mcs/class/corlib/System.Security.Cryptography/HMACMD5.cs

   1 //
   2 // HMACMD5.cs: HMAC implementation using MD5
   3 //
   4 // Author:
   5 //      Sebastien Pouliot  <sebastien@xamarin.com>
   6 //
   7 // (C) 2003 Motus Technologies Inc. (http://www.motus.com)
   8 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
   9 // Copyright 2013 Xamarin Inc. (http://www.xamarin.com)
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System.Runtime.InteropServices;
  32
  33 using Mono.Security.Cryptography;
  34
  35 namespace System.Security.Cryptography {
  36
  37         // References:
  38         // a.   Internet RFC 2104, HMAC, Keyed-Hashing for Message Authentication
  39         //      (include C source for HMAC-MD5)
  40         //      http://www.ietf.org/rfc/rfc2104.txt
  41         // b.   IETF RFC2202: Test Cases for HMAC-MD5 and HMAC-SHA-1
  42         //      (include C source for HMAC-MD5 and HAMAC-SHA1)
  43         //      http://www.ietf.org/rfc/rfc2202.txt
  44         [ComVisible (true)]
  45         public class HMACMD5 : HMAC {
  46
  47                 public HMACMD5 ()
  48                         : this (KeyBuilder.Key (8))
  49                 {
  50                 }
  51
  52                 public HMACMD5 (byte[] key) : base ()
  53                 {
  54 #if FULL_AOT_RUNTIME
  55                         SetHash ("MD5", new MD5CryptoServiceProvider ());
  56 #else
  57                         HashName = "MD5";
  58 #endif
  59                         HashSizeValue = 128;
  60                         Key = key;
  61                 }
  62         }
  63 }