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      1 /*
      2  * Copyright (c) 1997, 1999, Oracle and/or its affiliates. All rights reserved.
      3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
      4  *
      5  * This code is free software; you can redistribute it and/or modify it
      6  * under the terms of the GNU General Public License version 2 only, as
      7  * published by the Free Software Foundation.  Oracle designates this
      8  * particular file as subject to the "Classpath" exception as provided
      9  * by Oracle in the LICENSE file that accompanied this code.
     10  *
     11  * This code is distributed in the hope that it will be useful, but WITHOUT
     12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
     13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
     14  * version 2 for more details (a copy is included in the LICENSE file that
     15  * accompanied this code).
     16  *
     17  * You should have received a copy of the GNU General Public License version
     18  * 2 along with this work; if not, write to the Free Software Foundation,
     19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
     20  *
     21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
     22  * or visit www.oracle.com if you need additional information or have any
     23  * questions.
     24  */
     25 
     26 package sun.security.util;
     27 
     28 import java.io.IOException;
     29 import java.io.OutputStream;
     30 
     31 /**
     32  * Interface to an object that knows how to write its own DER
     33  * encoding to an output stream.
     34  *
     35  * @author D. N. Hoover
     36  */
     37 public interface DerEncoder {
     38 
     39     /**
     40      * DER encode this object and write the results to a stream.
     41      *
     42      * @param out  the stream on which the DER encoding is written.
     43      */
     44     public void derEncode(OutputStream out)
     45         throws IOException;
     46 
     47 }
     48