mirror of
https://github.com/hashcat/hashcat.git
synced 2024-11-23 00:28:11 +00:00
78 lines
1.5 KiB
Perl
78 lines
1.5 KiB
Perl
#!/usr/bin/env perl
|
|
|
|
##
|
|
## Author......: See docs/credits.txt
|
|
## License.....: MIT
|
|
##
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use Crypt::Eksblowfish::Bcrypt qw (bcrypt en_base64);
|
|
use MIME::Base64 qw (decode_base64);
|
|
use Digest::SHA1 qw (sha1_hex);
|
|
|
|
sub module_constraints { [[0, 256], [16, 16], [-1, -1], [-1, -1], [-1, -1]] }
|
|
|
|
sub module_generate_hash
|
|
{
|
|
my $word = shift;
|
|
my $salt = shift;
|
|
my $iter = shift;
|
|
|
|
my $cost = "05";
|
|
|
|
if (length ($iter))
|
|
{
|
|
$cost = $iter;
|
|
}
|
|
|
|
my $sha1_word = sha1_hex ($word);
|
|
|
|
my $hash = bcrypt ($sha1_word, sprintf ('$2a$%s$%s$', $cost, en_base64 ($salt)));
|
|
|
|
return $hash;
|
|
}
|
|
|
|
sub module_verify_hash
|
|
{
|
|
my $line = shift;
|
|
|
|
my $index1 = index ($line, ":", 33);
|
|
|
|
return if $index1 < 1;
|
|
|
|
my $hash = substr ($line, 0, $index1);
|
|
my $word = substr ($line, $index1 + 1);
|
|
|
|
my $index2 = index ($hash, "\$", 4);
|
|
|
|
my $iter = substr ($hash, 4, $index2 - 4);
|
|
|
|
my $plain_base64 = substr ($hash, $index2 + 1, 22);
|
|
|
|
# base64 mapping
|
|
|
|
my $base64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
|
my $itoa64_2 = "./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
|
|
|
|
my $encoded = "";
|
|
|
|
for (my $i = 0; $i < length ($plain_base64); $i++)
|
|
{
|
|
my $char = substr ($plain_base64, $i, 1);
|
|
|
|
$encoded .= substr ($base64, index ($itoa64_2, $char), 1);
|
|
}
|
|
|
|
my $salt = decode_base64 ($encoded);
|
|
|
|
my $word_packed = pack_if_HEX_notation ($word);
|
|
|
|
my $new_hash = module_generate_hash ($word_packed, $salt, $iter);
|
|
|
|
return ($new_hash, $word);
|
|
}
|
|
|
|
1;
|