/*

 * Copyright 2006-2007 Sun Microsystems, Inc.  All Rights Reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

/**

 * @test

 * @bug 6405536

 * @summary Verify that we can parse ECPrivateKeys from PKCS#12 and use them

 * @author Andreas Sterbenz

 * @library ..

 */

import java.io.*;

import java.util.*;

import java.security.*;

import java.security.interfaces.*;

import java.security.cert.*;

import java.security.cert.Certificate;

import javax.security.auth.x500.X500Principal;

public class ReadPKCS12 extends PKCS11Test {

    private final static boolean COPY = false;

    public static void main(String[] args) throws Exception {

        main(new ReadPKCS12());

    }

    public void main(Provider p) throws Exception {

        if (p.getService("Signature", "SHA1withECDSA") == null) {

            System.out.println("Provider does not support ECDSA, skipping...");

            return;

        }

        Security.insertProviderAt(p, 1);

        CertificateFactory factory = CertificateFactory.getInstance("X.509");

        try {

            // undocumented way to clear the Sun internal certificate cache

            factory.generateCertificate(null);

        } catch (CertificateException e) {

            // ignore

        }

        KeyStore ks2;

        if (COPY) {

            ks2 = KeyStore.getInstance("JKS");

            InputStream in = new FileInputStream("keystore.old");

            ks2.load(in, "passphrase".toCharArray());

            in.close();

        }

        File dir = new File(BASE, "pkcs12");

        File closedDir = new File(CLOSED_BASE, "pkcs12");

        Map<String,char[]> passwords = new HashMap<String,char[]>();

        BufferedReader reader = new BufferedReader(new FileReader((new File(BASE, "p12passwords.txt"))));

        while (true) {

            String line = reader.readLine();

            if (line == null) {

                break;

            }

            line = line.trim();

            if ((line.length() == 0) || line.startsWith("#")) {

                continue;

            }

            String[] s = line.split(" ");

            passwords.put(s[0], s[1].toCharArray());

        }

        reader.close();

        for (File file : concat(dir.listFiles(), closedDir.listFiles())) {

            String name = file.getName();

            if (file.isFile() == false) {

                continue;

            }

            System.out.println();

            System.out.println("Reading " + name + "...");

            char[] password = passwords.get(name);

            if (password == null) {

                password = passwords.get("*");

            }

            InputStream in = new FileInputStream(file);

            KeyStore ks = KeyStore.getInstance("PKCS12");

            ks.load(in, password);

            in.close();

            List<String> aliases = Collections.list(ks.aliases());

            System.out.println("Aliases: " + aliases);

            for (String alias : aliases) {

                PrivateKey privateKey = (PrivateKey)ks.getKey(alias, password);

                Certificate[] certs = ks.getCertificateChain(alias);

                PublicKey publicKey = certs[0].getPublicKey();

                System.out.println("Certificates: " + certs.length);

                System.out.println(privateKey);

                System.out.println(publicKey);

                if (COPY) {

                    ks2.setKeyEntry(alias, privateKey, "passphrase".toCharArray(), certs);

                }

                verifyCerts(certs);

                Random random = new Random();

                byte[] data = new byte[1024];

                random.nextBytes(data);

                Signature s = Signature.getInstance("SHA1withECDSA");

                s.initSign(privateKey);

                s.update(data);

                byte[] sig = s.sign();

                s.initVerify(publicKey);

                s.update(data);

                if (s.verify(sig) == false) {

                    throw new Exception("Signature does not verify");

                }

                System.out.println("Verified public/private key match");

            }

        }

        if (COPY) {

            OutputStream out = new FileOutputStream("keystore.new");

            ks2.store(out, "passphrase".toCharArray());

            out.close();

        }

        Security.removeProvider(p.getName());

        System.out.println("OK");

    }

    private static void verifyCerts(Certificate[] certs) throws Exception {

        int n = certs.length;

        for (int i = 0; i < n - 1; i++) {

            X509Certificate cert = (X509Certificate)certs[i];

            X509Certificate issuer = (X509Certificate)certs[i + 1];

            if (cert.getIssuerX500Principal().equals(issuer.getSubjectX500Principal()) == false) {

                throw new Exception("Certificates do not chain");

            }

            cert.verify(issuer.getPublicKey());

            System.out.println("Verified: " + cert.getSubjectX500Principal());

        }

        X509Certificate last = (X509Certificate)certs[n - 1];

        // if self-signed, verify the final cert

        if (last.getIssuerX500Principal().equals(last.getSubjectX500Principal())) {

            last.verify(last.getPublicKey());

            System.out.println("Verified: " + last.getSubjectX500Principal());

        }

    }

}