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407 lines
11 KiB
C
407 lines
11 KiB
C
/*
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* Copyright 2004 Hans Leidekker
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*
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* Based on LMHash.c from libcifs
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*
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* Copyright (C) 2004 by Christopher R. Hertel
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "windef.h"
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#include "winbase.h"
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#include "winreg.h"
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#include "winternl.h"
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#include "crypt.h"
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static const unsigned char CRYPT_LMhash_Magic[8] =
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{ 'K', 'G', 'S', '!', '@', '#', '$', '%' };
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static void CRYPT_LMhash( unsigned char *dst, const unsigned char *pwd, const int len )
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{
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int i, max = 14;
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unsigned char tmp_pwd[14] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
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max = len > max ? max : len;
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for (i = 0; i < max; i++)
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tmp_pwd[i] = pwd[i];
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CRYPT_DEShash( dst, tmp_pwd, CRYPT_LMhash_Magic );
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CRYPT_DEShash( &dst[8], &tmp_pwd[7], CRYPT_LMhash_Magic );
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}
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NTSTATUS WINAPI SystemFunction006( LPCSTR password, LPSTR hash )
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{
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CRYPT_LMhash( (unsigned char*)hash, (const unsigned char*)password, strlen(password) );
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return STATUS_SUCCESS;
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}
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/******************************************************************************
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* SystemFunction008 [ADVAPI32.@]
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*
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* Creates a LM response from a challenge and a password hash
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*
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* PARAMS
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* challenge [I] Challenge from authentication server
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* hash [I] NTLM hash (from SystemFunction006)
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* response [O] response to send back to the server
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*
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* RETURNS
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* Success: STATUS_SUCCESS
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* Failure: STATUS_UNSUCCESSFUL
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*
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* NOTES
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* see http://davenport.sourceforge.net/ntlm.html#theLmResponse
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*
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*/
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NTSTATUS WINAPI SystemFunction008(const LPBYTE challenge, const LPBYTE hash, LPBYTE response)
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{
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BYTE key[7*3];
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if (!challenge || !response)
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return STATUS_UNSUCCESSFUL;
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memset(key, 0, sizeof key);
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memcpy(key, hash, 0x10);
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CRYPT_DEShash(response, key, challenge);
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CRYPT_DEShash(response+8, key+7, challenge);
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CRYPT_DEShash(response+16, key+14, challenge);
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return STATUS_SUCCESS;
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}
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/******************************************************************************
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* SystemFunction009 [ADVAPI32.@]
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*
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* Seems to do the same as SystemFunction008 ...
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*/
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NTSTATUS WINAPI SystemFunction009(const LPBYTE challenge, const LPBYTE hash, LPBYTE response)
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{
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return SystemFunction008(challenge, hash, response);
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}
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/******************************************************************************
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* SystemFunction001 [ADVAPI32.@]
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*
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* Encrypts a single block of data using DES
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*
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* PARAMS
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* data [I] data to encrypt (8 bytes)
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* key [I] key data (7 bytes)
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* output [O] the encrypted data (8 bytes)
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*
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* RETURNS
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* Success: STATUS_SUCCESS
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* Failure: STATUS_UNSUCCESSFUL
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*
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*/
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NTSTATUS WINAPI SystemFunction001(const LPBYTE data, const LPBYTE key, LPBYTE output)
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{
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if (!data || !output)
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return STATUS_UNSUCCESSFUL;
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CRYPT_DEShash(output, key, data);
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return STATUS_SUCCESS;
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}
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/******************************************************************************
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* SystemFunction002 [ADVAPI32.@]
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*
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* Decrypts a single block of data using DES
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*
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* PARAMS
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* data [I] data to decrypt (8 bytes)
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* key [I] key data (7 bytes)
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* output [O] the decrypted data (8 bytes)
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*
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* RETURNS
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* Success: STATUS_SUCCESS
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* Failure: STATUS_UNSUCCESSFUL
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*
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*/
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NTSTATUS WINAPI SystemFunction002(const LPBYTE data, const LPBYTE key, LPBYTE output)
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{
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if (!data || !output)
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return STATUS_UNSUCCESSFUL;
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CRYPT_DESunhash(output, key, data);
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return STATUS_SUCCESS;
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}
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/******************************************************************************
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* SystemFunction003 [ADVAPI32.@]
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*
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* Hashes a key using DES and a fixed datablock
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*
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* PARAMS
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* key [I] key data (7 bytes)
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* output [O] hashed key (8 bytes)
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*
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* RETURNS
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* Success: STATUS_SUCCESS
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* Failure: STATUS_UNSUCCESSFUL
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*
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*/
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NTSTATUS WINAPI SystemFunction003(const LPBYTE key, LPBYTE output)
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{
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if (!output)
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return STATUS_UNSUCCESSFUL;
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CRYPT_DEShash(output, key, CRYPT_LMhash_Magic);
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return STATUS_SUCCESS;
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}
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/******************************************************************************
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* SystemFunction004 [ADVAPI32.@]
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*
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* Encrypts a block of data with DES in ECB mode, preserving the length
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*
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* PARAMS
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* data [I] data to encrypt
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* key [I] key data (up to 7 bytes)
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* output [O] buffer to receive encrypted data
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*
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* RETURNS
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* Success: STATUS_SUCCESS
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* Failure: STATUS_BUFFER_TOO_SMALL if the output buffer is too small
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* Failure: STATUS_INVALID_PARAMETER_2 if the key is zero length
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*
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* NOTES
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* Encrypt buffer size should be input size rounded up to 8 bytes
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* plus an extra 8 bytes.
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*/
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NTSTATUS WINAPI SystemFunction004(const struct ustring *in,
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const struct ustring *key,
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struct ustring *out)
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{
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union {
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unsigned char uc[8];
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unsigned int ui[2];
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} data;
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unsigned char deskey[7];
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int crypt_len, ofs;
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if (key->Length<=0)
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return STATUS_INVALID_PARAMETER_2;
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crypt_len = ((in->Length+7)&~7);
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if (out->MaximumLength < (crypt_len+8))
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return STATUS_BUFFER_TOO_SMALL;
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data.ui[0] = in->Length;
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data.ui[1] = 1;
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if (key->Length<sizeof deskey)
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{
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memset(deskey, 0, sizeof deskey);
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memcpy(deskey, key->Buffer, key->Length);
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}
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else
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memcpy(deskey, key->Buffer, sizeof deskey);
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CRYPT_DEShash(out->Buffer, deskey, data.uc);
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for(ofs=0; ofs<(crypt_len-8); ofs+=8)
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CRYPT_DEShash(out->Buffer+8+ofs, deskey, in->Buffer+ofs);
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memset(data.uc, 0, sizeof data.uc);
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memcpy(data.uc, in->Buffer+ofs, in->Length +8-crypt_len);
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CRYPT_DEShash(out->Buffer+8+ofs, deskey, data.uc);
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out->Length = crypt_len+8;
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return STATUS_SUCCESS;
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}
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/******************************************************************************
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* SystemFunction005 [ADVAPI32.@]
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*
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* Decrypts a block of data with DES in ECB mode
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*
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* PARAMS
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* data [I] data to decrypt
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* key [I] key data (up to 7 bytes)
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* output [O] buffer to receive decrypted data
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*
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* RETURNS
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* Success: STATUS_SUCCESS
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* Failure: STATUS_BUFFER_TOO_SMALL if the output buffer is too small
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* Failure: STATUS_INVALID_PARAMETER_2 if the key is zero length
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*
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*/
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NTSTATUS WINAPI SystemFunction005(const struct ustring *in,
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const struct ustring *key,
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struct ustring *out)
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{
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union {
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unsigned char uc[8];
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unsigned int ui[2];
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} data;
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unsigned char deskey[7];
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int ofs, crypt_len;
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if (key->Length<=0)
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return STATUS_INVALID_PARAMETER_2;
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if (key->Length<sizeof deskey)
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{
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memset(deskey, 0, sizeof deskey);
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memcpy(deskey, key->Buffer, key->Length);
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}
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else
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memcpy(deskey, key->Buffer, sizeof deskey);
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CRYPT_DESunhash(data.uc, deskey, in->Buffer);
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if (data.ui[1] != 1)
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return STATUS_UNKNOWN_REVISION;
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crypt_len = data.ui[0];
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if (crypt_len > out->MaximumLength)
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return STATUS_BUFFER_TOO_SMALL;
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for (ofs=0; (ofs+8)<crypt_len; ofs+=8)
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CRYPT_DESunhash(out->Buffer+ofs, deskey, in->Buffer+ofs+8);
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if (ofs<crypt_len)
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{
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CRYPT_DESunhash(data.uc, deskey, in->Buffer+ofs+8);
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memcpy(out->Buffer+ofs, data.uc, crypt_len-ofs);
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}
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out->Length = crypt_len;
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return STATUS_SUCCESS;
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}
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/******************************************************************************
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* SystemFunction012 [ADVAPI32.@]
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* SystemFunction014 [ADVAPI32.@]
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* SystemFunction016 [ADVAPI32.@]
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* SystemFunction018 [ADVAPI32.@]
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* SystemFunction020 [ADVAPI32.@]
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* SystemFunction022 [ADVAPI32.@]
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*
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* Encrypts two DES blocks with two keys
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*
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* PARAMS
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* data [I] data to encrypt (16 bytes)
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* key [I] key data (two lots of 7 bytes)
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* output [O] buffer to receive encrypted data (16 bytes)
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*
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* RETURNS
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* Success: STATUS_SUCCESS
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* Failure: STATUS_UNSUCCESSFUL if the input or output buffer is NULL
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*/
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NTSTATUS WINAPI SystemFunction012(const LPBYTE in, const LPBYTE key, LPBYTE out)
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{
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if (!in || !out)
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return STATUS_UNSUCCESSFUL;
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CRYPT_DEShash(out, key, in);
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CRYPT_DEShash(out+8, key+7, in+8);
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return STATUS_SUCCESS;
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}
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/******************************************************************************
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* SystemFunction013 [ADVAPI32.@]
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* SystemFunction015 [ADVAPI32.@]
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* SystemFunction017 [ADVAPI32.@]
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* SystemFunction019 [ADVAPI32.@]
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* SystemFunction021 [ADVAPI32.@]
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* SystemFunction023 [ADVAPI32.@]
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*
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* Decrypts two DES blocks with two keys
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*
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* PARAMS
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* data [I] data to decrypt (16 bytes)
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* key [I] key data (two lots of 7 bytes)
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* output [O] buffer to receive decrypted data (16 bytes)
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*
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* RETURNS
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* Success: STATUS_SUCCESS
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* Failure: STATUS_UNSUCCESSFUL if the input or output buffer is NULL
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*/
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NTSTATUS WINAPI SystemFunction013(const LPBYTE in, const LPBYTE key, LPBYTE out)
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{
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if (!in || !out)
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return STATUS_UNSUCCESSFUL;
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CRYPT_DESunhash(out, key, in);
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CRYPT_DESunhash(out+8, key+7, in+8);
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return STATUS_SUCCESS;
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}
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/******************************************************************************
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* SystemFunction024 [ADVAPI32.@]
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*
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* Encrypts two DES blocks with a 32 bit key...
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*
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* PARAMS
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* data [I] data to encrypt (16 bytes)
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* key [I] key data (4 bytes)
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* output [O] buffer to receive encrypted data (16 bytes)
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*
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* RETURNS
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* Success: STATUS_SUCCESS
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*/
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NTSTATUS WINAPI SystemFunction024(const LPBYTE in, const LPBYTE key, LPBYTE out)
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{
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BYTE deskey[0x10];
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memcpy(deskey, key, 4);
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memcpy(deskey+4, key, 4);
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memcpy(deskey+8, key, 4);
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memcpy(deskey+12, key, 4);
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CRYPT_DEShash(out, deskey, in);
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CRYPT_DEShash(out+8, deskey+7, in+8);
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return STATUS_SUCCESS;
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}
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/******************************************************************************
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* SystemFunction025 [ADVAPI32.@]
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*
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* Decrypts two DES blocks with a 32 bit key...
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*
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* PARAMS
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* data [I] data to encrypt (16 bytes)
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* key [I] key data (4 bytes)
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* output [O] buffer to receive encrypted data (16 bytes)
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*
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* RETURNS
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* Success: STATUS_SUCCESS
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*/
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NTSTATUS WINAPI SystemFunction025(const LPBYTE in, const LPBYTE key, LPBYTE out)
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{
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BYTE deskey[0x10];
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memcpy(deskey, key, 4);
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memcpy(deskey+4, key, 4);
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memcpy(deskey+8, key, 4);
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memcpy(deskey+12, key, 4);
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CRYPT_DESunhash(out, deskey, in);
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CRYPT_DESunhash(out+8, deskey+7, in+8);
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return STATUS_SUCCESS;
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}
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