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/* $OpenBSD: set_key.c,v 1.19 2014/10/28 07:35:58 jsg Exp $ */ |
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
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* All rights reserved. |
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* |
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* This package is an SSL implementation written |
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* by Eric Young (eay@cryptsoft.com). |
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* The implementation was written so as to conform with Netscapes SSL. |
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* |
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* This library is free for commercial and non-commercial use as long as |
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* the following conditions are aheared to. The following conditions |
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* apply to all code found in this distribution, be it the RC4, RSA, |
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation |
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* included with this distribution is covered by the same copyright terms |
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* except that the holder is Tim Hudson (tjh@cryptsoft.com). |
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* |
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* Copyright remains Eric Young's, and as such any Copyright notices in |
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* the code are not to be removed. |
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* If this package is used in a product, Eric Young should be given attribution |
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* as the author of the parts of the library used. |
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* This can be in the form of a textual message at program startup or |
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* in documentation (online or textual) provided with the package. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. All advertising materials mentioning features or use of this software |
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* must display the following acknowledgement: |
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* "This product includes cryptographic software written by |
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* Eric Young (eay@cryptsoft.com)" |
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* The word 'cryptographic' can be left out if the rouines from the library |
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* being used are not cryptographic related :-). |
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* 4. If you include any Windows specific code (or a derivative thereof) from |
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* the apps directory (application code) you must include an acknowledgement: |
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
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* |
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* The licence and distribution terms for any publically available version or |
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* derivative of this code cannot be changed. i.e. this code cannot simply be |
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* copied and put under another distribution licence |
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* [including the GNU Public Licence.] |
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*/ |
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/* set_key.c v 1.4 eay 24/9/91 |
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* 1.4 Speed up by 400% :-) |
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* 1.3 added register declarations. |
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* 1.2 unrolled make_key_sched a bit more |
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* 1.1 added norm_expand_bits |
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* 1.0 First working version |
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*/ |
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#include <openssl/crypto.h> |
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#include "des_locl.h" |
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int DES_check_key = 0; /* defaults to false */ |
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static const unsigned char odd_parity[256]={ |
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1, 1, 2, 2, 4, 4, 7, 7, 8, 8, 11, 11, 13, 13, 14, 14, |
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16, 16, 19, 19, 21, 21, 22, 22, 25, 25, 26, 26, 28, 28, 31, 31, |
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32, 32, 35, 35, 37, 37, 38, 38, 41, 41, 42, 42, 44, 44, 47, 47, |
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49, 49, 50, 50, 52, 52, 55, 55, 56, 56, 59, 59, 61, 61, 62, 62, |
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64, 64, 67, 67, 69, 69, 70, 70, 73, 73, 74, 74, 76, 76, 79, 79, |
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81, 81, 82, 82, 84, 84, 87, 87, 88, 88, 91, 91, 93, 93, 94, 94, |
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97, 97, 98, 98,100,100,103,103,104,104,107,107,109,109,110,110, |
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112,112,115,115,117,117,118,118,121,121,122,122,124,124,127,127, |
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128,128,131,131,133,133,134,134,137,137,138,138,140,140,143,143, |
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145,145,146,146,148,148,151,151,152,152,155,155,157,157,158,158, |
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161,161,162,162,164,164,167,167,168,168,171,171,173,173,174,174, |
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176,176,179,179,181,181,182,182,185,185,186,186,188,188,191,191, |
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193,193,194,194,196,196,199,199,200,200,203,203,205,205,206,206, |
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208,208,211,211,213,213,214,214,217,217,218,218,220,220,223,223, |
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224,224,227,227,229,229,230,230,233,233,234,234,236,236,239,239, |
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241,241,242,242,244,244,247,247,248,248,251,251,253,253,254,254}; |
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void DES_set_odd_parity(DES_cblock *key) |
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{ |
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unsigned int i; |
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for (i=0; i<DES_KEY_SZ; i++) |
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(*key)[i]=odd_parity[(*key)[i]]; |
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} |
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int DES_check_key_parity(const_DES_cblock *key) |
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{ |
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unsigned int i; |
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✓✓ |
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for (i=0; i<DES_KEY_SZ; i++) |
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{ |
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✗✓ |
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if ((*key)[i] != odd_parity[(*key)[i]]) |
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return(0); |
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} |
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return(1); |
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} |
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/* Weak and semi week keys as take from |
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* %A D.W. Davies |
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* %A W.L. Price |
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* %T Security for Computer Networks |
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* %I John Wiley & Sons |
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* %D 1984 |
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* Many thanks to smb@ulysses.att.com (Steven Bellovin) for the reference |
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* (and actual cblock values). |
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*/ |
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#define NUM_WEAK_KEY 16 |
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static const DES_cblock weak_keys[NUM_WEAK_KEY]={ |
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/* weak keys */ |
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{0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01}, |
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{0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE}, |
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{0x1F,0x1F,0x1F,0x1F,0x0E,0x0E,0x0E,0x0E}, |
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{0xE0,0xE0,0xE0,0xE0,0xF1,0xF1,0xF1,0xF1}, |
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/* semi-weak keys */ |
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{0x01,0xFE,0x01,0xFE,0x01,0xFE,0x01,0xFE}, |
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{0xFE,0x01,0xFE,0x01,0xFE,0x01,0xFE,0x01}, |
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{0x1F,0xE0,0x1F,0xE0,0x0E,0xF1,0x0E,0xF1}, |
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{0xE0,0x1F,0xE0,0x1F,0xF1,0x0E,0xF1,0x0E}, |
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{0x01,0xE0,0x01,0xE0,0x01,0xF1,0x01,0xF1}, |
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{0xE0,0x01,0xE0,0x01,0xF1,0x01,0xF1,0x01}, |
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{0x1F,0xFE,0x1F,0xFE,0x0E,0xFE,0x0E,0xFE}, |
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{0xFE,0x1F,0xFE,0x1F,0xFE,0x0E,0xFE,0x0E}, |
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{0x01,0x1F,0x01,0x1F,0x01,0x0E,0x01,0x0E}, |
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{0x1F,0x01,0x1F,0x01,0x0E,0x01,0x0E,0x01}, |
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{0xE0,0xFE,0xE0,0xFE,0xF1,0xFE,0xF1,0xFE}, |
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{0xFE,0xE0,0xFE,0xE0,0xFE,0xF1,0xFE,0xF1}}; |
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int |
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DES_is_weak_key(const_DES_cblock *key) |
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{ |
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unsigned int i; |
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✓✓ |
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for (i = 0; i < NUM_WEAK_KEY; i++) |
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✗✓ |
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if (memcmp(weak_keys[i], key, sizeof(DES_cblock)) == 0) |
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return 1; |
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return 0; |
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} |
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/* NOW DEFINED IN des_local.h |
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* See ecb_encrypt.c for a pseudo description of these macros. |
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* #define PERM_OP(a,b,t,n,m) ((t)=((((a)>>(n))^(b))&(m)),\ |
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* (b)^=(t),\ |
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* (a)=((a)^((t)<<(n)))) |
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*/ |
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#define HPERM_OP(a,t,n,m) ((t)=((((a)<<(16-(n)))^(a))&(m)),\ |
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(a)=(a)^(t)^(t>>(16-(n)))) |
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static const DES_LONG des_skb[8][64]={ |
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{ |
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/* for C bits (numbered as per FIPS 46) 1 2 3 4 5 6 */ |
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0x00000000L,0x00000010L,0x20000000L,0x20000010L, |
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0x00010000L,0x00010010L,0x20010000L,0x20010010L, |
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0x00000800L,0x00000810L,0x20000800L,0x20000810L, |
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0x00010800L,0x00010810L,0x20010800L,0x20010810L, |
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0x00000020L,0x00000030L,0x20000020L,0x20000030L, |
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0x00010020L,0x00010030L,0x20010020L,0x20010030L, |
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0x00000820L,0x00000830L,0x20000820L,0x20000830L, |
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0x00010820L,0x00010830L,0x20010820L,0x20010830L, |
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0x00080000L,0x00080010L,0x20080000L,0x20080010L, |
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0x00090000L,0x00090010L,0x20090000L,0x20090010L, |
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0x00080800L,0x00080810L,0x20080800L,0x20080810L, |
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0x00090800L,0x00090810L,0x20090800L,0x20090810L, |
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0x00080020L,0x00080030L,0x20080020L,0x20080030L, |
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0x00090020L,0x00090030L,0x20090020L,0x20090030L, |
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0x00080820L,0x00080830L,0x20080820L,0x20080830L, |
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0x00090820L,0x00090830L,0x20090820L,0x20090830L, |
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},{ |
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/* for C bits (numbered as per FIPS 46) 7 8 10 11 12 13 */ |
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0x00000000L,0x02000000L,0x00002000L,0x02002000L, |
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0x00200000L,0x02200000L,0x00202000L,0x02202000L, |
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0x00000004L,0x02000004L,0x00002004L,0x02002004L, |
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0x00200004L,0x02200004L,0x00202004L,0x02202004L, |
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0x00000400L,0x02000400L,0x00002400L,0x02002400L, |
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0x00200400L,0x02200400L,0x00202400L,0x02202400L, |
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0x00000404L,0x02000404L,0x00002404L,0x02002404L, |
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0x00200404L,0x02200404L,0x00202404L,0x02202404L, |
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0x10000000L,0x12000000L,0x10002000L,0x12002000L, |
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0x10200000L,0x12200000L,0x10202000L,0x12202000L, |
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0x10000004L,0x12000004L,0x10002004L,0x12002004L, |
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0x10200004L,0x12200004L,0x10202004L,0x12202004L, |
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0x10000400L,0x12000400L,0x10002400L,0x12002400L, |
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0x10200400L,0x12200400L,0x10202400L,0x12202400L, |
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0x10000404L,0x12000404L,0x10002404L,0x12002404L, |
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0x10200404L,0x12200404L,0x10202404L,0x12202404L, |
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},{ |
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/* for C bits (numbered as per FIPS 46) 14 15 16 17 19 20 */ |
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0x00000000L,0x00000001L,0x00040000L,0x00040001L, |
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0x01000000L,0x01000001L,0x01040000L,0x01040001L, |
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0x00000002L,0x00000003L,0x00040002L,0x00040003L, |
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0x01000002L,0x01000003L,0x01040002L,0x01040003L, |
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0x00000200L,0x00000201L,0x00040200L,0x00040201L, |
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0x01000200L,0x01000201L,0x01040200L,0x01040201L, |
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0x00000202L,0x00000203L,0x00040202L,0x00040203L, |
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0x01000202L,0x01000203L,0x01040202L,0x01040203L, |
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0x08000000L,0x08000001L,0x08040000L,0x08040001L, |
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0x09000000L,0x09000001L,0x09040000L,0x09040001L, |
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0x08000002L,0x08000003L,0x08040002L,0x08040003L, |
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0x09000002L,0x09000003L,0x09040002L,0x09040003L, |
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0x08000200L,0x08000201L,0x08040200L,0x08040201L, |
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0x09000200L,0x09000201L,0x09040200L,0x09040201L, |
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0x08000202L,0x08000203L,0x08040202L,0x08040203L, |
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0x09000202L,0x09000203L,0x09040202L,0x09040203L, |
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},{ |
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/* for C bits (numbered as per FIPS 46) 21 23 24 26 27 28 */ |
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0x00000000L,0x00100000L,0x00000100L,0x00100100L, |
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0x00000008L,0x00100008L,0x00000108L,0x00100108L, |
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0x00001000L,0x00101000L,0x00001100L,0x00101100L, |
220 |
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0x00001008L,0x00101008L,0x00001108L,0x00101108L, |
221 |
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0x04000000L,0x04100000L,0x04000100L,0x04100100L, |
222 |
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0x04000008L,0x04100008L,0x04000108L,0x04100108L, |
223 |
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0x04001000L,0x04101000L,0x04001100L,0x04101100L, |
224 |
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0x04001008L,0x04101008L,0x04001108L,0x04101108L, |
225 |
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0x00020000L,0x00120000L,0x00020100L,0x00120100L, |
226 |
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0x00020008L,0x00120008L,0x00020108L,0x00120108L, |
227 |
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0x00021000L,0x00121000L,0x00021100L,0x00121100L, |
228 |
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0x00021008L,0x00121008L,0x00021108L,0x00121108L, |
229 |
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0x04020000L,0x04120000L,0x04020100L,0x04120100L, |
230 |
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0x04020008L,0x04120008L,0x04020108L,0x04120108L, |
231 |
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0x04021000L,0x04121000L,0x04021100L,0x04121100L, |
232 |
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0x04021008L,0x04121008L,0x04021108L,0x04121108L, |
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},{ |
234 |
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/* for D bits (numbered as per FIPS 46) 1 2 3 4 5 6 */ |
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0x00000000L,0x10000000L,0x00010000L,0x10010000L, |
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0x00000004L,0x10000004L,0x00010004L,0x10010004L, |
237 |
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0x20000000L,0x30000000L,0x20010000L,0x30010000L, |
238 |
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0x20000004L,0x30000004L,0x20010004L,0x30010004L, |
239 |
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0x00100000L,0x10100000L,0x00110000L,0x10110000L, |
240 |
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0x00100004L,0x10100004L,0x00110004L,0x10110004L, |
241 |
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0x20100000L,0x30100000L,0x20110000L,0x30110000L, |
242 |
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0x20100004L,0x30100004L,0x20110004L,0x30110004L, |
243 |
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0x00001000L,0x10001000L,0x00011000L,0x10011000L, |
244 |
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0x00001004L,0x10001004L,0x00011004L,0x10011004L, |
245 |
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0x20001000L,0x30001000L,0x20011000L,0x30011000L, |
246 |
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0x20001004L,0x30001004L,0x20011004L,0x30011004L, |
247 |
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0x00101000L,0x10101000L,0x00111000L,0x10111000L, |
248 |
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0x00101004L,0x10101004L,0x00111004L,0x10111004L, |
249 |
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0x20101000L,0x30101000L,0x20111000L,0x30111000L, |
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0x20101004L,0x30101004L,0x20111004L,0x30111004L, |
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},{ |
252 |
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/* for D bits (numbered as per FIPS 46) 8 9 11 12 13 14 */ |
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0x00000000L,0x08000000L,0x00000008L,0x08000008L, |
254 |
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0x00000400L,0x08000400L,0x00000408L,0x08000408L, |
255 |
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0x00020000L,0x08020000L,0x00020008L,0x08020008L, |
256 |
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0x00020400L,0x08020400L,0x00020408L,0x08020408L, |
257 |
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0x00000001L,0x08000001L,0x00000009L,0x08000009L, |
258 |
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0x00000401L,0x08000401L,0x00000409L,0x08000409L, |
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0x00020001L,0x08020001L,0x00020009L,0x08020009L, |
260 |
|
|
0x00020401L,0x08020401L,0x00020409L,0x08020409L, |
261 |
|
|
0x02000000L,0x0A000000L,0x02000008L,0x0A000008L, |
262 |
|
|
0x02000400L,0x0A000400L,0x02000408L,0x0A000408L, |
263 |
|
|
0x02020000L,0x0A020000L,0x02020008L,0x0A020008L, |
264 |
|
|
0x02020400L,0x0A020400L,0x02020408L,0x0A020408L, |
265 |
|
|
0x02000001L,0x0A000001L,0x02000009L,0x0A000009L, |
266 |
|
|
0x02000401L,0x0A000401L,0x02000409L,0x0A000409L, |
267 |
|
|
0x02020001L,0x0A020001L,0x02020009L,0x0A020009L, |
268 |
|
|
0x02020401L,0x0A020401L,0x02020409L,0x0A020409L, |
269 |
|
|
},{ |
270 |
|
|
/* for D bits (numbered as per FIPS 46) 16 17 18 19 20 21 */ |
271 |
|
|
0x00000000L,0x00000100L,0x00080000L,0x00080100L, |
272 |
|
|
0x01000000L,0x01000100L,0x01080000L,0x01080100L, |
273 |
|
|
0x00000010L,0x00000110L,0x00080010L,0x00080110L, |
274 |
|
|
0x01000010L,0x01000110L,0x01080010L,0x01080110L, |
275 |
|
|
0x00200000L,0x00200100L,0x00280000L,0x00280100L, |
276 |
|
|
0x01200000L,0x01200100L,0x01280000L,0x01280100L, |
277 |
|
|
0x00200010L,0x00200110L,0x00280010L,0x00280110L, |
278 |
|
|
0x01200010L,0x01200110L,0x01280010L,0x01280110L, |
279 |
|
|
0x00000200L,0x00000300L,0x00080200L,0x00080300L, |
280 |
|
|
0x01000200L,0x01000300L,0x01080200L,0x01080300L, |
281 |
|
|
0x00000210L,0x00000310L,0x00080210L,0x00080310L, |
282 |
|
|
0x01000210L,0x01000310L,0x01080210L,0x01080310L, |
283 |
|
|
0x00200200L,0x00200300L,0x00280200L,0x00280300L, |
284 |
|
|
0x01200200L,0x01200300L,0x01280200L,0x01280300L, |
285 |
|
|
0x00200210L,0x00200310L,0x00280210L,0x00280310L, |
286 |
|
|
0x01200210L,0x01200310L,0x01280210L,0x01280310L, |
287 |
|
|
},{ |
288 |
|
|
/* for D bits (numbered as per FIPS 46) 22 23 24 25 27 28 */ |
289 |
|
|
0x00000000L,0x04000000L,0x00040000L,0x04040000L, |
290 |
|
|
0x00000002L,0x04000002L,0x00040002L,0x04040002L, |
291 |
|
|
0x00002000L,0x04002000L,0x00042000L,0x04042000L, |
292 |
|
|
0x00002002L,0x04002002L,0x00042002L,0x04042002L, |
293 |
|
|
0x00000020L,0x04000020L,0x00040020L,0x04040020L, |
294 |
|
|
0x00000022L,0x04000022L,0x00040022L,0x04040022L, |
295 |
|
|
0x00002020L,0x04002020L,0x00042020L,0x04042020L, |
296 |
|
|
0x00002022L,0x04002022L,0x00042022L,0x04042022L, |
297 |
|
|
0x00000800L,0x04000800L,0x00040800L,0x04040800L, |
298 |
|
|
0x00000802L,0x04000802L,0x00040802L,0x04040802L, |
299 |
|
|
0x00002800L,0x04002800L,0x00042800L,0x04042800L, |
300 |
|
|
0x00002802L,0x04002802L,0x00042802L,0x04042802L, |
301 |
|
|
0x00000820L,0x04000820L,0x00040820L,0x04040820L, |
302 |
|
|
0x00000822L,0x04000822L,0x00040822L,0x04040822L, |
303 |
|
|
0x00002820L,0x04002820L,0x00042820L,0x04042820L, |
304 |
|
|
0x00002822L,0x04002822L,0x00042822L,0x04042822L, |
305 |
|
|
}}; |
306 |
|
|
|
307 |
|
|
int DES_set_key(const_DES_cblock *key, DES_key_schedule *schedule) |
308 |
|
|
{ |
309 |
|
|
if (DES_check_key) |
310 |
|
|
{ |
311 |
|
|
return DES_set_key_checked(key, schedule); |
312 |
|
|
} |
313 |
|
|
else |
314 |
|
|
{ |
315 |
|
|
DES_set_key_unchecked(key, schedule); |
316 |
|
|
return 0; |
317 |
|
|
} |
318 |
|
|
} |
319 |
|
|
|
320 |
|
|
/* return 0 if key parity is odd (correct), |
321 |
|
|
* return -1 if key parity error, |
322 |
|
|
* return -2 if illegal weak key. |
323 |
|
|
*/ |
324 |
|
|
int DES_set_key_checked(const_DES_cblock *key, DES_key_schedule *schedule) |
325 |
|
20 |
{ |
326 |
✗✓ |
20 |
if (!DES_check_key_parity(key)) |
327 |
|
|
return(-1); |
328 |
✗✓ |
20 |
if (DES_is_weak_key(key)) |
329 |
|
|
return(-2); |
330 |
|
20 |
DES_set_key_unchecked(key, schedule); |
331 |
|
20 |
return 0; |
332 |
|
|
} |
333 |
|
|
|
334 |
|
|
void DES_set_key_unchecked(const_DES_cblock *key, DES_key_schedule *schedule) |
335 |
|
174 |
{ |
336 |
|
|
static const int shifts2[16]={0,0,1,1,1,1,1,1,0,1,1,1,1,1,1,0}; |
337 |
|
|
DES_LONG c,d,t,s,t2; |
338 |
|
|
const unsigned char *in; |
339 |
|
|
DES_LONG *k; |
340 |
|
|
int i; |
341 |
|
|
|
342 |
|
174 |
k = &schedule->ks->deslong[0]; |
343 |
|
174 |
in = &(*key)[0]; |
344 |
|
|
|
345 |
|
174 |
c2l(in,c); |
346 |
|
174 |
c2l(in,d); |
347 |
|
|
|
348 |
|
|
/* do PC1 in 47 simple operations :-) |
349 |
|
|
* Thanks to John Fletcher (john_fletcher@lccmail.ocf.llnl.gov) |
350 |
|
|
* for the inspiration. :-) */ |
351 |
|
174 |
PERM_OP (d,c,t,4,0x0f0f0f0fL); |
352 |
|
174 |
HPERM_OP(c,t,-2,0xcccc0000L); |
353 |
|
174 |
HPERM_OP(d,t,-2,0xcccc0000L); |
354 |
|
174 |
PERM_OP (d,c,t,1,0x55555555L); |
355 |
|
174 |
PERM_OP (c,d,t,8,0x00ff00ffL); |
356 |
|
174 |
PERM_OP (d,c,t,1,0x55555555L); |
357 |
|
174 |
d= (((d&0x000000ffL)<<16L)| (d&0x0000ff00L) | |
358 |
|
|
((d&0x00ff0000L)>>16L)|((c&0xf0000000L)>>4L)); |
359 |
|
174 |
c&=0x0fffffffL; |
360 |
|
|
|
361 |
✓✓ |
2958 |
for (i=0; i<ITERATIONS; i++) |
362 |
|
|
{ |
363 |
✓✓ |
2784 |
if (shifts2[i]) |
364 |
|
2088 |
{ c=((c>>2L)|(c<<26L)); d=((d>>2L)|(d<<26L)); } |
365 |
|
|
else |
366 |
|
696 |
{ c=((c>>1L)|(c<<27L)); d=((d>>1L)|(d<<27L)); } |
367 |
|
2784 |
c&=0x0fffffffL; |
368 |
|
2784 |
d&=0x0fffffffL; |
369 |
|
|
/* could be a few less shifts but I am to lazy at this |
370 |
|
|
* point in time to investigate */ |
371 |
|
2784 |
s= des_skb[0][ (c )&0x3f ]| |
372 |
|
|
des_skb[1][((c>> 6L)&0x03)|((c>> 7L)&0x3c)]| |
373 |
|
|
des_skb[2][((c>>13L)&0x0f)|((c>>14L)&0x30)]| |
374 |
|
|
des_skb[3][((c>>20L)&0x01)|((c>>21L)&0x06) | |
375 |
|
|
((c>>22L)&0x38)]; |
376 |
|
2784 |
t= des_skb[4][ (d )&0x3f ]| |
377 |
|
|
des_skb[5][((d>> 7L)&0x03)|((d>> 8L)&0x3c)]| |
378 |
|
|
des_skb[6][ (d>>15L)&0x3f ]| |
379 |
|
|
des_skb[7][((d>>21L)&0x0f)|((d>>22L)&0x30)]; |
380 |
|
|
|
381 |
|
|
/* table contained 0213 4657 */ |
382 |
|
2784 |
t2=((t<<16L)|(s&0x0000ffffL))&0xffffffffL; |
383 |
|
2784 |
*(k++)=ROTATE(t2,30)&0xffffffffL; |
384 |
|
|
|
385 |
|
2784 |
t2=((s>>16L)|(t&0xffff0000L)); |
386 |
|
2784 |
*(k++)=ROTATE(t2,26)&0xffffffffL; |
387 |
|
|
} |
388 |
|
174 |
} |
389 |
|
|
|
390 |
|
|
int DES_key_sched(const_DES_cblock *key, DES_key_schedule *schedule) |
391 |
|
|
{ |
392 |
|
|
return(DES_set_key(key,schedule)); |
393 |
|
|
} |
394 |
|
|
/* |
395 |
|
|
#undef des_fixup_key_parity |
396 |
|
|
void des_fixup_key_parity(des_cblock *key) |
397 |
|
|
{ |
398 |
|
|
des_set_odd_parity(key); |
399 |
|
|
} |
400 |
|
|
*/ |