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 to JDK 1.8.
  • The Legion of the Bouncy Castle Inc. 
package org.bouncycastle.crypto.tls;


RFC 5246 7.4.1.4.1 (in RFC 2246, there were no specific values assigned)

/**
 * RFC 5246 7.4.1.4.1 (in RFC 2246, there were no specific values assigned)
 */
public class SignatureAlgorithm
{
    public static final short anonymous = 0;
    public static final short rsa = 1;
    public static final short dsa = 2;
    public static final short ecdsa = 3;
}