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 18package org.apache.harmony.security.tests.java.security; 19 20import java.security.KeyPairGenerator; 21import java.security.Provider; 22import java.security.SecureRandom; 23import java.security.Security; 24import java.security.spec.DSAParameterSpec; 25import java.security.interfaces.DSAPublicKey; 26import java.security.interfaces.DSAParams; 27 28public class KeyPairGenerator4Test extends junit.framework.TestCase { 29 30 /** 31 * java.security.KeyPairGenerator#genKeyPair() 32 */ 33 public void test_genKeyPair() throws Exception { 34 KeyPairGenerator gen = KeyPairGenerator.getInstance("DSA"); 35 gen.initialize(1024); 36 assertNotNull("KeyPair is null", gen.genKeyPair()); 37 } 38 39 /** 40 * java.security.KeyPairGenerator#getAlgorithm() 41 */ 42 public void test_getAlgorithm() throws Exception { 43 String alg = KeyPairGenerator.getInstance("DSA").getAlgorithm(); 44 assertEquals("getAlgorithm returned unexpected value", "DSA", alg); 45 } 46 47 /** 48 * java.security.KeyPairGenerator#getInstance(java.lang.String) 49 */ 50 public void test_getInstanceLjava_lang_String() throws Exception { 51 KeyPairGenerator.getInstance("DSA"); 52 } 53 54 /** 55 * java.security.KeyPairGenerator#getInstance(java.lang.String, 56 * java.lang.String) 57 */ 58 public void test_getInstanceLjava_lang_StringLjava_lang_String() 59 throws Exception { 60 61 // Test1: Test with named provider 62 Provider[] providers = Security.getProviders("KeyPairGenerator.DSA"); 63 64 for (int i = 0; i < providers.length; i++) { 65 KeyPairGenerator.getInstance("DSA", providers[i].getName()); 66 }// end for 67 68 // Test2: Test with empty provider name - should raise 69 // IllegalArgumentException 70 try { 71 KeyPairGenerator.getInstance("DSA", ""); 72 fail("Should have thrown IllegalArgumentException"); 73 } catch (IllegalArgumentException e) { 74 // expected 75 } 76 } 77 78 /** 79 * java.security.KeyPairGenerator#getProvider() 80 */ 81 public void test_getProvider() throws Exception { 82 Provider p = KeyPairGenerator.getInstance("DSA").getProvider(); 83 assertNotNull("provider is null", p); 84 } 85 86 /** 87 * java.security.KeyPairGenerator#initialize(int) 88 */ 89 public void test_initializeI() throws Exception { 90 KeyPairGenerator keyPair = KeyPairGenerator.getInstance("DSA"); 91 keyPair.initialize(1024); 92 } 93 94 /** 95 * java.security.KeyPairGenerator#initialize(int, 96 * java.security.SecureRandom) 97 */ 98 public void test_initializeILjava_security_SecureRandom() throws Exception { 99 KeyPairGenerator keyPair = KeyPairGenerator.getInstance("DSA"); 100 keyPair.initialize(1024, new SecureRandom()); 101 } 102 103 104 /** 105 * java.security.KeyPairGenerator#initialize(java.security.spec.AlgorithmParameterSpec) 106 */ 107 public void test_initializeLjava_security_spec_AlgorithmParameterSpec() 108 throws Exception { 109 // create DSAParams 110 KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("DSA"); 111 keyPairGenerator.initialize(1024); 112 DSAPublicKey key = (DSAPublicKey) keyPairGenerator.genKeyPair() 113 .getPublic(); 114 DSAParams params = key.getParams(); 115 116 KeyPairGenerator keyPair = KeyPairGenerator.getInstance("DSA"); 117 keyPair.initialize(new DSAParameterSpec(params.getP(), params.getQ(), 118 params.getG())); 119 } 120 121 /** 122 * java.security.KeyPairGenerator#initialize(java.security.spec.AlgorithmParameterSpec, 123 * java.security.SecureRandom) 124 */ 125 public void test_initializeLjava_security_spec_AlgorithmParameterSpecLjava_security_SecureRandom() 126 throws Exception { 127 // create DSAParams 128 KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("DSA"); 129 keyPairGenerator.initialize(1024); 130 DSAPublicKey key = (DSAPublicKey) keyPairGenerator.genKeyPair() 131 .getPublic(); 132 DSAParams params = key.getParams(); 133 134 KeyPairGenerator keyPair = KeyPairGenerator.getInstance("DSA"); 135 keyPair.initialize(new DSAParameterSpec(params.getP(), params.getQ(), 136 params.getG()), new SecureRandom()); 137 } 138} 139