Examples with ECPoint java.security.spec.ECPoint used on opensource projects

Example 56 with ECPoint

use of java.security.spec.ECPoint in project robovm by robovm.

the class ECPointTest method testGetAffineX01.

/**
     * Test #1 for <code>getAffineX()</code> method<br>
     * Assertion: returns affine <code>x</code> coordinate<br>
     * Test preconditions: <code>ECPoint</code> instance
     * created using valid parameters<br>
     * Expected: must return affine <code>x</code> coordinate
     * which is equal to the one passed to the constructor;
     * (both must refer the same object)
     */
public final void testGetAffineX01() {
    BigInteger x = BigInteger.valueOf(-23456L);
    ECPoint p = new ECPoint(x, BigInteger.valueOf(23456L));
    BigInteger xRet = p.getAffineX();
    assertEquals(x, xRet);
    assertSame(x, xRet);
}

Example 57 with ECPoint

use of java.security.spec.ECPoint in project robovm by robovm.

the class ECPointTest method testEqualsObject01.

/**
     * Test #1 for <code>equals(Object other)</code> method<br>
     * Assertion: return true if this and other objects are equal<br>
     * Test preconditions: see test comments<br>
     * Expected: all objects in this test must be equal
     */
public final void testEqualsObject01() {
    // test case 1: must be equal to itself
    ECPoint p2 = null, p1 = new ECPoint(BigInteger.valueOf(-23456L), BigInteger.ONE);
    assertTrue(p1.equals(p1));
    // test case 2: equal objects
    p1 = new ECPoint(BigInteger.valueOf(-23456L), BigInteger.ONE);
    p2 = new ECPoint(BigInteger.valueOf(-23456L), BigInteger.valueOf(1L));
    assertTrue(p1.equals(p2) && p2.equals(p1));
    // test case 3: equal POINT_INFINITY object(s)
    p1 = ECPoint.POINT_INFINITY;
    p2 = ECPoint.POINT_INFINITY;
    assertTrue(p1.equals(p2) && p2.equals(p1));
}

Example 58 with ECPoint

use of java.security.spec.ECPoint in project robovm by robovm.

the class ECPointTest method testHashCode01.

/**
     * Test #1 for <code>hashCode()</code> method.<br>
     *
     * Assertion: must return the same value if invoked
     * repeatedly on the same object.
     */
public final void testHashCode01() {
    ECPoint f = new ECPoint(BigInteger.valueOf(-23457L), BigInteger.ONE);
    int hc = f.hashCode();
    assertTrue(hc == f.hashCode() && hc == f.hashCode() && hc == f.hashCode() && hc == f.hashCode() && hc == f.hashCode() && hc == f.hashCode() && hc == f.hashCode() && hc == f.hashCode());
    // the same for POINT_INFINITY
    hc = ECPoint.POINT_INFINITY.hashCode();
    assertTrue(hc == ECPoint.POINT_INFINITY.hashCode() && hc == ECPoint.POINT_INFINITY.hashCode() && hc == ECPoint.POINT_INFINITY.hashCode() && hc == ECPoint.POINT_INFINITY.hashCode() && hc == ECPoint.POINT_INFINITY.hashCode() && hc == ECPoint.POINT_INFINITY.hashCode() && hc == ECPoint.POINT_INFINITY.hashCode() && hc == ECPoint.POINT_INFINITY.hashCode());
}

Example 59 with ECPoint

use of java.security.spec.ECPoint in project XobotOS by xamarin.

the class JCEECPrivateKey method populateFromPrivKeyInfo.

private void populateFromPrivKeyInfo(PrivateKeyInfo info) {
    X962Parameters params = new X962Parameters((DERObject) info.getAlgorithmId().getParameters());
    if (params.isNamedCurve()) {
        DERObjectIdentifier oid = (DERObjectIdentifier) params.getParameters();
        X9ECParameters ecP = ECUtil.getNamedCurveByOid(oid);
        // BEGIN android-removed
        // 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
        // END android-removed
        {
            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(), ecP.getG().getY().toBigInteger()), ecP.getN(), ecP.getH().intValue());
    }
    if (info.getPrivateKey() instanceof DERInteger) {
        DERInteger derD = (DERInteger) info.getPrivateKey();
        this.d = derD.getValue();
    } else {
        ECPrivateKeyStructure ec = new ECPrivateKeyStructure((ASN1Sequence) info.getPrivateKey());
        this.d = ec.getKey();
        this.publicKey = ec.getPublicKey();
    }
}

Example 60 with ECPoint

use of java.security.spec.ECPoint in project robovm by robovm.

the class BCECPrivateKey method populateFromPrivKeyInfo.

private void populateFromPrivKeyInfo(PrivateKeyInfo info) throws IOException {
    X962Parameters params = X962Parameters.getInstance(info.getPrivateKeyAlgorithm().getParameters());
    if (params.isNamedCurve()) {
        ASN1ObjectIdentifier oid = ASN1ObjectIdentifier.getInstance(params.getParameters());
        X9ECParameters ecP = ECUtil.getNamedCurveByOid(oid);
        // BEGIN android-removed
        // 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
        // END android-removed
        {
            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 = X9ECParameters.getInstance(params.getParameters());
        EllipticCurve ellipticCurve = EC5Util.convertCurve(ecP.getCurve(), ecP.getSeed());
        this.ecSpec = new ECParameterSpec(ellipticCurve, new ECPoint(ecP.getG().getX().toBigInteger(), ecP.getG().getY().toBigInteger()), ecP.getN(), ecP.getH().intValue());
    }
    ASN1Encodable privKey = info.parsePrivateKey();
    if (privKey instanceof DERInteger) {
        DERInteger derD = DERInteger.getInstance(privKey);
        this.d = derD.getValue();
    } else {
        org.bouncycastle.asn1.sec.ECPrivateKey ec = org.bouncycastle.asn1.sec.ECPrivateKey.getInstance(privKey);
        this.d = ec.getKey();
        this.publicKey = ec.getPublicKey();
    }
}