package civitas.crypto.parameters;
   
   import java.util.HashMap;
   import java.util.List;
   import java.util.Map;
   
   import civitas.common.VoteChoice;
   import civitas.util.CivitasBigInteger;
   import civitas.util.CivitasBigIntegerFactory;
  
  public class SetUpDecodeMap {
  
  	public Map<CivitasBigInteger, VoteChoice> apply(final List<VoteChoice> choices, final ElGamalParameters params) {
  		Map<CivitasBigInteger, VoteChoice> map = new HashMap<>();
  		choices.forEach(
  				x -> map.put(CivitasBigIntegerFactory.obtain(x.ordinal()).modMultiply(params.g, params.p), x));
  		return map;
  	}
  }