2 * Copyright (c) 2000-2001, Boris Popov
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Boris Popov.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * $FreeBSD: src/sys/netsmb/smb_crypt.c,v 1.1.2.3 2001/09/03 08:55:11 bp Exp $
33 * $DragonFly: src/sys/netproto/smb/smb_crypt.c,v 1.5 2008/01/05 14:02:40 swildner Exp $
35 #include <sys/param.h>
36 #include <sys/malloc.h>
37 #include <sys/kernel.h>
38 #include <sys/systm.h>
41 #include <sys/fcntl.h>
42 #include <sys/socket.h>
43 #include <sys/socketvar.h>
44 #include <sys/sysctl.h>
47 #include <sys/iconv.h>
54 #include "opt_netsmb.h"
58 #include <crypto/des/des.h>
60 static u_char N8
[] = {0x4b, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25};
64 smb_E(const u_char
*key
, u_char
*data
, u_char
*dest
)
66 des_key_schedule
*ksp
;
69 kk
[0] = key
[0] & 0xfe;
70 kk
[1] = key
[0] << 7 | (key
[1] >> 1 & 0xfe);
71 kk
[2] = key
[1] << 6 | (key
[2] >> 2 & 0xfe);
72 kk
[3] = key
[2] << 5 | (key
[3] >> 3 & 0xfe);
73 kk
[4] = key
[3] << 4 | (key
[4] >> 4 & 0xfe);
74 kk
[5] = key
[4] << 3 | (key
[5] >> 5 & 0xfe);
75 kk
[6] = key
[5] << 2 | (key
[6] >> 6 & 0xfe);
77 ksp
= kmalloc(sizeof(des_key_schedule
), M_SMBTEMP
, M_WAITOK
);
78 des_set_key((des_cblock
*)kk
, *ksp
);
79 des_ecb_encrypt((des_cblock
*)data
, (des_cblock
*)dest
, *ksp
, 1);
80 kfree(ksp
, M_SMBTEMP
);
86 smb_encrypt(const u_char
*apwd
, u_char
*C8
, u_char
*RN
)
89 u_char
*p
, *P14
, *S21
;
91 p
= kmalloc(14 + 21, M_SMBTEMP
, M_WAITOK
| M_ZERO
);
94 bcopy(apwd
, P14
, min(14, strlen(apwd
)));
96 * S21 = concat(Ex(P14, N8), zeros(5));
99 smb_E(P14
+ 7, N8
, S21
+ 8);
102 smb_E(S21
+ 7, C8
, RN
+ 8);
103 smb_E(S21
+ 14, C8
, RN
+ 16);
107 SMBERROR("password encryption is not available\n");
114 smb_ntencrypt(const u_char
*apwd
, u_char
*C8
, u_char
*RN
)
123 unipwd
= kmalloc((len
+ 1) * sizeof(u_int16_t
), M_SMBTEMP
, M_WAITOK
);
125 * S21 = concat(MD4(U(apwd)), zeros(5));
127 smb_strtouni(unipwd
, apwd
);
128 ctxp
= kmalloc(sizeof(MD4_CTX
), M_SMBTEMP
, M_WAITOK
);
130 MD4Update(ctxp
, (u_char
*)unipwd
, len
* sizeof(u_int16_t
));
131 kfree(unipwd
, M_SMBTEMP
);
134 kfree(ctxp
, M_SMBTEMP
);
137 smb_E(S21
+ 7, C8
, RN
+ 8);
138 smb_E(S21
+ 14, C8
, RN
+ 16);
141 SMBERROR("password encryption is not available\n");