--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/org/eclipse/jetty/server/ssl/ServletSSL.java	Wed Sep 07 21:15:48 2016 -0600
@@ -0,0 +1,88 @@
+//
+//  ========================================================================
+//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
+//  ------------------------------------------------------------------------
+//  All rights reserved. This program and the accompanying materials
+//  are made available under the terms of the Eclipse Public License v1.0
+//  and Apache License v2.0 which accompanies this distribution.
+//
+//      The Eclipse Public License is available at
+//      http://www.eclipse.org/legal/epl-v10.html
+//
+//      The Apache License v2.0 is available at
+//      http://www.opensource.org/licenses/apache2.0.php
+//
+//  You may elect to redistribute this code under either of these licenses.
+//  ========================================================================
+//
+
+package org.eclipse.jetty.server.ssl;
+
+/* --------------------------------------------------------------------- */
+/**
+ * Jetty Servlet SSL support utilities.
+ * <p>
+ * A collection of utilities required to support the SSL requirements of the Servlet 2.2 and 2.3
+ * specs.
+ * 
+ * <p>
+ * Used by the SSL listener classes.
+ * 
+ * 
+ */
+public class ServletSSL
+{
+    /* ------------------------------------------------------------ */
+    /**
+     * Given the name of a TLS/SSL cipher suite, return an int representing it effective stream
+     * cipher key strength. i.e. How much entropy material is in the key material being fed into the
+     * encryption routines.
+     * 
+     * <p>
+     * This is based on the information on effective key lengths in RFC 2246 - The TLS Protocol
+     * Version 1.0, Appendix C. CipherSuite definitions:
+     * 
+     * <pre>
+     *                         Effective 
+     *     Cipher       Type    Key Bits 
+     * 		       	       
+     *     NULL       * Stream     0     
+     *     IDEA_CBC     Block    128     
+     *     RC2_CBC_40 * Block     40     
+     *     RC4_40     * Stream    40     
+     *     RC4_128      Stream   128     
+     *     DES40_CBC  * Block     40     
+     *     DES_CBC      Block     56     
+     *     3DES_EDE_CBC Block    168     
+     * </pre>
+     * 
+     * @param cipherSuite String name of the TLS cipher suite.
+     * @return int indicating the effective key entropy bit-length.
+     */
+    public static int deduceKeyLength(String cipherSuite)
+    {
+        // Roughly ordered from most common to least common.
+        if (cipherSuite == null)
+            return 0;
+        else if (cipherSuite.indexOf("WITH_AES_256_") >= 0)
+            return 256;
+        else if (cipherSuite.indexOf("WITH_RC4_128_") >= 0)
+            return 128;
+        else if (cipherSuite.indexOf("WITH_AES_128_") >= 0)
+            return 128;
+        else if (cipherSuite.indexOf("WITH_RC4_40_") >= 0)
+            return 40;
+        else if (cipherSuite.indexOf("WITH_3DES_EDE_CBC_") >= 0)
+            return 168;
+        else if (cipherSuite.indexOf("WITH_IDEA_CBC_") >= 0)
+            return 128;
+        else if (cipherSuite.indexOf("WITH_RC2_CBC_40_") >= 0)
+            return 40;
+        else if (cipherSuite.indexOf("WITH_DES40_CBC_") >= 0)
+            return 40;
+        else if (cipherSuite.indexOf("WITH_DES_CBC_") >= 0)
+            return 56;
+        else
+            return 0;
+    }
+}