mirror of
https://github.com/hashcat/hashcat.git
synced 2024-11-01 13:09:11 +00:00
261 lines
6.1 KiB
Perl
261 lines
6.1 KiB
Perl
#!/usr/bin/env perl
|
|
|
|
##
|
|
## Author......: See docs/credits.txt
|
|
## License.....: MIT
|
|
##
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use Digest::SHA qw (sha512);
|
|
|
|
sub module_constraints { [[0, 255], [0, 16], [0, 15], [0, 16], [-1, -1]] }
|
|
|
|
sub module_generate_hash
|
|
{
|
|
my $word = shift;
|
|
my $salt = shift;
|
|
my $iter = shift;
|
|
|
|
my $iterations = 5000;
|
|
|
|
if (defined ($iter))
|
|
{
|
|
if ($iter > 0)
|
|
{
|
|
$iterations = int ($iter);
|
|
}
|
|
}
|
|
|
|
my $hash_buf = sha512_crypt ('$6$', $iterations, $word, $salt);
|
|
|
|
return $hash_buf;
|
|
}
|
|
|
|
sub module_verify_hash
|
|
{
|
|
my $line = shift;
|
|
|
|
my ($hash, $word) = split (':', $line);
|
|
|
|
return unless defined $hash;
|
|
return unless defined $word;
|
|
|
|
my $index1 = index ($hash, ',', 1);
|
|
my $index2 = index ($hash, '$', 1);
|
|
|
|
if ($index1 != -1)
|
|
{
|
|
if ($index1 < $index2)
|
|
{
|
|
$index2 = $index1;
|
|
}
|
|
}
|
|
|
|
$index2++;
|
|
|
|
# rounds= if available
|
|
my $iter = 0;
|
|
|
|
if (substr ($hash, $index2, 7) eq "rounds=")
|
|
{
|
|
my $old_index = $index2;
|
|
|
|
$index2 = index ($hash, '$', $index2 + 1);
|
|
|
|
next if $index2 < 1;
|
|
|
|
$iter = substr ($hash, $old_index + 7, $index2 - $old_index - 7);
|
|
|
|
$index2++;
|
|
}
|
|
|
|
# get salt
|
|
my $index3 = rindex ($hash, '$');
|
|
|
|
next if $index3 < 1;
|
|
|
|
my $salt = substr ($hash, $index2, $index3 - $index2);
|
|
|
|
my $word_packed = pack_if_HEX_notation ($word);
|
|
|
|
my $new_hash = module_generate_hash ($word_packed, $salt, $iter);
|
|
|
|
return ($new_hash, $word);
|
|
}
|
|
|
|
sub sha512_crypt
|
|
{
|
|
my $magic = shift;
|
|
my $iter = shift;
|
|
my $pass = shift;
|
|
my $salt = shift;
|
|
|
|
my $hash = ""; # hash to be returned by this function
|
|
|
|
my $final = sha512 ($pass . $salt . $pass);
|
|
|
|
$salt = substr ($salt, 0, 16);
|
|
|
|
my $tmp = $pass . $salt;
|
|
|
|
my $pass_len = length ($pass);
|
|
my $salt_len = length ($salt);
|
|
|
|
my $i;
|
|
|
|
for ($i = $pass_len; $i > 0; $i -= 16)
|
|
{
|
|
my $len = 16;
|
|
|
|
if ($i < $len)
|
|
{
|
|
$len = $i;
|
|
}
|
|
|
|
$tmp .= substr ($final, 0, $len);
|
|
}
|
|
|
|
$i = $pass_len;
|
|
|
|
while ($i > 0)
|
|
{
|
|
if ($i & 1)
|
|
{
|
|
$tmp .= $final;
|
|
}
|
|
else
|
|
{
|
|
$tmp .= $pass;
|
|
}
|
|
|
|
$i >>= 1;
|
|
}
|
|
|
|
$final = sha512 ($tmp);
|
|
|
|
# p_bytes
|
|
|
|
my $p_bytes = "";
|
|
|
|
for ($i = 0; $i < $pass_len; $i++)
|
|
{
|
|
$p_bytes .= $pass;
|
|
}
|
|
|
|
$p_bytes = sha512 ($p_bytes);
|
|
$p_bytes = substr ($p_bytes, 0, $pass_len);
|
|
|
|
# s_bytes
|
|
|
|
my $final_first_byte = ord (substr ($final, 0, 1));
|
|
|
|
my $s_bytes = "";
|
|
|
|
for ($i = 0; $i < (16 + $final_first_byte); $i++)
|
|
{
|
|
$s_bytes .= $salt;
|
|
}
|
|
|
|
$s_bytes = sha512 ($s_bytes);
|
|
$s_bytes = substr ($s_bytes, 0, $salt_len);
|
|
|
|
for ($i = 0; $i < $iter; $i++)
|
|
{
|
|
$tmp = "";
|
|
|
|
if ($i & 1)
|
|
{
|
|
$tmp .= $p_bytes;
|
|
}
|
|
else
|
|
{
|
|
$tmp .= $final;
|
|
}
|
|
|
|
if ($i % 3)
|
|
{
|
|
$tmp .= $s_bytes;
|
|
}
|
|
|
|
if ($i % 7)
|
|
{
|
|
$tmp .= $p_bytes;
|
|
}
|
|
|
|
if ($i & 1)
|
|
{
|
|
$tmp .= $final;
|
|
}
|
|
else
|
|
{
|
|
$tmp .= $p_bytes;
|
|
}
|
|
|
|
$final = sha512 ($tmp);
|
|
}
|
|
|
|
# done
|
|
# now format the output string ("hash")
|
|
|
|
my $hash_buf;
|
|
|
|
$hash .= to64 ((ord (substr ($final, 0, 1)) << 16) | (ord (substr ($final, 21, 1)) << 8) | (ord (substr ($final, 42, 1))), 4);
|
|
$hash .= to64 ((ord (substr ($final, 22, 1)) << 16) | (ord (substr ($final, 43, 1)) << 8) | (ord (substr ($final, 1, 1))), 4);
|
|
$hash .= to64 ((ord (substr ($final, 44, 1)) << 16) | (ord (substr ($final, 2, 1)) << 8) | (ord (substr ($final, 23, 1))), 4);
|
|
$hash .= to64 ((ord (substr ($final, 3, 1)) << 16) | (ord (substr ($final, 24, 1)) << 8) | (ord (substr ($final, 45, 1))), 4);
|
|
$hash .= to64 ((ord (substr ($final, 25, 1)) << 16) | (ord (substr ($final, 46, 1)) << 8) | (ord (substr ($final, 4, 1))), 4);
|
|
$hash .= to64 ((ord (substr ($final, 47, 1)) << 16) | (ord (substr ($final, 5, 1)) << 8) | (ord (substr ($final, 26, 1))), 4);
|
|
$hash .= to64 ((ord (substr ($final, 6, 1)) << 16) | (ord (substr ($final, 27, 1)) << 8) | (ord (substr ($final, 48, 1))), 4);
|
|
$hash .= to64 ((ord (substr ($final, 28, 1)) << 16) | (ord (substr ($final, 49, 1)) << 8) | (ord (substr ($final, 7, 1))), 4);
|
|
$hash .= to64 ((ord (substr ($final, 50, 1)) << 16) | (ord (substr ($final, 8, 1)) << 8) | (ord (substr ($final, 29, 1))), 4);
|
|
$hash .= to64 ((ord (substr ($final, 9, 1)) << 16) | (ord (substr ($final, 30, 1)) << 8) | (ord (substr ($final, 51, 1))), 4);
|
|
$hash .= to64 ((ord (substr ($final, 31, 1)) << 16) | (ord (substr ($final, 52, 1)) << 8) | (ord (substr ($final, 10, 1))), 4);
|
|
$hash .= to64 ((ord (substr ($final, 53, 1)) << 16) | (ord (substr ($final, 11, 1)) << 8) | (ord (substr ($final, 32, 1))), 4);
|
|
$hash .= to64 ((ord (substr ($final, 12, 1)) << 16) | (ord (substr ($final, 33, 1)) << 8) | (ord (substr ($final, 54, 1))), 4);
|
|
$hash .= to64 ((ord (substr ($final, 34, 1)) << 16) | (ord (substr ($final, 55, 1)) << 8) | (ord (substr ($final, 13, 1))), 4);
|
|
$hash .= to64 ((ord (substr ($final, 56, 1)) << 16) | (ord (substr ($final, 14, 1)) << 8) | (ord (substr ($final, 35, 1))), 4);
|
|
$hash .= to64 ((ord (substr ($final, 15, 1)) << 16) | (ord (substr ($final, 36, 1)) << 8) | (ord (substr ($final, 57, 1))), 4);
|
|
$hash .= to64 ((ord (substr ($final, 37, 1)) << 16) | (ord (substr ($final, 58, 1)) << 8) | (ord (substr ($final, 16, 1))), 4);
|
|
$hash .= to64 ((ord (substr ($final, 59, 1)) << 16) | (ord (substr ($final, 17, 1)) << 8) | (ord (substr ($final, 38, 1))), 4);
|
|
$hash .= to64 ((ord (substr ($final, 18, 1)) << 16) | (ord (substr ($final, 39, 1)) << 8) | (ord (substr ($final, 60, 1))), 4);
|
|
$hash .= to64 ((ord (substr ($final, 40, 1)) << 16) | (ord (substr ($final, 61, 1)) << 8) | (ord (substr ($final, 19, 1))), 4);
|
|
$hash .= to64 ((ord (substr ($final, 62, 1)) << 16) | (ord (substr ($final, 20, 1)) << 8) | (ord (substr ($final, 41, 1))), 4);
|
|
$hash .= to64 (ord (substr ($final, 63, 1)), 2);
|
|
|
|
if ($iter == 5000) # default
|
|
{
|
|
$hash_buf = sprintf ("%s%s\$%s", $magic, $salt , $hash);
|
|
}
|
|
else
|
|
{
|
|
$hash_buf = sprintf ("%srounds=%i\$%s\$%s", $magic, $iter, $salt , $hash);
|
|
}
|
|
|
|
return $hash_buf;
|
|
}
|
|
|
|
sub to64
|
|
{
|
|
my $v = shift;
|
|
my $n = shift;
|
|
|
|
my $itoa64 = "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
|
|
|
|
my $ret = "";
|
|
|
|
while (($n - 1) >= 0)
|
|
{
|
|
$n = $n - 1;
|
|
|
|
$ret .= substr ($itoa64, $v & 0x3f, 1);
|
|
|
|
$v = $v >> 6;
|
|
}
|
|
|
|
return $ret
|
|
}
|
|
|
|
1;
|