mirror of
https://github.com/hashcat/hashcat.git
synced 2024-11-18 06:08:16 +00:00
149 lines
3.3 KiB
Perl
149 lines
3.3 KiB
Perl
#!/usr/bin/env perl
|
|
|
|
##
|
|
## Author......: See docs/credits.txt
|
|
## License.....: MIT
|
|
##
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use Crypt::PBKDF2;
|
|
use MIME::Base64 qw (encode_base64 decode_base64);
|
|
|
|
sub module_constraints { [[0, 256], [1, 15], [-1, -1], [-1, -1], [-1, -1]] }
|
|
|
|
sub module_generate_hash
|
|
{
|
|
my $word = shift;
|
|
my $salt = shift;
|
|
my $iterations = shift // 1000;
|
|
my $out_len = shift // 32;
|
|
|
|
#
|
|
# call PHP here - WTF
|
|
#
|
|
|
|
# sanitize $word_buf and $salt_buf:
|
|
|
|
my $word_buf_base64 = encode_base64 ($word, "");
|
|
my $salt_buf_base64 = encode_base64 ($salt, "");
|
|
|
|
# sanitize lenghs
|
|
|
|
$out_len = int ($out_len);
|
|
|
|
# output is in hex encoding, otherwise it could be screwed (but shouldn't)
|
|
|
|
my $php_code = <<'END_CODE';
|
|
|
|
function pbkdf2 ($algorithm, $password, $salt, $count, $key_length, $raw_output = false)
|
|
{
|
|
$algorithm = strtolower ($algorithm);
|
|
|
|
if (! in_array ($algorithm, hash_algos (), true))
|
|
{
|
|
trigger_error ("PBKDF2 ERROR: Invalid hash algorithm.", E_USER_ERROR);
|
|
}
|
|
|
|
if ($count <= 0 || $key_length <= 0)
|
|
{
|
|
trigger_error ("PBKDF2 ERROR: Invalid parameters.", E_USER_ERROR);
|
|
}
|
|
|
|
if (function_exists ("hash_pbkdf2"))
|
|
{
|
|
if (!$raw_output)
|
|
{
|
|
$key_length = $key_length * 2;
|
|
}
|
|
|
|
return hash_pbkdf2 ($algorithm, $password, $salt, $count, $key_length, $raw_output);
|
|
}
|
|
|
|
$hash_length = strlen (hash ($algorithm, "", true));
|
|
$block_count = ceil ($key_length / $hash_length);
|
|
|
|
$output = "";
|
|
|
|
for ($i = 1; $i <= $block_count; $i++)
|
|
{
|
|
$last = $salt . pack ("N", $i);
|
|
|
|
$last = $xorsum = hash_hmac ($algorithm, $last, $password, true);
|
|
|
|
for ($j = 1; $j < $count; $j++)
|
|
{
|
|
$xorsum ^= ($last = hash_hmac ($algorithm, $last, $password, true));
|
|
}
|
|
|
|
$output .= $xorsum;
|
|
}
|
|
|
|
if ($raw_output)
|
|
{
|
|
return substr ($output, 0, $key_length);
|
|
}
|
|
else
|
|
{
|
|
return bin2hex (substr ($output, 0, $key_length));
|
|
}
|
|
}
|
|
|
|
print pbkdf2 ("md5", base64_decode ("$word_buf_base64"), base64_decode ("$salt_buf_base64"), $iterations, $out_len, False);
|
|
|
|
END_CODE
|
|
|
|
# replace with these command line arguments
|
|
|
|
$php_code =~ s/\$word_buf_base64/$word_buf_base64/;
|
|
$php_code =~ s/\$salt_buf_base64/$salt_buf_base64/;
|
|
$php_code =~ s/\$iterations/$iterations/;
|
|
$php_code =~ s/\$out_len/$out_len/;
|
|
|
|
my $php_output = `php -r '$php_code'`;
|
|
|
|
my $hash_buf = pack ("H*", $php_output);
|
|
|
|
$hash_buf = encode_base64 ($hash_buf, "");
|
|
|
|
my $base64_salt_buf = encode_base64 ($salt, "");
|
|
|
|
my $hash = sprintf ("md5:%i:%s:%s", $iterations, $base64_salt_buf, $hash_buf);
|
|
|
|
return $hash;
|
|
}
|
|
|
|
sub module_verify_hash
|
|
{
|
|
my $line = shift;
|
|
|
|
my ($digest, $word) = split (/:([^:]+)$/, $line);
|
|
|
|
return unless defined $digest;
|
|
return unless defined $word;
|
|
|
|
my @data = split (':', $digest);
|
|
|
|
return unless scalar (@data) == 4;
|
|
|
|
my $signature = shift @data;
|
|
|
|
return unless ($signature eq 'md5');
|
|
|
|
my $iterations = int (shift @data);
|
|
|
|
my $salt = decode_base64 (shift @data);
|
|
my $hash = decode_base64 (shift @data);
|
|
|
|
my $out_len = length ($hash);
|
|
|
|
my $word_packed = pack_if_HEX_notation ($word);
|
|
|
|
my $new_hash = module_generate_hash ($word_packed, $salt, $iterations, $out_len);
|
|
|
|
return ($new_hash, $word);
|
|
}
|
|
|
|
1;
|