1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package tests.security.spec; 19 20 import junit.framework.TestCase; 21 22 import java.security.Key; 23 import java.security.KeyFactory; 24 import java.security.KeyPair; 25 import java.security.KeyPairGenerator; 26 import java.security.interfaces.DSAPrivateKey; 27 import java.security.interfaces.DSAPublicKey; 28 import java.security.spec.EncodedKeySpec; 29 import java.security.spec.PKCS8EncodedKeySpec; 30 import java.security.spec.X509EncodedKeySpec; 31 32 public class EncodedKeySpec2Test extends TestCase { 33 34 /** 35 * java.security.spec.EncodedKeySpec#getEncoded() 36 */ 37 public void test_getEncoded() throws Exception { 38 39 KeyPairGenerator keyGen = KeyPairGenerator.getInstance("DSA"); 40 41 keyGen.initialize(1024); 42 KeyPair keys = keyGen.generateKeyPair(); 43 44 45 KeyFactory fact = KeyFactory.getInstance("DSA"); 46 47 48 // check public key encoding 49 byte[] encoded = keys.getPublic().getEncoded(); 50 Key key = fact.generatePublic(new X509EncodedKeySpec(encoded)); 51 52 assertTrue("public key encodings were different", 53 isEqual(key, keys.getPublic())); 54 55 // check private key encoding 56 encoded = keys.getPrivate().getEncoded(); 57 key = fact.generatePrivate(new PKCS8EncodedKeySpec(encoded)); 58 59 assertTrue("private key encodings were different", 60 isEqual(key, keys.getPrivate())); 61 } 62 63 private boolean isEqual(Key key1, Key key2) { 64 if (key1 instanceof DSAPublicKey && key2 instanceof DSAPublicKey) { 65 DSAPublicKey dsa1 = ((DSAPublicKey) key1); 66 DSAPublicKey dsa2 = ((DSAPublicKey) key2); 67 return dsa1.getY().equals(dsa2.getY()) 68 && dsa1.getParams().getG().equals(dsa2.getParams().getG()) 69 && dsa1.getParams().getP().equals(dsa2.getParams().getP()) 70 && dsa1.getParams().getQ().equals(dsa2.getParams().getQ()); 71 72 } else if (key1 instanceof DSAPrivateKey 73 && key2 instanceof DSAPrivateKey) { 74 DSAPrivateKey dsa1 = ((DSAPrivateKey) key1); 75 DSAPrivateKey dsa2 = ((DSAPrivateKey) key2); 76 return dsa1.getX().equals(dsa2.getX()) 77 && dsa1.getParams().getG().equals(dsa2.getParams().getG()) 78 && dsa1.getParams().getP().equals(dsa2.getParams().getP()) 79 && dsa1.getParams().getQ().equals(dsa2.getParams().getQ()); 80 } else { 81 return false; 82 } 83 } 84 } 85
