remove xcbc

[zpackage] / libtomcrypt / src / mac / xcbc / xcbc_init.c

diff --git a/libtomcrypt/src/mac/xcbc/xcbc_init.c b/libtomcrypt/src/mac/xcbc/xcbc_init.c
deleted file mode 100644 (file)
index 4eccd5e..0000000
--- a/libtomcrypt/src/mac/xcbc/xcbc_init.c
+++ /dev/null
@@ -1,106 +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.
- */
-#include "tomcrypt.h"
-
-/**
-  @file xcbc_init.c
-  XCBC Support, start an XCBC state
-*/
-
-#ifdef LTC_XCBC
-
-/** Initialize XCBC-MAC state
-  @param xcbc    [out] XCBC state to initialize
-  @param cipher  Index of cipher to use
-  @param key     [in]  Secret key
-  @param keylen  Length of secret key in octets
-  Return CRYPT_OK on success
-*/
-int xcbc_init(xcbc_state *xcbc, int cipher, const unsigned char *key, unsigned long keylen)
-{
-   int            x, y, err;
-   symmetric_key *skey;
-   unsigned long  k1;
-
-   LTC_ARGCHK(xcbc != NULL);
-   LTC_ARGCHK(key  != NULL);
-
-   /* schedule the key */
-   if ((err = cipher_is_valid(cipher)) != CRYPT_OK) {
-      return err;
-   }
-
-#ifdef LTC_FAST
-   if (cipher_descriptor[cipher].block_length % sizeof(LTC_FAST_TYPE)) {
-       return CRYPT_INVALID_ARG;
-   }
-#endif
-
-   skey = NULL;
-
-   /* are we in pure XCBC mode with three keys? */
-   if (keylen & LTC_XCBC_PURE) {
-      keylen &= ~LTC_XCBC_PURE;
-
-      if (keylen < 2UL*cipher_descriptor[cipher].block_length) {
-         return CRYPT_INVALID_ARG;
-      }
-
-      k1      = keylen - 2*cipher_descriptor[cipher].block_length;
-      XMEMCPY(xcbc->K[0], key, k1);
-      XMEMCPY(xcbc->K[1], key+k1, cipher_descriptor[cipher].block_length);
-      XMEMCPY(xcbc->K[2], key+k1 + cipher_descriptor[cipher].block_length, cipher_descriptor[cipher].block_length);
-   } else {
-      /* use the key expansion */
-      k1      = cipher_descriptor[cipher].block_length;
-
-      /* schedule the user key */
-      skey = XCALLOC(1, sizeof(*skey));
-      if (skey == NULL) {
-         return CRYPT_MEM;
-      }
-
-      if ((err = cipher_descriptor[cipher].setup(key, keylen, 0, skey)) != CRYPT_OK) {
-         goto done;
-      }
-
-      /* make the three keys */
-      for (y = 0; y < 3; y++) {
-        for (x = 0; x < cipher_descriptor[cipher].block_length; x++) {
-           xcbc->K[y][x] = y + 1;
-        }
-        cipher_descriptor[cipher].ecb_encrypt(xcbc->K[y], xcbc->K[y], skey);
-      }
-   }
-
-   /* setup K1 */
-   err = cipher_descriptor[cipher].setup(xcbc->K[0], k1, 0, &xcbc->key);
-
-   /* setup struct */
-   zeromem(xcbc->IV, cipher_descriptor[cipher].block_length);
-   xcbc->blocksize = cipher_descriptor[cipher].block_length;
-   xcbc->cipher    = cipher;
-   xcbc->buflen    = 0;
-done:
-   cipher_descriptor[cipher].done(skey);
-   if (skey != NULL) {
-#ifdef LTC_CLEAN_STACK
-      zeromem(skey, sizeof(*skey));
-#endif
-      XFREE(skey);
-   }
-   return err;
-}
-
-#endif
-
-/* ref:         $Format:%D$ */
-/* git commit:  $Format:%H$ */
-/* commit time: $Format:%ai$ */
-