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

Example 46 with EllipticCurve

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

the class EllipticCurveTest method testEllipticCurveECFieldBigIntegerBigIntegerbyteArray02.

/**
     * Test #2 for <code>EllipticCurve(ECField, BigInteger, BigInteger, byte[])</code>
     * constructor<br>
     * Assertion: throws <code>NullPointerException</code> if <code>field</code>,
     * <code>a</code> or <code>b</code> is <code>null</code><br>
     * Test preconditions: pass <code>null</code> as mentioned parameters<br>
     * Expected: must throw <code>NullPointerException</code>
     */
public final void testEllipticCurveECFieldBigIntegerBigIntegerbyteArray02() {
    // test case 1 parameters set
    ECFieldFp f = null;
    BigInteger a = BigInteger.ONE;
    BigInteger b = BigInteger.valueOf(19L);
    byte[] seed = new byte[24];
    // perform test case 1
    try {
        new EllipticCurve(f, a, b, seed);
        fail("#1: Expected NPE not thrown");
    } catch (NullPointerException ok) {
    }
    // test case 2 parameters set,
    f = new ECFieldFp(BigInteger.valueOf(23L));
    a = null;
    b = BigInteger.valueOf(19L);
    seed = new byte[24];
    // perform test case 2
    try {
        new EllipticCurve(f, a, b, seed);
        fail("#2: Expected NPE not thrown");
    } catch (NullPointerException ok) {
    }
    // test case 3 parameters set,
    f = new ECFieldFp(BigInteger.valueOf(23L));
    a = BigInteger.ONE;
    b = null;
    seed = new byte[24];
    // perform test case 2
    try {
        new EllipticCurve(f, a, b, seed);
        fail("#3: Expected NPE not thrown");
    } catch (NullPointerException ok) {
    }
}

Example 47 with EllipticCurve

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

the class EllipticCurveTest method testEllipticCurveECFieldBigIntegerBigInteger04.

/**
     * Test #4 for <code>EllipticCurve(ECField, BigInteger, BigInteger, byte[])</code>
     * constructor<br>
     * Assertion: throws <code>IllegalArgumentException</code> if
     * <code>a</code> or <code>b</code> is not <code>null</code> and not in
     * the <code>field</code><br>
     * Test preconditions: pass <code>a</code>, <code>b</code> which are
     * not in the <code>field</code> of type <code>ECFieldF2m</code><br>
     * Expected: must throw <code>IllegalArgumentException</code>
     */
public final void testEllipticCurveECFieldBigIntegerBigInteger04() {
    // test case 1 parameters set,
    // a is not in field
    ECFieldF2m f = new ECFieldF2m(5);
    BigInteger a = BigInteger.valueOf(32L);
    BigInteger b = BigInteger.valueOf(19L);
    // perform test case 1
    try {
        new EllipticCurve(f, a, b);
        fail("#1: Expected IAE not thrown");
    } catch (IllegalArgumentException ok) {
    }
    // test case 2 parameters set,
    // b is not in field
    f = new ECFieldF2m(5);
    a = BigInteger.valueOf(19L);
    b = BigInteger.valueOf(32L);
    // perform test case 2
    try {
        new EllipticCurve(f, a, b);
        fail("#2: Expected IAE not thrown");
    } catch (IllegalArgumentException ok) {
    }
    // test case 3 parameters set,
    // both a and b are not in field
    f = new ECFieldF2m(5);
    a = BigInteger.valueOf(32L);
    b = BigInteger.valueOf(43L);
    // perform test case 3
    try {
        new EllipticCurve(f, a, b);
        fail("#3: Expected IAE not thrown");
    } catch (IllegalArgumentException ok) {
    }
}

Example 48 with EllipticCurve

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

the class EllipticCurveTest method testGetSeed02.

/**
     * Test #2 for <code>getSeed()</code> method<br>
     * Assertion: returned array is copied to prevent subsequent modification<br>
     * Test preconditions: <code>ECFieldF2m</code> instance
     * created using valid parameters; <code>getSeed()</code>
     * called and then returned array modified<br>
     * Expected: internal state must not be affected by the modification
     */
public final void testGetSeed02() {
    ECFieldFp f = new ECFieldFp(BigInteger.valueOf(23L));
    BigInteger a = BigInteger.ONE;
    BigInteger b = BigInteger.valueOf(19L);
    byte[] seed = new byte[24];
    EllipticCurve c = new EllipticCurve(f, a, b, seed.clone());
    byte[] seedRet = c.getSeed();
    // modify returned array
    seedRet[0] = (byte) 1;
    // check that above modification did not changed
    // internal state of test object
    assertTrue(Arrays.equals(seed, c.getSeed()));
}

Example 49 with EllipticCurve

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

the class ECParameterSpecTest method setUp.

protected void setUp() throws Exception {
    super.setUp();
    curve = new EllipticCurve(new ECFieldF2m(2), BigInteger.valueOf(1), BigInteger.valueOf(1));
    ecpoint = new ECPoint(BigInteger.valueOf(1), BigInteger.valueOf(1));
    ecps = new ECParameterSpec(curve, ecpoint, BigInteger.valueOf(1), 1);
}

Example 50 with EllipticCurve

use of java.security.spec.EllipticCurve 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();
    }
}