Major restructuring of the internals of SILC Cipher API

[crypto.git] / lib / silccrypt / rc5.h

diff --git a/lib/silccrypt/rc5.h b/lib/silccrypt/rc5.h
index 7d5a23ed14dedf76bd38e693fdf4ea16686bb860..835f771fe855b319776cf828b076cddd6913ecac 100644 (file)
--- a/lib/silccrypt/rc5.h
+++ b/lib/silccrypt/rc5.h
@@ -2,133 +2,33 @@
 
   rc5.h
 
-  Author: Pekka Riikonen <priikone@poseidon.pspt.fi>
+  Author: Pekka Riikonen <priikone@silcnet.org>
 
   Copyright (C) 1997 - 2000 Pekka Riikonen
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
-  (at your option) any later version.
-  
+  the Free Software Foundation; version 2 of the License.
+
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
 */
-/*
- * $Id$
- * $Log$
- * Revision 1.1  2000/06/27 11:36:54  priikone
- * Initial revision
- *
- *
- */
 
 #ifndef RC5_H
 #define RC5_H
 
-#include "rc5_internal.h"
-
-/* 
+/*
  * SILC Crypto API for RC5
  */
 
-/* Sets the key for the cipher. */
-
-SILC_CIPHER_API_SET_KEY(rc5)
-{
-  rc5_set_key((RC5Context *)context, (unsigned char *)key, keylen);
-  return 1;
-}
-
-/* Sets the string as a new key for the cipher. The string is first
-   hashed and then used as a new key. */
-
-SILC_CIPHER_API_SET_KEY_WITH_STRING(rc5)
-{
-  /*  unsigned char key[md5_hash_len];
-  SilcMarsContext *ctx = (SilcMarsContext *)context;
-
-  make_md5_hash(string, &key);
-  memcpy(&ctx->key, mars_set_key(&key, keylen), keylen);
-  memset(&key, 'F', sizeoof(key));
-  */
-
-  return 1;
-}
-
-/* Returns the size of the cipher context. */
-
-SILC_CIPHER_API_CONTEXT_LEN(rc5)
-{
-  return sizeof(RC5Context);
-}
-
-/* Encrypts with the cipher in CBC mode. */
-
-SILC_CIPHER_API_ENCRYPT_CBC(rc5)
-{
-  unsigned int *in, *out, *tiv;
-  unsigned int tmp[2];
-  int i;
-
-  in = (unsigned int *)src;
-  out = (unsigned int *)dst;
-  tiv = (unsigned int *)iv;
-
-  tmp[0] = in[0] ^ tiv[0];
-  tmp[1] = in[1] ^ tiv[1];
-  rc5_encrypt((RC5Context *)context, tmp, out);
-  in += 2;
-  out += 2;
-
-  for (i = 8; i < len; i += 8) {
-    tmp[0] = in[0] ^ out[0 - 2];
-    tmp[1] = in[1] ^ out[1 - 2];
-    rc5_encrypt((RC5Context *)context, tmp, out);
-    in += 2;
-    out += 2;
-  }
-
-  return TRUE;
-}
-
-/* Decrypts with the cipher in CBC mode. */
-
-SILC_CIPHER_API_DECRYPT_CBC(rc5)
-{
-  unsigned int *in, *out, *tiv;
-  unsigned int tmp[2], tmp2[2];
-  int i;
-
-  in = (unsigned int *)src;
-  out = (unsigned int *)dst;
-  tiv = (unsigned int *)iv;
-
-  tmp[0] = in[0];
-  tmp[1] = in[1];
-  tmp[3] = in[3];
-  rc5_decrypt((RC5Context *)context, in, out);
-  out[0] ^= tiv[0];
-  out[1] ^= tiv[1];
-  in += 2;
-  out += 2;
-
-  for (i = 8; i < len; i += 8) {
-    tmp2[0] = tmp[0];
-    tmp2[1] = tmp[1];
-    tmp[0] = in[0];
-    tmp[1] = in[1];
-    rc5_decrypt((RC5Context *)context, in, out);
-    out[0] ^= tmp2[0];
-    out[1] ^= tmp2[1];
-    in += 2;
-    out += 2;
-  }
-
-  return TRUE;
-}
+SILC_CIPHER_API_SET_KEY(rc5_cbc);
+SILC_CIPHER_API_SET_IV(rc5_cbc);
+SILC_CIPHER_API_INIT(rc5_cbc);
+SILC_CIPHER_API_UNINIT(rc5_cbc);
+SILC_CIPHER_API_ENCRYPT(rc5_cbc);
+SILC_CIPHER_API_DECRYPT(rc5_cbc);
 
 #endif