]>
git.ipfire.org Git - thirdparty/openssl.git/blob - apps/passwd.c
3 #if defined OPENSSL_NO_MD5 || defined CHARSET_EBCDIC
7 #if !defined(OPENSSL_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>
18 #ifndef OPENSSL_NO_DES
19 # include <openssl/des.h>
22 # include <openssl/evp.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)
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 * -noverify - never verify when reading password from terminal
54 * -quiet - no warnings
55 * -table - format output as table
56 * -reverse - switch table columns
59 int MAIN(int, char **);
61 int MAIN(int argc
, char **argv
)
67 char *salt
= NULL
, *passwd
= NULL
, **passwds
= NULL
;
68 char *salt_malloc
= NULL
, *passwd_malloc
= NULL
;
69 size_t passwd_malloc_size
= 0;
70 int pw_source_defined
= 0;
71 BIO
*in
= NULL
, *out
= NULL
;
72 int i
, badopt
, opt_done
;
73 int passed_salt
= 0, quiet
= 0, table
= 0, reverse
= 0;
74 int usecrypt
= 0, use1
= 0, useapr1
= 0;
80 if ((bio_err
=BIO_new(BIO_s_file())) != NULL
)
81 BIO_set_fp(bio_err
,stderr
,BIO_NOCLOSE
|BIO_FP_TEXT
);
82 out
= BIO_new(BIO_s_file());
85 BIO_set_fp(out
, stdout
, BIO_NOCLOSE
| BIO_FP_TEXT
);
86 #ifdef OPENSSL_SYS_VMS
88 BIO
*tmpbio
= BIO_new(BIO_f_linebuffer());
89 out
= BIO_push(tmpbio
, out
);
93 badopt
= 0, opt_done
= 0;
95 while (!badopt
&& !opt_done
&& argv
[++i
] != NULL
)
97 if (strcmp(argv
[i
], "-crypt") == 0)
99 else if (strcmp(argv
[i
], "-1") == 0)
101 else if (strcmp(argv
[i
], "-apr1") == 0)
103 else if (strcmp(argv
[i
], "-salt") == 0)
105 if ((argv
[i
+1] != NULL
) && (salt
== NULL
))
113 else if (strcmp(argv
[i
], "-in") == 0)
115 if ((argv
[i
+1] != NULL
) && !pw_source_defined
)
117 pw_source_defined
= 1;
123 else if (strcmp(argv
[i
], "-stdin") == 0)
125 if (!pw_source_defined
)
127 pw_source_defined
= 1;
133 else if (strcmp(argv
[i
], "-noverify") == 0)
135 else if (strcmp(argv
[i
], "-quiet") == 0)
137 else if (strcmp(argv
[i
], "-table") == 0)
139 else if (strcmp(argv
[i
], "-reverse") == 0)
141 else if (argv
[i
][0] == '-')
143 else if (!pw_source_defined
)
144 /* non-option arguments, use as passwords */
146 pw_source_defined
= 1;
154 if (!usecrypt
&& !use1
&& !useapr1
) /* use default */
156 if (usecrypt
+ use1
+ useapr1
> 1) /* conflict */
159 /* reject unsupported algorithms */
160 #ifdef OPENSSL_NO_DES
161 if (usecrypt
) badopt
= 1;
164 if (use1
|| useapr1
) badopt
= 1;
169 BIO_printf(bio_err
, "Usage: passwd [options] [passwords]\n");
170 BIO_printf(bio_err
, "where options are\n");
171 #ifndef OPENSSL_NO_DES
172 BIO_printf(bio_err
, "-crypt standard Unix password algorithm (default)\n");
174 #ifndef NO_MD5CRYPT_1
175 BIO_printf(bio_err
, "-1 MD5-based password algorithm\n");
176 BIO_printf(bio_err
, "-apr1 MD5-based password algorithm, Apache variant\n");
178 BIO_printf(bio_err
, "-salt string use provided salt\n");
179 BIO_printf(bio_err
, "-in file read passwords from file\n");
180 BIO_printf(bio_err
, "-stdin read passwords from stdin\n");
181 BIO_printf(bio_err
, "-noverify never verify when reading password from terminal\n");
182 BIO_printf(bio_err
, "-quiet no warnings\n");
183 BIO_printf(bio_err
, "-table format output as table\n");
184 BIO_printf(bio_err
, "-reverse switch table columns\n");
189 if ((infile
!= NULL
) || in_stdin
)
191 in
= BIO_new(BIO_s_file());
196 assert(in_stdin
== 0);
197 if (BIO_read_filename(in
, infile
) <= 0)
203 BIO_set_fp(in
, stdin
, BIO_NOCLOSE
);
209 else if (use1
|| useapr1
)
210 pw_maxlen
= 256; /* arbitrary limit, should be enough for most passwords */
214 /* no passwords on the command line */
216 passwd_malloc_size
= pw_maxlen
+ 2;
217 /* longer than necessary so that we can warn about truncation */
218 passwd
= passwd_malloc
= OPENSSL_malloc(passwd_malloc_size
);
219 if (passwd_malloc
== NULL
)
223 if ((in
== NULL
) && (passwds
== NULL
))
225 /* build a null-terminated list */
226 static char *passwds_static
[2] = {NULL
, NULL
};
228 passwds
= passwds_static
;
230 if (EVP_read_pw_string(passwd_malloc
, passwd_malloc_size
, "Password: ", !(passed_salt
|| in_noverify
)) != 0)
232 passwds
[0] = passwd_malloc
;
237 assert(passwds
!= NULL
);
238 assert(*passwds
!= NULL
);
240 do /* loop over list of passwords */
243 if (!do_passwd(passed_salt
, &salt
, &salt_malloc
, passwd
, out
,
244 quiet
, table
, reverse
, pw_maxlen
, usecrypt
, use1
, useapr1
))
247 while (*passwds
!= NULL
);
254 assert (passwd
!= NULL
);
257 int r
= BIO_gets(in
, passwd
, pw_maxlen
+ 1);
260 char *c
= (strchr(passwd
, '\n')) ;
262 *c
= 0; /* truncate at newline */
265 /* ignore rest of line */
268 r
= BIO_gets(in
, trash
, sizeof trash
);
269 while ((r
> 0) && (!strchr(trash
, '\n')));
272 if (!do_passwd(passed_salt
, &salt
, &salt_malloc
, passwd
, out
,
273 quiet
, table
, reverse
, pw_maxlen
, usecrypt
, use1
, useapr1
))
283 ERR_print_errors(bio_err
);
285 OPENSSL_free(salt_malloc
);
287 OPENSSL_free(passwd_malloc
);
297 #ifndef NO_MD5CRYPT_1
298 /* MD5-based password algorithm (should probably be available as a library
299 * function; then the static buffer would not be acceptable).
300 * For magic string "1", this should be compatible to the MD5-based BSD
301 * password algorithm.
302 * For 'magic' string "apr1", this is compatible to the MD5-based Apache
303 * password algorithm.
304 * (Apparently, the Apache password algorithm is identical except that the
305 * 'magic' string was changed -- the laziest application of the NIH principle
306 * I've ever encountered.)
308 static char *md5crypt(const char *passwd
, const char *magic
, const char *salt
)
310 static char out_buf
[6 + 9 + 24 + 2]; /* "$apr1$..salt..$.......md5hash..........\0" */
311 unsigned char buf
[MD5_DIGEST_LENGTH
];
315 size_t passwd_len
, salt_len
;
317 passwd_len
= strlen(passwd
);
320 assert(strlen(magic
) <= 4); /* "1" or "apr1" */
321 strncat(out_buf
, magic
, 4);
322 strncat(out_buf
, "$", 1);
323 strncat(out_buf
, salt
, 8);
324 assert(strlen(out_buf
) <= 6 + 8); /* "$apr1$..salt.." */
325 salt_out
= out_buf
+ 2 + strlen(magic
);
326 salt_len
= strlen(salt_out
);
327 assert(salt_len
<= 8);
329 EVP_MD_CTX_init(&md
);
330 EVP_DigestInit(&md
,EVP_md5());
331 EVP_DigestUpdate(&md
, passwd
, passwd_len
);
332 EVP_DigestUpdate(&md
, "$", 1);
333 EVP_DigestUpdate(&md
, magic
, strlen(magic
));
334 EVP_DigestUpdate(&md
, "$", 1);
335 EVP_DigestUpdate(&md
, salt_out
, salt_len
);
337 EVP_MD_CTX_init(&md2
);
338 EVP_DigestInit(&md2
,EVP_md5());
339 EVP_DigestUpdate(&md2
, passwd
, passwd_len
);
340 EVP_DigestUpdate(&md2
, salt_out
, salt_len
);
341 EVP_DigestUpdate(&md2
, passwd
, passwd_len
);
342 EVP_DigestFinal(&md2
, buf
, NULL
);
344 for (i
= passwd_len
; i
> sizeof buf
; i
-= sizeof buf
)
345 EVP_DigestUpdate(&md
, buf
, sizeof buf
);
346 EVP_DigestUpdate(&md
, buf
, i
);
351 EVP_DigestUpdate(&md
, (n
& 1) ? "\0" : passwd
, 1);
354 EVP_DigestFinal(&md
, buf
, NULL
);
356 for (i
= 0; i
< 1000; i
++)
358 EVP_DigestInit(&md2
,EVP_md5());
359 EVP_DigestUpdate(&md2
, (i
& 1) ? (unsigned char *) passwd
: buf
,
360 (i
& 1) ? passwd_len
: sizeof buf
);
362 EVP_DigestUpdate(&md2
, salt_out
, salt_len
);
364 EVP_DigestUpdate(&md2
, passwd
, passwd_len
);
365 EVP_DigestUpdate(&md2
, (i
& 1) ? buf
: (unsigned char *) passwd
,
366 (i
& 1) ? sizeof buf
: passwd_len
);
367 EVP_DigestFinal(&md2
, buf
, NULL
);
369 EVP_MD_CTX_cleanup(&md2
);
372 /* transform buf into output string */
374 unsigned char buf_perm
[sizeof buf
];
378 /* silly output permutation */
379 for (dest
= 0, source
= 0; dest
< 14; dest
++, source
= (source
+ 6) % 17)
380 buf_perm
[dest
] = buf
[source
];
381 buf_perm
[14] = buf
[5];
382 buf_perm
[15] = buf
[11];
383 #ifndef PEDANTIC /* Unfortunately, this generates a "no effect" warning */
384 assert(16 == sizeof buf_perm
);
387 output
= salt_out
+ salt_len
;
388 assert(output
== out_buf
+ strlen(out_buf
));
392 for (i
= 0; i
< 15; i
+= 3)
394 *output
++ = cov_2char
[buf_perm
[i
+2] & 0x3f];
395 *output
++ = cov_2char
[((buf_perm
[i
+1] & 0xf) << 2) |
396 (buf_perm
[i
+2] >> 6)];
397 *output
++ = cov_2char
[((buf_perm
[i
] & 3) << 4) |
398 (buf_perm
[i
+1] >> 4)];
399 *output
++ = cov_2char
[buf_perm
[i
] >> 2];
402 *output
++ = cov_2char
[buf_perm
[i
] & 0x3f];
403 *output
++ = cov_2char
[buf_perm
[i
] >> 6];
405 assert(strlen(out_buf
) < sizeof(out_buf
));
407 EVP_MD_CTX_cleanup(&md
);
414 static int do_passwd(int passed_salt
, char **salt_p
, char **salt_malloc_p
,
415 char *passwd
, BIO
*out
, int quiet
, int table
, int reverse
,
416 size_t pw_maxlen
, int usecrypt
, int use1
, int useapr1
)
420 assert(salt_p
!= NULL
);
421 assert(salt_malloc_p
!= NULL
);
423 /* first make sure we have a salt */
426 #ifndef OPENSSL_NO_DES
429 if (*salt_malloc_p
== NULL
)
431 *salt_p
= *salt_malloc_p
= OPENSSL_malloc(3);
432 if (*salt_malloc_p
== NULL
)
435 if (RAND_pseudo_bytes((unsigned char *)*salt_p
, 2) < 0)
437 (*salt_p
)[0] = cov_2char
[(*salt_p
)[0] & 0x3f]; /* 6 bits */
438 (*salt_p
)[1] = cov_2char
[(*salt_p
)[1] & 0x3f]; /* 6 bits */
440 #ifdef CHARSET_EBCDIC
441 ascii2ebcdic(*salt_p
, *salt_p
, 2); /* des_crypt will convert
445 #endif /* !OPENSSL_NO_DES */
447 #ifndef NO_MD5CRYPT_1
452 if (*salt_malloc_p
== NULL
)
454 *salt_p
= *salt_malloc_p
= OPENSSL_malloc(9);
455 if (*salt_malloc_p
== NULL
)
458 if (RAND_pseudo_bytes((unsigned char *)*salt_p
, 8) < 0)
461 for (i
= 0; i
< 8; i
++)
462 (*salt_p
)[i
] = cov_2char
[(*salt_p
)[i
] & 0x3f]; /* 6 bits */
465 #endif /* !NO_MD5CRYPT_1 */
468 assert(*salt_p
!= NULL
);
470 /* truncate password if necessary */
471 if ((strlen(passwd
) > pw_maxlen
))
474 BIO_printf(bio_err
, "Warning: truncating password to %u characters\n", pw_maxlen
);
475 passwd
[pw_maxlen
] = 0;
477 assert(strlen(passwd
) <= pw_maxlen
);
479 /* now compute password hash */
480 #ifndef OPENSSL_NO_DES
482 hash
= des_crypt(passwd
, *salt_p
);
484 #ifndef NO_MD5CRYPT_1
486 hash
= md5crypt(passwd
, (use1
? "1" : "apr1"), *salt_p
);
488 assert(hash
!= NULL
);
490 if (table
&& !reverse
)
491 BIO_printf(out
, "%s\t%s\n", passwd
, hash
);
492 else if (table
&& reverse
)
493 BIO_printf(out
, "%s\t%s\n", hash
, passwd
);
495 BIO_printf(out
, "%s\n", hash
);
503 int MAIN(int argc
, char **argv
)
505 fputs("Program not available.\n", stderr
)