mirror of
https://github.com/hashcat/hashcat.git
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140 lines
2.8 KiB
Perl
140 lines
2.8 KiB
Perl
#!/usr/bin/env perl
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##
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## Author......: See docs/credits.txt
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## License.....: MIT
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##
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use strict;
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use warnings;
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use Digest::SHA qw (sha256);
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use Crypt::CBC;
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sub module_constraints { [[0, 255], [-1, -1], [0, 55], [-1, -1], [-1, -1]] }
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sub module_generate_hash
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{
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my $word = shift;
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my $iv = shift || random_hex_string (32);
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my $salt_type = shift || 1;
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my $plain_bin = shift;
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if ($salt_type ne "1") { die "currently only salt_type 1 supported\n"; }
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my $key_bin = sha256 (sha256 ($word));
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my $iv_bin = pack ("H*", $iv);
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my $cipher = Crypt::CBC->new ({
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key => $key_bin,
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cipher => "Crypt::Rijndael",
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iv => $iv_bin,
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literal_key => 1,
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header => "none",
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keysize => 32,
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padding => "null",
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});
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if (defined $plain_bin)
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{
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my $encrypted_bin = pack ("H*", $plain_bin);
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my $test = $cipher->decrypt ($encrypted_bin);
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if ($test =~ /^[0-9a-f]+$/)
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{
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$plain_bin = $test;
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}
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else
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{
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$plain_bin = "\xff" x 16;
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}
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}
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else
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{
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my $plain = "30313233343536373839616263646566";
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$plain_bin = pack ("H*", $plain);
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}
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my $encrypted_bin = $cipher->encrypt ($plain_bin);
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my $encrypted = unpack ("H*", $encrypted_bin);
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my $hash = sprintf ("\$electrum\$%d*%s*%s", $salt_type, $iv, $encrypted);
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return $hash;
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}
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sub module_verify_hash
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{
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my $line = shift;
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my ($hash, $word) = split (':', $line);
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return unless defined $hash;
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return unless defined $word;
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my @data = split (/\*/, $hash);
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return unless scalar @data == 3;
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my ($mode, $iv, $encrypted) = @data;
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my (undef, $signature, $salt_type) = split ('\$', $mode);
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return unless ($signature eq "electrum");
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my $word_packed = pack_if_HEX_notation ($word);
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my $new_hash = module_generate_hash ($word_packed, $iv, $salt_type, $encrypted);
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return ($new_hash, $word);
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}
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sub get_random_jwt_salt
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{
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my @hashes =
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(
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"HS256",
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#"HS384", #this is support in hashcat, but commented out here to prevent mixed hash output files in single mode
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#"HS512", #this is support in hashcat, but commented out here to prevent mixed hash output files in single mode
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#"RS256", #not supported by hashcat
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#"RS384",
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#"RS512",
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#"PS256",
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#"PS384",
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#"PS512",
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#"ES256",
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#"ES384",
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#"ES512",
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);
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my $rnd = random_number (0, scalar @hashes - 1);
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my $hash = $hashes[$rnd];
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my $header =
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{
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"alg" => $hash
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};
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my $random_key = random_number (1, 100000000);
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my $random_val = random_number (1, 100000000);
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my $payload =
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{
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$random_key => $random_val
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};
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my $header_json = encode_json ($header);
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my $payload_json = encode_json ($payload);
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my $header_base64 = encode_base64url ($header_json, "");
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my $payload_base64 = encode_base64url ($payload_json, "");
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return $header_base64 . "." . $payload_base64;
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}
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1; |