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git.ipfire.org Git - thirdparty/openssl.git/blob - crypto/des/fcrypt.c
5 #define CHARSET_EBCDIC 1
9 #include <openssl/ebcdic.h>
12 #include <openssl/crypto.h>
14 /* This version of crypt has been developed from my MIT compatible
16 * Eric Young (eay@cryptsoft.com)
19 /* Modification by Jens Kupferschmidt (Cu)
20 * I have included directive PARA for shared memory computers.
21 * I have included a directive LONGCRYPT to using this routine to cipher
22 * passwords with more then 8 bytes like HP-UX 10.x it used. The MAXPLEN
23 * definition is the maximum of length of password and can changed. I have
29 /* Added more values to handle illegal salt values the way normal
30 * crypt() implementations do. The patch was sent by
31 * Bjorn Gronvall <bg@sics.se>
33 static unsigned const char con_salt
[128]={
34 0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,
35 0xDA,0xDB,0xDC,0xDD,0xDE,0xDF,0xE0,0xE1,
36 0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,
37 0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,
38 0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,
39 0xFA,0xFB,0xFC,0xFD,0xFE,0xFF,0x00,0x01,
40 0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,
41 0x0A,0x0B,0x05,0x06,0x07,0x08,0x09,0x0A,
42 0x0B,0x0C,0x0D,0x0E,0x0F,0x10,0x11,0x12,
43 0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A,
44 0x1B,0x1C,0x1D,0x1E,0x1F,0x20,0x21,0x22,
45 0x23,0x24,0x25,0x20,0x21,0x22,0x23,0x24,
46 0x25,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2C,
47 0x2D,0x2E,0x2F,0x30,0x31,0x32,0x33,0x34,
48 0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C,
49 0x3D,0x3E,0x3F,0x40,0x41,0x42,0x43,0x44,
52 static unsigned const char cov_2char
[64]={
53 0x2E,0x2F,0x30,0x31,0x32,0x33,0x34,0x35,
54 0x36,0x37,0x38,0x39,0x41,0x42,0x43,0x44,
55 0x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C,
56 0x4D,0x4E,0x4F,0x50,0x51,0x52,0x53,0x54,
57 0x55,0x56,0x57,0x58,0x59,0x5A,0x61,0x62,
58 0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,
59 0x6B,0x6C,0x6D,0x6E,0x6F,0x70,0x71,0x72,
60 0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A
63 char *DES_crypt(const char *buf
, const char *salt
)
67 #ifndef CHARSET_EBCDIC
68 return(DES_fcrypt(buf
,salt
,buff
));
71 char e_buf
[32+1]; /* replace 32 by 8 ? */
74 /* Copy at most 2 chars of salt */
75 if ((e_salt
[0] = salt
[0]) != '\0')
78 /* Copy at most 32 chars of password */
79 strncpy (e_buf
, buf
, sizeof(e_buf
));
81 /* Make sure we have a delimiter */
82 e_salt
[sizeof(e_salt
)-1] = e_buf
[sizeof(e_buf
)-1] = '\0';
84 /* Convert the e_salt to ASCII, as that's what DES_fcrypt works on */
85 ebcdic2ascii(e_salt
, e_salt
, sizeof e_salt
);
87 /* Convert the cleartext password to ASCII */
88 ebcdic2ascii(e_buf
, e_buf
, sizeof e_buf
);
90 /* Encrypt it (from/to ASCII) */
91 ret
= DES_fcrypt(e_buf
,e_salt
,buff
);
93 /* Convert the result back to EBCDIC */
94 ascii2ebcdic(ret
, ret
, strlen(ret
));
101 char *DES_fcrypt(const char *buf
, const char *salt
, char *ret
)
103 unsigned int i
,j
,x
,y
;
104 DES_LONG Eswap0
,Eswap1
;
113 * If you call crypt("pwd","*") as often happens when you
114 * have * as the pwd field in /etc/passwd, the function
115 * returns *\0XXXXXXXXX
116 * The \0 makes the string look like * so the pwd "*" would
117 * crypt to "*". This was found when replacing the crypt in
118 * our shared libraries. People found that the disabled
119 * accounts effectively had no passwd :-(. */
120 #ifndef CHARSET_EBCDIC
121 x
=ret
[0]=((salt
[0] == '\0')?'A':salt
[0]);
122 Eswap0
=con_salt
[x
]<<2;
123 x
=ret
[1]=((salt
[1] == '\0')?'A':salt
[1]);
124 Eswap1
=con_salt
[x
]<<6;
126 x
=ret
[0]=((salt
[0] == '\0')?os_toascii
['A']:salt
[0]);
127 Eswap0
=con_salt
[x
]<<2;
128 x
=ret
[1]=((salt
[1] == '\0')?os_toascii
['A']:salt
[1]);
129 Eswap1
=con_salt
[x
]<<6;
145 DES_set_key_unchecked(&key
,&ks
);
146 fcrypt_body(&(out
[0]),&ks
,Eswap0
,Eswap1
);
148 ll
=out
[0]; l2c(ll
,b
);
149 ll
=out
[1]; l2c(ll
,b
);