2018-12-20 18:18:06 +00:00
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#!/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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2018-12-21 08:10:23 +00:00
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use warnings;
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2018-12-20 18:18:06 +00:00
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use Digest::SHA qw (sha1_hex);
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2019-02-26 20:20:07 +00:00
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sub module_constraints { [[0, 256], [0, 256], [0, 55], [0, 55], [0, 55]] }
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2018-12-23 17:15:53 +00:00
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2018-12-20 18:18:06 +00:00
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sub module_generate_hash
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{
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my $word = shift;
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2018-12-23 17:15:53 +00:00
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my $salt = shift;
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my $digest = sha1_hex ($salt . $word);
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2018-12-20 18:18:06 +00:00
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2018-12-23 17:15:53 +00:00
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my $hash = sprintf ("%s:%s", $digest, $salt);
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2018-12-20 18:18:06 +00:00
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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 $line = shift;
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2018-12-21 11:16:11 +00:00
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my ($hash, $salt, $word) = split (':', $line);
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2018-12-20 18:18:06 +00:00
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return unless defined $hash;
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return unless defined $salt;
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return unless defined $word;
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2018-12-27 14:49:18 +00:00
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my $word_packed = pack_if_HEX_notation ($word);
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2018-12-20 18:18:06 +00:00
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2018-12-27 14:49:18 +00:00
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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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2018-12-20 18:18:06 +00:00
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}
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1;
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