Package javax.crypto.spec

Examples of javax.crypto.spec.DHParameterSpec

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        {
            DHParameter params = DHParameter.getInstance(seq);

            if (params.getL() != null)
            {
                this.dhSpec = new DHParameterSpec(params.getP(), params.getG(), params.getL().intValue());
            }
            else
            {
                this.dhSpec = new DHParameterSpec(params.getP(), params.getG());
            }
        }
        else if (id.equals(X9ObjectIdentifiers.dhpublicnumber))
        {
            DHDomainParameters params = DHDomainParameters.getInstance(seq);

            this.dhSpec = new DHParameterSpec(params.getP().getValue(), params.getG().getValue());
        }
        else
        {
            throw new IllegalArgumentException("unknown algorithm type: " + id);
        }
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    JCEDHPrivateKey(
        DHPrivateKeyParameters  params)
    {
        this.x = params.getX();
        this.dhSpec = new DHParameterSpec(params.getParameters().getP(), params.getParameters().getG(), params.getParameters().getL());
    }
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        ObjectInputStream   in)
        throws IOException, ClassNotFoundException
    {
        x = (BigInteger)in.readObject();

        this.dhSpec = new DHParameterSpec((BigInteger)in.readObject(), (BigInteger)in.readObject(), in.readInt());
    }
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        int         privateValueSize,
        BigInteger  g,
        BigInteger  p)
        throws Exception
    {
        DHParameterSpec             dhParams = new DHParameterSpec(p, g, privateValueSize);

        KeyPairGenerator keyGen = KeyPairGenerator.getInstance(algName, "BC");

        keyGen.initialize(dhParams);

        testTwoParty(algName, size, privateValueSize, keyGen);

        KeyPair aKeyPair = keyGen.generateKeyPair();

        //
        // public key encoding test
        //
        byte[]              pubEnc = aKeyPair.getPublic().getEncoded();
        KeyFactory          keyFac = KeyFactory.getInstance(algName, "BC");
        X509EncodedKeySpec  pubX509 = new X509EncodedKeySpec(pubEnc);
        DHPublicKey         pubKey = (DHPublicKey)keyFac.generatePublic(pubX509);
        DHParameterSpec     spec = pubKey.getParams();

        if (!spec.getG().equals(dhParams.getG()) || !spec.getP().equals(dhParams.getP()))
        {
            fail(size + " bit public key encoding/decoding test failed on parameters");
        }

        if (!((DHPublicKey)aKeyPair.getPublic()).getY().equals(pubKey.getY()))
        {
            fail(size + " bit public key encoding/decoding test failed on y value");
        }

        //
        // public key serialisation test
        //
        pubKey = (DHPublicKey)serializeDeserialize(aKeyPair.getPublic());
        spec = pubKey.getParams();

        if (!spec.getG().equals(dhParams.getG()) || !spec.getP().equals(dhParams.getP()))
        {
            fail(size + " bit public key serialisation test failed on parameters");
        }

        if (!((DHPublicKey)aKeyPair.getPublic()).getY().equals(pubKey.getY()))
        {
            fail(size + " bit public key serialisation test failed on y value");
        }

        if (!aKeyPair.getPublic().equals(pubKey))
        {
            fail("equals test failed");
        }

        if (aKeyPair.getPublic().hashCode() != pubKey.hashCode())
        {
            fail("hashCode test failed");
        }

        //
        // private key encoding test
        //
        byte[]              privEnc = aKeyPair.getPrivate().getEncoded();
        PKCS8EncodedKeySpec privPKCS8 = new PKCS8EncodedKeySpec(privEnc);
        DHPrivateKey        privKey = (DHPrivateKey)keyFac.generatePrivate(privPKCS8);

        spec = privKey.getParams();

        if (!spec.getG().equals(dhParams.getG()) || !spec.getP().equals(dhParams.getP()))
        {
            fail(size + " bit private key encoding/decoding test failed on parameters");
        }

        if (!((DHPrivateKey)aKeyPair.getPrivate()).getX().equals(privKey.getX()))
        {
            fail(size + " bit private key encoding/decoding test failed on y value");
        }

        //
        // private key serialisation test
        //
        privKey = (DHPrivateKey)serializeDeserialize(aKeyPair.getPrivate());
        spec = privKey.getParams();

        if (!spec.getG().equals(dhParams.getG()) || !spec.getP().equals(dhParams.getP()))
        {
            fail(size + " bit private key serialisation test failed on parameters");
        }

        if (!((DHPrivateKey)aKeyPair.getPrivate()).getX().equals(privKey.getX()))
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        int         privateValueSize,
        BigInteger  g,
        BigInteger  p)
        throws Exception
    {
        DHParameterSpec             dhParams = new DHParameterSpec(p, g, privateValueSize);

        KeyPairGenerator keyGen = KeyPairGenerator.getInstance("DH", "BC");

        keyGen.initialize(dhParams);
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        if (!areEqual(encodeParams, encodeParams_2))
        {
            fail("encode/decode parameters failed");
        }

        DHParameterSpec dhP = (DHParameterSpec)params.getParameterSpec(DHParameterSpec.class);

        testGP("DH", size, 0, dhP.getG(), dhP.getP());
    }
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        int         privateValueSize,
        BigInteger  g,
        BigInteger  p)
        throws Exception
    {
        DHParameterSpec             dhParams = new DHParameterSpec(p, g, privateValueSize);
        String                      algName = "DH";
        int                         size = p.bitLength();

        new BouncyCastleProvider().setParameter(ConfigurableProvider.DH_DEFAULT_PARAMS, dhParams);

    KeyPairGenerator keyGen = KeyPairGenerator.getInstance(algName, "BC");

        keyGen.initialize(dhParams.getP().bitLength());

        testTwoParty("DH", size, privateValueSize, keyGen);

        KeyPair aKeyPair = keyGen.generateKeyPair();

        new BouncyCastleProvider().setParameter(ConfigurableProvider.DH_DEFAULT_PARAMS, null);

        //
        // public key encoding test
        //
        byte[]              pubEnc = aKeyPair.getPublic().getEncoded();
        KeyFactory          keyFac = KeyFactory.getInstance(algName, "BC");
        X509EncodedKeySpec  pubX509 = new X509EncodedKeySpec(pubEnc);
        DHPublicKey         pubKey = (DHPublicKey)keyFac.generatePublic(pubX509);
        DHParameterSpec     spec = pubKey.getParams();

        if (!spec.getG().equals(dhParams.getG()) || !spec.getP().equals(dhParams.getP()))
        {
            fail(size + " bit public key encoding/decoding test failed on parameters");
        }

        if (!((DHPublicKey)aKeyPair.getPublic()).getY().equals(pubKey.getY()))
        {
            fail(size + " bit public key encoding/decoding test failed on y value");
        }

        //
        // public key serialisation test
        //
        ByteArrayOutputStream   bOut = new ByteArrayOutputStream();
        ObjectOutputStream      oOut = new ObjectOutputStream(bOut);

        oOut.writeObject(aKeyPair.getPublic());

        ByteArrayInputStream   bIn = new ByteArrayInputStream(bOut.toByteArray());
        ObjectInputStream      oIn = new ObjectInputStream(bIn);

        pubKey = (DHPublicKey)oIn.readObject();
        spec = pubKey.getParams();

        if (!spec.getG().equals(dhParams.getG()) || !spec.getP().equals(dhParams.getP()))
        {
            fail(size + " bit public key serialisation test failed on parameters");
        }

        if (!((DHPublicKey)aKeyPair.getPublic()).getY().equals(pubKey.getY()))
        {
            fail(size + " bit public key serialisation test failed on y value");
        }

        //
        // private key encoding test
        //
        byte[]              privEnc = aKeyPair.getPrivate().getEncoded();
        PKCS8EncodedKeySpec privPKCS8 = new PKCS8EncodedKeySpec(privEnc);
        DHPrivateKey        privKey = (DHPrivateKey)keyFac.generatePrivate(privPKCS8);

        spec = privKey.getParams();

        if (!spec.getG().equals(dhParams.getG()) || !spec.getP().equals(dhParams.getP()))
        {
            fail(size + " bit private key encoding/decoding test failed on parameters");
        }

        if (!((DHPrivateKey)aKeyPair.getPrivate()).getX().equals(privKey.getX()))
        {
            fail(size + " bit private key encoding/decoding test failed on y value");
        }

        //
        // private key serialisation test
        //
        bOut = new ByteArrayOutputStream();
        oOut = new ObjectOutputStream(bOut);

        oOut.writeObject(aKeyPair.getPrivate());

        bIn = new ByteArrayInputStream(bOut.toByteArray());
        oIn = new ObjectInputStream(bIn);

        privKey = (DHPrivateKey)oIn.readObject();
        spec = privKey.getParams();

        if (!spec.getG().equals(dhParams.getG()) || !spec.getP().equals(dhParams.getP()))
        {
            fail(size + " bit private key serialisation test failed on parameters");
        }

        if (!((DHPrivateKey)aKeyPair.getPrivate()).getX().equals(privKey.getX()))
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    }

    private void testDESAndDESede(BigInteger g, BigInteger p)
        throws Exception
    {
        DHParameterSpec             dhParams = new DHParameterSpec(p, g, 256);

        KeyPairGenerator keyGen = KeyPairGenerator.getInstance("DH", "BC");

        keyGen.initialize(dhParams);
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    private void testConfig()
    {
        ConfigurableProvider prov = new BouncyCastleProvider();

        DHParameterSpec dhSpec512 = new DHParameterSpec(
            new BigInteger("fca682ce8e12caba26efccf7110e526db078b05edecbcd1eb4a208f3ae1617ae01f35b91a47e6df63413c5e12ed0899bcd132acd50d99151bdc43ee737592e17", 16),
            new BigInteger("678471b27a9cf44ee91a49c5147db1a9aaf244f05a434d6486931d2d14271b9e35030b71fd73da179069b32e2935630e1c2062354d0da20a6c416e50be794ca4", 16),
            384);

        DHParameterSpec dhSpec768 = new DHParameterSpec(
             new BigInteger("e9e642599d355f37c97ffd3567120b8e25c9cd43e927b3a9670fbec5d890141922d2c3b3ad2480093799869d1e846aab49fab0ad26d2ce6a22219d470bce7d777d4a21fbe9c270b57f607002f3cef8393694cf45ee3688c11a8c56ab127a3daf", 16),
             new BigInteger("30470ad5a005fb14ce2d9dcd87e38bc7d1b1c5facbaecbe95f190aa7a31d23c4dbbcbe06174544401a5b2c020965d8c2bd2171d3668445771f74ba084d2029d83c1c158547f3a9f1a2715be23d51ae4d3e5a1f6a7064f316933a346d3f529252", 16),
             384);

        DHParameterSpec dhSpec1024 = new DHParameterSpec(
                    new BigInteger("f7e1a085d69b3ddecbbcab5c36b857b97994afbbfa3aea82f9574c0b3d0782675159578ebad4594fe67107108180b449167123e84c281613b7cf09328cc8a6e13c167a8b547c8d28e0a3ae1e2bb3a675916ea37f0bfa213562f1fb627a01243bcca4f1bea8519089a883dfe15ae59f06928b665e807b552564014c3bfecf492a", 16),
                    new BigInteger("fd7f53811d75122952df4a9c2eece4e7f611b7523cef4400c31e3f80b6512669455d402251fb593d8d58fabfc5f5ba30f6cb9b556cd7813b801d346ff26660b76b9950a5a49f9fe8047b1022c24fbba9d7feb7c61bf83b57e7c6a8a6150f04fb83f6d3c51ec3023554135a169132f675f3ae2b61d72aeff22203199dd14801c7", 16),
                    512);

        prov.setParameter(ConfigurableProvider.DH_DEFAULT_PARAMS, dhSpec512);

        if (!dhSpec512.equals(BouncyCastleProvider.CONFIGURATION.getDHDefaultParameters(512)))
        {
            fail("config mismatch");
        }

        if (BouncyCastleProvider.CONFIGURATION.getDHDefaultParameters(768) != null)
        {
            fail("config found when none expected");
        }

        prov.setParameter(ConfigurableProvider.DH_DEFAULT_PARAMS, new DHParameterSpec[] { dhSpec512, dhSpec768, dhSpec1024 });

        if (!dhSpec512.equals(BouncyCastleProvider.CONFIGURATION.getDHDefaultParameters(512)))
        {
            fail("512 config mismatch");
        }

        if (!dhSpec768.equals(BouncyCastleProvider.CONFIGURATION.getDHDefaultParameters(768)))
        {
            fail("768 config mismatch");
        }

        if (!dhSpec1024.equals(BouncyCastleProvider.CONFIGURATION.getDHDefaultParameters(1024)))
        {
            fail("1024 config mismatch");
        }

        prov.setParameter(ConfigurableProvider.DH_DEFAULT_PARAMS, null);

        if (BouncyCastleProvider.CONFIGURATION.getDHDefaultParameters(512) != null)
        {
            fail("config found for 512 when none expected");
        }

        if (BouncyCastleProvider.CONFIGURATION.getDHDefaultParameters(768) != null)
        {
            fail("config found for 768 when none expected");
        }

        prov.setParameter(ConfigurableProvider.THREAD_LOCAL_DH_DEFAULT_PARAMS, dhSpec512);

        if (!dhSpec512.equals(BouncyCastleProvider.CONFIGURATION.getDHDefaultParameters(512)))
        {
            fail("config mismatch");
        }

        if (BouncyCastleProvider.CONFIGURATION.getDHDefaultParameters(768) != null)
        {
            fail("config found when none expected");
        }

        prov.setParameter(ConfigurableProvider.THREAD_LOCAL_DH_DEFAULT_PARAMS, new DHParameterSpec[] { dhSpec512, dhSpec768, dhSpec1024 });

        if (!dhSpec512.equals(BouncyCastleProvider.CONFIGURATION.getDHDefaultParameters(512)))
        {
            fail("512 config mismatch");
        }

        if (!dhSpec768.equals(BouncyCastleProvider.CONFIGURATION.getDHDefaultParameters(768)))
        {
            fail("768 config mismatch");
        }

        if (!dhSpec1024.equals(BouncyCastleProvider.CONFIGURATION.getDHDefaultParameters(1024)))
        {
            fail("1024 config mismatch");
        }

        prov.setParameter(ConfigurableProvider.THREAD_LOCAL_DH_DEFAULT_PARAMS, null);
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        return elSpec;
    }
   
    public DHParameterSpec getParams()
    {
        return new DHParameterSpec(elSpec.getP(), elSpec.getG());
    }
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