mcs/class/corlib/System.Security.Cryptography/Rijndael.cs

   1 //
   2 // System.Security.Cryptography.Rijndael.cs
   3 //
   4 // Authors: Dan Lewis (dihlewis@yahoo.co.uk)
   5 //          Andrew Birkett (andy@nobugs.org)
   6 //
   7 // (C) 2002
   8 // (C) 2004 Novell (http://www.novell.com)
   9 //
  10
  11 //
  12 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  13 //
  14 // Permission is hereby granted, free of charge, to any person obtaining
  15 // a copy of this software and associated documentation files (the
  16 // "Software"), to deal in the Software without restriction, including
  17 // without limitation the rights to use, copy, modify, merge, publish,
  18 // distribute, sublicense, and/or sell copies of the Software, and to
  19 // permit persons to whom the Software is furnished to do so, subject to
  20 // the following conditions:
  21 //
  22 // The above copyright notice and this permission notice shall be
  23 // included in all copies or substantial portions of the Software.
  24 //
  25 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  29 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  30 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  31 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  32 //
  33
  34 using System;
  35
  36 namespace System.Security.Cryptography {
  37
  38         // References:
  39         // a.   FIPS PUB 197: Advanced Encryption Standard
  40         //      http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf
  41
  42         public abstract class Rijndael : SymmetricAlgorithm {
  43
  44                 public static new Rijndael Create ()
  45                 {
  46                         return Create ("System.Security.Cryptography.Rijndael");
  47                 }
  48
  49                 public static new Rijndael Create (string algName)
  50                 {
  51                         return (Rijndael) CryptoConfig.CreateFromName (algName);
  52                 }
  53
  54                 public Rijndael ()
  55                 {
  56                         KeySizeValue = 256;
  57                         BlockSizeValue = 128;
  58                         FeedbackSizeValue = 128;
  59
  60                         LegalKeySizesValue = new KeySizes [1];
  61                         LegalKeySizesValue [0] = new KeySizes (128, 256, 64);
  62
  63                         LegalBlockSizesValue = new KeySizes [1];
  64                         LegalBlockSizesValue [0] = new KeySizes (128, 256, 64);
  65                 }
  66         }
  67 }