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47 lines
879 B
Perl
47 lines
879 B
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::MD5 qw (md5_hex);
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sub module_constraints { [[0, 255], [0, 255], [-1, -1], [-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 $salt1 = shift;
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my $salt2 = shift || random_numeric_string (128);
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my $digest = md5_hex ($salt1 . uc(md5_hex ($salt2 . $word)));
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my $hash = sprintf ("%s:%s:%s", $digest, $salt1, $salt2);
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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, $salt1, $salt2, $word) = split (':', $line);
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return unless defined $hash;
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return unless defined $salt1;
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return unless defined $salt2;
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return unless defined $word;
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my $word_packed = pack_if_HEX_notation ($word);
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my $new_hash = module_generate_hash ($word_packed, $salt1, $salt2);
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return ($new_hash, $word);
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}
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1;
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