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Java ECConstants类代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Java中org.bouncycastle.math.ec.ECConstants的典型用法代码示例。如果您正苦于以下问题:Java ECConstants类的具体用法?Java ECConstants怎么用?Java ECConstants使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。



ECConstants类属于org.bouncycastle.math.ec包,在下文中一共展示了ECConstants类的7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,您的评价将有助于我们的系统推荐出更棒的Java代码示例。

示例1: createParameters

import org.bouncycastle.math.ec.ECConstants; //导入依赖的package包/类
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);
        }
 
开发者ID:Appdome,项目名称:ipack,代码行数:20,代码来源:SECNamedCurves.java


示例2: createParameters

import org.bouncycastle.math.ec.ECConstants; //导入依赖的package包/类
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);
}
 
开发者ID:ttt43ttt,项目名称:gwt-crypto,代码行数:21,代码来源:SECNamedCurves.java


示例3: discoverEndomorphisms

import org.bouncycastle.math.ec.ECConstants; //导入依赖的package包/类
public static void discoverEndomorphisms(X9ECParameters x9)
{
    if (x9 == null)
    {
        throw new NullPointerException("x9");
    }

    ECCurve c = x9.getCurve();
    if (ECAlgorithms.isFpCurve(c))
    {
        BigInteger characteristic = c.getField().getCharacteristic();

        if (c.getA().isZero() && characteristic.mod(ECConstants.THREE).equals(ECConstants.ONE))
        {
            System.out.println("Curve has a 'GLV Type B' endomorphism with these parameters:");
            printGLVTypeBParameters(x9);
        }
    }
}
 
开发者ID:thedrummeraki,项目名称:Aki-SSL,代码行数:20,代码来源:DiscoverEndomorphisms.java


示例4: findBetaValues

import org.bouncycastle.math.ec.ECConstants; //导入依赖的package包/类
private static ECFieldElement[] findBetaValues(ECCurve c)
{
    BigInteger q = c.getField().getCharacteristic();
    BigInteger e = q.divide(ECConstants.THREE);

    // Search for a random value that generates a non-trival cube root of 1
    SecureRandom random = new SecureRandom();
    BigInteger b;
    do
    {
        BigInteger r = BigIntegers.createRandomInRange(ECConstants.TWO, q.subtract(ECConstants.TWO), random);
        b = r.modPow(e, q);
    }
    while (b.equals(ECConstants.ONE));

    ECFieldElement beta = c.fromBigInteger(b);

    return new ECFieldElement[]{ beta, beta.square() }; 
}
 
开发者ID:thedrummeraki,项目名称:Aki-SSL,代码行数:20,代码来源:DiscoverEndomorphisms.java


示例5: discoverEndomorphism

import org.bouncycastle.math.ec.ECConstants; //导入依赖的package包/类
private static void discoverEndomorphism(String curveName)
{
    X9ECParameters x9 = ECNamedCurveTable.getByName(curveName);
    if (x9 == null)
    {
        System.err.println("Unknown curve: " + curveName);
        return;
    }

    ECCurve c = x9.getCurve();
    if (ECAlgorithms.isFpCurve(c))
    {
        BigInteger characteristic = c.getField().getCharacteristic();

        if (c.getA().isZero() && characteristic.mod(ECConstants.THREE).equals(ECConstants.ONE))
        {
            System.out.println("Curve '" + curveName + "' has a 'GLV Type B' endomorphism with these parameters: ");
            printGLVTypeBParameters(x9);
        }
    }
}
 
开发者ID:redfish64,项目名称:TinyTravelTracker,代码行数:22,代码来源:DiscoverEndomorphisms.java


示例6: createParameters

import org.bouncycastle.math.ec.ECConstants; //导入依赖的package包/类
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);
}
 
开发者ID:redfish64,项目名称:TinyTravelTracker,代码行数:21,代码来源:SECNamedCurves.java


示例7: createParameters

import org.bouncycastle.math.ec.ECConstants; //导入依赖的package包/类
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);
        }
 
开发者ID:NoYouShutup,项目名称:CryptMeme,代码行数:20,代码来源:SECNamedCurves.java



注:本文中的org.bouncycastle.math.ec.ECConstants类示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。


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