3 Unix SMB/Netbios implementation.
5 SMB parameters and setup
6 Copyright (C) Andrew Tridgell 1992-1995
7 Modified by Jeremy Allison 1995.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
29 extern int DEBUGLEVEL;
32 #define uchar unsigned char
35 #define int16 unsigned short
38 #define uint16 unsigned short
41 #define uint32 unsigned int
44 #include "byteorder.h"
46 void str_to_key(uchar *str,uchar *key)
48 void des_set_odd_parity(des_cblock *);
52 key[1] = ((str[0]&0x01)<<6) | (str[1]>>2);
53 key[2] = ((str[1]&0x03)<<5) | (str[2]>>3);
54 key[3] = ((str[2]&0x07)<<4) | (str[3]>>4);
55 key[4] = ((str[3]&0x0F)<<3) | (str[4]>>5);
56 key[5] = ((str[4]&0x1F)<<2) | (str[5]>>6);
57 key[6] = ((str[5]&0x3F)<<1) | (str[6]>>7);
62 des_set_odd_parity((des_cblock *)key);
65 void D1(uchar *k, uchar *d, uchar *out)
70 str_to_key(k,(uchar *)deskey);
71 des_set_key(deskey,ks);
72 des_ecb_encrypt(d, out, ks, DES_DECRYPT);
75 void E1(uchar *k, uchar *d, uchar *out)
80 str_to_key(k,(uchar *)deskey);
81 des_set_key(deskey,ks);
82 des_ecb_encrypt(d, out, ks, DES_ENCRYPT);
85 void E_P16(uchar *p14,uchar *p16)
88 /* the following constant makes us compatible with other
89 implementations. Note that publishing this constant does not reduce the
90 security of the encryption mechanism */
91 uchar sp8[] = {0xAA,0xD3,0xB4,0x35,0xB5,0x14,0x4,0xEE};
101 void E_P24(uchar *p21, uchar *c8, uchar *p24)
104 E1(p21+7, c8, p24+8);
105 E1(p21+14, c8, p24+16);
110 This implements the X/Open SMB password encryption
111 It takes a password, a 8 byte "crypt key" and puts 24 bytes of
112 encrypted password into p24 */
113 void SMBencrypt(uchar *passwd, uchar *c8, uchar *p24)
115 uchar p14[15], p21[21];
119 StrnCpy((char *)p14,(char *)passwd,14);
121 strupper((char *)p14);
126 /* Routines for Windows NT MD4 Hash functions. */
127 static int _my_wcslen(int16 *str)
136 * Convert a string into an NT UNICODE string.
137 * Note that regardless of processor type
138 * this must be in intel (little-endian)
142 static int _my_mbstowcs(int16 *dst, uchar *src, int len)
147 for(i = 0; i < len; i++) {
159 * Creates the MD4 Hash of the users password in NT UNICODE.
162 void E_md4hash(uchar *passwd, uchar *p16)
168 /* Password cannot be longer than 128 characters */
169 len = strlen(passwd);
172 /* Password must be converted to NT unicode */
173 _my_mbstowcs( wpwd, passwd, len);
174 wpwd[len] = 0; /* Ensure string is null terminated */
175 /* Calculate length in bytes */
176 len = _my_wcslen(wpwd) * sizeof(int16);
179 for(i = 0; i + 64 <= len; i += 64)
180 MDupdate(&MD,wpwd + (i/2), 512);
181 MDupdate(&MD,wpwd + (i/2),(len-i)*8);
182 SIVAL(p16,0,MD.buffer[0]);
183 SIVAL(p16,4,MD.buffer[1]);
184 SIVAL(p16,8,MD.buffer[2]);
185 SIVAL(p16,12,MD.buffer[3]);
188 /* Does the NT MD4 hash then des encryption. */
190 void SMBNTencrypt(uchar *passwd, uchar *c8, uchar *p24)
196 E_md4hash(passwd, p21);
201 void smbencrypt_dummy(void){}