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

Example 71 with EllipticCurve

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

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 72 with EllipticCurve

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

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);
}

Example 73 with EllipticCurve

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

the class EllipticCurveTest method testGetSeed03.

/**
 * Test #3 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<br>
 * Expected: repeated method calls must return different refs
 */
public final void testGetSeed03() {
    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);
    c.getSeed();
    assertNotSame(c.getSeed(), c.getSeed());
}

Example 74 with EllipticCurve

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

the class EllipticCurveTest method testGetA.

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

Example 75 with EllipticCurve

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

the class EllipticCurveTest method testEllipticCurveECFieldBigIntegerBigIntegerbyteArray05.

/**
 * Test #5 for <code>EllipticCurve(ECField, BigInteger, BigInteger, byte[])</code>
 * constructor<br>
 * Assertion: array <code>seed</code> is copied to prevent subsequent modification<br>
 * Test preconditions: pass <code>seed</code> to the ctor then modify it<br>
 * Expected: getSeed() must return unmodified array
 */
public final void testEllipticCurveECFieldBigIntegerBigIntegerbyteArray05() {
    ECFieldF2m f = new ECFieldF2m(5);
    BigInteger a = BigInteger.valueOf(0L);
    BigInteger b = BigInteger.valueOf(19L);
    byte[] seed = new byte[24];
    byte[] seedCopy = seed.clone();
    EllipticCurve c = new EllipticCurve(f, a, b, seedCopy);
    // modify array passed
    seedCopy[0] = (byte) 1;
    // check that above modification did not changed
    // internal state of test object
    assertTrue(Arrays.equals(seed, c.getSeed()));
}