1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/*
* Copyright 1998-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/* NOCW */
#include <stdio.h>
#ifdef _OSD_POSIX
# ifndef CHARSET_EBCDIC
# define CHARSET_EBCDIC 1
# endif
#endif
#ifdef CHARSET_EBCDIC
# include <openssl/ebcdic.h>
#endif
#include <openssl/crypto.h>
#include "des_locl.h"
/*
* Added more values to handle illegal salt values the way normal crypt()
* implementations do. The patch was sent by Bjorn Gronvall <bg@sics.se>
*/
static unsigned const char con_salt[128] = {
0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9,
0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, 0xE0, 0xE1,
0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9,
0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, 0xF0, 0xF1,
0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9,
0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF, 0x00, 0x01,
0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09,
0x0A, 0x0B, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A,
0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12,
0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A,
0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22,
0x23, 0x24, 0x25, 0x20, 0x21, 0x22, 0x23, 0x24,
0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C,
0x2D, 0x2E, 0x2F, 0x30, 0x31, 0x32, 0x33, 0x34,
0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C,
0x3D, 0x3E, 0x3F, 0x40, 0x41, 0x42, 0x43, 0x44,
};
static unsigned const char cov_2char[64] = {
0x2E, 0x2F, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
0x36, 0x37, 0x38, 0x39, 0x41, 0x42, 0x43, 0x44,
0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C,
0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0x53, 0x54,
0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x61, 0x62,
0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A,
0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72,
0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A
};
char *DES_crypt(const char *buf, const char *salt)
{
static char buff[14];
#ifndef CHARSET_EBCDIC
return (DES_fcrypt(buf, salt, buff));
#else
char e_salt[2 + 1];
char e_buf[32 + 1]; /* replace 32 by 8 ? */
char *ret;
if (salt[0] == '\0' || salt[1] == '\0')
return NULL;
/* Copy salt, convert to ASCII. */
e_salt[0] = salt[0];
e_salt[1] = salt[1];
e_salt[2] = '\0';
ebcdic2ascii(e_salt, e_salt, sizeof(e_salt));
/* Convert password to ASCII. */
OPENSSL_strlcpy(e_buf, buf, sizeof(e_buf));
ebcdic2ascii(e_buf, e_buf, sizeof(e_buf));
/* Encrypt it (from/to ASCII); if it worked, convert back. */
ret = DES_fcrypt(e_buf, e_salt, buff);
if (ret != NULL)
ascii2ebcdic(ret, ret, strlen(ret));
return ret;
#endif
}
char *DES_fcrypt(const char *buf, const char *salt, char *ret)
{
unsigned int i, j, x, y;
DES_LONG Eswap0, Eswap1;
DES_LONG out[2], ll;
DES_cblock key;
DES_key_schedule ks;
unsigned char bb[9];
unsigned char *b = bb;
unsigned char c, u;
x = ret[0] = salt[0];
if (x == 0 || x >= sizeof(con_salt))
return NULL;
Eswap0 = con_salt[x] << 2;
x = ret[1] = salt[1];
if (x == 0 || x >= sizeof(con_salt))
return NULL;
Eswap1 = con_salt[x] << 6;
/*
* EAY r=strlen(buf); r=(r+7)/8;
*/
for (i = 0; i < 8; i++) {
c = *(buf++);
if (!c)
break;
key[i] = (c << 1);
}
for (; i < 8; i++)
key[i] = 0;
DES_set_key_unchecked(&key, &ks);
fcrypt_body(&(out[0]), &ks, Eswap0, Eswap1);
ll = out[0];
l2c(ll, b);
ll = out[1];
l2c(ll, b);
y = 0;
u = 0x80;
bb[8] = 0;
for (i = 2; i < 13; i++) {
c = 0;
for (j = 0; j < 6; j++) {
c <<= 1;
if (bb[y] & u)
c |= 1;
u >>= 1;
if (!u) {
y++;
u = 0x80;
}
}
ret[i] = cov_2char[c];
}
ret[13] = '\0';
return (ret);
}
|
