mirror of
https://github.com/hashcat/hashcat.git
synced 2024-11-15 20:39:17 +00:00
126 lines
3.2 KiB
Perl
126 lines
3.2 KiB
Perl
#!/usr/bin/env perl
|
|
|
|
##
|
|
## Author......: See docs/credits.txt
|
|
## License.....: MIT
|
|
##
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use Crypt::PBKDF2;
|
|
use Crypt::AuthEnc::GCM;
|
|
use MIME::Base64 qw (decode_base64 encode_base64);
|
|
|
|
sub module_constraints { [[8, 256], [64, 64], [-1, -1], [-1, -1], [-1, -1]] }
|
|
|
|
sub module_generate_hash
|
|
{
|
|
my $word = shift;
|
|
my $salt = shift;
|
|
my $iv = shift // random_hex_string (32);
|
|
my $ct = shift;
|
|
|
|
my $ct_min_len = 30;
|
|
my $ct_max_len = 3136;
|
|
|
|
my $kdf = Crypt::PBKDF2->new
|
|
(
|
|
hasher => Crypt::PBKDF2->hasher_from_algorithm ('HMACSHA2', 256),
|
|
iterations => 10000,
|
|
output_len => 32
|
|
);
|
|
|
|
my $salt_bin = pack ("H*", $salt);
|
|
|
|
my $key = $kdf->PBKDF2 ($salt_bin, $word);
|
|
|
|
my $iv_bin = pack ("H*", $iv);
|
|
|
|
my $pt;
|
|
|
|
if (defined $ct)
|
|
{
|
|
my $ct_bin = pack ("H*", $ct);
|
|
|
|
my $data_bin = substr ($ct_bin, 0, -16);
|
|
my $tag_bin = substr ($ct_bin, -16);
|
|
|
|
my $aes = Crypt::AuthEnc::GCM->new ("AES", $key, $iv_bin);
|
|
|
|
$pt = $aes->decrypt_add ($data_bin);
|
|
|
|
my $result_tag = $aes->decrypt_done ($tag_bin);
|
|
|
|
if ($result_tag == 1)
|
|
{
|
|
## correct password
|
|
}
|
|
else
|
|
{
|
|
# generate plaintext
|
|
|
|
# TODO now the data is all 0xff, would be better to have it mimic the same structure as the reference data:
|
|
# [{"type":"HD Key Tree","data":{"mnemonic":[112,97,121,109,101,110,116,32,117,112,115,101,116,32,109,101,116,97,108,32,99,104,97,112,116,101,114,32,114,117,110,32,97,100,109,105,116,32,109,101,97,115,117,114,101,32,114,101,109,105,110,100,32,115,117,112,112,108,121,32,104,111,112,101,32,101,110,101,109,121,32,104,101,100,103,101,104,111,103],"numberOfAccounts":1,"hdPath":"m/44'/60'/0'/0"}}]
|
|
# generated from tools/2hashcat_tests/metamask2hashcat-test.py
|
|
$pt = "\xff" x ($ct_min_len + int (rand ($ct_max_len - $ct_min_len)) + 1);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$pt = "\xff" x ($ct_min_len + int (rand ($ct_max_len - $ct_min_len)) + 1);
|
|
}
|
|
|
|
my $aes = Crypt::AuthEnc::GCM->new ("AES", $key, $iv_bin);
|
|
|
|
my $ct_bin = $aes->encrypt_add ($pt);
|
|
|
|
my $tag_bin = $aes->encrypt_done ();
|
|
|
|
my $hash = sprintf ('$metamask$%s$%s$%s', encode_base64 ($salt_bin, ""), encode_base64 ($iv_bin, ""), encode_base64 ($ct_bin . $tag_bin, ""));
|
|
|
|
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, 10) eq '$metamask$';
|
|
|
|
my (undef, $signature, $salt, $iv, $ct) = split '\$', $hash;
|
|
|
|
return unless defined $signature;
|
|
return unless defined $salt;
|
|
return unless defined $iv;
|
|
return unless defined $ct;
|
|
|
|
my $salt_bin = decode_base64 ($salt);
|
|
my $iv_bin = decode_base64 ($iv);
|
|
my $ct_bin = decode_base64 ($ct);
|
|
|
|
return unless length $salt_bin == 32;
|
|
return unless length $iv_bin == 16;
|
|
|
|
my $ct_len = length ($ct_bin);
|
|
my $ct_min_len = 30;
|
|
my $ct_max_len = 3136;
|
|
|
|
return unless ($ct_len >= $ct_min_len && $ct_len <= $ct_max_len);
|
|
|
|
my $word_packed = pack_if_HEX_notation ($word);
|
|
|
|
my $new_hash = module_generate_hash ($word_packed, unpack ("H*", $salt_bin), unpack ("H*", $iv_bin), unpack ("H*", $ct_bin));
|
|
|
|
return ($new_hash, $word);
|
|
}
|
|
|
|
1;
|