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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 1.8 and up.

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package org.bouncycastle.pqc.jcajce.spec;

import java.security.spec.AlgorithmParameterSpec;
import java.util.HashMap;
import java.util.Map;

import org.bouncycastle.pqc.crypto.ntruprime.NTRULPRimeParameters;
import org.bouncycastle.util.Strings;

public class NTRULPRimeParameterSpec
    implements AlgorithmParameterSpec
{
    public static final NTRULPRimeParameterSpec ntrulpr653 = new NTRULPRimeParameterSpec(NTRULPRimeParameters.ntrulpr653);
    public static final NTRULPRimeParameterSpec ntrulpr761 = new NTRULPRimeParameterSpec(NTRULPRimeParameters.ntrulpr761);
    public static final NTRULPRimeParameterSpec ntrulpr857 = new NTRULPRimeParameterSpec(NTRULPRimeParameters.ntrulpr857);
    public static final NTRULPRimeParameterSpec ntrulpr953 = new NTRULPRimeParameterSpec(NTRULPRimeParameters.ntrulpr953);
    public static final NTRULPRimeParameterSpec ntrulpr1013 = new NTRULPRimeParameterSpec(NTRULPRimeParameters.ntrulpr1013);
    public static final NTRULPRimeParameterSpec ntrulpr1277 = new NTRULPRimeParameterSpec(NTRULPRimeParameters.ntrulpr1277);

    private static Map parameters = new HashMap();

    static
    {
        parameters.put("ntrulpr653", ntrulpr653);
        parameters.put("ntrulpr761", ntrulpr761);
        parameters.put("ntrulpr857", ntrulpr857);
        parameters.put("ntrulpr953", ntrulpr953);
        parameters.put("ntrulpr1013", ntrulpr1013);
        parameters.put("ntrulpr1277", ntrulpr1277);
    }

    private final String name;

    private NTRULPRimeParameterSpec(NTRULPRimeParameters parameters)
    {
        this.name = parameters.getName();
    }

    public String getName()
    {
        return name;
    }
    public static NTRULPRimeParameterSpec fromName(String name)
    {
        return (NTRULPRimeParameterSpec) parameters.get(Strings.toLowerCase(name));
    }
}