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The Long Term Stable (LTS) Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains the JCA/JCE provider and low-level API for the BC LTS version 2.73.7 for Java 8 and later.

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package org.bouncycastle.crypto.params;

import org.bouncycastle.asn1.ASN1ObjectIdentifier;

public class ECGOST3410Parameters
    extends ECNamedDomainParameters
{
    private final ASN1ObjectIdentifier  publicKeyParamSet;
    private final ASN1ObjectIdentifier  digestParamSet;
    private final ASN1ObjectIdentifier  encryptionParamSet;

    public ECGOST3410Parameters(ECDomainParameters ecParameters, ASN1ObjectIdentifier publicKeyParamSet, ASN1ObjectIdentifier digestParamSet)
    {
        this(ecParameters, publicKeyParamSet, digestParamSet, null);
    }

    public ECGOST3410Parameters(ECDomainParameters ecParameters, ASN1ObjectIdentifier publicKeyParamSet, ASN1ObjectIdentifier digestParamSet, ASN1ObjectIdentifier encryptionParamSet)
    {
        super(publicKeyParamSet, ecParameters);

        if (ecParameters instanceof ECNamedDomainParameters)
        {
            if (!publicKeyParamSet.equals(((ECNamedDomainParameters)ecParameters).getName()))
            {
                throw new IllegalArgumentException("named parameters do not match publicKeyParamSet value");
            }
        }
        this.publicKeyParamSet = publicKeyParamSet;
        this.digestParamSet = digestParamSet;
        this.encryptionParamSet = encryptionParamSet;
    }

    public ASN1ObjectIdentifier getPublicKeyParamSet()
    {
        return publicKeyParamSet;
    }

    public ASN1ObjectIdentifier getDigestParamSet()
    {
        return digestParamSet;
    }

    public ASN1ObjectIdentifier getEncryptionParamSet()
    {
        return encryptionParamSet;
    }
}