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Diffstat (limited to 'secure/lib/libdes/str2key.c')
| -rw-r--r-- | secure/lib/libdes/str2key.c | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/secure/lib/libdes/str2key.c b/secure/lib/libdes/str2key.c deleted file mode 100644 index af889d7..0000000 --- a/secure/lib/libdes/str2key.c +++ /dev/null @@ -1,160 +0,0 @@ -/* crypto/des/str2key.c */ -/* Copyright (C) 1995-1996 Eric Young (eay@mincom.oz.au) - * All rights reserved. - * - * This file is part of an SSL implementation written - * by Eric Young (eay@mincom.oz.au). - * The implementation was written so as to conform with Netscapes SSL - * specification. This library and applications are - * FREE FOR COMMERCIAL AND NON-COMMERCIAL USE - * as long as the following conditions are aheared to. - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. If this code is used in a product, - * Eric Young should be given attribution as the author of the parts 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 software developed by Eric Young (eay@mincom.oz.au) - * - * 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" - -extern int des_check_key; - -void des_string_to_key(str, key) -char *str; -des_cblock (*key); - { - des_key_schedule ks; - int i,length; - register unsigned char j; - - memset(key,0,8); - length=strlen(str); -#ifdef OLD_STR_TO_KEY - for (i=0; i<length; i++) - (*key)[i%8]^=(str[i]<<1); -#else /* MIT COMPATIBLE */ - for (i=0; i<length; i++) - { - j=str[i]; - if ((i%16) < 8) - (*key)[i%8]^=(j<<1); - else - { - /* Reverse the bit order 05/05/92 eay */ - j=((j<<4)&0xf0)|((j>>4)&0x0f); - j=((j<<2)&0xcc)|((j>>2)&0x33); - j=((j<<1)&0xaa)|((j>>1)&0x55); - (*key)[7-(i%8)]^=j; - } - } -#endif - des_set_odd_parity((des_cblock *)key); - i=des_check_key; - des_check_key=0; - des_set_key((des_cblock *)key,ks); - des_check_key=i; - des_cbc_cksum((des_cblock *)str,(des_cblock *)key,(long)length,ks, - (des_cblock *)key); - memset(ks,0,sizeof(ks)); - des_set_odd_parity((des_cblock *)key); - } - -void des_string_to_2keys(str, key1, key2) -char *str; -des_cblock (*key1); -des_cblock (*key2); - { - des_key_schedule ks; - int i,length; - register unsigned char j; - - memset(key1,0,8); - memset(key2,0,8); - length=strlen(str); -#ifdef OLD_STR_TO_KEY - if (length <= 8) - { - for (i=0; i<length; i++) - { - (*key2)[i]=(*key1)[i]=(str[i]<<1); - } - } - else - { - for (i=0; i<length; i++) - { - if ((i/8)&1) - (*key2)[i%8]^=(str[i]<<1); - else - (*key1)[i%8]^=(str[i]<<1); - } - } -#else /* MIT COMPATIBLE */ - for (i=0; i<length; i++) - { - j=str[i]; - if ((i%32) < 16) - { - if ((i%16) < 8) - (*key1)[i%8]^=(j<<1); - else - (*key2)[i%8]^=(j<<1); - } - else - { - j=((j<<4)&0xf0)|((j>>4)&0x0f); - j=((j<<2)&0xcc)|((j>>2)&0x33); - j=((j<<1)&0xaa)|((j>>1)&0x55); - if ((i%16) < 8) - (*key1)[7-(i%8)]^=j; - else - (*key2)[7-(i%8)]^=j; - } - } - if (length <= 8) memcpy(key2,key1,8); -#endif - des_set_odd_parity((des_cblock *)key1); - des_set_odd_parity((des_cblock *)key2); - i=des_check_key; - des_check_key=0; - des_set_key((des_cblock *)key1,ks); - des_cbc_cksum((des_cblock *)str,(des_cblock *)key1,(long)length,ks, - (des_cblock *)key1); - des_set_key((des_cblock *)key2,ks); - des_cbc_cksum((des_cblock *)str,(des_cblock *)key2,(long)length,ks, - (des_cblock *)key2); - des_check_key=i; - memset(ks,0,sizeof(ks)); - des_set_odd_parity(key1); - des_set_odd_parity(key2); - } |
