--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/com/sun/crypto/provider/CICO/TestUtilities.java	Wed Sep 23 21:28:14 2015 +0000
@@ -0,0 +1,90 @@
+/*
+ * 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.
+ */
+
+/*
+ * utility class
+ */
+
+public class TestUtilities {
+    public static boolean equalsBlock(byte[] b1, byte[] b2, int len) {
+        for (int i = 0; i < len; i++) {
+            if (b1[i] != b2[i]) {
+                System.err.println("b1[" + i + "] : " + b1[i]
+                        + " b2[" + i + "] : " + b2[i]);
+                return false;
+            }
+        }
+        return true;
+    }
+
+    public static boolean equals(byte[] b1, byte[] b2) {
+        if (b2.length != b1.length) {
+            System.err.println("b1.length = " + b1.length
+                    + " b2.length = " + b2.length );
+            return false;
+        }
+        return equalsBlock(b1, b2, b1.length);
+    }
+
+    /**
+     * Verify b1's partial part is same as b2. compares b1 and b2 by chopping up
+     * b1 into blocks of b1BKSize and b2 into blocks of b2BKSize, and then
+     * compare the first b2BKSize bytes of each block, return true if they equal
+     * , otherwise return false.
+     * @param b1 byte array to be compared.
+     * @param b2 saved byte array.
+     * @param b1BKSize b1's block size.
+     * @param b2BKSize b2's block size.
+     * @return true is same. false otherwise.
+     */
+    public static boolean equalsBlockPartial(byte[] b1, byte[] b2, int b1BKSize,
+            int b2BKSize) {
+        int numOfBlock = b1.length / b1BKSize;
+        for (int b = 0; b < numOfBlock; b++) {
+            for (int i = 0; i < b2BKSize; i++) {
+                int j1 = b * b1BKSize + i;
+                int j2 = b * b2BKSize + i;
+                if (b1[j1] != b2[j2]) {
+                    System.err.println("Compare failed at b1[" + j1 + "]:" +
+                            b1[j1] + " b2[" + j2 + "]:" + b2[j2]);
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Generate a byte block by given length. The content of byte block
+     * is determined by the index.
+     * @param length length of byte array
+     * @return a byte array
+     */
+    public static byte[] generateBytes(int length) {
+        byte[] bytes = new byte[length];
+        for (int i = 0; i < length; i++) {
+            bytes[i] = (byte) (i & 0xff);
+        }
+        return bytes;
+    }
+}