| /* |
| * Copyright (C) 2010 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 libcore.javax.crypto; |
| |
| import java.security.Provider; |
| import java.security.SecureRandom; |
| import java.security.Security; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.List; |
| import java.util.ArrayList; |
| import java.util.Set; |
| import javax.crypto.KeyGenerator; |
| import javax.crypto.SecretKey; |
| import junit.framework.TestCase; |
| |
| public class KeyGeneratorTest extends TestCase { |
| |
| private static boolean isUnsupported(KeyGenerator kg) { |
| // Don't bother testing "Sun..." KeyGenerators |
| return (kg.getAlgorithm().startsWith("Sun")); |
| } |
| |
| public void test_getInstance() throws Exception { |
| Provider[] providers = Security.getProviders(); |
| for (Provider provider : providers) { |
| Set<Provider.Service> services = provider.getServices(); |
| for (Provider.Service service : services) { |
| String type = service.getType(); |
| if (!type.equals("KeyGenerator")) { |
| continue; |
| } |
| String algorithm = service.getAlgorithm(); |
| try { |
| // KeyGenerator.getInstance(String) |
| KeyGenerator kg1 = KeyGenerator.getInstance(algorithm); |
| assertEquals(algorithm, kg1.getAlgorithm()); |
| test_KeyGenerator(kg1); |
| |
| // KeyGenerator.getInstance(String, Provider) |
| KeyGenerator kg2 = KeyGenerator.getInstance(algorithm, provider); |
| assertEquals(algorithm, kg2.getAlgorithm()); |
| assertEquals(provider, kg2.getProvider()); |
| test_KeyGenerator(kg2); |
| |
| // KeyGenerator.getInstance(String, String) |
| KeyGenerator kg3 = KeyGenerator.getInstance(algorithm, provider.getName()); |
| assertEquals(algorithm, kg3.getAlgorithm()); |
| assertEquals(provider, kg3.getProvider()); |
| test_KeyGenerator(kg3); |
| } catch (Exception e) { |
| throw new Exception("Problem testing KeyPairGenerator." + algorithm, e); |
| } |
| } |
| } |
| } |
| |
| private static final Map<String, List<Integer>> KEY_SIZES |
| = new HashMap<String, List<Integer>>(); |
| private static void putKeySize(String algorithm, int keySize) { |
| algorithm = algorithm.toUpperCase(); |
| List<Integer> keySizes = KEY_SIZES.get(algorithm); |
| if (keySizes == null) { |
| keySizes = new ArrayList<Integer>(); |
| KEY_SIZES.put(algorithm, keySizes); |
| } |
| keySizes.add(keySize); |
| } |
| private static List<Integer> getKeySizes(String algorithm) throws Exception { |
| algorithm = algorithm.toUpperCase(); |
| List<Integer> keySizes = KEY_SIZES.get(algorithm); |
| if (keySizes == null) { |
| throw new Exception("Unknown key sizes for KeyGenerator." + algorithm); |
| } |
| return keySizes; |
| } |
| static { |
| putKeySize("AES", 128); |
| putKeySize("AES", 192); |
| putKeySize("AES", 256); |
| putKeySize("ARC4", 1024); |
| putKeySize("ARC4", 40); |
| putKeySize("ARC4", 41); |
| putKeySize("ARCFOUR", 1024); |
| putKeySize("ARCFOUR", 40); |
| putKeySize("ARCFOUR", 41); |
| putKeySize("Blowfish", 32); |
| putKeySize("Blowfish", 32+8); |
| putKeySize("Blowfish", 448); |
| putKeySize("DES", 56); |
| putKeySize("DESede", 112); |
| putKeySize("DESede", 168); |
| putKeySize("RC2", 40); |
| putKeySize("RC2", 41); |
| putKeySize("RC2", 1024); |
| putKeySize("RC4", 40); |
| putKeySize("RC4", 41); |
| putKeySize("RC4", 1024); |
| putKeySize("HmacMD5", 1); |
| putKeySize("HmacMD5", 1025); |
| putKeySize("HmacSHA1", 1); |
| putKeySize("HmacSHA1", 1025); |
| putKeySize("HmacSHA256", 40); |
| putKeySize("HmacSHA256", 1025); |
| putKeySize("HmacSHA384", 40); |
| putKeySize("HmacSHA384", 1025); |
| putKeySize("HmacSHA512", 40); |
| putKeySize("HmacSHA512", 1025); |
| } |
| |
| private void test_KeyGenerator(KeyGenerator kg) throws Exception { |
| if (isUnsupported(kg)) { |
| return; |
| } |
| |
| kg.init((SecureRandom) null); |
| test_SecretKey(kg, kg.generateKey()); |
| |
| kg.init(new SecureRandom()); |
| test_SecretKey(kg, kg.generateKey()); |
| |
| String algorithm = kg.getAlgorithm(); |
| List<Integer> keySizes = getKeySizes(algorithm); |
| for (int keySize : keySizes) { |
| kg.init(keySize); |
| test_SecretKey(kg, kg.generateKey()); |
| |
| kg.init(keySize, (SecureRandom) null); |
| test_SecretKey(kg, kg.generateKey()); |
| |
| kg.init(keySize, new SecureRandom()); |
| test_SecretKey(kg, kg.generateKey()); |
| } |
| } |
| |
| private void test_SecretKey(KeyGenerator kg, SecretKey sk) throws Exception { |
| assertNotNull(sk); |
| assertEquals(kg.getAlgorithm().toUpperCase(), sk.getAlgorithm().toUpperCase()); |
| assertNotNull(sk.getEncoded()); |
| assertNotNull(sk.getFormat()); |
| } |
| } |