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      1 /*	$NetBSD: bf_ecb.c,v 1.3 2005/12/11 12:20:48 christos Exp $	*/
      2 
      3 /* crypto/bf/bf_ecb.c */
      4 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com)
      5  * All rights reserved.
      6  *
      7  * This package is an SSL implementation written
      8  * by Eric Young (eay (at) cryptsoft.com).
      9  * The implementation was written so as to conform with Netscapes SSL.
     10  *
     11  * This library is free for commercial and non-commercial use as long as
     12  * the following conditions are aheared to.  The following conditions
     13  * apply to all code found in this distribution, be it the RC4, RSA,
     14  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
     15  * included with this distribution is covered by the same copyright terms
     16  * except that the holder is Tim Hudson (tjh (at) cryptsoft.com).
     17  *
     18  * Copyright remains Eric Young's, and as such any Copyright notices in
     19  * the code are not to be removed.
     20  * If this package is used in a product, Eric Young should be given attribution
     21  * as the author of the parts of the library used.
     22  * This can be in the form of a textual message at program startup or
     23  * in documentation (online or textual) provided with the package.
     24  *
     25  * Redistribution and use in source and binary forms, with or without
     26  * modification, are permitted provided that the following conditions
     27  * are met:
     28  * 1. Redistributions of source code must retain the copyright
     29  *    notice, this list of conditions and the following disclaimer.
     30  * 2. Redistributions in binary form must reproduce the above copyright
     31  *    notice, this list of conditions and the following disclaimer in the
     32  *    documentation and/or other materials provided with the distribution.
     33  * 3. All advertising materials mentioning features or use of this software
     34  *    must display the following acknowledgement:
     35  *    "This product includes cryptographic software written by
     36  *     Eric Young (eay (at) cryptsoft.com)"
     37  *    The word 'cryptographic' can be left out if the rouines from the library
     38  *    being used are not cryptographic related :-).
     39  * 4. If you include any Windows specific code (or a derivative thereof) from
     40  *    the apps directory (application code) you must include an acknowledgement:
     41  *    "This product includes software written by Tim Hudson (tjh (at) cryptsoft.com)"
     42  *
     43  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
     44  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     45  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     46  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     47  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     48  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     49  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     50  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     51  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     52  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     53  * SUCH DAMAGE.
     54  *
     55  * The licence and distribution terms for any publically available version or
     56  * derivative of this code cannot be changed.  i.e. this code cannot simply be
     57  * copied and put under another distribution licence
     58  * [including the GNU Public Licence.]
     59  */
     60 
     61 #include <sys/cdefs.h>
     62 __KERNEL_RCSID(0, "$NetBSD: bf_ecb.c,v 1.3 2005/12/11 12:20:48 christos Exp $");
     63 
     64 #include <sys/types.h>
     65 
     66 #include <crypto/blowfish/blowfish.h>
     67 #include "bf_locl.h"
     68 
     69 /* Blowfish as implemented from 'Blowfish: Springer-Verlag paper'
     70  * (From LECTURE NOTES IN COMPUTER SCIENCE 809, FAST SOFTWARE ENCRYPTION,
     71  * CAMBRIDGE SECURITY WORKSHOP, CAMBRIDGE, U.K., DECEMBER 9-11, 1993)
     72  */
     73 
     74 void BF_ecb_encrypt(const unsigned char *in, unsigned char *out,
     75 	     const BF_KEY *key, int encrypt)
     76 	{
     77 	BF_LONG l,d[2];
     78 
     79 	n2l(in,l); d[0]=l;
     80 	n2l(in,l); d[1]=l;
     81 	if (encrypt)
     82 		BF_encrypt(d,key);
     83 	else
     84 		BF_decrypt(d,key);
     85 	l=d[0]; l2n(l,out);
     86 	l=d[1]; l2n(l,out);
     87 	l=d[0]=d[1]=0;
     88 	}
     89 
     90