io.neow3j.constants.NeoConstants Maven / Gradle / Ivy

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package io.neow3j.constants;

import org.bouncycastle.asn1.x9.X9ECParameters;
import org.bouncycastle.crypto.ec.CustomNamedCurves;
import org.bouncycastle.crypto.params.ECDomainParameters;

import java.math.BigInteger;

public class NeoConstants {

    public static final X9ECParameters CURVE_PARAMS = CustomNamedCurves.getByName("secp256r1");
    public static final ECDomainParameters CURVE = new ECDomainParameters(
            CURVE_PARAMS.getCurve(), CURVE_PARAMS.getG(), CURVE_PARAMS.getN(), CURVE_PARAMS.getH());
    public static final BigInteger HALF_CURVE_ORDER = CURVE_PARAMS.getN().shiftRight(1);

    public static final byte COIN_VERSION = 0x17;

}