]>
git.ipfire.org Git - thirdparty/openssl.git/blob - apps/passwd.c
3 #if defined NO_MD5 || defined CHARSET_EBCDIC
7 #if !defined(NO_DES) || !defined(NO_MD5CRYPT_1)
14 #include <openssl/bio.h>
15 #include <openssl/err.h>
16 #include <openssl/evp.h>
17 #include <openssl/rand.h>
20 # include <openssl/des.h>
23 # include <openssl/md5.h>
28 #define PROG passwd_main
31 static unsigned const char cov_2char
[64]={
32 /* from crypto/des/fcrypt.c */
33 0x2E,0x2F,0x30,0x31,0x32,0x33,0x34,0x35,
34 0x36,0x37,0x38,0x39,0x41,0x42,0x43,0x44,
35 0x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C,
36 0x4D,0x4E,0x4F,0x50,0x51,0x52,0x53,0x54,
37 0x55,0x56,0x57,0x58,0x59,0x5A,0x61,0x62,
38 0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,
39 0x6B,0x6C,0x6D,0x6E,0x6F,0x70,0x71,0x72,
40 0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A
43 static int do_passwd(int passed_salt
, char **salt_p
, char **salt_malloc_p
,
44 char *passwd
, BIO
*out
, int quiet
, int table
, int reverse
,
45 size_t pw_maxlen
, int usecrypt
, int use1
, int useapr1
);
47 /* -crypt - standard Unix password algorithm (default, only choice)
48 * -1 - MD5-based password algorithm
49 * -apr1 - MD5-based password algorithm, Apache variant
51 * -in file - read passwords from file
52 * -stdin - read passwords from stdin
53 * -quiet - no warnings
54 * -table - format output as table
55 * -reverse - switch table columns
58 int MAIN(int, char **);
60 int MAIN(int argc
, char **argv
)
65 char *salt
= NULL
, *passwd
= NULL
, **passwds
= NULL
;
66 char *salt_malloc
= NULL
, *passwd_malloc
= NULL
;
67 size_t passwd_malloc_size
= 0;
68 int pw_source_defined
= 0;
69 BIO
*in
= NULL
, *out
= NULL
;
70 int i
, badopt
, opt_done
;
71 int passed_salt
= 0, quiet
= 0, table
= 0, reverse
= 0;
72 int usecrypt
= 0, use1
= 0, useapr1
= 0;
78 if ((bio_err
=BIO_new(BIO_s_file())) != NULL
)
79 BIO_set_fp(bio_err
,stderr
,BIO_NOCLOSE
|BIO_FP_TEXT
);
80 out
= BIO_new(BIO_s_file());
83 BIO_set_fp(out
, stdout
, BIO_NOCLOSE
| BIO_FP_TEXT
);
85 badopt
= 0, opt_done
= 0;
87 while (!badopt
&& !opt_done
&& argv
[++i
] != NULL
)
89 if (strcmp(argv
[i
], "-crypt") == 0)
91 else if (strcmp(argv
[i
], "-1") == 0)
93 else if (strcmp(argv
[i
], "-apr1") == 0)
95 else if (strcmp(argv
[i
], "-salt") == 0)
97 if ((argv
[i
+1] != NULL
) && (salt
== NULL
))
105 else if (strcmp(argv
[i
], "-in") == 0)
107 if ((argv
[i
+1] != NULL
) && !pw_source_defined
)
109 pw_source_defined
= 1;
115 else if (strcmp(argv
[i
], "-stdin") == 0)
117 if (!pw_source_defined
)
119 pw_source_defined
= 1;
125 else if (strcmp(argv
[i
], "-quiet") == 0)
127 else if (strcmp(argv
[i
], "-table") == 0)
129 else if (strcmp(argv
[i
], "-reverse") == 0)
131 else if (argv
[i
][0] == '-')
133 else if (!pw_source_defined
)
134 /* non-option arguments, use as passwords */
136 pw_source_defined
= 1;
144 if (!usecrypt
&& !use1
&& !useapr1
) /* use default */
146 if (usecrypt
+ use1
+ useapr1
> 1) /* conflict */
149 /* reject unsupported algorithms */
151 if (usecrypt
) badopt
= 1;
154 if (use1
|| useapr1
) badopt
= 1;
159 BIO_printf(bio_err
, "Usage: passwd [options] [passwords]\n");
160 BIO_printf(bio_err
, "where options are\n");
162 BIO_printf(bio_err
, "-crypt standard Unix password algorithm (default)\n");
164 #ifndef NO_MD5CRYPT_1
165 BIO_printf(bio_err
, "-1 MD5-based password algorithm\n");
166 BIO_printf(bio_err
, "-apr1 MD5-based password algorithm, Apache variant\n");
168 BIO_printf(bio_err
, "-salt string use provided salt\n");
169 BIO_printf(bio_err
, "-in file read passwords from file\n");
170 BIO_printf(bio_err
, "-stdin read passwords from stdin\n");
171 BIO_printf(bio_err
, "-quiet no warnings\n");
172 BIO_printf(bio_err
, "-table format output as table\n");
173 BIO_printf(bio_err
, "-reverse switch table columns\n");
178 if ((infile
!= NULL
) || in_stdin
)
180 in
= BIO_new(BIO_s_file());
185 assert(in_stdin
== 0);
186 if (BIO_read_filename(in
, infile
) <= 0)
192 BIO_set_fp(in
, stdin
, BIO_NOCLOSE
);
198 else if (use1
|| useapr1
)
199 pw_maxlen
= 256; /* arbitrary limit, should be enough for most passwords */
203 /* no passwords on the command line */
205 passwd_malloc_size
= pw_maxlen
+ 2;
206 /* longer than necessary so that we can warn about truncation */
207 passwd
= passwd_malloc
= OPENSSL_malloc(passwd_malloc_size
);
208 if (passwd_malloc
== NULL
)
212 if ((in
== NULL
) && (passwds
== NULL
))
214 /* build a null-terminated list */
215 static char *passwds_static
[2] = {NULL
, NULL
};
217 passwds
= passwds_static
;
219 if (EVP_read_pw_string(passwd_malloc
, passwd_malloc_size
, "Password: ", 0) != 0)
221 passwds
[0] = passwd_malloc
;
226 assert(passwds
!= NULL
);
227 assert(*passwds
!= NULL
);
229 do /* loop over list of passwords */
232 if (!do_passwd(passed_salt
, &salt
, &salt_malloc
, passwd
, out
,
233 quiet
, table
, reverse
, pw_maxlen
, usecrypt
, use1
, useapr1
))
236 while (*passwds
!= NULL
);
243 assert (passwd
!= NULL
);
246 int r
= BIO_gets(in
, passwd
, pw_maxlen
+ 1);
249 char *c
= (strchr(passwd
, '\n')) ;
251 *c
= 0; /* truncate at newline */
254 /* ignore rest of line */
257 r
= BIO_gets(in
, trash
, sizeof trash
);
258 while ((r
> 0) && (!strchr(trash
, '\n')));
261 if (!do_passwd(passed_salt
, &salt
, &salt_malloc
, passwd
, out
,
262 quiet
, table
, reverse
, pw_maxlen
, usecrypt
, use1
, useapr1
))
271 ERR_print_errors(bio_err
);
273 OPENSSL_free(salt_malloc
);
275 OPENSSL_free(passwd_malloc
);
284 #ifndef NO_MD5CRYPT_1
285 /* MD5-based password algorithm (should probably be available as a library
286 * function; then the static buffer would not be acceptable).
287 * For magic string "1", this should be compatible to the MD5-based BSD
288 * password algorithm.
289 * For 'magic' string "apr1", this is compatible to the MD5-based Apache
290 * password algorithm.
291 * (Apparently, the Apache password algorithm is identical except that the
292 * 'magic' string was changed -- the laziest application of the NIH principle
293 * I've ever encountered.)
295 static char *md5crypt(const char *passwd
, const char *magic
, const char *salt
)
297 static char out_buf
[6 + 9 + 24 + 2]; /* "$apr1$..salt..$.......md5hash..........\0" */
298 unsigned char buf
[MD5_DIGEST_LENGTH
];
302 size_t passwd_len
, salt_len
;
304 passwd_len
= strlen(passwd
);
307 assert(strlen(magic
) <= 4); /* "1" or "apr1" */
308 strncat(out_buf
, magic
, 4);
309 strncat(out_buf
, "$", 1);
310 strncat(out_buf
, salt
, 8);
311 assert(strlen(out_buf
) <= 6 + 8); /* "$apr1$..salt.." */
312 salt_out
= out_buf
+ 6;
313 salt_len
= strlen(salt_out
);
314 assert(salt_len
<= 8);
317 MD5_Update(&md
, passwd
, passwd_len
);
318 MD5_Update(&md
, "$", 1);
319 MD5_Update(&md
, magic
, strlen(magic
));
320 MD5_Update(&md
, "$", 1);
321 MD5_Update(&md
, salt_out
, salt_len
);
327 MD5_Update(&md2
, passwd
, passwd_len
);
328 MD5_Update(&md2
, salt_out
, salt_len
);
329 MD5_Update(&md2
, passwd
, passwd_len
);
330 MD5_Final(buf
, &md2
);
332 for (i
= passwd_len
; i
> sizeof buf
; i
-= sizeof buf
)
333 MD5_Update(&md
, buf
, sizeof buf
);
334 MD5_Update(&md
, buf
, i
);
339 MD5_Update(&md
, (n
& 1) ? "\0" : passwd
, 1);
344 for (i
= 0; i
< 1000; i
++)
349 MD5_Update(&md2
, (i
& 1) ? (unsigned char *) passwd
: buf
,
350 (i
& 1) ? passwd_len
: sizeof buf
);
352 MD5_Update(&md2
, salt_out
, salt_len
);
354 MD5_Update(&md2
, passwd
, passwd_len
);
355 MD5_Update(&md2
, (i
& 1) ? buf
: (unsigned char *) passwd
,
356 (i
& 1) ? sizeof buf
: passwd_len
);
357 MD5_Final(buf
, &md2
);
361 /* transform buf into output string */
363 unsigned char buf_perm
[sizeof buf
];
367 /* silly output permutation */
368 for (dest
= 0, source
= 0; dest
< 14; dest
++, source
= (source
+ 6) % 17)
369 buf_perm
[dest
] = buf
[source
];
370 buf_perm
[14] = buf
[5];
371 buf_perm
[15] = buf
[11];
372 #ifndef PEDANTIC /* Unfortunately, this generates a "no effect" warning */
373 assert(16 == sizeof buf_perm
);
376 output
= salt_out
+ salt_len
;
377 assert(output
== out_buf
+ strlen(out_buf
));
381 for (i
= 0; i
< 15; i
+= 3)
383 *output
++ = cov_2char
[buf_perm
[i
+2] & 0x3f];
384 *output
++ = cov_2char
[((buf_perm
[i
+1] & 0xf) << 2) |
385 (buf_perm
[i
+2] >> 6)];
386 *output
++ = cov_2char
[((buf_perm
[i
] & 3) << 4) |
387 (buf_perm
[i
+1] >> 4)];
388 *output
++ = cov_2char
[buf_perm
[i
] >> 2];
391 *output
++ = cov_2char
[buf_perm
[i
] & 0x3f];
392 *output
++ = cov_2char
[buf_perm
[i
] >> 6];
394 assert(strlen(out_buf
) < sizeof(out_buf
));
402 static int do_passwd(int passed_salt
, char **salt_p
, char **salt_malloc_p
,
403 char *passwd
, BIO
*out
, int quiet
, int table
, int reverse
,
404 size_t pw_maxlen
, int usecrypt
, int use1
, int useapr1
)
408 assert(salt_p
!= NULL
);
409 assert(salt_malloc_p
!= NULL
);
411 /* first make sure we have a salt */
417 if (*salt_malloc_p
== NULL
)
419 *salt_p
= *salt_malloc_p
= OPENSSL_malloc(3);
420 if (*salt_malloc_p
== NULL
)
423 if (RAND_pseudo_bytes((unsigned char *)*salt_p
, 2) < 0)
425 (*salt_p
)[0] = cov_2char
[(*salt_p
)[0] & 0x3f]; /* 6 bits */
426 (*salt_p
)[1] = cov_2char
[(*salt_p
)[1] & 0x3f]; /* 6 bits */
428 #ifdef CHARSET_EBCDIC
429 ascii2ebcdic(*salt_p
, *salt_p
, 2); /* des_crypt will convert
435 #ifndef NO_MD5CRYPT_1
440 if (*salt_malloc_p
== NULL
)
442 *salt_p
= *salt_malloc_p
= OPENSSL_malloc(9);
443 if (*salt_malloc_p
== NULL
)
446 if (RAND_pseudo_bytes((unsigned char *)*salt_p
, 8) < 0)
449 for (i
= 0; i
< 8; i
++)
450 (*salt_p
)[i
] = cov_2char
[(*salt_p
)[i
] & 0x3f]; /* 6 bits */
453 #endif /* !NO_MD5CRYPT_1 */
456 assert(*salt_p
!= NULL
);
458 /* truncate password if necessary */
459 if ((strlen(passwd
) > pw_maxlen
))
462 BIO_printf(bio_err
, "Warning: truncating password to %u characters\n", pw_maxlen
);
463 passwd
[pw_maxlen
] = 0;
465 assert(strlen(passwd
) <= pw_maxlen
);
467 /* now compute password hash */
470 hash
= des_crypt(passwd
, *salt_p
);
472 #ifndef NO_MD5CRYPT_1
474 hash
= md5crypt(passwd
, (use1
? "1" : "apr1"), *salt_p
);
476 assert(hash
!= NULL
);
478 if (table
&& !reverse
)
479 BIO_printf(out
, "%s\t%s\n", passwd
, hash
);
480 else if (table
&& reverse
)
481 BIO_printf(out
, "%s\t%s\n", hash
, passwd
);
483 BIO_printf(out
, "%s\n", hash
);
491 int MAIN(int argc
, char **argv
)
493 fputs("Program not available.\n", stderr
)