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107 lines
2.9 KiB
107 lines
2.9 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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use strict;
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use warnings;
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use Digest::SHA qw (sha1 sha1_hex);
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sub module_constraints { [[-1, -1], [-1, -1], [0, 55], [1, 12], [0, 55]] }
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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 $theMagicArray_s =
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"\x91\xac\x51\x14\x9f\x67\x54\x43\x24\xe7\x3b\xe0\x28\x74\x7b\xc2" .
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"\x86\x33\x13\xeb\x5a\x4f\xcb\x5c\x08\x0a\x73\x37\x0e\x5d\x1c\x2f" .
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"\x33\x8f\xe6\xe5\xf8\x9b\xae\xdd\x16\xf2\x4b\x8d\x2c\xe1\xd4\xdc" .
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"\xb0\xcb\xdf\x9d\xd4\x70\x6d\x17\xf9\x4d\x42\x3f\x9b\x1b\x11\x94" .
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"\x9f\x5b\xc1\x9b\x06\x05\x9d\x03\x9d\x5e\x13\x8a\x1e\x9a\x6a\xe8" .
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"\xd9\x7c\x14\x17\x58\xc7\x2a\xf6\xa1\x99\x63\x0a\xd7\xfd\x70\xc3" .
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"\xf6\x5e\x74\x13\x03\xc9\x0b\x04\x26\x98\xf7\x26\x8a\x92\x93\x25" .
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"\xb0\xa2\x0d\x23\xed\x63\x79\x6d\x13\x32\xfa\x3c\x35\x02\x9a\xa3" .
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"\xb3\xdd\x8e\x0a\x24\xbf\x51\xc3\x7c\xcd\x55\x9f\x37\xaf\x94\x4c" .
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"\x29\x08\x52\x82\xb2\x3b\x4e\x37\x9f\x17\x07\x91\x11\x3b\xfd\xcd";
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$salt = uc $salt;
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my $digest = sha1 ($word . $salt);
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my ($a, $b, $c, $d, $e) = unpack ("I*", $digest);
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my $lengthMagicArray = 0x20;
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my $offsetMagicArray = 0;
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$lengthMagicArray += (($a >> 0) & 0xff) % 6;
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$lengthMagicArray += (($a >> 8) & 0xff) % 6;
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$lengthMagicArray += (($a >> 16) & 0xff) % 6;
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$lengthMagicArray += (($a >> 24) & 0xff) % 6;
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$lengthMagicArray += (($b >> 0) & 0xff) % 6;
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$lengthMagicArray += (($b >> 8) & 0xff) % 6;
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$lengthMagicArray += (($b >> 16) & 0xff) % 6;
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$lengthMagicArray += (($b >> 24) & 0xff) % 6;
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$lengthMagicArray += (($c >> 0) & 0xff) % 6;
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$lengthMagicArray += (($c >> 8) & 0xff) % 6;
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$offsetMagicArray += (($c >> 16) & 0xff) % 8;
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$offsetMagicArray += (($c >> 24) & 0xff) % 8;
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$offsetMagicArray += (($d >> 0) & 0xff) % 8;
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$offsetMagicArray += (($d >> 8) & 0xff) % 8;
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$offsetMagicArray += (($d >> 16) & 0xff) % 8;
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$offsetMagicArray += (($d >> 24) & 0xff) % 8;
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$offsetMagicArray += (($e >> 0) & 0xff) % 8;
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$offsetMagicArray += (($e >> 8) & 0xff) % 8;
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$offsetMagicArray += (($e >> 16) & 0xff) % 8;
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$offsetMagicArray += (($e >> 24) & 0xff) % 8;
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my $hash_buf = sha1_hex ($word . substr ($theMagicArray_s, $offsetMagicArray, $lengthMagicArray) . $salt);
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my $hash = sprintf ("%s\$%.20s%020X", $salt, uc $hash_buf, 0);
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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 $index1 = index ($line, ":");
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return if $index1 < 1;
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my @split1 = split (":", $line);
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my @split2 = split ('\$', $split1[0]);
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return unless scalar @split2 == 2;
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my $word;
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if (scalar @split1 > 1)
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{
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$word = $split1[1];
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}
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else
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{
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$word = "";
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}
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my $salt = $split2[0];
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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, $salt);
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return ($new_hash, $word);
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}
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1;
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