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hashcat/tools/test_modules/m22500.pm

193 lines
4.0 KiB
Perl

#!/usr/bin/env perl
##
## Author......: See docs/credits.txt
## License.....: MIT
##
use strict;
use warnings;
use Digest::MD5 qw (md5);
use Crypt::CBC;
sub module_constraints { [[0, 256], [8, 8], [0, 31], [8, 8], [-1, -1]] }
my $BASE58_CHARS = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
my $BITCOINJ_CHARS = ".abcdefghijklmnopqrstuvwxyz";
sub module_generate_hash
{
my $word = shift;
my $salt = shift;
my $data = shift;
my $word_salt = $word . $salt;
my $key1 = md5 ( $word_salt);
my $key2 = md5 ($key1 . $word_salt);
my $iv = md5 ($key2 . $word_salt);
my $aes_cbc = Crypt::CBC->new ({
cipher => "Crypt::Rijndael",
iv => $iv,
key => $key1 . $key2,
keysize => 32,
literal_key => 1,
header => "none",
padding => "none"
});
my $type = 0; # 0: MultiBit Classic MD5, 1: KnCGroup Bitcoin Wallet, 2: bitcoinj
my $key = "";
if (! defined ($data))
{
$type = random_number (0, 2);
if ($type == 0)
{
my @chars_at_start = ('K', 'L', 'Q', '5');
$data = $chars_at_start[random_number (0, scalar (@chars_at_start) - 1)];
for (my $i = 1; $i < 32; $i++)
{
$data .= substr ($BASE58_CHARS, random_number (0, length ($BASE58_CHARS) - 1), 1);
}
}
elsif ($type == 1)
{
$data = "\n";
$data .= chr (random_number (0, 127));
$data .= "org.";
for (my $i = 6; $i < 32; $i++)
{
$data .= substr ($BITCOINJ_CHARS, random_number (0, length ($BITCOINJ_CHARS) - 1), 1);
}
}
elsif ($type == 2)
{
# Full string would be:
# "# KEEP YOUR PRIVATE KEYS SAFE! Anyone who can read this can spend your Bitcoins."
$data = '# KEEP YOUR PRIVATE KEYS SAFE! A';
}
$key = $aes_cbc->encrypt ($data);
}
else
{
$key = $aes_cbc->decrypt ($data);
# verification step:
# first char of $key must be K, L, Q, 5, # or \n
my $char_at_start = substr ($key, 0, 1);
if (($char_at_start eq 'K') ||
($char_at_start eq 'L') ||
($char_at_start eq 'Q') ||
($char_at_start eq '5'))
{
my $error = 0;
for (my $i = 1; $i < 32; $i++) # start with 1 (we already checked first char)
{
my $c = substr ($key, $i, 1);
my $idx = index ($BASE58_CHARS, $c);
next if ($idx >= 0);
$error = 1;
last;
}
if ($error == 0)
{
$key = $data;
}
}
elsif ($char_at_start eq "\n") # bitcoinj
{
my $second_char = substr ($key, 1, 1);
if (ord ($second_char) < 128)
{
if (substr ($key, 2, 4) eq "org.")
{
my $error = 0;
for (my $i = 6; $i < 14; $i++) # start with 6 (we already checked first chars)
{
my $c = substr ($key, $i, 1);
my $idx = index ($BITCOINJ_CHARS, $c);
next if ($idx >= 0);
$error = 1;
last;
}
if ($error == 0)
{
$key = $data;
}
}
}
}
elsif ($char_at_start eq '#') # KnCGroup Bitcoin Wallet
{
if (substr ($key, 0, 16) eq '# KEEP YOUR PRIV')
{
$key = $data;
}
}
}
my $hash = sprintf ("\$multibit\$1*%s*%s", unpack ("H*", $salt), unpack ("H*", $key));
return $hash;
}
sub module_verify_hash
{
my $line = shift;
my $idx = index ($line, ':');
return unless $idx >= 0;
my $hash = substr ($line, 0, $idx);
my $word = substr ($line, $idx + 1);
return unless substr ($hash, 0, 12) eq '$multibit$1*';
$idx = index ($hash, '*', 12);
return unless $idx == 28;
my $salt_hex = substr ($hash, 12, 16); # 28 - 12 = 16
my $data_hex = substr ($hash, 29);
return unless length ($salt_hex) == 16;
return unless length ($data_hex) == 64;
my $salt = pack ("H*", $salt_hex);
my $data = pack ("H*", $data_hex);
my $word_packed = pack_if_HEX_notation ($word);
my $new_hash = module_generate_hash ($word_packed, $salt, $data);
return ($new_hash, $word);
}
1;