| package org.bouncycastle.operator; |
| |
| import java.io.OutputStream; |
| |
| import org.bouncycastle.asn1.x509.AlgorithmIdentifier; |
| |
| public interface MacCalculator |
| { |
| AlgorithmIdentifier getAlgorithmIdentifier(); |
| |
| /** |
| * Returns a stream that will accept data for the purpose of calculating |
| * the MAC for later verification. Use org.bouncycastle.util.io.TeeOutputStream if you want to accumulate |
| * the data on the fly as well. |
| * |
| * @return an OutputStream |
| */ |
| OutputStream getOutputStream(); |
| |
| /** |
| * Return the calculated MAC based on what has been written to the stream. |
| * |
| * @return calculated MAC. |
| */ |
| byte[] getMac(); |
| |
| |
| /** |
| * Return the key used for calculating the MAC. |
| * |
| * @return the MAC key. |
| */ |
| GenericKey getKey(); |
| } |