Package java.security.spec

Examples of java.security.spec.EllipticCurve

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        this.algorithm = algorithm;
        this.q = params.getQ();

        if (spec == null)
        {
            EllipticCurve ellipticCurve = EC5Util.convertCurve(dp.getCurve(), dp.getSeed());

            this.ecSpec = createSpec(ellipticCurve, dp);
        }
        else
        {
            EllipticCurve ellipticCurve = EC5Util.convertCurve(spec.getCurve(), spec.getSeed());

            this.ecSpec = EC5Util.convertSpec(ellipticCurve, spec);
        }
    }
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            gostParams = new GOST3410PublicKeyAlgParameters((ASN1Sequence)info.getAlgorithmId().getParameters());

            ECNamedCurveParameterSpec spec = ECGOST3410NamedCurveTable.getParameterSpec(ECGOST3410NamedCurves.getName(gostParams.getPublicKeyParamSet()));

            ECCurve curve = spec.getCurve();
            EllipticCurve ellipticCurve = EC5Util.convertCurve(curve, spec.getSeed());

            this.q = curve.createPoint(new BigInteger(1, x), new BigInteger(1, y), false);

            ecSpec = new ECNamedCurveSpec(
                    ECGOST3410NamedCurves.getName(gostParams.getPublicKeyParamSet()),
                    ellipticCurve,
                    new ECPoint(
                            spec.getG().getX().toBigInteger(),
                            spec.getG().getY().toBigInteger()),
                            spec.getN(), spec.getH());

        }
        else
        {
            X962Parameters params = new X962Parameters((DERObject)info.getAlgorithmId().getParameters());
            ECCurve                 curve;
            EllipticCurve           ellipticCurve;

            if (params.isNamedCurve())
            {
                DERObjectIdentifier oid = (DERObjectIdentifier)params.getParameters();
                X9ECParameters ecP = ECUtil.getNamedCurveByOid(oid);
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        this.d = spec.getD();

        if (spec.getParams() != null) // can be null if implicitlyCA
        {
            ECCurve curve = spec.getParams().getCurve();
            EllipticCurve ellipticCurve;

            ellipticCurve = EC5Util.convertCurve(curve, spec.getParams().getSeed());

            this.ecSpec = EC5Util.convertSpec(ellipticCurve, spec.getParams());
        }
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        this.algorithm = algorithm;
        this.d = params.getD();

        if (spec == null)
        {
            EllipticCurve ellipticCurve = EC5Util.convertCurve(dp.getCurve(), dp.getSeed());

            this.ecSpec = new ECParameterSpec(
                            ellipticCurve,
                            new ECPoint(
                                    dp.getG().getX().toBigInteger(),
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        this.algorithm = algorithm;
        this.d = params.getD();

        if (spec == null)
        {
            EllipticCurve ellipticCurve = EC5Util.convertCurve(dp.getCurve(), dp.getSeed());

            this.ecSpec = new ECParameterSpec(
                            ellipticCurve,
                            new ECPoint(
                                    dp.getG().getX().toBigInteger(),
                                    dp.getG().getY().toBigInteger()),
                            dp.getN(),
                            dp.getH().intValue());
        }
        else
        {
            EllipticCurve ellipticCurve = EC5Util.convertCurve(spec.getCurve(), spec.getSeed());
           
            this.ecSpec = new ECParameterSpec(
                                ellipticCurve,
                                new ECPoint(
                                        spec.getG().getX().toBigInteger(),
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            X9ECParameters ecP = ECUtil.getNamedCurveByOid(oid);

            if (ecP == null) // GOST Curve
            {
                ECDomainParameters gParam = ECGOST3410NamedCurves.getByOID(oid);
                EllipticCurve ellipticCurve = EC5Util.convertCurve(gParam.getCurve(), gParam.getSeed());

                ecSpec = new ECNamedCurveSpec(
                        ECGOST3410NamedCurves.getName(oid),
                        ellipticCurve,
                        new ECPoint(
                                gParam.getG().getX().toBigInteger(),
                                gParam.getG().getY().toBigInteger()),
                        gParam.getN(),
                        gParam.getH());
            }
            else
            {
                EllipticCurve ellipticCurve = EC5Util.convertCurve(ecP.getCurve(), ecP.getSeed());

                ecSpec = new ECNamedCurveSpec(
                        ECUtil.getCurveName(oid),
                        ellipticCurve,
                        new ECPoint(
                                ecP.getG().getX().toBigInteger(),
                                ecP.getG().getY().toBigInteger()),
                        ecP.getN(),
                        ecP.getH());
            }
        }
        else if (params.isImplicitlyCA())
        {
            ecSpec = null;
        }
        else
        {
            X9ECParameters      ecP = new X9ECParameters((ASN1Sequence)params.getParameters());
            EllipticCurve       ellipticCurve = EC5Util.convertCurve(ecP.getCurve(), ecP.getSeed());

            this.ecSpec = new ECParameterSpec(
                ellipticCurve,
                new ECPoint(
                        ecP.getG().getX().toBigInteger(),
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     * Test preconditions: valid parameters passed<br>
     * Expected: must pass without any exceptions
     */
    public final void testECParameterSpec01() {
        // Valid (see note below) parameters set
        EllipticCurve c =
            new EllipticCurve(new ECFieldFp(BigInteger.valueOf(5L)),
                              BigInteger.ZERO,
                              BigInteger.valueOf(4L));
        ECPoint g = new ECPoint(BigInteger.ZERO, BigInteger.valueOf(2L));
        new ECParameterSpec(c, g, BigInteger.valueOf(5L), 10);       
    }
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     * Test preconditions: pass <code>null</code> as mentioned parameters<br>
     * Expected: must throw <code>NullPointerException</code>
     */
    public final void testECParameterSpec02() {
        // Valid (see note below) parameters set
        EllipticCurve curve =
            new EllipticCurve(new ECFieldFp(BigInteger.valueOf(5L)),
                              BigInteger.ZERO,
                              BigInteger.valueOf(4L));
        ECPoint generator = new ECPoint(BigInteger.ZERO, BigInteger.valueOf(2L));
        BigInteger order = BigInteger.valueOf(5L);

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     * Test preconditions: pass not positive as mentioned parameters<br>
     * Expected: must throw <code>IllegalArgumentException</code>
     */
    public final void testECParameterSpec03() {
        // Valid (see note below) parameters set
        EllipticCurve curve =
            new EllipticCurve(new ECFieldFp(BigInteger.valueOf(5L)),
                              BigInteger.ZERO,
                              BigInteger.valueOf(4L));
        ECPoint generator = new ECPoint(BigInteger.ZERO, BigInteger.valueOf(2L));


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     * Expected: must return cofactor value which is equal
     * to the one passed to the constructor
     */
    public final void testGetCofactor() {
        // Valid (see note below) parameters set
        EllipticCurve curve =
            new EllipticCurve(new ECFieldFp(BigInteger.valueOf(5L)),
                              BigInteger.ZERO,
                              BigInteger.valueOf(4L));
        ECPoint generator = new ECPoint(BigInteger.ZERO, BigInteger.valueOf(2L));
        BigInteger order = BigInteger.valueOf(5L);
        int cofactor = 10;
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Related Classes of java.security.spec.EllipticCurve

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  • org.apache.harmony.security.tests.java.security.spec.ECParameterSpec_ImplTest
  • org.apache.harmony.security.tests.java.security.spec.ECPrivateKeySpec_ImplTest
  • org.apache.harmony.security.tests.java.security.spec.ECPublicKeySpec_ImplTest
  • org.apache.harmony.security.tests.java.security.spec.EllipticCurve_ImplTest
  • org.apache.harmony.security.tests.java.security.spec.EllipticCurveTest
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  • org.bouncycastle.jcajce.provider.asymmetric.dstu.BCDSTU4145PublicKey
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  • org.bouncycastle.jcajce.provider.asymmetric.ec.BCECPublicKey
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