{
return new DSASecretKey();
}
/**
* Generate keypair
*
* Generates a keypair for a given keysize in bits
*
* @abstract
* @access public
* @static
* @param int $keysize Keysize in bits
* @return DSAKeyPair Returning an instance of the key pair
*/
public static function generate($keysize)
{
if (!isset(self::$KEYSIZES[$keysize])) {
throw new NoSuchAlgorithmException("keysize not supported");
}
$static_keys = self::$KEYSIZES[$keysize];
$instance = new DSAKeyPair();
$keys = CryptDSA::generate($static_keys["p"], $static_keys["q"], $static_keys["g"]);
$instance->keysize = $keysize;
$instance->secretKey = new DSASecretKey($keys["x"], $keysize);
$instance->publicKey = new DSAPublicKey($keys["y"], $keysize);
$instance->algorithm = $instance->publicKey->algorithm = $instance->secretKey->algorithm = "DS";
return $instance;
}
}
DSAKeyPair::initialize();
