502 lines
16 KiB
C
502 lines
16 KiB
C
/* ====================================================================
|
|
* Copyright (c) 2000-2015 The OpenSSL Project. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* 3. All advertising materials mentioning features or use of this
|
|
* software must display the following acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
|
|
*
|
|
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
|
|
* endorse or promote products derived from this software without
|
|
* prior written permission. For written permission, please contact
|
|
* licensing@OpenSSL.org.
|
|
*
|
|
* 5. Products derived from this software may not be called "OpenSSL"
|
|
* nor may "OpenSSL" appear in their names without prior written
|
|
* permission of the OpenSSL Project.
|
|
*
|
|
* 6. Redistributions of any form whatsoever must retain the following
|
|
* acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
|
|
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
|
|
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
|
* OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
* ====================================================================
|
|
*/
|
|
|
|
#if defined OPENSSL_NO_MD5 || defined CHARSET_EBCDIC
|
|
# define NO_MD5CRYPT_1
|
|
#endif
|
|
|
|
#if !defined(OPENSSL_NO_DES) || !defined(NO_MD5CRYPT_1)
|
|
|
|
# include <string.h>
|
|
|
|
# include "apps.h"
|
|
|
|
# include <openssl/bio.h>
|
|
# include <openssl/err.h>
|
|
# include <openssl/evp.h>
|
|
# include <openssl/rand.h>
|
|
# ifndef OPENSSL_NO_DES
|
|
# include <openssl/des.h>
|
|
# endif
|
|
# ifndef NO_MD5CRYPT_1
|
|
# include <openssl/md5.h>
|
|
# endif
|
|
|
|
static unsigned const char cov_2char[64] = {
|
|
/* from crypto/des/fcrypt.c */
|
|
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
|
|
};
|
|
|
|
static int do_passwd(int passed_salt, char **salt_p, char **salt_malloc_p,
|
|
char *passwd, BIO *out, int quiet, int table,
|
|
int reverse, size_t pw_maxlen, int usecrypt, int use1,
|
|
int useapr1);
|
|
|
|
typedef enum OPTION_choice {
|
|
OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
|
|
OPT_IN,
|
|
OPT_NOVERIFY, OPT_QUIET, OPT_TABLE, OPT_REVERSE, OPT_APR1,
|
|
OPT_1, OPT_CRYPT, OPT_SALT, OPT_STDIN
|
|
} OPTION_CHOICE;
|
|
|
|
OPTIONS passwd_options[] = {
|
|
{"help", OPT_HELP, '-', "Display this summary"},
|
|
{"in", OPT_IN, '<', "Pead passwords from file"},
|
|
{"noverify", OPT_NOVERIFY, '-',
|
|
"Never verify when reading password from terminal"},
|
|
{"quiet", OPT_QUIET, '-', "No warnings"},
|
|
{"table", OPT_TABLE, '-', "Format output as table"},
|
|
{"reverse", OPT_REVERSE, '-', "Switch table columns"},
|
|
{"salt", OPT_SALT, 's', "Use provided salt"},
|
|
{"stdin", OPT_STDIN, '-', "Read passwords from stdin"},
|
|
# ifndef NO_MD5CRYPT_1
|
|
{"apr1", OPT_APR1, '-', "MD5-based password algorithm, Apache variant"},
|
|
{"1", OPT_1, '-', "MD5-based password algorithm"},
|
|
# endif
|
|
# ifndef OPENSSL_NO_DES
|
|
{"crypt", OPT_CRYPT, '-', "Standard Unix password algorithm (default)"},
|
|
# endif
|
|
{NULL}
|
|
};
|
|
|
|
int passwd_main(int argc, char **argv)
|
|
{
|
|
BIO *in = NULL;
|
|
char *infile = NULL, *salt = NULL, *passwd = NULL, **passwds = NULL;
|
|
char *salt_malloc = NULL, *passwd_malloc = NULL, *prog;
|
|
OPTION_CHOICE o;
|
|
int in_stdin = 0, in_noverify = 0, pw_source_defined = 0;
|
|
int passed_salt = 0, quiet = 0, table = 0, reverse = 0;
|
|
int ret = 1, usecrypt = 0, use1 = 0, useapr1 = 0;
|
|
size_t passwd_malloc_size = 0, pw_maxlen = 256;
|
|
|
|
prog = opt_init(argc, argv, passwd_options);
|
|
while ((o = opt_next()) != OPT_EOF) {
|
|
switch (o) {
|
|
case OPT_EOF:
|
|
case OPT_ERR:
|
|
opthelp:
|
|
BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
|
|
goto end;
|
|
case OPT_HELP:
|
|
opt_help(passwd_options);
|
|
ret = 0;
|
|
goto end;
|
|
case OPT_IN:
|
|
if (pw_source_defined)
|
|
goto opthelp;
|
|
infile = opt_arg();
|
|
pw_source_defined = 1;
|
|
break;
|
|
case OPT_NOVERIFY:
|
|
in_noverify = 1;
|
|
break;
|
|
case OPT_QUIET:
|
|
quiet = 1;
|
|
break;
|
|
case OPT_TABLE:
|
|
table = 1;
|
|
break;
|
|
case OPT_REVERSE:
|
|
reverse = 1;
|
|
break;
|
|
case OPT_1:
|
|
use1 = 1;
|
|
break;
|
|
case OPT_APR1:
|
|
useapr1 = 1;
|
|
break;
|
|
case OPT_CRYPT:
|
|
usecrypt = 1;
|
|
break;
|
|
case OPT_SALT:
|
|
passed_salt = 1;
|
|
salt = opt_arg();
|
|
break;
|
|
case OPT_STDIN:
|
|
if (pw_source_defined)
|
|
goto opthelp;
|
|
in_stdin = 1;
|
|
break;
|
|
}
|
|
}
|
|
argc = opt_num_rest();
|
|
argv = opt_rest();
|
|
|
|
if (*argv) {
|
|
if (pw_source_defined)
|
|
goto opthelp;
|
|
pw_source_defined = 1;
|
|
passwds = argv;
|
|
}
|
|
|
|
if (!usecrypt && !use1 && !useapr1) {
|
|
/* use default */
|
|
usecrypt = 1;
|
|
}
|
|
if (usecrypt + use1 + useapr1 > 1) {
|
|
/* conflict */
|
|
goto opthelp;
|
|
}
|
|
|
|
# ifdef OPENSSL_NO_DES
|
|
if (usecrypt)
|
|
goto opthelp;
|
|
# endif
|
|
# ifdef NO_MD5CRYPT_1
|
|
if (use1 || useapr1)
|
|
goto opthelp;
|
|
# endif
|
|
|
|
if (infile && in_stdin) {
|
|
BIO_printf(bio_err, "%s: Can't combine -in and -stdin\n", prog);
|
|
goto end;
|
|
}
|
|
|
|
in = bio_open_default(infile, 'r', FORMAT_TEXT);
|
|
if (in == NULL)
|
|
goto end;
|
|
|
|
if (usecrypt)
|
|
pw_maxlen = 8;
|
|
else if (use1 || useapr1)
|
|
pw_maxlen = 256; /* arbitrary limit, should be enough for most
|
|
* passwords */
|
|
|
|
if (passwds == NULL) {
|
|
/* no passwords on the command line */
|
|
|
|
passwd_malloc_size = pw_maxlen + 2;
|
|
/* longer than necessary so that we can warn about truncation */
|
|
passwd = passwd_malloc =
|
|
app_malloc(passwd_malloc_size, "password buffer");
|
|
}
|
|
|
|
if ((in == NULL) && (passwds == NULL)) {
|
|
/* build a null-terminated list */
|
|
static char *passwds_static[2] = { NULL, NULL };
|
|
|
|
passwds = passwds_static;
|
|
if (in == NULL)
|
|
if (EVP_read_pw_string
|
|
(passwd_malloc, passwd_malloc_size, "Password: ",
|
|
!(passed_salt || in_noverify)) != 0)
|
|
goto end;
|
|
passwds[0] = passwd_malloc;
|
|
}
|
|
|
|
if (in == NULL) {
|
|
assert(passwds != NULL);
|
|
assert(*passwds != NULL);
|
|
|
|
do { /* loop over list of passwords */
|
|
passwd = *passwds++;
|
|
if (!do_passwd(passed_salt, &salt, &salt_malloc, passwd, bio_out,
|
|
quiet, table, reverse, pw_maxlen, usecrypt, use1,
|
|
useapr1))
|
|
goto end;
|
|
}
|
|
while (*passwds != NULL);
|
|
} else
|
|
/* in != NULL */
|
|
{
|
|
int done;
|
|
|
|
assert(passwd != NULL);
|
|
do {
|
|
int r = BIO_gets(in, passwd, pw_maxlen + 1);
|
|
if (r > 0) {
|
|
char *c = (strchr(passwd, '\n'));
|
|
if (c != NULL)
|
|
*c = 0; /* truncate at newline */
|
|
else {
|
|
/* ignore rest of line */
|
|
char trash[BUFSIZ];
|
|
do
|
|
r = BIO_gets(in, trash, sizeof trash);
|
|
while ((r > 0) && (!strchr(trash, '\n')));
|
|
}
|
|
|
|
if (!do_passwd
|
|
(passed_salt, &salt, &salt_malloc, passwd, bio_out, quiet,
|
|
table, reverse, pw_maxlen, usecrypt, use1, useapr1))
|
|
goto end;
|
|
}
|
|
done = (r <= 0);
|
|
}
|
|
while (!done);
|
|
}
|
|
ret = 0;
|
|
|
|
end:
|
|
ERR_print_errors(bio_err);
|
|
OPENSSL_free(salt_malloc);
|
|
OPENSSL_free(passwd_malloc);
|
|
BIO_free(in);
|
|
return (ret);
|
|
}
|
|
|
|
# ifndef NO_MD5CRYPT_1
|
|
/*
|
|
* MD5-based password algorithm (should probably be available as a library
|
|
* function; then the static buffer would not be acceptable). For magic
|
|
* string "1", this should be compatible to the MD5-based BSD password
|
|
* algorithm. For 'magic' string "apr1", this is compatible to the MD5-based
|
|
* Apache password algorithm. (Apparently, the Apache password algorithm is
|
|
* identical except that the 'magic' string was changed -- the laziest
|
|
* application of the NIH principle I've ever encountered.)
|
|
*/
|
|
static char *md5crypt(const char *passwd, const char *magic, const char *salt)
|
|
{
|
|
/* "$apr1$..salt..$.......md5hash..........\0" */
|
|
static char out_buf[6 + 9 + 24 + 2];
|
|
unsigned char buf[MD5_DIGEST_LENGTH];
|
|
char *salt_out;
|
|
int n;
|
|
unsigned int i;
|
|
EVP_MD_CTX *md, *md2;
|
|
size_t passwd_len, salt_len;
|
|
|
|
passwd_len = strlen(passwd);
|
|
out_buf[0] = '$';
|
|
out_buf[1] = 0;
|
|
assert(strlen(magic) <= 4); /* "1" or "apr1" */
|
|
strncat(out_buf, magic, 4);
|
|
strncat(out_buf, "$", 1);
|
|
strncat(out_buf, salt, 8);
|
|
assert(strlen(out_buf) <= 6 + 8); /* "$apr1$..salt.." */
|
|
salt_out = out_buf + 2 + strlen(magic);
|
|
salt_len = strlen(salt_out);
|
|
assert(salt_len <= 8);
|
|
|
|
md = EVP_MD_CTX_new();
|
|
if (md == NULL)
|
|
return NULL;
|
|
EVP_DigestInit_ex(md, EVP_md5(), NULL);
|
|
EVP_DigestUpdate(md, passwd, passwd_len);
|
|
EVP_DigestUpdate(md, "$", 1);
|
|
EVP_DigestUpdate(md, magic, strlen(magic));
|
|
EVP_DigestUpdate(md, "$", 1);
|
|
EVP_DigestUpdate(md, salt_out, salt_len);
|
|
|
|
md2 = EVP_MD_CTX_new();
|
|
if (md2 == NULL)
|
|
return NULL;
|
|
EVP_DigestInit_ex(md2, EVP_md5(), NULL);
|
|
EVP_DigestUpdate(md2, passwd, passwd_len);
|
|
EVP_DigestUpdate(md2, salt_out, salt_len);
|
|
EVP_DigestUpdate(md2, passwd, passwd_len);
|
|
EVP_DigestFinal_ex(md2, buf, NULL);
|
|
|
|
for (i = passwd_len; i > sizeof buf; i -= sizeof buf)
|
|
EVP_DigestUpdate(md, buf, sizeof buf);
|
|
EVP_DigestUpdate(md, buf, i);
|
|
|
|
n = passwd_len;
|
|
while (n) {
|
|
EVP_DigestUpdate(md, (n & 1) ? "\0" : passwd, 1);
|
|
n >>= 1;
|
|
}
|
|
EVP_DigestFinal_ex(md, buf, NULL);
|
|
|
|
for (i = 0; i < 1000; i++) {
|
|
EVP_DigestInit_ex(md2, EVP_md5(), NULL);
|
|
EVP_DigestUpdate(md2, (i & 1) ? (unsigned const char *)passwd : buf,
|
|
(i & 1) ? passwd_len : sizeof buf);
|
|
if (i % 3)
|
|
EVP_DigestUpdate(md2, salt_out, salt_len);
|
|
if (i % 7)
|
|
EVP_DigestUpdate(md2, passwd, passwd_len);
|
|
EVP_DigestUpdate(md2, (i & 1) ? buf : (unsigned const char *)passwd,
|
|
(i & 1) ? sizeof buf : passwd_len);
|
|
EVP_DigestFinal_ex(md2, buf, NULL);
|
|
}
|
|
EVP_MD_CTX_free(md2);
|
|
EVP_MD_CTX_free(md);
|
|
|
|
{
|
|
/* transform buf into output string */
|
|
|
|
unsigned char buf_perm[sizeof buf];
|
|
int dest, source;
|
|
char *output;
|
|
|
|
/* silly output permutation */
|
|
for (dest = 0, source = 0; dest < 14;
|
|
dest++, source = (source + 6) % 17)
|
|
buf_perm[dest] = buf[source];
|
|
buf_perm[14] = buf[5];
|
|
buf_perm[15] = buf[11];
|
|
# ifndef PEDANTIC /* Unfortunately, this generates a "no
|
|
* effect" warning */
|
|
assert(16 == sizeof buf_perm);
|
|
# endif
|
|
|
|
output = salt_out + salt_len;
|
|
assert(output == out_buf + strlen(out_buf));
|
|
|
|
*output++ = '$';
|
|
|
|
for (i = 0; i < 15; i += 3) {
|
|
*output++ = cov_2char[buf_perm[i + 2] & 0x3f];
|
|
*output++ = cov_2char[((buf_perm[i + 1] & 0xf) << 2) |
|
|
(buf_perm[i + 2] >> 6)];
|
|
*output++ = cov_2char[((buf_perm[i] & 3) << 4) |
|
|
(buf_perm[i + 1] >> 4)];
|
|
*output++ = cov_2char[buf_perm[i] >> 2];
|
|
}
|
|
assert(i == 15);
|
|
*output++ = cov_2char[buf_perm[i] & 0x3f];
|
|
*output++ = cov_2char[buf_perm[i] >> 6];
|
|
*output = 0;
|
|
assert(strlen(out_buf) < sizeof(out_buf));
|
|
}
|
|
|
|
return out_buf;
|
|
}
|
|
# endif
|
|
|
|
static int do_passwd(int passed_salt, char **salt_p, char **salt_malloc_p,
|
|
char *passwd, BIO *out, int quiet, int table,
|
|
int reverse, size_t pw_maxlen, int usecrypt, int use1,
|
|
int useapr1)
|
|
{
|
|
char *hash = NULL;
|
|
|
|
assert(salt_p != NULL);
|
|
assert(salt_malloc_p != NULL);
|
|
|
|
/* first make sure we have a salt */
|
|
if (!passed_salt) {
|
|
# ifndef OPENSSL_NO_DES
|
|
if (usecrypt) {
|
|
if (*salt_malloc_p == NULL) {
|
|
*salt_p = *salt_malloc_p = app_malloc(3, "salt buffer");
|
|
}
|
|
if (RAND_bytes((unsigned char *)*salt_p, 2) <= 0)
|
|
goto end;
|
|
(*salt_p)[0] = cov_2char[(*salt_p)[0] & 0x3f]; /* 6 bits */
|
|
(*salt_p)[1] = cov_2char[(*salt_p)[1] & 0x3f]; /* 6 bits */
|
|
(*salt_p)[2] = 0;
|
|
# ifdef CHARSET_EBCDIC
|
|
ascii2ebcdic(*salt_p, *salt_p, 2); /* des_crypt will convert back
|
|
* to ASCII */
|
|
# endif
|
|
}
|
|
# endif /* !OPENSSL_NO_DES */
|
|
|
|
# ifndef NO_MD5CRYPT_1
|
|
if (use1 || useapr1) {
|
|
int i;
|
|
|
|
if (*salt_malloc_p == NULL) {
|
|
*salt_p = *salt_malloc_p = app_malloc(9, "salt buffer");
|
|
}
|
|
if (RAND_bytes((unsigned char *)*salt_p, 8) <= 0)
|
|
goto end;
|
|
|
|
for (i = 0; i < 8; i++)
|
|
(*salt_p)[i] = cov_2char[(*salt_p)[i] & 0x3f]; /* 6 bits */
|
|
(*salt_p)[8] = 0;
|
|
}
|
|
# endif /* !NO_MD5CRYPT_1 */
|
|
}
|
|
|
|
assert(*salt_p != NULL);
|
|
|
|
/* truncate password if necessary */
|
|
if ((strlen(passwd) > pw_maxlen)) {
|
|
if (!quiet)
|
|
/*
|
|
* XXX: really we should know how to print a size_t, not cast it
|
|
*/
|
|
BIO_printf(bio_err,
|
|
"Warning: truncating password to %u characters\n",
|
|
(unsigned)pw_maxlen);
|
|
passwd[pw_maxlen] = 0;
|
|
}
|
|
assert(strlen(passwd) <= pw_maxlen);
|
|
|
|
/* now compute password hash */
|
|
# ifndef OPENSSL_NO_DES
|
|
if (usecrypt)
|
|
hash = DES_crypt(passwd, *salt_p);
|
|
# endif
|
|
# ifndef NO_MD5CRYPT_1
|
|
if (use1 || useapr1)
|
|
hash = md5crypt(passwd, (use1 ? "1" : "apr1"), *salt_p);
|
|
# endif
|
|
assert(hash != NULL);
|
|
|
|
if (table && !reverse)
|
|
BIO_printf(out, "%s\t%s\n", passwd, hash);
|
|
else if (table && reverse)
|
|
BIO_printf(out, "%s\t%s\n", hash, passwd);
|
|
else
|
|
BIO_printf(out, "%s\n", hash);
|
|
return 0;
|
|
|
|
end:
|
|
return 1;
|
|
}
|
|
#else
|
|
|
|
int passwd_main(int argc, char **argv)
|
|
{
|
|
BIO_printf(bio_err, "Program not available.\n");
|
|
return (1);
|
|
}
|
|
#endif
|