org.bouncycastle.math.ec.endo.ScalarSplitParameters Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of bcprov-debug-jdk14 Show documentation

The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.4.

There is a newer version: 1.79

Show newest version

package org.bouncycastle.math.ec.endo;

import java.math.BigInteger;

public class ScalarSplitParameters
{
    private static void checkVector(BigInteger[] v, String name)
    {
        if (v == null || v.length != 2 || v[0] == null || v[1] == null)
        {
            throw new IllegalArgumentException("'" + name + "' must consist of exactly 2 (non-null) values");
        }
    }

    protected final BigInteger v1A, v1B, v2A, v2B;
    protected final BigInteger g1, g2;
    protected final int bits;

    public ScalarSplitParameters(BigInteger[] v1, BigInteger[] v2, BigInteger g1,
        BigInteger g2, int bits)
    {
        checkVector(v1, "v1");
        checkVector(v2, "v2");

        this.v1A = v1[0];
        this.v1B = v1[1];
        this.v2A = v2[0];
        this.v2B = v2[1];
        this.g1 = g1;
        this.g2 = g2;
        this.bits = bits;
    }

    public BigInteger getV1A()
    {
        return v1A;
    }

    public BigInteger getV1B()
    {
        return v1B;
    }

    public BigInteger getV2A()
    {
        return v2A;
    }

    public BigInteger getV2B()
    {
        return v2B;
    }

    public BigInteger getG1()
    {
        return g1;
    }

    public BigInteger getG2()
    {
        return g2;
    }
    
    public int getBits()
    {
        return bits;
    }
}