--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.base/share/classes/sun/security/ssl/RandomCookie.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 1996, 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+
+package sun.security.ssl;
+
+import java.io.*;
+import java.security.SecureRandom;
+
+/*
+ * RandomCookie ... SSL hands standard format random cookies (nonces)
+ * around.  These know how to encode/decode themselves on SSL streams,
+ * and can be created and printed.
+ *
+ * @author David Brownell
+ */
+final class RandomCookie {
+
+    byte[] random_bytes;  // exactly 32 bytes
+
+    RandomCookie(SecureRandom generator) {
+        random_bytes = new byte[32];
+        generator.nextBytes(random_bytes);
+    }
+
+    RandomCookie(HandshakeInStream m) throws IOException {
+        random_bytes = new byte[32];
+        m.read(random_bytes, 0, 32);
+    }
+
+    void send(HandshakeOutStream out) throws IOException {
+        out.write(random_bytes, 0, 32);
+    }
+
+    void print(PrintStream s) {
+        s.print("random_bytes = {");
+        for (int i = 0; i < 32; i++) {
+            int k = random_bytes[i] & 0xFF;
+            if (i != 0) {
+                s.print(' ');
+            }
+            s.print(Utilities.hexDigits[k >>> 4]);
+            s.print(Utilities.hexDigits[k & 0xf]);
+        }
+        s.println("}");
+    }
+}