co.cask.common.security.authentication.Signed Maven / Gradle / Ivy
/*
* Copyright © 2014 Cask Data, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package co.cask.common.security.authentication;
/**
* Represents a message signed by a secret key.
* @param the type of the message object which has been signed.
*/
public interface Signed {
/**
* Returns the message object which was signed.
*/
T getMessage();
/**
* Returns the identifier for the secret key used to compute the message digest.
*/
int getKeyId();
/**
* Returns the digest generated against the message.
*/
byte[] getDigestBytes();
}