/**
* Setter for the value of the private number
*
* @param string $number
* @param string $type
* @throws Zend_Crypt_DiffieHellman_Exception
* @return Zend_Crypt_DiffieHellman
*/
public function setPrivateKey($number, $type = self::NUMBER)
{
if ($type == self::BINARY) {
$number = $this->_math->fromBinary($number);
}
if (!preg_match("/^\\d+\$/", $number)) {
throw new Zend_Crypt_DiffieHellman_Exception('invalid parameter; not a positive natural number');
}
$this->_privateKey = (string) $number;
return $this;
}
