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GH-364: Use flags for RSA signature requests in AbstractAgentClient
Respect the flags in OpenSSH signing requests. These flags tell what kind of signature should be produced for an RSA key: ssh-rsa, rsa-sha2-256, or rsa-sha2-512. Previous code only set the flags on the client side, but ignored them in the server side and thus always answered with an ssh-rsa signature. Bug: #364
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134 changes: 134 additions & 0 deletions
134
sshd-core/src/test/java/org/apache/sshd/agent/AgentUnitTest.java
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|---|---|---|
| @@ -0,0 +1,134 @@ | ||
| /* | ||
| * 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.agent; | ||
|
|
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| import java.io.IOException; | ||
| import java.security.KeyPair; | ||
| import java.util.Arrays; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
|
|
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| import org.apache.sshd.agent.common.AbstractAgentClient; | ||
| import org.apache.sshd.agent.common.AbstractAgentProxy; | ||
| import org.apache.sshd.agent.local.AgentImpl; | ||
| import org.apache.sshd.common.config.keys.KeyUtils; | ||
| import org.apache.sshd.common.keyprovider.KeyPairProvider; | ||
| import org.apache.sshd.common.signature.BuiltinSignatures; | ||
| import org.apache.sshd.common.signature.Signature; | ||
| import org.apache.sshd.common.util.buffer.Buffer; | ||
| import org.apache.sshd.common.util.buffer.ByteArrayBuffer; | ||
| import org.apache.sshd.common.util.security.SecurityUtils; | ||
| import org.apache.sshd.util.test.BaseTestSupport; | ||
| import org.apache.sshd.util.test.NoIoTestCase; | ||
| import org.junit.Test; | ||
| import org.junit.experimental.categories.Category; | ||
| import org.junit.runner.RunWith; | ||
| import org.junit.runners.Parameterized; | ||
|
|
||
| /** | ||
| * Simple short-circuited test for {@link AbstractAgentClient} and {@link AbstractAgentProxy}. | ||
| */ | ||
| @Category(NoIoTestCase.class) | ||
| @RunWith(Parameterized.class) | ||
| public class AgentUnitTest extends BaseTestSupport { | ||
|
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| private String algorithm; | ||
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| private BuiltinSignatures factory; | ||
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| public AgentUnitTest(String algorithm, BuiltinSignatures factory) { | ||
| this.algorithm = algorithm; | ||
| this.factory = factory; | ||
| } | ||
|
|
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| @Parameterized.Parameters(name = "{0}") | ||
| public static List<Object[]> getParameters() { | ||
| return Arrays.asList(new Object[] { KeyUtils.RSA_SHA512_KEY_TYPE_ALIAS, BuiltinSignatures.rsaSHA512 }, | ||
| new Object[] { KeyUtils.RSA_SHA256_KEY_TYPE_ALIAS, BuiltinSignatures.rsaSHA256 }, | ||
| new Object[] { KeyPairProvider.SSH_RSA, BuiltinSignatures.rsa }); | ||
| } | ||
|
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| @Test | ||
| public void testRsaSignature() throws Exception { | ||
| SshAgent agent = new AgentImpl(); | ||
| KeyPair pair = SecurityUtils.getKeyPairGenerator(KeyUtils.RSA_ALGORITHM).generateKeyPair(); | ||
| agent.addIdentity(pair, "test key"); | ||
| Server server = new Server(agent); | ||
| Client client = new Client(server); | ||
| server.setClient(client); | ||
| byte[] data = { 'd', 'a', 't', 'a' }; | ||
| Map.Entry<String, byte[]> result = client.sign(null, pair.getPublic(), algorithm, data); | ||
| assertEquals("Unexpected signature algorithm", algorithm, result.getKey()); | ||
| byte[] signature = result.getValue(); | ||
| Signature verifier = factory.get(); | ||
| verifier.initVerifier(null, pair.getPublic()); | ||
| verifier.update(null, data); | ||
| assertTrue("Signature should validate", verifier.verify(null, signature)); | ||
| } | ||
|
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| private static class Server extends AbstractAgentClient { | ||
|
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| private Client client; | ||
|
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| protected Server(SshAgent agent) { | ||
| super(agent); | ||
| } | ||
|
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| @Override | ||
| protected void reply(Buffer buf) throws IOException { | ||
| client.setResult(buf.getCompactData()); | ||
| } | ||
|
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| void setClient(Client client) { | ||
| this.client = client; | ||
| } | ||
|
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| void request(byte[] data) throws IOException { | ||
| messageReceived(ByteArrayBuffer.getCompactClone(data)); | ||
| } | ||
| } | ||
|
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| private static class Client extends AbstractAgentProxy { | ||
|
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| private final Server server; | ||
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| private byte[] result; | ||
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| protected Client(Server server) { | ||
| super(null); | ||
| this.server = server; | ||
| } | ||
|
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| @Override | ||
| protected Buffer request(Buffer buffer) throws IOException { | ||
| server.request(buffer.getCompactData()); | ||
| Buffer received = ByteArrayBuffer.getCompactClone(result); | ||
| return new ByteArrayBuffer(received.getBytes()); | ||
| } | ||
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| @Override | ||
| public boolean isOpen() { | ||
| return true; | ||
| } | ||
|
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| void setResult(byte[] data) { | ||
| result = data; | ||
| } | ||
| } | ||
| } |