GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcrypto/des/str2key.c Lines: 0 38 0.0 %
Date: 2017-11-13 Branches: 0 10 0.0 %

Line Branch Exec Source
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/* $OpenBSD: str2key.c,v 1.10 2015/09/10 15:56:25 jsing 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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#include <openssl/crypto.h>
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#include "des_locl.h"
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void DES_string_to_key(const char *str, DES_cblock *key)
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	{
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	DES_key_schedule ks;
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	int i,length;
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	unsigned char j;
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	memset(key,0,8);
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	length=strlen(str);
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#ifdef OLD_STR_TO_KEY
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	for (i=0; i<length; i++)
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		(*key)[i%8]^=(str[i]<<1);
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#else /* MIT COMPATIBLE */
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	for (i=0; i<length; i++)
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		{
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		j=str[i];
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		if ((i%16) < 8)
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			(*key)[i%8]^=(j<<1);
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		else
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			{
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			/* Reverse the bit order 05/05/92 eay */
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			j=((j<<4)&0xf0)|((j>>4)&0x0f);
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			j=((j<<2)&0xcc)|((j>>2)&0x33);
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			j=((j<<1)&0xaa)|((j>>1)&0x55);
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			(*key)[7-(i%8)]^=j;
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			}
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		}
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#endif
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	DES_set_odd_parity(key);
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#ifdef EXPERIMENTAL_STR_TO_STRONG_KEY
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	if(DES_is_weak_key(key))
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	    (*key)[7] ^= 0xF0;
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	DES_set_key(key,&ks);
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#else
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	DES_set_key_unchecked(key,&ks);
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#endif
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	DES_cbc_cksum((const unsigned char*)str,key,length,&ks,key);
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	explicit_bzero(&ks,sizeof(ks));
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	DES_set_odd_parity(key);
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	}
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void DES_string_to_2keys(const char *str, DES_cblock *key1, DES_cblock *key2)
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	{
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	DES_key_schedule ks;
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	int i,length;
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	unsigned char j;
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	memset(key1,0,8);
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	memset(key2,0,8);
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	length=strlen(str);
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#ifdef OLD_STR_TO_KEY
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	if (length <= 8)
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		{
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		for (i=0; i<length; i++)
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			{
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			(*key2)[i]=(*key1)[i]=(str[i]<<1);
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			}
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		}
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	else
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		{
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		for (i=0; i<length; i++)
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			{
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			if ((i/8)&1)
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				(*key2)[i%8]^=(str[i]<<1);
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			else
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				(*key1)[i%8]^=(str[i]<<1);
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			}
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		}
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#else /* MIT COMPATIBLE */
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	for (i=0; i<length; i++)
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		{
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		j=str[i];
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		if ((i%32) < 16)
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			{
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			if ((i%16) < 8)
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				(*key1)[i%8]^=(j<<1);
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			else
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				(*key2)[i%8]^=(j<<1);
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			}
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		else
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			{
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			j=((j<<4)&0xf0)|((j>>4)&0x0f);
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			j=((j<<2)&0xcc)|((j>>2)&0x33);
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			j=((j<<1)&0xaa)|((j>>1)&0x55);
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			if ((i%16) < 8)
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				(*key1)[7-(i%8)]^=j;
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			else
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				(*key2)[7-(i%8)]^=j;
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			}
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		}
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	if (length <= 8) memcpy(key2,key1,8);
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#endif
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	DES_set_odd_parity(key1);
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	DES_set_odd_parity(key2);
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#ifdef EXPERIMENTAL_STR_TO_STRONG_KEY
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	if(DES_is_weak_key(key1))
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	    (*key1)[7] ^= 0xF0;
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	DES_set_key(key1,&ks);
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#else
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	DES_set_key_unchecked(key1,&ks);
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#endif
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	DES_cbc_cksum((const unsigned char*)str,key1,length,&ks,key1);
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#ifdef EXPERIMENTAL_STR_TO_STRONG_KEY
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	if(DES_is_weak_key(key2))
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	    (*key2)[7] ^= 0xF0;
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	DES_set_key(key2,&ks);
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#else
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	DES_set_key_unchecked(key2,&ks);
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#endif
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	DES_cbc_cksum((const unsigned char*)str,key2,length,&ks,key2);
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	explicit_bzero(&ks,sizeof(ks));
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	DES_set_odd_parity(key1);
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	DES_set_odd_parity(key2);
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	}