8187443: Forest Consolidation: Move files to unified layout

Reviewed-by: darcy, ihse

src/java.base/share/classes/com/sun/crypto/provider/DESKey.java

@@ -0,0 +1,154 @@
+/*
+ * Copyright (c) 1997, 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.
+ */
+
+package com.sun.crypto.provider;
+
+import java.security.MessageDigest;
+import java.security.KeyRep;
+import java.security.InvalidKeyException;
+import javax.crypto.SecretKey;
+import javax.crypto.spec.DESKeySpec;
+
+import jdk.internal.ref.CleanerFactory;
+
+/**
+ * This class represents a DES key.
+ *
+ * @author Jan Luehe
+ *
+ */
+
+final class DESKey implements SecretKey {
+
+    static final long serialVersionUID = 7724971015953279128L;
+
+    private byte[] key;
+
+    /**
+     * Uses the first 8 bytes of the given key as the DES key.
+     *
+     * @param key the buffer with the DES key bytes.
+     *
+     * @exception InvalidKeyException if less than 8 bytes are available for
+     * the key.
+     */
+    DESKey(byte[] key) throws InvalidKeyException {
+        this(key, 0);
+    }
+
+    /**
+     * Uses the first 8 bytes in <code>key</code>, beginning at
+     * <code>offset</code>, as the DES key
+     *
+     * @param key the buffer with the DES key bytes.
+     * @param offset the offset in <code>key</code>, where the DES key bytes
+     * start.
+     *
+     * @exception InvalidKeyException if less than 8 bytes are available for
+     * the key.
+     */
+    DESKey(byte[] key, int offset) throws InvalidKeyException {
+        if (key == null || key.length - offset < DESKeySpec.DES_KEY_LEN) {
+            throw new InvalidKeyException("Wrong key size");
+        }
+        this.key = new byte[DESKeySpec.DES_KEY_LEN];
+        System.arraycopy(key, offset, this.key, 0, DESKeySpec.DES_KEY_LEN);
+        DESKeyGenerator.setParityBit(this.key, 0);
+
+        // Use the cleaner to zero the key when no longer referenced
+        final byte[] k = this.key;
+        CleanerFactory.cleaner().register(this,
+                () -> java.util.Arrays.fill(k, (byte)0x00));
+    }
+
+    public byte[] getEncoded() {
+        // Return a copy of the key, rather than a reference,
+        // so that the key data cannot be modified from outside
+        return this.key.clone();
+    }
+
+    public String getAlgorithm() {
+        return "DES";
+    }
+
+    public String getFormat() {
+        return "RAW";
+    }
+
+    /**
+     * Calculates a hash code value for the object.
+     * Objects that are equal will also have the same hashcode.
+     */
+    public int hashCode() {
+        int retval = 0;
+        for (int i = 1; i < this.key.length; i++) {
+            retval += this.key[i] * i;
+        }
+        return(retval ^= "des".hashCode());
+    }
+
+    public boolean equals(Object obj) {
+        if (this == obj)
+            return true;
+
+        if (!(obj instanceof SecretKey))
+            return false;
+
+        String thatAlg = ((SecretKey)obj).getAlgorithm();
+        if (!(thatAlg.equalsIgnoreCase("DES")))
+            return false;
+
+        byte[] thatKey = ((SecretKey)obj).getEncoded();
+        boolean ret = MessageDigest.isEqual(this.key, thatKey);
+        java.util.Arrays.fill(thatKey, (byte)0x00);
+        return ret;
+    }
+
+    /**
+     * readObject is called to restore the state of this key from
+     * a stream.
+     */
+    private void readObject(java.io.ObjectInputStream s)
+         throws java.io.IOException, ClassNotFoundException
+    {
+        s.defaultReadObject();
+        key = key.clone();
+    }
+
+    /**
+     * Replace the DES key to be serialized.
+     *
+     * @return the standard KeyRep object to be serialized
+     *
+     * @throws java.io.ObjectStreamException if a new object representing
+     * this DES key could not be created
+     */
+    private Object writeReplace() throws java.io.ObjectStreamException {
+        return new KeyRep(KeyRep.Type.SECRET,
+                        getAlgorithm(),
+                        getFormat(),
+                        getEncoded());
+    }
+}