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

 *

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

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 * 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.

 *

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/**

 * @test

 * @bug 4925866

 * @summary ensures various salt lengths can be used for

 * HmacPBESHA1.

 * @author Valerie Peng

 */

import java.io.*;

import java.util.*;

import java.security.*;

import javax.crypto.*;

import javax.crypto.spec.*;

import javax.crypto.interfaces.PBEKey;

public class HmacSaltLengths {

    private static void runTest(String alg, byte[] plaintext,

                                char[] password, Provider p)

        throws Exception {

        Mac mac = Mac.getInstance(alg, p);

        PBEKeySpec pbeKeySpec = new PBEKeySpec(password);

        SecretKeyFactory keyFac = SecretKeyFactory.getInstance("PBE", p);

        SecretKey key = keyFac.generateSecret(pbeKeySpec);

        System.out.println("testing parameters with 4-byte salt...");

        PBEParameterSpec pbeParamSpec = new PBEParameterSpec

            (new byte[4], 1024);

        try {

            mac.init(key, pbeParamSpec);

            throw new Exception("ERROR: should throw IAPE for short salts");

        } catch (InvalidAlgorithmParameterException iape) {

            // expected; do nothing

        }

        System.out.println("testing parameters with 8-byte salt...");

        pbeParamSpec = new PBEParameterSpec(new byte[8], 1024);

        mac.init(key, pbeParamSpec);

        mac.doFinal(plaintext);

        System.out.println("testing parameters with 20-byte salt...");

        pbeParamSpec = new PBEParameterSpec(new byte[20], 1024);

        mac.init(key, pbeParamSpec);

        mac.doFinal(plaintext);

        System.out.println("testing parameters with 30-byte salt...");

        pbeParamSpec = new PBEParameterSpec(new byte[30], 1024);

        mac.init(key, pbeParamSpec);

        mac.doFinal(plaintext);

        System.out.println("passed: " + alg);

    }

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

        byte[] input = new byte[1024];

        new SecureRandom().nextBytes(input);

        char[] PASSWD = { 'p','a','s','s','w','o','r','d' };

        long start = System.currentTimeMillis();

        Provider p = Security.getProvider("SunJCE");

        System.out.println("Testing provider " + p.getName() + "...");

        runTest("HmacPBESHA1", input, PASSWD, p);

        System.out.println("All tests passed");

        long stop = System.currentTimeMillis();

        System.out.println("Done (" + (stop - start) + " ms).");

    }

}

class MyPBEKey implements PBEKey {

    char[] passwd;

    byte[] salt;

    int iCount;

    MyPBEKey(char[] passwd, byte[] salt, int iCount) {

        this.passwd = passwd;

        this.salt = salt;

        this.iCount = iCount;

    }

    public char[] getPassword() { return passwd; }

    public byte[] getSalt() { return salt; }

    public int getIterationCount() { return iCount; }

    public String getAlgorithm() { return "PBE"; }

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

    public byte[] getEncoded() { return null; }

}