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54 lines
936 B
54 lines
936 B
#!/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 Crypt::Mode::ECB;
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sub module_constraints { [[0, 16], [32, 32], [-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 $salt = shift;
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my $cipher = Crypt::Mode::ECB->new ('AES', 0);
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my $key_bin = $word;
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my $pt_bin = pack ("H*", $salt);
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$key_bin .= "\x00" x 16;
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$key_bin = substr ($key_bin, 0, 16);
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my $ct_bin = $cipher->encrypt ($pt_bin, $key_bin);
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my $hash = sprintf ("%s:%s", unpack ("H*", $ct_bin), $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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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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1;
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