本文整理汇总了Java中org.bouncycastle.math.ec.ECConstants.ZERO属性的典型用法代码示例。如果您正苦于以下问题：Java ECConstants.ZERO属性的具体用法？Java ECConstants.ZERO怎么用？Java ECConstants.ZERO使用的例子？那么恭喜您, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类org.bouncycastle.math.ec.ECConstants的用法示例。
在下文中一共展示了ECConstants.ZERO属性的8个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: createParameters
protected X9ECParameters createParameters()
{
// p = 2^160 - 2^32 - 2^14 - 2^12 - 2^9 - 2^8 - 2^7 - 2^3 - 2^2 - 1
BigInteger p = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFAC73");
BigInteger a = ECConstants.ZERO;
BigInteger b = BigInteger.valueOf(7);
byte[] S = null;
BigInteger n = fromHex("0100000000000000000001B8FA16DFAB9ACA16B6B3");
BigInteger h = BigInteger.valueOf(1);
ECCurve curve = new ECCurve.Fp(p, a, b);
// ECPoint G = curve.decodePoint(Hex.decode("02"
// + "3B4C382CE37AA192A4019E763036F4F5DD4D7EBB"));
ECPoint G = curve.decodePoint(Hex.decode("04"
+ "3B4C382CE37AA192A4019E763036F4F5DD4D7EBB"
+ "938CF935318FDCED6BC28286531733C3F03C4FEE"));
return new X9ECParameters(curve, G, n, h, S);
}
示例2: createParameters
protected X9ECParameters createParameters()
{
int m = 233;
int k = 74;
BigInteger a = ECConstants.ZERO;
BigInteger b = BigInteger.valueOf(1);
byte[] S = null;
BigInteger n = fromHex("8000000000000000000000000000069D5BB915BCD46EFB1AD5F173ABDF");
BigInteger h = BigInteger.valueOf(4);
ECCurve curve = configureCurve(new ECCurve.F2m(m, k, a, b, n, h));
//ECPoint G = curve.decodePoint(Hex.decode("02"
//+ "017232BA853A7E731AF129F22FF4149563A419C26BF50A4C9D6EEFAD6126"));
X9ECPoint G = new X9ECPoint(curve, Hex.decode("04"
+ "017232BA853A7E731AF129F22FF4149563A419C26BF50A4C9D6EEFAD6126"
+ "01DB537DECE819B7F70F555A67C427A8CD9BF18AEB9B56E0C11056FAE6A3"));
return new X9ECParameters(curve, G, n, h, S);
}
示例3: createParameters
protected X9ECParameters createParameters()
{
int m = 233;
int k = 74;
BigInteger a = ECConstants.ZERO;
BigInteger b = BigInteger.valueOf(1);
byte[] S = null;
BigInteger n = fromHex("8000000000000000000000000000069D5BB915BCD46EFB1AD5F173ABDF");
BigInteger h = BigInteger.valueOf(4);
ECCurve curve = configureCurve(new ECCurve.F2m(m, k, a, b, n, h));
//ECPoint G = curve.decodePoint(Hex.decode("02"
//+ "017232BA853A7E731AF129F22FF4149563A419C26BF50A4C9D6EEFAD6126"));
ECPoint G = curve.decodePoint(Hex.decode("04"
+ "017232BA853A7E731AF129F22FF4149563A419C26BF50A4C9D6EEFAD6126"
+ "01DB537DECE819B7F70F555A67C427A8CD9BF18AEB9B56E0C11056FAE6A3"));
return new X9ECParameters(curve, G, n, h, S);
}
示例4: createParameters
protected X9ECParameters createParameters()
{
// p = 2^160 - 2^32 - 2^14 - 2^12 - 2^9 - 2^8 - 2^7 - 2^3 - 2^2 - 1
BigInteger p = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFAC73");
BigInteger a = ECConstants.ZERO;
BigInteger b = BigInteger.valueOf(7);
byte[] S = null;
BigInteger n = fromHex("0100000000000000000001B8FA16DFAB9ACA16B6B3");
BigInteger h = BigInteger.valueOf(1);
ECCurve curve = configureCurve(new ECCurve.Fp(p, a, b));
// ECPoint G = curve.decodePoint(Hex.decode("02"
// + "3B4C382CE37AA192A4019E763036F4F5DD4D7EBB"));
ECPoint G = curve.decodePoint(Hex.decode("04"
+ "3B4C382CE37AA192A4019E763036F4F5DD4D7EBB"
+ "938CF935318FDCED6BC28286531733C3F03C4FEE"));
return new X9ECParameters(curve, G, n, h, S);
}
示例5: solveQuadradicEquation
/**
* Solves a quadratic equation <code>z<sup>2</sup> + z = beta</code>(X9.62
* D.1.6) The other solution is <code>z + 1</code>.
*
* @param beta The value to solve the qradratic equation for.
* @return the solution for <code>z<sup>2</sup> + z = beta</code> or
* <code>null</code> if no solution exists.
*/
private static ECFieldElement solveQuadradicEquation(ECFieldElement beta)
{
ECFieldElement.F2m b = (ECFieldElement.F2m)beta;
ECFieldElement zeroElement = new ECFieldElement.F2m(
b.getM(), b.getK1(), b.getK2(), b.getK3(), ECConstants.ZERO);
if (beta.toBigInteger().equals(ECConstants.ZERO))
{
return zeroElement;
}
ECFieldElement z = null;
ECFieldElement gamma = zeroElement;
Random rand = new Random();
int m = b.getM();
do
{
ECFieldElement t = new ECFieldElement.F2m(b.getM(), b.getK1(),
b.getK2(), b.getK3(), new BigInteger(m, rand));
z = zeroElement;
ECFieldElement w = beta;
for (int i = 1; i <= m - 1; i++)
{
ECFieldElement w2 = w.square();
z = z.square().add(w2.multiply(t));
w = w2.add(beta);
}
if (!w.toBigInteger().equals(ECConstants.ZERO))
{
return null;
}
gamma = z.square().add(z);
}
while (gamma.toBigInteger().equals(ECConstants.ZERO));
return z;
}
示例6: extEuclidGLV
private static BigInteger[] extEuclidGLV(BigInteger n, BigInteger lambda)
{
BigInteger r0 = n, r1 = lambda;
// BigInteger s0 = ECConstants.ONE, s1 = ECConstants.ZERO;
BigInteger t0 = ECConstants.ZERO, t1 = ECConstants.ONE;
for (;;)
{
BigInteger[] qr = r0.divideAndRemainder(r1);
BigInteger q = qr[0], r2 = qr[1];
// BigInteger s2 = s0.subtract(q.multiply(s1));
BigInteger t2 = t0.subtract(q.multiply(t1));
if (isLessThanSqrt(r1, n))
{
return new BigInteger[]{ r0, t0, r1, t1, r2, t2 };
}
r0 = r1;
r1 = r2;
// s0 = s1;
// s1 = s2;
t0 = t1;
t1 = t2;
}
}
示例7: extEuclidBezout
private static BigInteger[] extEuclidBezout(BigInteger[] ab)
{
boolean swap = ab[0].compareTo(ab[1]) < 0;
if (swap)
{
swap(ab);
}
BigInteger r0 = ab[0], r1 = ab[1];
BigInteger s0 = ECConstants.ONE, s1 = ECConstants.ZERO;
BigInteger t0 = ECConstants.ZERO, t1 = ECConstants.ONE;
while (r1.compareTo(ECConstants.ONE) > 0)
{
BigInteger[] qr = r0.divideAndRemainder(r1);
BigInteger q = qr[0], r2 = qr[1];
BigInteger s2 = s0.subtract(q.multiply(s1));
BigInteger t2 = t0.subtract(q.multiply(t1));
r0 = r1;
r1 = r2;
s0 = s1;
s1 = s2;
t0 = t1;
t1 = t2;
}
if (r1.signum() <= 0)
{
throw new IllegalStateException();
}
BigInteger[] st = new BigInteger[]{ s1, t1 };
if (swap)
{
swap(st);
}
return st;
}
示例8: extEuclidBezout
private static BigInteger[] extEuclidBezout(BigInteger[] ab)
{
boolean swap = ab[0].compareTo(ab[1]) < 0;
if (swap)
{
swap(ab);
}
BigInteger r0 = ab[0], r1 = ab[1];
BigInteger s0 = ECConstants.ONE, s1 = ECConstants.ZERO;
BigInteger t0 = ECConstants.ZERO, t1 = ECConstants.ONE;
while (r1.compareTo(ECConstants.ONE) > 0)
{
BigInteger[] qr = r0.divideAndRemainder(r1);
BigInteger q = qr[0], r2 = qr[1];
BigInteger s2 = s0.subtract(q.multiply(s1));
BigInteger t2 = t0.subtract(q.multiply(t1));
r0 = r1;
r1 = r2;
s0 = s1;
s1 = s2;
t0 = t1;
t1 = t2;
}
if (r1.signum() <= 0)
{
/*
* NOTE: This case occurred while testing on curves over tiny fields; probably due to a 0 input.
*/
return null;
}
BigInteger[] st = new BigInteger[]{ s1, t1 };
if (swap)
{
swap(st);
}
return st;
}