--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.base/share/classes/javax/crypto/spec/package-info.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 1999, 2017, 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.
+ */
+
+/**
+ * Provides classes and interfaces for key specifications and
+ * algorithm parameter specifications.
+ *
+ * <p>A key specification is a transparent representation of the key
+ * material that constitutes a key. A key may be specified in an
+ * algorithm-specific way, or in an algorithm-independent encoding
+ * format (such as ASN.1).  This package contains key specifications
+ * for Diffie-Hellman public and private keys, as well as key
+ * specifications for DES, Triple DES, and PBE secret keys.
+ *
+ * <p>An algorithm parameter specification is a transparent
+ * representation of the sets of parameters used with an
+ * algorithm. This package contains algorithm parameter specifications
+ * for parameters used with the Diffie-Hellman, DES, Triple DES, PBE,
+ * RC2 and RC5 algorithms.
+ *
+ *
+ * <ul>
+ * <li>PKCS #3: Diffie-Hellman Key-Agreement Standard, Version 1.4,
+ * November 1993.</li>
+ * <li>PKCS #5: Password-Based Encryption Standard, Version 1.5,
+ * November 1993.</li>
+ * <li>Federal Information Processing Standards Publication (FIPS PUB) 46-2:
+ * Data Encryption Standard (DES) </li>
+ * </ul>
+ *
+ * <h2>Related Documentation</h2>
+ *
+ * For documentation that includes information about algorithm
+ * parameter and key specifications, please see:
+ *
+ * <ul>
+ * <li>
+ *    {@extLink security_guide_jca
+ *      Java Cryptography Architecture (JCA) Reference Guide} </li>
+ * <li>
+ *    {@extLink security_guide_impl_provider
+ *      How to Implement a Provider in the Java Cryptography Architecture}</li>
+ * </ul>
+ *
+ * @since 1.4
+ */
+package javax.crypto.spec;