipher,
-    const unsigned char *key,    unsigned long keylen,
-    const unsigned char *nonce,  unsigned long noncelen,
-    const unsigned char *adata,  unsigned long adatalen,
-    const unsigned char *ct,     unsigned long ctlen,
-          unsigned char *pt,
-    const unsigned char *tag,    unsigned long taglen,
-          int           *stat)
-{
-   int            err;
-   ocb3_state     *ocb;
-   unsigned char *buf;
-   unsigned long  buflen;
-
-   LTC_ARGCHK(stat    != NULL);
-
-   /* default to zero */
-   *stat = 0;
-
-   /* limit taglen */
-   taglen = MIN(taglen, MAXBLOCKSIZE);
-
-   /* allocate memory */
-   buf = XMALLOC(taglen);
-   ocb = XMALLOC(sizeof(ocb3_state));
-   if (ocb == NULL || buf == NULL) {
-      if (ocb != NULL) {
-         XFREE(ocb);
-      }
-      if (buf != NULL) {
-         XFREE(buf);
-      }
-      return CRYPT_MEM;
-   }
-
-   if ((err = ocb3_init(ocb, cipher, key, keylen, nonce, noncelen, taglen)) != CRYPT_OK) {
-      goto LBL_ERR;
-   }
-
-   if (adata != NULL || adatalen != 0) {
-      if ((err = ocb3_add_aad(ocb, adata, adatalen)) != CRYPT_OK) {
-         goto LBL_ERR;
-      }
-   }
-
-   if ((err = ocb3_decrypt_last(ocb, ct, ctlen, pt)) != CRYPT_OK) {
-      goto LBL_ERR;
-   }
-
-   buflen = taglen;
-   if ((err = ocb3_done(ocb, 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(ocb, sizeof(ocb3_state));
-#endif
-
-   XFREE(ocb);
-   XFREE(buf);
-   return err;
-}
-
-#endif
-
-/* ref:         $Format:%D$ */
-/* git commit:  $Format:%H$ */
-/* commit time: $Format:%ai$ */