| /* |
| * 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.KeyPair; |
| import java.security.PublicKey; |
| import java.util.Collection; |
| |
| import org.apache.sshd.common.NamedFactory; |
| import org.apache.sshd.common.NamedResource; |
| import org.apache.sshd.common.config.keys.KeyUtils; |
| import org.apache.sshd.common.signature.Signature; |
| import org.apache.sshd.common.signature.SignatureFactoriesManager; |
| import org.apache.sshd.common.util.ValidateUtils; |
| |
| /** |
| * Uses a {@link KeyPair} to generate the identity signature |
| * |
| * @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a> |
| */ |
| public class KeyPairIdentity implements PublicKeyIdentity { |
| private final KeyPair pair; |
| private final Collection<NamedFactory<Signature>> signatureFactories; |
| |
| public KeyPairIdentity(SignatureFactoriesManager primary, SignatureFactoriesManager secondary, KeyPair pair) { |
| this.signatureFactories = ValidateUtils.checkNotNullAndNotEmpty( |
| SignatureFactoriesManager.resolveSignatureFactories(primary, secondary), |
| "No available signature factories"); |
| this.pair = ValidateUtils.checkNotNull(pair, "No key pair"); |
| } |
| |
| @Override |
| public PublicKey getPublicKey() { |
| return pair.getPublic(); |
| } |
| |
| @Override |
| public byte[] sign(byte[] data) throws Exception { |
| String keyType = KeyUtils.getKeyType(getPublicKey()); |
| Signature verifier = ValidateUtils.checkNotNull( |
| NamedFactory.Utils.create(signatureFactories, keyType), |
| "No signer could be located for key type=%s", |
| keyType); |
| verifier.initSigner(pair.getPrivate()); |
| verifier.update(data); |
| return verifier.sign(); |
| } |
| |
| @Override |
| public String toString() { |
| PublicKey pubKey = getPublicKey(); |
| return getClass().getSimpleName() |
| + " type=" + KeyUtils.getKeyType(pubKey) |
| + ", factories=" + NamedResource.Utils.getNames(signatureFactories) |
| + ", fingerprint=" + KeyUtils.getFingerPrint(pubKey); |
| } |
| } |