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<?php
namespace Xls\Record;
class Password extends AbstractRecord
{
const NAME = 'PASSWORD';
const ID = 0x0013;
/**
* Generate the PASSWORD biff record
*
* @param $plaintextPassword
* @return string
*/
public function getData($plaintextPassword)
$data = pack("v", $this->encode($plaintextPassword));
return $this->getFullRecord($data);
}
* Based on the algorithm provided by Daniel Rentz of OpenOffice.
* @param string $plaintext The password to be encoded in plaintext.
* @return string The encoded password
protected function encode($plaintext)
$password = 0x0000;
$pos = 1; // char position
// split the plain text password in its component characters
$chars = preg_split('//', $plaintext, -1, PREG_SPLIT_NO_EMPTY);
foreach ($chars as $char) {
$value = ord($char) << $pos; // shifted ASCII value
$rotatedBits = $value >> 15; // rotated bits beyond bit 15
$value &= 0x7fff; // first 15 bits
$password ^= ($value | $rotatedBits);
$pos++;
$password ^= strlen($plaintext);
$password ^= 0xCE4B;
return $password;
MAXakaWIZARD /
xls-writer
