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/*

 * @test

 * @bug 4898479

 * @summary Verify that the parity bits are set correctly

 * @author Andreas Sterbenz

 * @key randomness

 * @modules jdk.crypto.cryptoki

 * @run main/othervm DESParity

 * @run main/othervm DESParity sm

 */

import java.security.Provider;

import java.util.Random;

import javax.crypto.SecretKey;

import javax.crypto.SecretKeyFactory;

import javax.crypto.spec.DESKeySpec;

import javax.crypto.spec.DESedeKeySpec;

import javax.crypto.spec.SecretKeySpec;

public class DESParity extends PKCS11Test {

    @Override

    public void main(Provider p) throws Exception {

        if (p.getService("SecretKeyFactory", "DES") == null) {

            System.out.println("Not supported by provider, skipping");

            return;

        }

        Random random = new Random();

        SecretKeyFactory kf;

        // DES

        kf = SecretKeyFactory.getInstance("DES", p);

        for (int i = 0; i < 10; i++ ) {

            byte[] b = new byte[8];

            random.nextBytes(b);

            SecretKeySpec spec = new SecretKeySpec(b, "DES");

            SecretKey key = kf.generateSecret(spec);

            if (DESKeySpec.isParityAdjusted(key.getEncoded(), 0) == false) {

                throw new Exception("DES key not parity adjusted");

            }

        }

        // DESede

        kf = SecretKeyFactory.getInstance("DESede", p);

        for (int i = 0; i < 10; i++ ) {

            byte[] b = new byte[24];

            random.nextBytes(b);

            SecretKeySpec spec = new SecretKeySpec(b, "DESede");

            SecretKey key = kf.generateSecret(spec);

            if (DESedeKeySpec.isParityAdjusted(key.getEncoded(), 0) == false) {

                throw new Exception("DESede key not parity adjusted");

            }

        }

    }

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

        main(new DESParity(), args);

    }

}