remove f8 lrw xts modes

[zpackage] / libtomcrypt / src / modes / f8 / f8_start.c

diff --git a/libtomcrypt/src/modes/f8/f8_start.c b/libtomcrypt/src/modes/f8/f8_start.c
deleted file mode 100644 (file)
index 6801702..0000000
--- a/libtomcrypt/src/modes/f8/f8_start.c
+++ /dev/null
@@ -1,96 +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 f8_start.c
-   F8 implementation, start chain, Tom St Denis
-*/
-
-
-#ifdef LTC_F8_MODE
-
-/**
-   Initialize an F8 context
-   @param cipher      The index of the cipher desired
-   @param IV          The initialization vector
-   @param key         The secret key
-   @param keylen      The length of the secret key (octets)
-   @param salt_key    The salting key for the IV
-   @param skeylen     The length of the salting key (octets)
-   @param num_rounds  Number of rounds in the cipher desired (0 for default)
-   @param f8          The F8 state to initialize
-   @return CRYPT_OK if successful
-*/
-int f8_start(                int  cipher, const unsigned char *IV,
-             const unsigned char *key,                    int  keylen,
-             const unsigned char *salt_key,               int  skeylen,
-                             int  num_rounds,   symmetric_F8  *f8)
-{
-   int           x, err;
-   unsigned char tkey[MAXBLOCKSIZE];
-
-   LTC_ARGCHK(IV       != NULL);
-   LTC_ARGCHK(key      != NULL);
-   LTC_ARGCHK(salt_key != NULL);
-   LTC_ARGCHK(f8       != NULL);
-
-   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
-
-   /* copy details */
-   f8->blockcnt = 0;
-   f8->cipher   = cipher;
-   f8->blocklen = cipher_descriptor[cipher].block_length;
-   f8->padlen   = f8->blocklen;
-
-   /* now get key ^ salt_key [extend salt_ket with 0x55 as required to match length] */
-   zeromem(tkey, sizeof(tkey));
-   for (x = 0; x < keylen && x < (int)sizeof(tkey); x++) {
-       tkey[x] = key[x];
-   }
-   for (x = 0; x < skeylen && x < (int)sizeof(tkey); x++) {
-       tkey[x] ^= salt_key[x];
-   }
-   for (; x < keylen && x < (int)sizeof(tkey); x++) {
-       tkey[x] ^= 0x55;
-   }
-
-   /* now encrypt with tkey[0..keylen-1] the IV and use that as the IV */
-   if ((err = cipher_descriptor[cipher].setup(tkey, keylen, num_rounds, &f8->key)) != CRYPT_OK) {
-      return err;
-   }
-
-   /* encrypt IV */
-   if ((err = cipher_descriptor[f8->cipher].ecb_encrypt(IV, f8->MIV, &f8->key)) != CRYPT_OK) {
-      cipher_descriptor[f8->cipher].done(&f8->key);
-      return err;
-   }
-   zeromem(tkey, sizeof(tkey));
-   zeromem(f8->IV, sizeof(f8->IV));
-
-   /* terminate this cipher */
-   cipher_descriptor[f8->cipher].done(&f8->key);
-
-   /* init the cipher */
-   return cipher_descriptor[cipher].setup(key, keylen, num_rounds, &f8->key);
-}
-
-#endif
-
-/* ref:         $Format:%D$ */
-/* git commit:  $Format:%H$ */
-/* commit time: $Format:%ai$ */