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diff --git a/libjava/classpath/java/security/SecureRandomSpi.java b/libjava/classpath/java/security/SecureRandomSpi.java
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+/* SecureRandomSpi.java --- Secure Random Service Provider Interface
+   Copyright (C) 1999, 2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package java.security;
+import java.io.Serializable;
+
+/**
+   SecureRandomSpi is the Service Provider Interface for SecureRandom
+   providers. It provides an interface for providers to the 
+   SecureRandom engine to write their own pseudo-random number
+   generator.
+
+   @since JDK 1.2       
+
+   @author Mark Benvenuto (ivymccough@worldnet.att.net)
+ */
+public abstract class SecureRandomSpi implements Serializable
+{
+  private static final long serialVersionUID = -2991854161009191830L;
+
+  /**
+     Default Constructor for SecureRandomSpi
+   */
+  public SecureRandomSpi()
+  {
+  }
+
+  /**
+     Updates the seed for SecureRandomSpi but does not reset seed. 
+     It does to this so repeated called never decrease randomness.
+   */
+  protected abstract void engineSetSeed(byte[] seed);
+
+  /**
+     Gets a user specified number of bytes depending on the length
+     of the array?
+
+     @param bytes array to fill with random bytes
+   */
+  protected abstract void engineNextBytes(byte[] bytes);
+
+  /**
+     Gets a user specified number of bytes specified by the 
+     parameter.
+
+     @param numBytes number of random bytes to generate
+
+     @return an array full of random bytes
+   */
+  protected abstract byte[] engineGenerateSeed(int numBytes);
+}