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

Example 36 with EllipticCurve

use of java.security.spec.EllipticCurve in project j2objc by google.

the class EllipticCurveTest 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() {
    int hc = 0;
    EllipticCurve f = new EllipticCurve(new ECFieldFp(BigInteger.valueOf(23L)), BigInteger.ONE, BigInteger.valueOf(19L), new byte[24]);
    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());
}

Example 37 with EllipticCurve

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

the class ECNamedCurveSpec method convertCurve.

private static EllipticCurve convertCurve(ECCurve curve, byte[] seed) {
    if (curve instanceof ECCurve.Fp) {
        return new EllipticCurve(new ECFieldFp(((ECCurve.Fp) curve).getQ()), curve.getA().toBigInteger(), curve.getB().toBigInteger(), seed);
    } else {
        ECCurve.F2m curveF2m = (ECCurve.F2m) curve;
        int[] ks;
        if (curveF2m.isTrinomial()) {
            ks = new int[] { curveF2m.getK1() };
            return new EllipticCurve(new ECFieldF2m(curveF2m.getM(), ks), curve.getA().toBigInteger(), curve.getB().toBigInteger(), seed);
        } else {
            ks = new int[] { curveF2m.getK3(), curveF2m.getK2(), curveF2m.getK1() };
            return new EllipticCurve(new ECFieldF2m(curveF2m.getM(), ks), curve.getA().toBigInteger(), curve.getB().toBigInteger(), seed);
        }
    }
}

Example 38 with EllipticCurve

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

the class EllipticCurveTest method testGetB.

/**
     * Test for <code>getB()</code> method<br>
     * Assertion: returns coefficient <code>b</code><br>
     * Test preconditions: <code>ECFieldF2m</code> instance
     * created using valid parameters<br>
     * Expected: must return coefficient <code>b</code> which is equal
     * to the one passed to the constructor; (both must refer
     * the same object)
     */
public final void testGetB() {
    ECFieldF2m f = new ECFieldF2m(5);
    BigInteger a = BigInteger.valueOf(5L);
    BigInteger b = BigInteger.valueOf(19L);
    EllipticCurve c = new EllipticCurve(f, a, b);
    assertEquals(b, c.getB());
    assertSame(b, c.getB());
}

Example 39 with EllipticCurve

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

the class EllipticCurveTest method testGetSeed01.

/**
     * Test #1 for <code>getSeed()</code> method<br>
     * Assertion: returns <code>seed</code><br>
     * Test preconditions: <code>ECFieldF2m</code> instance
     * created using valid parameters<br>
     * Expected: must return <code>seed</code> which is equal
     * to the one passed to the constructor
     */
public final void testGetSeed01() {
    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);
    byte[] seedRet = c.getSeed();
    assertNotNull(seedRet);
    assertTrue(Arrays.equals(seed, seedRet));
}

Example 40 with EllipticCurve

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

the class ECPublicKeySpecTest method setUp.

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