DERNull


1   /*
2    *  SSL-Explorer
3    *
4    *  Copyright (C) 2003-2006 3SP LTD. All Rights Reserved
5    *
6    *  This program is free software; you can redistribute it and/or
7    *  modify it under the terms of the GNU General Public License
8    *  as published by the Free Software Foundation; either version 2 of
9    *  the License, or (at your option) any later version.
10   *  This program is distributed in the hope that it will be useful,
11   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   *  GNU General Public License for more details.
14   *
15   *  You should have received a copy of the GNU General Public
16   *  License along with this program; if not, write to the Free Software
17   *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18   */
19              
20  package com.maverick.crypto.asn1;
21  
22  import java.io.IOException  ;
23  
24  /**
25   * A NULL object.
26   */
27  public class DERNull
28      extends ASN1Null
29  {
30      byte[]  zeroBytes = new byte[0];
31  
32      public DERNull()
33      {
34      }
35  
36      void encode(
37          DEROutputStream  out)
38          throws IOException  
39      {
40          out.writeEncoded(NULL, zeroBytes);
41      }
42  
43      public boolean equals(
44          Object   o)
45      {
46          if ((o == null) || !(o instanceof DERNull))
47          {
48              return false;
49          }
50  
51          return true;
52      }
53  }
54

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