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.crypto.tls;

public class KeyExchangeAlgorithm
{
    /*
     * Note that the values here are implementation-specific and arbitrary.
     * It is recommended not to depend on the particular values (e.g. serialization).
     */
    public static final int NULL = 0;
    public static final int RSA = 1;
    public static final int RSA_EXPORT = 2;
    public static final int DHE_DSS = 3;
    public static final int DHE_DSS_EXPORT = 4;
    public static final int DHE_RSA = 5;
    public static final int DHE_RSA_EXPORT = 6;
    public static final int DH_DSS = 7;
    public static final int DH_DSS_EXPORT = 8;
    public static final int DH_RSA = 9;
    public static final int DH_RSA_EXPORT = 10;
    public static final int DH_anon = 11;
    public static final int DH_anon_EXPORT = 12;
    public static final int PSK = 13;
    public static final int DHE_PSK = 14;
    public static final int RSA_PSK = 15;
    public static final int ECDH_ECDSA = 16;
    public static final int ECDHE_ECDSA = 17;
    public static final int ECDH_RSA = 18;
    public static final int ECDHE_RSA = 19;
    public static final int ECDH_anon = 20;
    public static final int SRP = 21;
    public static final int SRP_DSS = 22;
    public static final int SRP_RSA = 23;
}