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.asn1.sec;

import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.x9.X9ObjectIdentifiers;

public interface SECObjectIdentifiers
{
    
 ellipticCurve OBJECT IDENTIFIER ::= {
       iso(1) identified-organization(3) certicom(132) curve(0)
 }

/**
     *  ellipticCurve OBJECT IDENTIFIER ::= {
     *        iso(1) identified-organization(3) certicom(132) curve(0)
     *  }
     */
    static final ASN1ObjectIdentifier ellipticCurve = new ASN1ObjectIdentifier("1.3.132.0");

    static final ASN1ObjectIdentifier sect163k1 = ellipticCurve.branch("1");
    static final ASN1ObjectIdentifier sect163r1 = ellipticCurve.branch("2");
    static final ASN1ObjectIdentifier sect239k1 = ellipticCurve.branch("3");
    static final ASN1ObjectIdentifier sect113r1 = ellipticCurve.branch("4");
    static final ASN1ObjectIdentifier sect113r2 = ellipticCurve.branch("5");
    static final ASN1ObjectIdentifier secp112r1 = ellipticCurve.branch("6");
    static final ASN1ObjectIdentifier secp112r2 = ellipticCurve.branch("7");
    static final ASN1ObjectIdentifier secp160r1 = ellipticCurve.branch("8");
    static final ASN1ObjectIdentifier secp160k1 = ellipticCurve.branch("9");
    static final ASN1ObjectIdentifier secp256k1 = ellipticCurve.branch("10");
    static final ASN1ObjectIdentifier sect163r2 = ellipticCurve.branch("15");
    static final ASN1ObjectIdentifier sect283k1 = ellipticCurve.branch("16");
    static final ASN1ObjectIdentifier sect283r1 = ellipticCurve.branch("17");
    static final ASN1ObjectIdentifier sect131r1 = ellipticCurve.branch("22");
    static final ASN1ObjectIdentifier sect131r2 = ellipticCurve.branch("23");
    static final ASN1ObjectIdentifier sect193r1 = ellipticCurve.branch("24");
    static final ASN1ObjectIdentifier sect193r2 = ellipticCurve.branch("25");
    static final ASN1ObjectIdentifier sect233k1 = ellipticCurve.branch("26");
    static final ASN1ObjectIdentifier sect233r1 = ellipticCurve.branch("27");
    static final ASN1ObjectIdentifier secp128r1 = ellipticCurve.branch("28");
    static final ASN1ObjectIdentifier secp128r2 = ellipticCurve.branch("29");
    static final ASN1ObjectIdentifier secp160r2 = ellipticCurve.branch("30");
    static final ASN1ObjectIdentifier secp192k1 = ellipticCurve.branch("31");
    static final ASN1ObjectIdentifier secp224k1 = ellipticCurve.branch("32");
    static final ASN1ObjectIdentifier secp224r1 = ellipticCurve.branch("33");
    static final ASN1ObjectIdentifier secp384r1 = ellipticCurve.branch("34");
    static final ASN1ObjectIdentifier secp521r1 = ellipticCurve.branch("35");
    static final ASN1ObjectIdentifier sect409k1 = ellipticCurve.branch("36");
    static final ASN1ObjectIdentifier sect409r1 = ellipticCurve.branch("37");
    static final ASN1ObjectIdentifier sect571k1 = ellipticCurve.branch("38");
    static final ASN1ObjectIdentifier sect571r1 = ellipticCurve.branch("39");

    static final ASN1ObjectIdentifier secp192r1 = X9ObjectIdentifiers.prime192v1;
    static final ASN1ObjectIdentifier secp256r1 = X9ObjectIdentifiers.prime256v1;

}