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129 lines
2.8 KiB
Perl
129 lines
2.8 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::CBC;
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use Digest::SHA qw (sha1);
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use Encode;
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sub module_constraints { [[0, 19], [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 $iter = shift // 100000;
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my $param = shift;
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my $salt_bin = pack ("H*", $salt);
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my $tmp = sha1 ($salt_bin . encode ("UTF-16LE", $word));
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for (my $i = 0; $i < $iter; $i++)
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{
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my $num32 = pack ("L", $i);
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$tmp = sha1 ($num32 . $tmp);
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}
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my $encryptedVerifierHashInputBlockKey = "\xfe\xa7\xd2\x76\x3b\x4b\x9e\x79";
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my $encryptedVerifierHashValueBlockKey = "\xd7\xaa\x0f\x6d\x30\x61\x34\x4e";
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my $final1 = sha1 ($tmp . $encryptedVerifierHashInputBlockKey);
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my $final2 = sha1 ($tmp . $encryptedVerifierHashValueBlockKey);
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my $key1 = substr ($final1, 0, 16);
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my $key2 = substr ($final2, 0, 16);
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my $cipher1 = Crypt::CBC->new ({
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key => $key1,
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cipher => "Crypt::Rijndael",
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iv => $salt_bin,
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literal_key => 1,
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header => "none",
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keysize => 16,
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padding => "null",
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});
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my $cipher2 = Crypt::CBC->new ({
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key => $key2,
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cipher => "Crypt::Rijndael",
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iv => $salt_bin,
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literal_key => 1,
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header => "none",
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keysize => 16,
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padding => "null",
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});
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my $encdata;
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if (defined $param)
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{
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$encdata = $cipher1->decrypt (pack ("H*", $param));
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}
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else
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{
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$encdata = "A" x 16; ## can be anything
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}
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my $data1_buf = $encdata;
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my $data2_buf = sha1 (substr ($data1_buf, 0, 16));
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my $encrypted1 = unpack ("H*", $cipher1->encrypt ($data1_buf));
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my $encrypted2 = unpack ("H*", $cipher2->encrypt ($data2_buf));
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$encrypted2 = substr ($encrypted2, 0, 64);
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my $hash = sprintf ("\$office\$*%d*%d*%d*%d*%s*%s*%s", 2010, $iter, 128, 16, $salt, $encrypted1, $encrypted2);
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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 $line = shift;
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# Office 2010
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my ($hash_in, $word) = split ":", $line;
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return unless defined $hash_in;
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return unless defined $word;
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my @data = split /\*/, $hash_in;
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return unless scalar @data == 8;
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return unless (shift @data eq '$office$');
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return unless (shift @data eq '2010');
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my $iter = shift @data;
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return unless (shift @data eq '128');
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return unless (shift @data eq '16');
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return unless (length $data[0] == 32);
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return unless (length $data[1] == 32);
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return unless (length $data[2] == 64);
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my $salt = shift @data;
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#my $iter = shift @data;
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my $param = shift @data;
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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, $iter, $param);
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return ($new_hash, $word);
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}
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1;
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