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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sub module_generate_hash
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{
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my $word = shift;
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my $salt = shift // random_numeric_string (int (rand 16));
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my $hash = sha1_hex ($salt . $word) . ":$salt";
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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, $salt, $word) = split (":", $line);
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return unless defined $hash;
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return unless defined $salt;
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return unless defined $word;
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$word = pack_if_HEX_notation ($word);
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my $new_hash = module_generate_hash ($word, $salt);
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return unless $new_hash eq "$hash:$salt";
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return $new_hash;
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}
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1;
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