68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
/* Verify a passphrase.
|
|
Copyright (C) 1991-2022 Free Software Foundation, Inc.
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; either version 2
|
|
of the License, or (at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <crypt.h>
|
|
|
|
/* @samp{GNU's Not Unix} hashed using SHA-256, MD5, and DES. */
|
|
static const char hash_sha[] =
|
|
"$5$DQ2z5NHf1jNJnChB$kV3ZTR0aUaosujPhLzR84Llo3BsspNSe4/tsp7VoEn6";
|
|
static const char hash_md5[] = "$1$A3TxDv41$rtXVTUXl2LkeSV0UU5xxs1";
|
|
static const char hash_des[] = "FgkTuF98w5DaI";
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
char *phrase;
|
|
int status = 0;
|
|
|
|
/* Prompt for a passphrase. */
|
|
phrase = getpass ("Enter passphrase: ");
|
|
|
|
/* Compare against the stored hashes. Any input that begins with
|
|
@samp{GNU's No} will match the DES hash, but the other two will
|
|
only match @samp{GNU's Not Unix}. */
|
|
|
|
if (strcmp (crypt (phrase, hash_sha), hash_sha))
|
|
{
|
|
puts ("SHA: not ok");
|
|
status = 1;
|
|
}
|
|
else
|
|
puts ("SHA: ok");
|
|
|
|
if (strcmp (crypt (phrase, hash_md5), hash_md5))
|
|
{
|
|
puts ("MD5: not ok");
|
|
status = 1;
|
|
}
|
|
else
|
|
puts ("MD5: ok");
|
|
|
|
if (strcmp (crypt (phrase, hash_des), hash_des))
|
|
{
|
|
puts ("DES: not ok");
|
|
status = 1;
|
|
}
|
|
else
|
|
puts ("DES: ok");
|
|
|
|
return status;
|
|
}
|