mcs/class/corlib/System.Security.Cryptography/MD5.cs

   1 //
   2 // System.Security.Cryptography MD5 Class implementation
   3 //
   4 // Authors:
   5 //      Matthew S. Ford (Matthew.S.Ford@Rose-Hulman.Edu)
   6 //      Sebastien Pouliot (sebastien@ximian.com)
   7 //
   8 // Copyright 2001 by Matthew S. Ford.
   9 // Portions (C) 2002 Motus Technologies Inc. (http://www.motus.com)
  10 // (C) 2004 Novell (http://www.novell.com)
  11 //
  12
  13 //
  14 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  15 //
  16 // Permission is hereby granted, free of charge, to any person obtaining
  17 // a copy of this software and associated documentation files (the
  18 // "Software"), to deal in the Software without restriction, including
  19 // without limitation the rights to use, copy, modify, merge, publish,
  20 // distribute, sublicense, and/or sell copies of the Software, and to
  21 // permit persons to whom the Software is furnished to do so, subject to
  22 // the following conditions:
  23 //
  24 // The above copyright notice and this permission notice shall be
  25 // included in all copies or substantial portions of the Software.
  26 //
  27 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  28 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  29 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  30 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  31 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  32 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  33 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  34 //
  35
  36 namespace System.Security.Cryptography {
  37
  38         public abstract class MD5 : HashAlgorithm {
  39
  40                 // Why is it protected when others abstract hash classes are public ?
  41                 protected MD5 ()
  42                 {
  43                         HashSizeValue = 128;
  44                 }
  45
  46                 public static new MD5 Create ()
  47                 {
  48                         return Create ("System.Security.Cryptography.MD5");
  49                 }
  50
  51                 public static new MD5 Create (string hashName)
  52                 {
  53                         return (MD5) CryptoConfig.CreateFromName (hashName);
  54                 }
  55         }
  56 }
  57