http://www.bouncycastle.org/java.html: 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 1.5. 
package org.bouncycastle.jce.interfaces;

import org.bouncycastle.jce.spec.GOST3410PublicKeyParameterSetSpec;

public interface GOST3410Params
{

    public String getPublicKeyParamSetOID();

    public String getDigestParamSetOID();

    public String getEncryptionParamSetOID();
    
    public GOST3410PublicKeyParameterSetSpec getPublicKeyParameters();
}