| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * 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 org.apache.harmony.crypto.tests.javax.crypto.func; |
| |
| import java.security.AlgorithmParameterGenerator; |
| import java.security.AlgorithmParameters; |
| import java.security.KeyFactory; |
| import java.security.KeyPair; |
| import java.security.KeyPairGenerator; |
| import java.security.PrivateKey; |
| import java.security.PublicKey; |
| import java.security.SecureRandom; |
| import java.security.spec.X509EncodedKeySpec; |
| |
| import javax.crypto.KeyAgreement; |
| import javax.crypto.spec.DHParameterSpec; |
| |
| import org.bouncycastle.util.Arrays; |
| |
| public class KeyAgreementThread extends TestThread { |
| class KeyAgreementGen { |
| private PrivateKey privateKey = null; |
| private byte[] publicKeyBytes = null; |
| |
| KeyAgreementGen(DHParameterSpec parameterSpec) |
| throws Exception { |
| KeyPairGenerator keyGen = KeyPairGenerator.getInstance("DH"); |
| keyGen.initialize(parameterSpec); |
| KeyPair keypair = keyGen.generateKeyPair(); |
| |
| privateKey = keypair.getPrivate(); |
| publicKeyBytes = keypair.getPublic().getEncoded(); |
| } |
| |
| public byte[] getPublicKeyBytes () { |
| return publicKeyBytes; |
| } |
| |
| public byte[] getSecretKey(String alg, byte[] publicKey) throws Exception { |
| X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(publicKey); |
| KeyFactory keyFact = KeyFactory.getInstance("DH"); |
| PublicKey pubKey = keyFact.generatePublic(x509KeySpec); |
| |
| KeyAgreement ka = KeyAgreement.getInstance("DH"); |
| ka.init(privateKey); |
| ka.doPhase(pubKey, true); |
| |
| return ka.generateSecret(); |
| } |
| } |
| |
| public KeyAgreementThread(String[] names) { |
| super(names); |
| } |
| |
| @Override |
| public void test() throws Exception { |
| AlgorithmParameterGenerator apg = AlgorithmParameterGenerator.getInstance("DH"); |
| apg.init(1024, new SecureRandom()); |
| AlgorithmParameters ap = apg.generateParameters(); |
| DHParameterSpec ps = ap.getParameterSpec(DHParameterSpec.class); |
| |
| KeyAgreementGen kag1 = new KeyAgreementGen(ps); |
| KeyAgreementGen kag2 = new KeyAgreementGen(ps); |
| |
| byte[] bArray1 = kag1.getPublicKeyBytes(); |
| byte[] bArray2 = kag2.getPublicKeyBytes(); |
| |
| byte[] sk1 = kag1.getSecretKey(algName, bArray2); |
| byte[] sk2 = kag2.getSecretKey(algName, bArray1); |
| |
| if (Arrays.areEqual(sk1, sk2) == false) { |
| throw new Exception ("Generated keys are not the same"); |
| } |
| } |
| } |