FreeBSD/Linux Kernel Cross Reference
sys/crypto/blowfish/bf_ecb.c

     /* crypto/bf/bf_ecb.c */
     /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
      * All rights reserved.
      *
      * This package is an SSL implementation written
      * by Eric Young (eay@cryptsoft.com).
      * 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@cryptsoft.com).
     * 
     * 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@cryptsoft.com)"
     *    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@cryptsoft.com)"
     * 
     * 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 <sys/cdefs.h>
    __FBSDID("$FreeBSD: releng/10.1/sys/crypto/blowfish/bf_ecb.c 121072 2003-10-13 19:26:08Z ume $");
    
    #include <sys/types.h>
    #include <crypto/blowfish/blowfish.h>
    #include <crypto/blowfish/bf_locl.h>
    
    /* Blowfish as implemented from 'Blowfish: Springer-Verlag paper'
     * (From LECTURE NOTES IN COMPUTER SCIENCE 809, FAST SOFTWARE ENCRYPTION,
     * CAMBRIDGE SECURITY WORKSHOP, CAMBRIDGE, U.K., DECEMBER 9-11, 1993)
     */
    
    void BF_ecb_encrypt(const unsigned char *in, unsigned char *out,
                 BF_KEY *key, int encrypt)
            {
            BF_LONG l,d[2];
    
            n2l(in,l); d[0]=l;
            n2l(in,l); d[1]=l;
            if (encrypt)
                    BF_encrypt(d,key);
            else
                    BF_decrypt(d,key);
            l=d[0]; l2n(l,out);
            l=d[1]; l2n(l,out);
            l=d[0]=d[1]=0;
            }
    

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