jdk/test/com/sun/crypto/provider/CICO/PBEFunc/PBKDF2Wrapper.java
changeset 32766 2322e6c2a032
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/com/sun/crypto/provider/CICO/PBEFunc/PBKDF2Wrapper.java	Wed Sep 23 21:28:14 2015 +0000
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2007, 2015, 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.
+ *
+ * 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.
+ */
+
+import java.security.GeneralSecurityException;
+import java.security.Provider;
+import java.security.Security;
+import javax.crypto.Cipher;
+import javax.crypto.SecretKey;
+import javax.crypto.SecretKeyFactory;
+import javax.crypto.spec.IvParameterSpec;
+import javax.crypto.spec.PBEKeySpec;
+import javax.crypto.spec.SecretKeySpec;
+
+/**
+ * Wrapper class to test a given SecretKeyFactory.PBKDF2 algorithm.
+ */
+public class PBKDF2Wrapper extends AbstractPBEWrapper {
+    /**
+     * Default salt size.
+     */
+    public static final int PBKDF2_SALT_SIZE = 64;
+
+    /**
+     * Default key length.
+     */
+    public static final int PKDF2_DEFAULT_KEY_LEN = 128;
+
+    /**
+     * Default transformation.
+     */
+    public static final String CIPHER_TRANSFORMATION = "AES/CBC/PKCS5Padding";
+
+    /**
+     * Algorithm name.
+     */
+    public static final String KEY_ALGORITHM = "AES";
+
+    /**
+     * Initialization vector length.
+     */
+    private static final int IV_LENGTH = 16;
+
+    /**
+     * The buffer with the IV.
+     */
+    private final byte[] iv;
+
+    /**
+     * PBKDF2Wrapper constructor. Instantiate Cipher using
+     * "AES/CBC/PKCS5Padding" transformation. Generate a secret key using PKDF2
+     * algorithms given in the "algo" parameter.
+     *
+     * @param algo AES-based PBE algorithm.
+     * @param passwd password phrase.
+     * @throws GeneralSecurityException all security exceptions are thrown.
+     */
+    public PBKDF2Wrapper(PBEAlgorithm algo, String passwd)
+            throws GeneralSecurityException {
+        super(algo, passwd, PBKDF2_SALT_SIZE);
+        iv = TestUtilities.generateBytes(IV_LENGTH);
+    }
+
+    /**
+     * Initiate the Cipher object for PBKDF2 algorithm using given "mode".
+     *
+     * @param mode Cipher mode: encrypt or decrypt
+     * @return Cipher object for PBKDF2 algorithm
+     * @throws GeneralSecurityException all security exceptions are thrown.
+     */
+    @Override
+    protected Cipher initCipher(int mode) throws GeneralSecurityException {
+        Provider provider = Security.getProvider("SunJCE");
+        if (provider == null) {
+            throw new RuntimeException("SunJCE provider does not exist.");
+        }
+        // Generate secret key
+        PBEKeySpec pbeKeySpec = new PBEKeySpec(password.toCharArray(),
+                salt, DEFAULT_ITERATION, PKDF2_DEFAULT_KEY_LEN);
+        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(baseAlgo);
+        SecretKey key = keyFactory.generateSecret(pbeKeySpec);
+
+        // get Cipher instance
+        Cipher cipher = Cipher.getInstance(CIPHER_TRANSFORMATION, provider);
+        cipher.init(mode,
+                new SecretKeySpec(key.getEncoded(),KEY_ALGORITHM),
+                new IvParameterSpec(iv));
+        return cipher;
+    }
+}