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Modded test, however unsure of how to specify only HEX input or not

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Cablethief 2021-07-15 15:56:39 +02:00
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tools/test_modules/m27100.pm Normal file
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#!/usr/bin/env perl
##
## Author......: See docs/credits.txt
## License.....: MIT
##
use strict;
use warnings;
use Digest::HMAC qw (hmac hmac_hex);
use Digest::MD5 qw (md5);
use Encode qw (encode);
sub module_constraints { [[32, 32], [32, 32], [32, 32], [0, 27], [-1, -1]] }
sub module_generate_hash
{
my $word = shift;
my $user = shift;
my $user_len = length $user;
my $domain_len = 27 - $user_len;
my $domain = shift // random_string ($domain_len);
my $srv_ch = shift // random_hex_string (2 * 8);
my $cli_ch = shift // random_client_challenge ();
my $b_srv_ch = pack ('H*', $srv_ch);
my $b_cli_ch = pack ('H*', $cli_ch);
# my $nthash = pack_if_HEX_notation ($word);
my $nthash = pack ("H*", $word);
my $identity = encode ('UTF-16LE', uc ($user) . $domain);
my $digest = hmac_hex ($b_srv_ch . $b_cli_ch, hmac ($identity, $nthash, \&md5, 64), \&md5, 64);
my $hash = sprintf ("%s::%s:%s:%s:%s", $user, $domain, $srv_ch, $digest, $cli_ch);
return $hash;
}
sub module_verify_hash
{
my $line = shift;
my $user;
my $domain;
my $srv_ch;
my $cli_ch;
my $word;
my $hash;
my $index1 = index ($line, '::');
my $index2 = index ($line, ':', $index1 + 2);
my $index3 = index ($line, ':', $index2 + 3 + 16 + 32);
return if $index1 eq -1;
return if $index2 eq -1;
return if $index3 eq -1;
$hash = substr ($line, 0, $index3);
$user = substr ($line, 0, $index1);
$domain = substr ($line, $index1 + 2, $index2 - $index1 - 2);
$srv_ch = substr ($line, $index2 + 1, 16);
$cli_ch = substr ($line, $index2 + 3 + 16 + 32, $index3 - $index2 - 3 - 16 - 32);
$word = substr ($line, $index3 + 1);
my $word_packed = pack_if_HEX_notation ($word);
my $new_hash = module_generate_hash ($word_packed, $user, $domain, $srv_ch, $cli_ch);
return ($new_hash, $word);
}
sub random_client_challenge
{
my $ch;
$ch .= '0101000000000000';
$ch .= random_hex_string (2 * 16);
$ch .= '00000000';
$ch .= random_hex_string (2 * random_count (20));
$ch .= '00';
return $ch;
}
1;