+++ /dev/null
-/* crypto/bf/bf_skey.c */
-/* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@mincom.oz.au).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@mincom.oz.au).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@mincom.oz.au)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@mincom.oz.au)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
-
-#include <stdio.h>
-#include <string.h>
-#include "blowfish.h"
-#include "bf_locl.h"
-#include "bf_pi.h"
-
-void BF_set_key(key,len,data)
-BF_KEY *key;
-int len;
-unsigned char *data;
- {
- int i;
- BF_LONG *p,ri,in[2];
- unsigned char *d,*end;
-
-
- memcpy((char *)key,(char *)&bf_init,sizeof(BF_KEY));
- p=key->P;
-
- if (len > ((BF_ROUNDS+2)*4)) len=(BF_ROUNDS+2)*4;
-
- d=data;
- end= &(data[len]);
- for (i=0; i<(BF_ROUNDS+2); i++)
- {
- ri= *(d++);
- if (d >= end) d=data;
-
- ri<<=8;
- ri|= *(d++);
- if (d >= end) d=data;
-
- ri<<=8;
- ri|= *(d++);
- if (d >= end) d=data;
-
- ri<<=8;
- ri|= *(d++);
- if (d >= end) d=data;
-
- p[i]^=ri;
- }
-
- in[0]=0L;
- in[1]=0L;
- for (i=0; i<(BF_ROUNDS+2); i+=2)
- {
- BF_encrypt(in,key,BF_ENCRYPT);
- p[i ]=in[0];
- p[i+1]=in[1];
- }
-
- p=key->S;
- for (i=0; i<4*256; i+=2)
- {
- BF_encrypt(in,key,BF_ENCRYPT);
- p[i ]=in[0];
- p[i+1]=in[1];
- }
- }
-
projects / tinc / blobdiff