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hashcat/tools/test_modules/m31900.pm
red 61944481b9
Update m31900.pm
adapt mode's unit-test for longer CT sections
2023-08-29 21:50:12 +02:00

92 lines
2.1 KiB
Perl

#!/usr/bin/env perl
##
## Author......: See docs/credits.txt
## License.....: MIT
##
use strict;
use warnings;
use Crypt::PBKDF2;
use Crypt::CBC;
use MIME::Base64 qw (decode_base64 encode_base64);
sub module_constraints { [[8, 256], [16, 16], [-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 $kdf = Crypt::PBKDF2->new
(
hasher => Crypt::PBKDF2->hasher_from_algorithm ('HMACSHA2', 512),
iterations => 5000,
output_len => 32
);
my $salt_b64 = encode_base64 ($salt, "");
my $key = $kdf->PBKDF2 ($salt_b64, $word);
my $iv_bin = pack ("H*", $iv);
my $cipher = Crypt::CBC->new ({
key => $key,
cipher => "Crypt::Rijndael",
iv => $iv_bin,
literal_key => 1,
header => "none",
keysize => 32,
padding => "none"
});
my $pt = "[{\"type\":\"HD Key Tree\",\"data\":{\"mnemonic\":\"ocean hidden kidney famous rich season gloom husband spring convince attitude boy\",\"numberOfAccounts\":1,\"hdPath\":\"m/44'/60'/0'/0\"}}]";
my $ct1 = substr ($cipher->encrypt ($pt), 0, 32);
my $hash = sprintf ('$metamaskMobile$%s$%s$%s', $salt_b64, $iv, encode_base64 ($ct1, ""));
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, 16) eq '$metamaskMobile$';
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 $salt_b64 = decode_base64 ($salt);
my $iv_bin = pack ("H*", $iv);
my $ct_bin = decode_base64 ($ct);
return unless length $salt_b64 == 16;
return unless length $iv_bin == 16;
return unless length $ct_bin == 32;
my $word_packed = pack_if_HEX_notation ($word);
my $new_hash = module_generate_hash ($word_packed, $salt_b64, $iv, unpack ("H*", $ct_bin));
return ($new_hash, $word);
}
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