/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.sshd.client.auth.pubkey;
import java.security.PublicKey;
import java.util.Objects;
import org.apache.sshd.agent.SshAgent;
import org.apache.sshd.common.config.keys.KeyUtils;
/**
* Uses an {@link SshAgent} to generate the identity signature
*
* @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a>
*/
public class KeyAgentIdentity implements PublicKeyIdentity {
private final SshAgent agent;
private final PublicKey key;
private final String comment;
public KeyAgentIdentity(SshAgent agent, PublicKey key, String comment) {
this.agent = Objects.requireNonNull(agent, "No signing agent");
this.key = Objects.requireNonNull(key, "No public key");
this.comment = comment;
}
@Override
public PublicKey getPublicKey() {
return key;
}
public String getComment() {
return comment;
}
@Override
public byte[] sign(byte[] data) throws Exception {
return agent.sign(getPublicKey(), data);
}
@Override
public String toString() {
PublicKey pubKey = getPublicKey();
return getClass().getSimpleName() + "[" + KeyUtils.getKeyType(pubKey) + "]"
+ " fingerprint=" + KeyUtils.getFingerPrint(pubKey)
+ ", comment=" + getComment();
}
}