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88 lines
1.4 KiB
Perl
88 lines
1.4 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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sub module_constraints { [[0, 255], [0, 16], [0, 15], [0, 16], [-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;
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my $iter = shift;
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my $hash_buf;
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if (defined $iter)
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{
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$hash_buf = crypt ($word, "\$6\$rounds=$iter\$$salt\$");
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}
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else
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{
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$hash_buf = crypt ($word, "\$6\$$salt\$");
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}
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my $hash = sprintf ("%s", $hash_buf);
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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, $word) = split (':', $line);
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return unless defined $hash;
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return unless defined $word;
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my $index1 = index ($hash, ',', 1);
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my $index2 = index ($hash, '$', 1);
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if ($index1 != -1)
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{
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if ($index1 < $index2)
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{
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$index2 = $index1;
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}
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}
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$index2++;
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# rounds= if available
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my $iter = 0;
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if (substr ($hash, $index2, 7) eq "rounds=")
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{
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my $old_index = $index2;
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$index2 = index ($hash, '$', $index2 + 1);
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return if $index2 < 1;
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$iter = substr ($hash, $old_index + 7, $index2 - $old_index - 7);
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$index2++;
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}
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# get salt
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my $index3 = rindex ($hash, '$');
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return if $index3 < 1;
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my $salt = substr ($hash, $index2, $index3 - $index2);
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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, $iter);
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return ($new_hash, $word);
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}
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1;
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