diff options
Diffstat (limited to 'crypto/des/des_enc.c')
-rw-r--r-- | crypto/des/des_enc.c | 108 |
1 files changed, 9 insertions, 99 deletions
diff --git a/crypto/des/des_enc.c b/crypto/des/des_enc.c index c0b062da3d89..ed134ace8c32 100644 --- a/crypto/des/des_enc.c +++ b/crypto/des/des_enc.c @@ -1,73 +1,19 @@ -/* crypto/des/des_enc.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. +/* + * Copyright 1995-2016 The OpenSSL Project Authors. 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.] + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html */ +#include <openssl/crypto.h> #include "des_locl.h" #include "spr.h" void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc) { register DES_LONG l, r, t, u; -#ifdef DES_PTR - register const unsigned char *des_SP = (const unsigned char *)DES_SPtrans; -#endif -#ifndef DES_UNROLL - register int i; -#endif register DES_LONG *s; r = data[0]; @@ -78,8 +24,7 @@ void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc) * Things have been modified so that the initial rotate is done outside * the loop. This required the DES_SPtrans values in sp.h to be rotated * 1 bit to the right. One perl script later and things have a 5% speed - * up on a sparc2. Thanks to Richard Outerbridge - * <71755.204@CompuServe.COM> for pointing this out. + * up on a sparc2. Thanks to Richard Outerbridge for pointing this out. */ /* clear the top bits on machines with 8byte longs */ /* shift left by 2 */ @@ -92,7 +37,6 @@ void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc) * loop */ if (enc) { -#ifdef DES_UNROLL D_ENCRYPT(l, r, 0); /* 1 */ D_ENCRYPT(r, l, 2); /* 2 */ D_ENCRYPT(l, r, 4); /* 3 */ @@ -109,14 +53,7 @@ void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc) D_ENCRYPT(r, l, 26); /* 14 */ D_ENCRYPT(l, r, 28); /* 15 */ D_ENCRYPT(r, l, 30); /* 16 */ -#else - for (i = 0; i < 32; i += 4) { - D_ENCRYPT(l, r, i + 0); /* 1 */ - D_ENCRYPT(r, l, i + 2); /* 2 */ - } -#endif } else { -#ifdef DES_UNROLL D_ENCRYPT(l, r, 30); /* 16 */ D_ENCRYPT(r, l, 28); /* 15 */ D_ENCRYPT(l, r, 26); /* 14 */ @@ -133,12 +70,6 @@ void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc) D_ENCRYPT(r, l, 4); /* 3 */ D_ENCRYPT(l, r, 2); /* 2 */ D_ENCRYPT(r, l, 0); /* 1 */ -#else - for (i = 30; i > 0; i -= 4) { - D_ENCRYPT(l, r, i - 0); /* 16 */ - D_ENCRYPT(r, l, i - 2); /* 15 */ - } -#endif } /* rotate and clear the top bits on machines with 8byte longs */ @@ -154,12 +85,6 @@ void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc) void DES_encrypt2(DES_LONG *data, DES_key_schedule *ks, int enc) { register DES_LONG l, r, t, u; -#ifdef DES_PTR - register const unsigned char *des_SP = (const unsigned char *)DES_SPtrans; -#endif -#ifndef DES_UNROLL - register int i; -#endif register DES_LONG *s; r = data[0]; @@ -169,8 +94,7 @@ void DES_encrypt2(DES_LONG *data, DES_key_schedule *ks, int enc) * Things have been modified so that the initial rotate is done outside * the loop. This required the DES_SPtrans values in sp.h to be rotated * 1 bit to the right. One perl script later and things have a 5% speed - * up on a sparc2. Thanks to Richard Outerbridge - * <71755.204@CompuServe.COM> for pointing this out. + * up on a sparc2. Thanks to Richard Outerbridge for pointing this out. */ /* clear the top bits on machines with 8byte longs */ r = ROTATE(r, 29) & 0xffffffffL; @@ -182,7 +106,6 @@ void DES_encrypt2(DES_LONG *data, DES_key_schedule *ks, int enc) * loop */ if (enc) { -#ifdef DES_UNROLL D_ENCRYPT(l, r, 0); /* 1 */ D_ENCRYPT(r, l, 2); /* 2 */ D_ENCRYPT(l, r, 4); /* 3 */ @@ -199,14 +122,7 @@ void DES_encrypt2(DES_LONG *data, DES_key_schedule *ks, int enc) D_ENCRYPT(r, l, 26); /* 14 */ D_ENCRYPT(l, r, 28); /* 15 */ D_ENCRYPT(r, l, 30); /* 16 */ -#else - for (i = 0; i < 32; i += 4) { - D_ENCRYPT(l, r, i + 0); /* 1 */ - D_ENCRYPT(r, l, i + 2); /* 2 */ - } -#endif } else { -#ifdef DES_UNROLL D_ENCRYPT(l, r, 30); /* 16 */ D_ENCRYPT(r, l, 28); /* 15 */ D_ENCRYPT(l, r, 26); /* 14 */ @@ -223,12 +139,6 @@ void DES_encrypt2(DES_LONG *data, DES_key_schedule *ks, int enc) D_ENCRYPT(r, l, 4); /* 3 */ D_ENCRYPT(l, r, 2); /* 2 */ D_ENCRYPT(r, l, 0); /* 1 */ -#else - for (i = 30; i > 0; i -= 4) { - D_ENCRYPT(l, r, i - 0); /* 16 */ - D_ENCRYPT(r, l, i - 2); /* 15 */ - } -#endif } /* rotate and clear the top bits on machines with 8byte longs */ data[0] = ROTATE(l, 3) & 0xffffffffL; |