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curl/lib/curl_des.c
Daniel Stenberg 709cf76f6b openssl: remove all uses of USE_SSLEAY
SSLeay was the name of the library that was subsequently turned into
OpenSSL many moons ago (1999). curl does not work with the old SSLeay
library since years. This is now reflected by only using USE_OPENSSL in
code that depends on OpenSSL.
2015-03-05 10:57:52 +01:00

64 lines
2.0 KiB
C

/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2015, Steve Holme, <steve_holme@hotmail.com>.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(USE_NTLM) && (!defined(USE_OPENSSL) || defined(HAVE_BORINGSSL))
#include "curl_des.h"
/*
* Curl_des_set_odd_parity()
*
* This is used to apply odd parity to the given byte array. It is typically
* used by when a cryptography engines doesn't have it's own version.
*
* The function is a port of the Java based oddParity() function over at:
*
* http://davenport.sourceforge.net/ntlm.html
*
* Parameters:
*
* bytes [in/out] - The data whose parity bits are to be adjusted for
* odd parity.
* len [out] - The length of the data.
*/
void Curl_des_set_odd_parity(unsigned char *bytes, size_t len)
{
size_t i;
for(i = 0; i < len; i++) {
unsigned char b = bytes[i];
bool needs_parity = (((b >> 7) ^ (b >> 6) ^ (b >> 5) ^
(b >> 4) ^ (b >> 3) ^ (b >> 2) ^
(b >> 1)) & 0x01) == 0;
if(needs_parity)
bytes[i] |= 0x01;
else
bytes[i] &= 0xfe;
}
}
#endif /* USE_NTLM && (!USE_OPENSSL || HAVE_BORINGSSL) */