Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/des/ncbc_enc.c

-/* crypto/des/ncbc_enc.c */
-/*
- * #included by:
- *    cbc_enc.c  (DES_cbc_encrypt)
- *    des_enc.c  (DES_ncbc_encrypt)
- */
-/* 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 "des_locl.h"
-
-#ifdef CBC_ENC_C__DONT_UPDATE_IV
-void DES_cbc_encrypt(const unsigned char *in, unsigned char *out, long length,
-                     DES_key_schedule *_schedule, DES_cblock *ivec, int enc)
-#else
-void DES_ncbc_encrypt(const unsigned char *in, unsigned char *out, long length,
-                     DES_key_schedule *_schedule, DES_cblock *ivec, int enc)
-#endif
-        {
-        register DES_LONG tin0,tin1;
-        register DES_LONG tout0,tout1,xor0,xor1;
-        register long l=length;
-        DES_LONG tin[2];
-        unsigned char *iv;
-
-        iv = &(*ivec)[0];
-
-        if (enc)
-                {
-                c2l(iv,tout0);
-                c2l(iv,tout1);
-                for (l-=8; l>=0; l-=8)
-                        {
-                        c2l(in,tin0);
-                        c2l(in,tin1);
-                        tin0^=tout0; tin[0]=tin0;
-                        tin1^=tout1; tin[1]=tin1;
-                        DES_encrypt1((DES_LONG *)tin,_schedule,DES_ENCRYPT);
-                        tout0=tin[0]; l2c(tout0,out);
-                        tout1=tin[1]; l2c(tout1,out);
-                        }
-                if (l != -8)
-                        {
-                        c2ln(in,tin0,tin1,l+8);
-                        tin0^=tout0; tin[0]=tin0;
-                        tin1^=tout1; tin[1]=tin1;
-                        DES_encrypt1((DES_LONG *)tin,_schedule,DES_ENCRYPT);
-                        tout0=tin[0]; l2c(tout0,out);
-                        tout1=tin[1]; l2c(tout1,out);
-                        }
-#ifndef CBC_ENC_C__DONT_UPDATE_IV
-                iv = &(*ivec)[0];
-                l2c(tout0,iv);
-                l2c(tout1,iv);
-#endif
-                }
-        else
-                {
-                c2l(iv,xor0);
-                c2l(iv,xor1);
-                for (l-=8; l>=0; l-=8)
-                        {
-                        c2l(in,tin0); tin[0]=tin0;
-                        c2l(in,tin1); tin[1]=tin1;
-                        DES_encrypt1((DES_LONG *)tin,_schedule,DES_DECRYPT);
-                        tout0=tin[0]^xor0;
-                        tout1=tin[1]^xor1;
-                        l2c(tout0,out);
-                        l2c(tout1,out);
-                        xor0=tin0;
-                        xor1=tin1;
-                        }
-                if (l != -8)
-                        {
-                        c2l(in,tin0); tin[0]=tin0;
-                        c2l(in,tin1); tin[1]=tin1;
-                        DES_encrypt1((DES_LONG *)tin,_schedule,DES_DECRYPT);
-                        tout0=tin[0]^xor0;
-                        tout1=tin[1]^xor1;
-                        l2cn(tout0,tout1,out,l+8);
-#ifndef CBC_ENC_C__DONT_UPDATE_IV
-                        xor0=tin0;
-                        xor1=tin1;
-#endif
-                        }
-#ifndef CBC_ENC_C__DONT_UPDATE_IV 
-                iv = &(*ivec)[0];
-                l2c(xor0,iv);
-                l2c(xor1,iv);
-#endif
-                }
-        tin0=tin1=tout0=tout1=xor0=xor1=0;
-        tin[0]=tin[1]=0;
-        }