lithium\storage\session\strategy\Encrypt::_decrypt()

protected method

Decrypt and unserialize a previously encrypted string.

Parameters

string $encrypted
The base64 encoded and encrypted string.

Returns

array

The cleartext data.

Source

	protected function _decrypt($encrypted) {
		$secret = $this->_hashSecret($this->_config['secret']);

		$vectorSize = strlen(base64_encode(str_repeat(' ', $this->_vectorSize())));
		$vector = base64_decode(substr($encrypted, -$vectorSize));
		$data = base64_decode(substr($encrypted, 0, -$vectorSize));

		$decrypted = openssl_decrypt(
			$data,
			'aes-256-cbc',
			$secret,
			OPENSSL_RAW_DATA|OPENSSL_ZERO_PADDING,
			$vector
		);
		return unserialize(trim($decrypted));
	}