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3eb94884fe
When reusing kernels, tmp and esalt structure must match. Renamed -m 10910 to 33900 Added unit test for -m 33900
60 lines
1.1 KiB
Perl
60 lines
1.1 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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use Crypt::PBKDF2;
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use MIME::Base64 qw (encode_base64 decode_base64);
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sub module_constraints { [[0, 256], [64, 64], [-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 $pbkdf2 = Crypt::PBKDF2->new
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(
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hasher => Crypt::PBKDF2->hasher_from_algorithm ('HMACSHA2', 256),
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iterations => 2500,
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output_len => 32
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);
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my $salt_bin = pack ("H*", $salt);
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my $digest = $pbkdf2->PBKDF2 ($salt_bin, $word);
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my $hash = sprintf ("5%s%s", $salt, unpack ("H*", $digest));
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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 $signature = substr ($hash, 0, 1);
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return unless $signature eq '5';
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my $salt = substr ($hash, 1, 64);
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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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