mirror of
https://github.com/hashcat/hashcat
synced 2024-12-09 02:13:10 +01:00
91 lines
1.9 KiB
Perl
91 lines
1.9 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 (sha1);
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use Digest::HMAC qw (hmac hmac_hex);
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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 $salt = shift || get_random_ike_salt ();
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my @salt_arr = split (":", $salt);
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my $msg = pack ("H*", $salt_arr[0] . $salt_arr[1] . $salt_arr[2] . $salt_arr[3] . $salt_arr[4] . $salt_arr[5]);
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my $nr = pack ("H*", $salt_arr[6] . $salt_arr[7]);
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my $digest = hmac ($nr , $word, \&sha1, 64);
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$digest = hmac_hex ($msg, $digest, \&sha1, 64);
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my $hash = sprintf ("%s:%s", $salt, $digest);
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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 @data = split (':', $line);
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return unless scalar @data == 10;
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my $hash = $data[0];
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my $salt = join ('', @data[1 .. 8]);
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my $word = $data[9];
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my $word_packed = pack_if_HEX_notation ($word);
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my $new_hash = module_generate_hash ($word_packed, $salt);
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return ($new_hash, $word);
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}
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sub get_random_ike_salt
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{
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my $nr_buf = "";
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for (my $i = 0; $i < 40; $i++)
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{
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$nr_buf .= get_random_chr (0, 0xff);
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}
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my $msg_buf = "";
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for (my $i = 0; $i < 440; $i++)
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{
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$msg_buf .= get_random_chr (0, 0xff);
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}
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my $nr_buf_hex = unpack ("H*", $nr_buf);
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my $msg_buf_hex = unpack ("H*", $msg_buf);
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my $salt_buf = sprintf ("%s:%s:%s:%s:%s:%s:%s:%s", substr ($msg_buf_hex, 0, 256), substr ($msg_buf_hex, 256, 256), substr ($msg_buf_hex, 512, 16), substr ($msg_buf_hex, 528, 16), substr ($msg_buf_hex, 544, 320), substr ($msg_buf_hex, 864, 16), substr ($nr_buf_hex, 0, 40), substr ($nr_buf_hex, 40, 40));
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return $salt_buf;
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}
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sub get_random_chr
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{
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return chr get_random_num (@_);
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}
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sub get_random_num
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{
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my $min = shift;
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my $max = shift;
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return int ((rand ($max - $min)) + $min);
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}
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1;
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