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;

import java.io.IOException;


A temporary class to use LegacyTlsAuthentication

Deprecated:
/**
 * A temporary class to use LegacyTlsAuthentication
 * 
 * @deprecated
 */
public class LegacyTlsClient extends DefaultTlsClient
{
    
Deprecated:
/** @deprecated */
    protected CertificateVerifyer verifyer;

    
Deprecated:
/**
     * @deprecated
     */
    public LegacyTlsClient(CertificateVerifyer verifyer)
    {
        super();

        this.verifyer = verifyer;
    }

    public TlsAuthentication getAuthentication() throws IOException
    {
        return new LegacyTlsAuthentication(verifyer);
    }
}