TLSProtocol.java

/*
 * Copyright 2014-2017 Amazon Technologies, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *    http://aws.amazon.com/apache2.0
 *
 * This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES
 * OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and
 * limitations under the License.
 */
package com.amazonaws.http.conn.ssl;

/**
 * TLS protocols arranged in descending order of security preference in terms of
 * their ordinal numbers. See <a href=
 * "http://docs.oracle.com/javase/7/docs/technotes/guides/security/StandardNames.html#jssenames"
 * >JSSE Standard Names</a>.
 */
enum TLSProtocol {
    TLSv1_2("TLSv1.2"), // most secure/preferred
    TLSv1_1("TLSv1.1"),
    TLSv1("TLSv1"),
    TLS("TLS"),         // least secure/preferred, but acceptable
    ;
    private final String protocolName;

    private TLSProtocol(String protocolName) {
        this.protocolName = protocolName;
    }

    /**
     * Returns the corresponding TLS protocol name as per the <a href=
     * "http://docs.oracle.com/javase/7/docs/technotes/guides/security/StandardNames.html#jssenames"
     * >JSSE Standard Names</a>
     */
    String getProtocolName() {
        return protocolName;
    }
}