/*
 * 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.harmony.security.tests.java.security;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.math.BigInteger;
import java.security.InvalidKeyException;
import java.security.KeyFactory;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.PrivateKey;
import java.security.Provider;
import java.security.PublicKey;
import java.security.SecureRandom;
import java.security.Security;
import java.security.SignatureException;
import java.security.UnrecoverableEntryException;
import java.security.UnrecoverableKeyException;
import java.security.cert.Certificate;
import java.security.cert.CertificateEncodingException;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import java.security.interfaces.DSAPrivateKey;
import java.security.spec.DSAPrivateKeySpec;
import java.security.spec.InvalidKeySpecException;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.Set;
import tests.support.Support_TestProvider;

public class KeyStore2Test extends junit.framework.TestCase {
    static PrivateKey privateKey;
    static {
        try {
            KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("DSA");

            SecureRandom secureRandom = new SecureRandom();
            keyPairGenerator.initialize(1024, secureRandom);
            KeyPair keyPair = keyPairGenerator.genKeyPair();
            privateKey = keyPair.getPrivate();
        } catch (Exception e) {
            fail("initialization failed: " + e);
        }
    }

    final char[] pssWord = { 'a', 'b', 'c' };

    final byte[] testEncoding = new byte[] { (byte) 1, (byte) 2, (byte) 3,
            (byte) 4, (byte) 5 };

    private Provider support_TestProvider;

    // creating a certificate
    String certificate = "-----BEGIN CERTIFICATE-----\n"
            + "MIICZTCCAdICBQL3AAC2MA0GCSqGSIb3DQEBAgUAMF8xCzAJBgNVBAYTAlVTMSAw\n"
            + "HgYDVQQKExdSU0EgRGF0YSBTZWN1cml0eSwgSW5jLjEuMCwGA1UECxMlU2VjdXJl\n"
            + "IFNlcnZlciBDZXJ0aWZpY2F0aW9uIEF1dGhvcml0eTAeFw05NzAyMjAwMDAwMDBa\n"
            + "Fw05ODAyMjAyMzU5NTlaMIGWMQswCQYDVQQGEwJVUzETMBEGA1UECBMKQ2FsaWZv\n"
            + "cm5pYTESMBAGA1UEBxMJUGFsbyBBbHRvMR8wHQYDVQQKExZTdW4gTWljcm9zeXN0\n"
            + "ZW1zLCBJbmMuMSEwHwYDVQQLExhUZXN0IGFuZCBFdmFsdWF0aW9uIE9ubHkxGjAY\n"
            + "BgNVBAMTEWFyZ29uLmVuZy5zdW4uY29tMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCB\n"
            + "iQKBgQCofmdY+PiUWN01FOzEewf+GaG+lFf132UpzATmYJkA4AEA/juW7jSi+LJk\n"
            + "wJKi5GO4RyZoyimAL/5yIWDV6l1KlvxyKslr0REhMBaD/3Z3EsLTTEf5gVrQS6sT\n"
            + "WMoSZAyzB39kFfsB6oUXNtV8+UKKxSxKbxvhQn267PeCz5VX2QIDAQABMA0GCSqG\n"
            + "SIb3DQEBAgUAA34AXl3at6luiV/7I9MN5CXYoPJYI8Bcdc1hBagJvTMcmlqL2uOZ\n"
            + "H9T5hNMEL9Tk6aI7yZPXcw/xI2K6pOR/FrMp0UwJmdxX7ljV6ZtUZf7pY492UqwC\n"
            + "1777XQ9UEZyrKJvF5ntleeO0ayBqLGVKCWzWZX9YsXCpv47FNLZbupE=\n"
            + "-----END CERTIFICATE-----\n";

    ByteArrayInputStream certArray = new ByteArrayInputStream(certificate.getBytes());

    String certificate2 = "-----BEGIN CERTIFICATE-----\n"
            + "MIICZzCCAdCgAwIBAgIBGzANBgkqhkiG9w0BAQUFADBhMQswCQYDVQQGEwJVUzEY\n"
            + "MBYGA1UEChMPVS5TLiBHb3Zlcm5tZW50MQwwCgYDVQQLEwNEb0QxDDAKBgNVBAsT\n"
            + "A1BLSTEcMBoGA1UEAxMTRG9EIFBLSSBNZWQgUm9vdCBDQTAeFw05ODA4MDMyMjAy\n"
            + "MjlaFw0wODA4MDQyMjAyMjlaMGExCzAJBgNVBAYTAlVTMRgwFgYDVQQKEw9VLlMu\n"
            + "IEdvdmVybm1lbnQxDDAKBgNVBAsTA0RvRDEMMAoGA1UECxMDUEtJMRwwGgYDVQQD\n"
            + "ExNEb0QgUEtJIE1lZCBSb290IENBMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKB\n"
            + "gQDbrM/J9FrJSX+zxFUbsI9Vw5QbguVBIa95rwW/0M8+sM0r5gd+DY6iubm6wnXk\n"
            + "CSvbfQlFEDSKr4WYeeGp+d9WlDnQdtDFLdA45tCi5SHjnW+hGAmZnld0rz6wQekF\n"
            + "5xQaa5A6wjhMlLOjbh27zyscrorMJ1O5FBOWnEHcRv6xqQIDAQABoy8wLTAdBgNV\n"
            + "HQ4EFgQUVrmYR6m9701cHQ3r5kXyG7zsCN0wDAYDVR0TBAUwAwEB/zANBgkqhkiG\n"
            + "9w0BAQUFAAOBgQDVX1Y0YqC7vekeZjVxtyuC8Mnxbrz6D109AX07LEIRzNYzwZ0w\n"
            + "MTImSp9sEzWW+3FueBIU7AxGys2O7X0qmN3zgszPfSiocBuQuXIYQctJhKjF5KVc\n"
            + "VGQRYYlt+myhl2vy6yPzEVCjiKwMEb1Spu0irCf+lFW2hsdjvmSQMtZvOw==\n"
            + "-----END CERTIFICATE-----\n";

    ByteArrayInputStream certArray2 = new ByteArrayInputStream(certificate2.getBytes());

    String certificate3 = "-----BEGIN CERTIFICATE-----\n"
            + "MIIDXDCCAsWgAwIBAgIBSjANBgkqhkiG9w0BAQUFADBWMQswCQYDVQQGEwJVUzEY\n"
            + "MBYGA1UEChMPVS5TLiBHb3Zlcm5tZW50MQwwCgYDVQQLEwNEb0QxDDAKBgNVBAsT\n"
            + "A1BLSTERMA8GA1UEAxMITWVkIENBLTEwHhcNOTgwODAyMTgwMjQwWhcNMDEwODAy\n"
            + "MTgwMjQwWjB0MQswCQYDVQQGEwJVUzEYMBYGA1UEChMPVS5TLiBHb3Zlcm5tZW50\n"
            + "MQwwCgYDVQQLEwNEb0QxDDAKBgNVBAsTA1BLSTENMAsGA1UECxMEVVNBRjEgMB4G\n"
            + "A1UEAxMXR3VtYnkuSm9zZXBoLjAwMDAwMDUwNDQwgZ8wDQYJKoZIhvcNAQEBBQAD\n"
            + "gY0AMIGJAoGBALT/R7bPqs1c1YqXAg5HNpZLgW2HuAc7RCaP06cE4R44GBLw/fQc\n"
            + "VRNLn5pgbTXsDnjiZVd8qEgYqjKFQka4/tNhaF7No2tBZB+oYL/eP0IWtP+h/W6D\n"
            + "KR5+UvIIdgmx7k3t9jp2Q51JpHhhKEb9WN54trCO9Yu7PYU+LI85jEIBAgMBAAGj\n"
            + "ggEaMIIBFjAWBgNVHSAEDzANMAsGCWCGSAFlAgELAzAfBgNVHSMEGDAWgBQzOhTo\n"
            + "CWdhiGUkIOx5cELXppMe9jAdBgNVHQ4EFgQUkLBJl+ayKgzOp/wwBX9M1lSkCg4w\n"
            + "DgYDVR0PAQH/BAQDAgbAMAwGA1UdEwEB/wQCMAAwgZ0GA1UdHwSBlTCBkjCBj6CB\n"
            + "jKCBiYaBhmxkYXA6Ly9kcy0xLmNoYW1iLmRpc2EubWlsL2NuJTNkTWVkJTIwQ0El\n"
            + "MmQxJTJjb3UlM2RQS0klMmNvdSUzZERvRCUyY28lM2RVLlMuJTIwR292ZXJubWVu\n"
            + "dCUyY2MlM2RVUz9jZXJ0aWZpY2F0ZVJldm9jYXRpb25MaXN0JTNiYmluYXJ5MA0G\n"
            + "CSqGSIb3DQEBBQUAA4GBAFjapuDHMvIdUeYRyEYdShBR1JZC20tJ3MQnyBQveddz\n"
            + "LGFDGpIkRAQU7T/5/ne8lMexyxViC21xOlK9LdbJCbVyywvb9uEm/1je9wieQQtr\n"
            + "kjykuB+WB6qTCIslAO/eUmgzfzIENvnH8O+fH7QTr2PdkFkiPIqBJYHvw7F3XDqy\n"
            + "-----END CERTIFICATE-----\n";

    ByteArrayInputStream certArray3 = new ByteArrayInputStream(certificate3.getBytes());

    private byte[] creatCertificate() throws Exception {
        ByteArrayOutputStream out = null;

        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        X509Certificate cert[] = new X509Certificate[2];
        cert[0] = (X509Certificate) cf.generateCertificate(certArray);
        cert[1] = (X509Certificate) cf.generateCertificate(certArray2);
        KeyStore keyTest = KeyStore.getInstance(KeyStore.getDefaultType());
        keyTest.load(null, null);
        // alias 1
        keyTest.setCertificateEntry("alias1", cert[0]);

        // alias 2
        keyTest.setKeyEntry("alias2", privateKey, pssWord, cert);

        // alias 3
        keyTest.setCertificateEntry("alias3", cert[1]);

        out = new ByteArrayOutputStream();
        keyTest.store(out, pssWord);
        out.close();

        return out.toByteArray();
    }

    /**
     * java.security.KeyStore#aliases()
     */
    public void test_aliases() throws Exception {
        // Test for method java.util.Enumeration
        // java.security.KeyStore.aliases()
        // NOT COMPATIBLE WITH PCS#12
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        X509Certificate cert[] = new X509Certificate[2];
        cert[0] = (X509Certificate) cf.generateCertificate(certArray);
        cert[1] = (X509Certificate) cf.generateCertificate(certArray2);
        KeyStore keyTest = KeyStore.getInstance(KeyStore.getDefaultType());

        try {
            keyTest.aliases();
            fail("expected KeyStoreException");
        } catch (KeyStoreException e) {
            // ok
        }

        keyTest.load(null, null);

        // KeyStore keyTest =
        // KeyStore.getInstance(KeyStore.getDefaultType());
        // alias 1
        keyTest.setCertificateEntry("alias1", cert[0]);

        // alias 2
        keyTest.setCertificateEntry("alias2", cert[0]);

        // alias 3
        keyTest.setCertificateEntry("alias3", cert[0]);

        // obtaining the aliase
        Enumeration<String> aliase = keyTest.aliases();
        Set<String> alia = new HashSet<String>();
        int i = 0;
        while (aliase.hasMoreElements()) {
            alia.add(aliase.nextElement());
            i++;
        }
        assertEquals("the wrong aliases were returned", i, 3);
        assertTrue("the wrong aliases were returned", alia.contains("alias1"));
        assertTrue("the wrong aliases were returned", alia.contains("alias2"));
        assertTrue("the wrong aliases were returned", alia.contains("alias3"));
    }

    /**
     * java.security.KeyStore#containsAlias(java.lang.String)
     */
    public void test_containsAliasLjava_lang_String() throws Exception {
        // Test for method boolean
        // java.security.KeyStore.containsAlias(java.lang.String)
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        X509Certificate cert[] = new X509Certificate[2];
        cert[0] = (X509Certificate) cf.generateCertificate(certArray);
        cert[1] = (X509Certificate) cf.generateCertificate(certArray2);
        KeyStore keyTest = KeyStore.getInstance(KeyStore.getDefaultType());

        try {
            keyTest.containsAlias("alias1");
            fail("expected KeyStoreException");
        } catch (KeyStoreException e) {
            // ok
        }

        keyTest.load(null, null);

        // alias 1
        keyTest.setCertificateEntry("alias1", cert[0]);

        // alias 2
        keyTest.setCertificateEntry("alias2", cert[0]);

        assertTrue("alias1 does not exist", keyTest.containsAlias("alias1"));
        assertTrue("alias2 does not exist", keyTest.containsAlias("alias2"));
        assertFalse("alias3 exists", keyTest.containsAlias("alias3"));

        try {
            keyTest.containsAlias(null);
            fail("expected NullPointerException");
        } catch (NullPointerException e) {
            // ok
        }
    }

    /**
     * java.security.KeyStore#getCertificate(java.lang.String)
     */
    public void test_getCertificateLjava_lang_String() throws Exception {
        // Test for method java.security.cert.Certificate
        // java.security.KeyStore.getCertificate(java.lang.String)
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        X509Certificate cert[] = new X509Certificate[2];
        cert[0] = (X509Certificate) cf.generateCertificate(certArray);
        cert[1] = (X509Certificate) cf.generateCertificate(certArray2);
        KeyStore keyTest = KeyStore.getInstance(KeyStore.getDefaultType());

        try {
            keyTest.getCertificate("anAlias");
            fail("expected KeyStoreException");
        } catch (KeyStoreException e) {
            // ok
        }

        keyTest.load(null, null);

        // alias 1
        PublicKey pub = cert[0].getPublicKey();
        keyTest.setCertificateEntry("alias1", cert[0]);

        Certificate certRes = keyTest.getCertificate("alias1");
        assertEquals("the public key of the certificate from getCertificate() "
                     + "did not equal the original certificate",
                     pub, certRes.getPublicKey());

        // alias 2
        keyTest.setCertificateEntry("alias2", cert[0]);

        // testing for a certificate chain
        Certificate cert2 = keyTest.getCertificate("alias2");
        assertEquals("the certificate for alias2 is supposed to exist",
                     cert2, cert[0]);

    }

    /**
     * java.security.KeyStore#getCertificateAlias(java.security.cert.Certificate)
     */
    public void test_getCertificateAliasLjava_security_cert_Certificate()
            throws Exception {
        // Test for method java.lang.String
        // java.security.KeyStore.getCertificateAlias(java.security.cert.Certificate)
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        X509Certificate cert[] = new X509Certificate[2];
        cert[0] = (X509Certificate) cf.generateCertificate(certArray);
        cert[1] = (X509Certificate) cf.generateCertificate(certArray2);
        KeyStore keyTest = KeyStore.getInstance(KeyStore.getDefaultType());
        keyTest.load(null, null);

        // certificate entry
        keyTest.setCertificateEntry("alias1", cert[1]);
        String alias = keyTest.getCertificateAlias(cert[1]);
        assertEquals("certificate entry - the alias returned for this certificate was wrong",
                     "alias1", alias);

        // key entry

        keyTest.setKeyEntry("alias2", privateKey, pssWord, cert);
        alias = keyTest.getCertificateAlias(cert[0]);
        assertEquals("key entry - the alias returned for this certificate was wrong",
                     "alias2", alias);

        // testing case with a nonexistent certificate
        X509Certificate cert2 = (X509Certificate) cf.generateCertificate(certArray3);
        String aliasNull = keyTest.getCertificateAlias(cert2);
        assertNull("the alias returned for the nonexist certificate was NOT null", aliasNull);
    }

    /**
     * java.security.KeyStore#getCertificateChain(java.lang.String)
     */
    public void test_getCertificateChainLjava_lang_String() throws Exception {
        // Test for method java.security.cert.Certificate[]
        // java.security.KeyStore.getCertificateChain(java.lang.String)
        // creatCertificate();
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        X509Certificate cert[] = new X509Certificate[2];
        cert[0] = (X509Certificate) cf.generateCertificate(certArray);
        cert[1] = (X509Certificate) cf.generateCertificate(certArray2);
        KeyStore keyTest = KeyStore.getInstance(KeyStore.getDefaultType());

        try {
            keyTest.getCertificateChain("anAlias");
            fail("expected KeyStoreException");
        } catch (KeyStoreException e) {
            // ok
        }

        keyTest.load(null, null);

        // alias 1
        keyTest.setCertificateEntry("alias1", cert[0]);

        // alias 2
        keyTest.setKeyEntry("alias2", privateKey, pssWord, cert);

        Certificate[] certRes = keyTest.getCertificateChain("alias2");
        assertEquals("there are more than two certificate returned from getCertificateChain",
                     2, certRes.length);
        assertEquals("the first certificate returned from getCertificateChain is not correct",
                     cert[0].getPublicKey(), certRes[0].getPublicKey());
        assertEquals("the second certificate returned from getCertificateChain is not correct",
                     cert[1].getPublicKey(), certRes[1].getPublicKey());
        Certificate[] certResNull = keyTest.getCertificateChain("alias1");
        assertNull("the certificate chain returned from getCertificateChain is NOT null",
                   certResNull);

        try {
            keyTest.getCertificateChain(null);
            fail("expected NullPointerException");
        } catch (NullPointerException e) {
            // ok
        }

    }

    /**
     * java.security.KeyStore#getInstance(java.lang.String)
     */
    public void test_getInstanceLjava_lang_String() throws Exception {
        // Test for method java.security.KeyStore
        // java.security.KeyStore.getInstance(java.lang.String)
        KeyStore keyTest = KeyStore.getInstance(KeyStore.getDefaultType());
        assertEquals("the method getInstance did not obtain the correct type",
                     KeyStore.getDefaultType(), keyTest.getType());
    }

    /**
     * java.security.KeyStore#getKey(java.lang.String, char[])
     */
    public void test_getKeyLjava_lang_String$C() throws Exception {

        // Test for method java.security.Key
        // java.security.KeyStore.getKey(java.lang.String, char[])
        // creatCertificate();
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        X509Certificate cert[] = new X509Certificate[2];
        cert[0] = (X509Certificate) cf.generateCertificate(certArray);
        cert[1] = (X509Certificate) cf.generateCertificate(certArray2);
        KeyStore keyTest = KeyStore.getInstance(KeyStore.getDefaultType());
        keyTest.load(null, null);

        keyTest.setKeyEntry("alias2", privateKey, pssWord, cert);
        PrivateKey returnedKey = (PrivateKey) keyTest.getKey("alias2", pssWord);
        byte[] retB = returnedKey.getEncoded();
        byte[] priB = privateKey.getEncoded();
        assertTrue(Arrays.equals(retB, priB));
        assertEquals(privateKey.getAlgorithm(), returnedKey.getAlgorithm());
        assertEquals(privateKey.getFormat(), returnedKey.getFormat());

        try {
            keyTest.getKey("alias2", "wrong".toCharArray());
            fail("Should have thrown UnrecoverableKeyException");
        } catch (UnrecoverableKeyException e) {
            // expected
        }

        keyTest.setCertificateEntry("alias1", cert[1]);
        assertNull("the private key returned from getKey for a certificate entry is not null",
                   keyTest.getKey("alias1", pssWord));
    }


    /**
     * java.security.KeyStore#isCertificateEntry(java.lang.String)
     */
    public void test_isCertificateEntryLjava_lang_String() throws Exception {
        // Test for method boolean
        // java.security.KeyStore.isCertificateEntry(java.lang.String)
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        X509Certificate cert[] = new X509Certificate[2];
        cert[0] = (X509Certificate) cf.generateCertificate(certArray);
        cert[1] = (X509Certificate) cf.generateCertificate(certArray2);
        KeyStore keyTest = KeyStore.getInstance(KeyStore.getDefaultType());

        try {
            keyTest.isCertificateEntry("alias");
            fail("expected KeyStoreException");
        } catch (KeyStoreException e) {
            // ok
        }

        keyTest.load(null, null);
        // alias 1
        keyTest.setCertificateEntry("alias1", cert[0]);

        // alias 2
        keyTest.setKeyEntry("alias2", privateKey, pssWord, cert);

        assertTrue("isCertificateEntry method returns false for a certificate",
                   keyTest.isCertificateEntry("alias1"));
        assertFalse("isCertificateEntry method returns true for noncertificate",
                    keyTest.isCertificateEntry("alias2"));
    }

    /**
     * java.security.KeyStore#isKeyEntry(java.lang.String)
     */
    public void test_isKeyEntryLjava_lang_String() throws Exception {
        // Test for method boolean
        // java.security.KeyStore.isKeyEntry(java.lang.String)
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        X509Certificate cert[] = new X509Certificate[2];
        cert[0] = (X509Certificate) cf.generateCertificate(certArray);
        cert[1] = (X509Certificate) cf.generateCertificate(certArray2);
        KeyStore keyTest = KeyStore.getInstance(KeyStore.getDefaultType());

        try {
            keyTest.isKeyEntry("alias");
            fail("expected KeyStoreException");
        } catch (KeyStoreException e) {
            // ok
        }

        keyTest.load(null, null);
        // alias 1
        keyTest.setCertificateEntry("alias1", cert[0]);

        // alias 2
        keyTest.setKeyEntry("alias2", privateKey, pssWord, cert);

        assertTrue("isKeyEntry method returns false for a certificate",
                   keyTest.isKeyEntry("alias2"));
        assertFalse("isKeyEntry method returns true for noncertificate",
                    keyTest.isKeyEntry("alias1"));
    }

    /**
     * java.security.KeyStore#load(java.io.InputStream, char[])
     */
    public void test_loadLjava_io_InputStream$C() throws Exception {
        // Test for method void java.security.KeyStore.load(java.io.InputStream,
        // char[])
        byte[] keyStore = creatCertificate();
        KeyStore keyTest = KeyStore.getInstance(KeyStore.getDefaultType());
        InputStream in = new ByteArrayInputStream(keyStore);
        keyTest.load(in, pssWord);
        in.close();
        assertTrue("alias1 is not a certificate", keyTest.isCertificateEntry("alias1"));
        assertTrue("alias2 is not a keyEntry", keyTest.isKeyEntry("alias2"));
        assertTrue("alias3 is not a certificate", keyTest.isCertificateEntry("alias3"));

        // test with null password
        keyTest = KeyStore.getInstance(KeyStore.getDefaultType());
        in = new ByteArrayInputStream(keyStore);
        keyTest.load(in, null);
        in.close();
        assertTrue("alias1 is not a certificate", keyTest.isCertificateEntry("alias1"));
        assertTrue("alias2 is not a keyEntry", keyTest.isKeyEntry("alias2"));
        assertTrue("alias3 is not a certificate", keyTest.isCertificateEntry("alias3"));

    }

    /**
     * java.security.KeyStore#load(KeyStore.LoadStoreParameter param)
     */
    public void test_loadLjava_security_KeyStoreLoadStoreParameter() {
        try {
            KeyStore keyTest = KeyStore.getInstance(KeyStore.getDefaultType());
            keyTest.load(null);

        } catch (Exception e ) {
            fail("Unexpected Exception " + e);
        }


    }
    /**
     * java.security.KeyStore#setCertificateEntry(java.lang.String,
     *        java.security.cert.Certificate)
     */
    public void test_setCertificateEntryLjava_lang_StringLjava_security_cert_Certificate()
            throws Exception {
        // Test for method void
        // java.security.KeyStore.setCertificateEntry(java.lang.String,
        // java.security.cert.Certificate)
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        X509Certificate cert = (X509Certificate) cf.generateCertificate(certArray);
        KeyStore keyTest = KeyStore.getInstance(KeyStore.getDefaultType());

        try {
            keyTest.setCertificateEntry("alias", cert);
            fail("expected KeyStoreException");
        } catch (KeyStoreException e) {
            // ok
        }

        keyTest.load(null, null);

        PublicKey pub = cert.getPublicKey();
        keyTest.setCertificateEntry("alias1", cert);
        assertTrue("the entry specified by the alias alias1 is not a certificate",
                   keyTest.isCertificateEntry("alias1"));
        Certificate resultCert = keyTest.getCertificate("alias1");
        assertEquals("the public key of the certificate from getCertificate() "
                     + "did not equal the original certificate",
                     pub, resultCert.getPublicKey());


    }

    /**
     * java.security.KeyStore#setKeyEntry(java.lang.String,
     *        java.security.Key, char[], java.security.cert.Certificate[])
     */
    public void test_setKeyEntryLjava_lang_StringLjava_security_Key$C$Ljava_security_cert_Certificate()
            throws Exception {

        // Test for method void
        // java.security.KeyStore.setKeyEntry(java.lang.String,
        // java.security.Key, char[], java.security.cert.Certificate[])

        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        X509Certificate cert[] = new X509Certificate[2];
        cert[0] = (X509Certificate) cf.generateCertificate(certArray);
        cert[1] = (X509Certificate) cf.generateCertificate(certArray2);
        KeyStore keyTest = KeyStore.getInstance(KeyStore.getDefaultType());

        try {
            keyTest.setKeyEntry("alias3", privateKey, pssWord, cert);
            fail("expected KeyStoreException");
        } catch (KeyStoreException e) {
            // ok
        }

        keyTest.load(null, null);

        keyTest.setKeyEntry("alias3", privateKey, pssWord, cert);
        assertTrue("the entry specified by the alias alias3 is not a keyEntry",
                   keyTest.isKeyEntry("alias3"));

        try {
            keyTest.setKeyEntry("alias4", privateKey, pssWord, new Certificate[] {});
            fail("expected IllegalArgumentException");
        } catch (IllegalArgumentException e) {
            // ok
        }

    }

    /**
     * java.security.KeyStore#size()
     */
    public void test_size() throws Exception {
        // Test for method int java.security.KeyStore.size()

        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        X509Certificate cert[] = new X509Certificate[2];
        cert[0] = (X509Certificate) cf.generateCertificate(certArray);
        cert[1] = (X509Certificate) cf.generateCertificate(certArray2);
        KeyStore keyTest = KeyStore.getInstance(KeyStore.getDefaultType());

        try {
            keyTest.size();
            fail("expected KeyStoreException");
        } catch (KeyStoreException e) {
            // ok
        }

        keyTest.load(null, null);
        // alias 1
        keyTest.setCertificateEntry("alias1", cert[0]);

        // alias 2
        keyTest.setKeyEntry("alias2", privateKey, pssWord, cert);

        // alias 3
        keyTest.setCertificateEntry("alias3", cert[1]);

        assertEquals("the size of the keyStore is not 3", 3, keyTest.size());
    }

    public void test_deleteEmptyEntry() {
        try {
            KeyStore keyTest = KeyStore.getInstance(KeyStore.getDefaultType());
            keyTest.load(null, null);
            keyTest.deleteEntry("");
        } catch (Exception e) {
            fail("Unexpected Exception " + e);
        }

        try {
            KeyStore keyTest = KeyStore.getInstance(KeyStore.getDefaultType());
            keyTest.load(null, null);
            keyTest.deleteEntry("entry");
        } catch (Exception e) {
            fail("Unexpected Exception " + e);
        }
    }

    /**
     * java.security.KeyStore#deleteEntry(String)
     */
    public void test_deleteEntry() {
        try {
            KeyStore keyTest = KeyStore.getInstance(KeyStore.getDefaultType());
            keyTest.load(null, null);
            keyTest.deleteEntry(null);
            fail("NullPointerException expected");
        } catch (NullPointerException e) {
            // expected
        } catch (Exception e) {
            fail("Unexpected Exception " + e);
        }

        try {
            KeyStore keyTest = KeyStore.getInstance(KeyStore.getDefaultType());
            keyTest.load(null, "password".toCharArray());

            KeyStore.PasswordProtection pp = new KeyStore.PasswordProtection(
                    pssWord);
            Certificate[] chain = { new MyCertificate("DSA", testEncoding),
                    new MyCertificate("DSA", testEncoding) };
            KeyStore.PrivateKeyEntry pkEntry = new KeyStore.PrivateKeyEntry(
                    privateKey, chain);

            keyTest.setEntry("symKey", pkEntry, pp);

            keyTest.deleteEntry("symKey");

        } catch (KeyStoreException e) {
            fail("Unexpected KeyStoreException " + e.getMessage());
        } catch (IOException e) {
            fail("Unexpected IOException " + e.getMessage());
        } catch (NoSuchAlgorithmException e) {
            fail("Unexpected NoSuchAlgorithmException " + e.getMessage());
        } catch (CertificateException e) {
            fail("Unexpected CertificateException " + e.getMessage());
        } catch (Exception e) {
            fail("Unexpected Exception " + e);
        }

    }

    /**
     * java.security.KeyStore#getCreationDate(String)
     */
    public void test_getCreationDate() throws Exception {
        String type = "DSA";

        KeyStore keyTest = KeyStore.getInstance(KeyStore.getDefaultType());

        try {
            keyTest.getCreationDate("anAlias");
            fail("expected KeyStoreException");
        } catch (KeyStoreException e) {
            // ok
        }

        keyTest.load(null, pssWord);

        assertNull(keyTest.getCreationDate(""));
        try {
            keyTest.getCreationDate(null);
            fail("NullPointerException expected");
        } catch (NullPointerException e) {
            // expected
        }

        Certificate[] chain = { new MyCertificate(type, testEncoding),
                new MyCertificate(type, testEncoding) };
        PrivateKey privateKey1 = KeyFactory.getInstance(type).generatePrivate(
                new DSAPrivateKeySpec(new BigInteger("0"), new BigInteger("0"),
                        new BigInteger("0"), new BigInteger("0")));

        KeyStore.PasswordProtection pp = new KeyStore.PasswordProtection(
                pssWord);
        KeyStore.PrivateKeyEntry pke = new KeyStore.PrivateKeyEntry(privateKey,
                chain);
        KeyStore.PrivateKeyEntry pke1 = new KeyStore.PrivateKeyEntry(
                privateKey1, chain);

        keyTest.setEntry("alias1", pke, pp);
        keyTest.setEntry("alias2", pke1, pp);
        Calendar.getInstance().get(Calendar.DAY_OF_MONTH);

        int dayExpected = Calendar.getInstance().get(Calendar.DAY_OF_MONTH);
        int monthExpected = Calendar.getInstance().get(Calendar.MONTH);
        int yearExpected = Calendar.getInstance().get(Calendar.YEAR);
        int hourExpected = Calendar.getInstance().get(Calendar.HOUR);
        int minuteExpected = Calendar.getInstance().get(Calendar.MINUTE);

        Calendar.getInstance().setTimeInMillis(
                keyTest.getCreationDate("alias1").getTime());
        int dayActual1 = Calendar.getInstance().get(Calendar.DAY_OF_MONTH);
        int monthActual1 = Calendar.getInstance().get(Calendar.MONTH);
        int yearActual1 = Calendar.getInstance().get(Calendar.YEAR);
        int hourActual1 = Calendar.getInstance().get(Calendar.HOUR);
        int minuteActual1 = Calendar.getInstance().get(Calendar.MINUTE);

        assertEquals(dayExpected, dayActual1);
        assertEquals(monthExpected, monthActual1);
        assertEquals(yearExpected, yearActual1);
        assertEquals(hourExpected, hourActual1);
        assertEquals(minuteExpected, minuteActual1);

        Calendar.getInstance().setTimeInMillis(
                keyTest.getCreationDate("alias2").getTime());
        int dayActual2 = Calendar.getInstance().get(Calendar.DAY_OF_MONTH);
        int monthActual2 = Calendar.getInstance().get(Calendar.MONTH);
        int yearActual2 = Calendar.getInstance().get(Calendar.YEAR);
        int hourActual2 = Calendar.getInstance().get(Calendar.HOUR);
        int minuteActual2 = Calendar.getInstance().get(Calendar.MINUTE);

        assertEquals(dayExpected, dayActual2);
        assertEquals(monthExpected, monthActual2);
        assertEquals(yearExpected, yearActual2);
        assertEquals(hourExpected, hourActual2);
        assertEquals(minuteExpected, minuteActual2);

        try {
            keyTest.getCreationDate(null);
            fail("expected NullPointerException");
        } catch (NullPointerException e) {
            // ok
        }
    }

    /**
     * java.security.KeyStore#getEntry(String,
     *        KeyStore.ProtectionParameter)
     */
    public void test_getEntry() {
        String type = "DSA";
        KeyStore keyTest = null;
        KeyStore.PasswordProtection pp = null;

            try {
                keyTest = KeyStore.getInstance(KeyStore.getDefaultType());
            } catch (KeyStoreException e) {
                fail("unexpected exception: " + e);
            }

            try {
                keyTest.getEntry("anAlias", new KeyStore.PasswordProtection(new char[] {}));
                fail("expected KeyStoreException");
            } catch (KeyStoreException e) {
                // ok
            } catch (NoSuchAlgorithmException e) {
                fail("unexpected exception: " + e);
            } catch (UnrecoverableEntryException e) {
                fail("unexpected exception: " + e);
            }

            try {
                keyTest.load(null, pssWord);
            } catch (NoSuchAlgorithmException e) {
                fail("unexpected exception: " + e);
            } catch (CertificateException e) {
                fail("unexpected exception: " + e);
            } catch (IOException e) {
                fail("unexpected exception: " + e);
            }

            try {
                keyTest.getEntry(null, new KeyStore.PasswordProtection(new char[] {}));
                fail("expected NullPointerException");
            } catch (NullPointerException e) {
                // ok
            } catch (NoSuchAlgorithmException e) {
                fail("unexpected exception: " + e);
            } catch (UnrecoverableEntryException e) {
                fail("unexpected exception: " + e);
            } catch (KeyStoreException e) {
                fail("unexpected exception: " + e);
            }

            try {
                keyTest.getEntry("anAlias", null);
            } catch (NullPointerException e) {
                fail("unexpected exception: " + e);
            } catch (NoSuchAlgorithmException e) {
                fail("unexpected exception: " + e);
            } catch (UnrecoverableEntryException e) {
                fail("unexpected exception: " + e);
            } catch (KeyStoreException e) {
                fail("unexpected exception: " + e);
            }

            try {
                keyTest.getEntry(null, null);
                fail("expected NullPointerException");
            } catch (NullPointerException e) {
                // ok
            } catch (NoSuchAlgorithmException e) {
                fail("unexpected exception: " + e);
            } catch (UnrecoverableEntryException e) {
                fail("unexpected exception: " + e);
            } catch (KeyStoreException e) {
                fail("unexpected exception: " + e);
            }


            try {
                assertNull(keyTest.getEntry("alias", pp));
            } catch (NoSuchAlgorithmException e) {
                fail("unexpected exception: " + e);
            } catch (UnrecoverableEntryException e) {
                fail("unexpected exception: " + e);
            } catch (KeyStoreException e) {
                fail("unexpected exception: " + e);
            }

            Certificate[] chain = { new MyCertificate(type, testEncoding),
                    new MyCertificate(type, testEncoding) };

            DSAPrivateKey privateKey1 = null;
            try {
                privateKey1 = (DSAPrivateKey) KeyFactory.getInstance(type)
                        .generatePrivate(
                                new DSAPrivateKeySpec(new BigInteger("1"),
                                        new BigInteger("2"), new BigInteger("3"),
                                        new BigInteger("4")));
            } catch (InvalidKeySpecException e) {
                fail("unexpected exception: " + e);
            } catch (NoSuchAlgorithmException e) {
                fail("unexpected exception: " + e);
            }

            pp = new KeyStore.PasswordProtection(pssWord);

            try {
                assertNull(keyTest.getEntry("alias", pp));
            } catch (NoSuchAlgorithmException e) {
                fail("unexpected exception: " + e);
            } catch (UnrecoverableEntryException e) {
                fail("unexpected exception: " + e);
            } catch (KeyStoreException e) {
                fail("unexpected exception: " + e);
            }

            KeyStore.PrivateKeyEntry pke1 = new KeyStore.PrivateKeyEntry(
                    privateKey, chain);
            KeyStore.PrivateKeyEntry pke2 = new KeyStore.PrivateKeyEntry(
                    privateKey1, chain);

            try {
                keyTest.setEntry("alias1", pke1, pp);
            } catch (KeyStoreException e) {
                fail("unexpected exception: " + e);
            }
            try {
                keyTest.setEntry("alias2", pke2, pp);
            } catch (KeyStoreException e) {
                fail("unexpected exception: " + e);
            }

            try {
                assertNull(keyTest.getEntry("alias", pp));
            } catch (NoSuchAlgorithmException e) {
                fail("unexpected exception: " + e);
            } catch (UnrecoverableEntryException e) {
                fail("unexpected exception: " + e);
            } catch (KeyStoreException e) {
                fail("unexpected exception: " + e);
            }
            KeyStore.PrivateKeyEntry pkeActual1 = null;
            try {
                pkeActual1 = (KeyStore.PrivateKeyEntry) keyTest.getEntry("alias1", pp);
            } catch (NoSuchAlgorithmException e) {
                fail("unexpected exception: " + e);
            } catch (UnrecoverableEntryException e) {
                fail("unexpected exception: " + e);
            } catch (KeyStoreException e) {
                fail("unexpected exception: " + e);
            }
            KeyStore.PrivateKeyEntry pkeActual2 = null;
            try {
                pkeActual2 = (KeyStore.PrivateKeyEntry) keyTest.getEntry("alias2", pp);
            } catch (NoSuchAlgorithmException e) {
                fail("unexpected exception: " + e);
            } catch (UnrecoverableEntryException e) {
                fail("unexpected exception: " + e);
            } catch (KeyStoreException e) {
                fail("unexpected exception: " + e);
            }

            assertTrue(Arrays.equals(chain, pkeActual1.getCertificateChain()));
            assertEquals(privateKey, pkeActual1.getPrivateKey());
            assertEquals(new MyCertificate(type, testEncoding), pkeActual1.getCertificate());
            try {
                assertTrue(keyTest.entryInstanceOf("alias1", KeyStore.PrivateKeyEntry.class));
            } catch (KeyStoreException e) {
                fail("unexpected exception: " + e);
            }

            assertTrue(Arrays.equals(chain, pkeActual2.getCertificateChain()));
            DSAPrivateKey entryPrivateKey = (DSAPrivateKey) pkeActual2.getPrivateKey();
            assertEquals(privateKey1.getX(), entryPrivateKey.getX());
            assertEquals(privateKey1.getParams().getG(), entryPrivateKey.getParams().getG());
            assertEquals(privateKey1.getParams().getP(), entryPrivateKey.getParams().getP());
            assertEquals(privateKey1.getParams().getQ(), entryPrivateKey.getParams().getQ());

            assertEquals(new MyCertificate(type, testEncoding), pkeActual2.getCertificate());
            try {
                assertTrue(keyTest.entryInstanceOf("alias2", KeyStore.PrivateKeyEntry.class));
            } catch (KeyStoreException e) {
                fail("unexpected exception: " + e);
            }



    }

    /**
     * java.security.KeyStore#setEntry(String, KeyStore.Entry,
     *        KeyStore.ProtectionParameter)
     */
    public void test_setEntry() {
        String type = "DSA";
        KeyStore keyTest = null;
        KeyStore.PasswordProtection pp = null;

        try {
            keyTest = KeyStore.getInstance(KeyStore.getDefaultType());
            keyTest.load(null, pssWord);

            Certificate[] chain = { new MyCertificate(type, testEncoding),
                    new MyCertificate(type, testEncoding) };
            DSAPrivateKey privateKey1 = (DSAPrivateKey) KeyFactory.getInstance(type)
                    .generatePrivate(
                            new DSAPrivateKeySpec(new BigInteger("1"),
                                    new BigInteger("2"), new BigInteger("3"),
                                    new BigInteger("4")));

            pp = new KeyStore.PasswordProtection(pssWord);
            KeyStore.PrivateKeyEntry pke = new KeyStore.PrivateKeyEntry(privateKey, chain);
            KeyStore.PrivateKeyEntry pke1 = new KeyStore.PrivateKeyEntry(privateKey1, chain);

            try {
                keyTest.setEntry("alias", pke, null);
                fail("Exception expected");
            } catch (Exception e) {
                // expected
            }

            keyTest.setEntry("alias", pke, pp);

            KeyStore.PrivateKeyEntry pkeActual = (KeyStore.PrivateKeyEntry)
                    keyTest.getEntry("alias",pp);

            assertTrue(Arrays.equals(chain, pkeActual.getCertificateChain()));
            assertEquals(privateKey, pkeActual.getPrivateKey());
            assertEquals(new MyCertificate(type, testEncoding), pkeActual.getCertificate());
            assertTrue(keyTest.entryInstanceOf("alias", KeyStore.PrivateKeyEntry.class));

            keyTest.setEntry("alias", pke1, pp);
            pkeActual = (KeyStore.PrivateKeyEntry) keyTest.getEntry("alias", pp);

            assertTrue(Arrays.equals(chain, pkeActual.getCertificateChain()));
            DSAPrivateKey actualPrivateKey = (DSAPrivateKey) pkeActual.getPrivateKey();
            assertEquals(privateKey1.getX(), actualPrivateKey.getX());
            assertEquals(privateKey1.getParams().getG(), actualPrivateKey.getParams().getG());
            assertEquals(privateKey1.getParams().getP(), actualPrivateKey.getParams().getP());
            assertEquals(privateKey1.getParams().getQ(), actualPrivateKey.getParams().getQ());
            assertEquals(new MyCertificate(type, testEncoding), pkeActual.getCertificate());
            assertTrue(keyTest.entryInstanceOf("alias", KeyStore.PrivateKeyEntry.class));

            keyTest.setEntry("alias2", pke1, pp);
            pkeActual = (KeyStore.PrivateKeyEntry) keyTest.getEntry("alias2", pp);

            assertTrue(Arrays.equals(chain, pkeActual.getCertificateChain()));
            actualPrivateKey = (DSAPrivateKey) pkeActual.getPrivateKey();
            assertEquals(privateKey1.getX(), actualPrivateKey.getX());
            assertEquals(privateKey1.getParams().getG(), actualPrivateKey.getParams().getG());
            assertEquals(privateKey1.getParams().getP(), actualPrivateKey.getParams().getP());
            assertEquals(privateKey1.getParams().getQ(), actualPrivateKey.getParams().getQ());
            assertEquals(new MyCertificate(type, testEncoding), pkeActual.getCertificate());
            assertTrue(keyTest.entryInstanceOf("alias2", KeyStore.PrivateKeyEntry.class));

        } catch (Exception e) {
            fail("Unexpected Exception " + e);
        }


        try {
            keyTest.setEntry(null, null, null);
            fail("NullPointerException expected");
        } catch (NullPointerException e) {
            // expected
        } catch (Exception e) {
            fail("Unexpected exception");
        }

    }

    /*
     * java.security.KeyStore.entryInstanceOf(String, Class<? extends
     * Entry>)
     */
    public void test_entryInstanceOf() throws Exception {

        KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());

        try {
            keyStore.entryInstanceOf("anAlias", KeyStore.SecretKeyEntry.class);
            fail("expected KeyStoreException");
        } catch (KeyStoreException e) {
            // ok
        }

        keyStore.load(null, "pwd".toCharArray());

        // put the key into keystore
        String alias = "alias";
        Certificate[] chain = { new MyCertificate("DSA", testEncoding),
                new MyCertificate("DSA", testEncoding) };

        keyStore.setKeyEntry(alias, privateKey, "pwd".toCharArray(), chain);
        assertTrue(keyStore.entryInstanceOf(alias, KeyStore.PrivateKeyEntry.class));
        assertFalse(keyStore.entryInstanceOf(alias, KeyStore.SecretKeyEntry.class));
        assertFalse(keyStore.entryInstanceOf(alias, KeyStore.TrustedCertificateEntry.class));

        try {
            keyStore.entryInstanceOf(null, KeyStore.SecretKeyEntry.class);
            fail("expected NullPointerException");
        } catch (NullPointerException e) {
            // ok
        }

        try {
            keyStore.entryInstanceOf("anAlias", null);
            fail("expected NullPointerException");
        } catch (NullPointerException e) {
            // ok
        }
    }

    /**
     * java.security.KeyStore#store(KeyStore.LoadStoreParameter)
     */
    public void test_store_java_securityKeyStore_LoadStoreParameter()
            throws Exception {
        KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
        keyStore.load(null, "pwd".toCharArray());
        try {
            keyStore.store(null);
            fail("UnsupportedOperationException expected");
        } catch (UnsupportedOperationException e) {
            // expected
        }
    }

    /**
     * java.security.KeyStore#store(OutputStream, char[])
     */
    public void test_store_java_io_OutputStream_char() throws Exception {
        KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());

        try {
            keyStore.store(new ByteArrayOutputStream(), "pwd".toCharArray());
            fail("expected KeyStoreException");
        } catch (KeyStoreException e) {
            // ok
        }

        keyStore.load(null, "pwd".toCharArray());
        try {
            keyStore.store(null, "pwd".toCharArray());
            fail("NullPointerException or IOException expected");
        } catch (NullPointerException e) {
            // expected
        } catch (IOException e) {
            // also ok
        } catch (Exception e) {
            fail("Unexpected Exception " + e);
        }
    }

    /**
     * Sets up the fixture, for example, open a network connection. This method
     * is called before a test is executed.
     */
    protected void setUp() throws Exception {
        super.setUp();
        support_TestProvider = new Support_TestProvider();
        Security.addProvider(support_TestProvider);
    }

    protected void tearDown() throws Exception {
        super.tearDown();
        Security.removeProvider(support_TestProvider.getName());
    }

    class MyCertificate extends Certificate {

        // MyCertificate encoding
        private final byte[] encoding;

        public MyCertificate(String type, byte[] encoding) {
            super(type);
            // don't copy to allow null parameter in test
            this.encoding = encoding;
        }

        public byte[] getEncoded() throws CertificateEncodingException {
            // do copy to force NPE in test
            return encoding.clone();
        }

        public void verify(PublicKey key) throws CertificateException,
                NoSuchAlgorithmException, InvalidKeyException,
                NoSuchProviderException, SignatureException {
        }

        public void verify(PublicKey key, String sigProvider)
                throws CertificateException, NoSuchAlgorithmException,
                InvalidKeyException, NoSuchProviderException,
                SignatureException {
        }

        public String toString() {
            return "[My test Certificate, type: " + getType() + "]";
        }

        public PublicKey getPublicKey() {
            return new PublicKey() {
                public String getAlgorithm() {
                    return "DSA";
                }

                public byte[] getEncoded() {
                    return new byte[] { (byte) 1, (byte) 2, (byte) 3 };
                }

                public String getFormat() {
                    return "TEST_FORMAT";
                }
            };
        }

    }
}
