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64 lines
1.1 KiB
64 lines
1.1 KiB
#!/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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my $itoa64_1 = "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
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use strict;
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use warnings;
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use Authen::Passphrase::PHPass;
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sub module_constraints { [[0, 256], [8, 8], [0, 55], [8, 8], [-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 $cost = 11;
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if (length ($iter))
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{
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$cost = $iter;
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}
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my $ppr = Authen::Passphrase::PHPass->new
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(
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cost => $cost,
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salt => $salt,
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passphrase => $word,
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);
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my $hash_buf = $ppr->as_rfc2307;
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return substr ($hash_buf, 7);
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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 $salt = substr ($hash, 4, 8);
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# iterations = 2 ^ cost (where cost == $iter)
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my $iter = index ($itoa64_1, substr ($hash, 3, 1));
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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, $iter);
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return (substr ($hash, 0, 3) . substr ($new_hash, 3), $word);
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}
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1;
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