[docs] Import of Microsoft BCL Documentation.

[mono.git] / mcs / class / corlib / System.Security.Cryptography / RC2.cs

diff --git a/mcs/class/corlib/System.Security.Cryptography/RC2.cs b/mcs/class/corlib/System.Security.Cryptography/RC2.cs
index 95dfe4db53d4ef06f17f476bc442ca4f499ac3ed..5b6fc547f75dd39f1055dacfd7637abe3a234490 100644 (file)
--- a/mcs/class/corlib/System.Security.Cryptography/RC2.cs
+++ b/mcs/class/corlib/System.Security.Cryptography/RC2.cs
@@ -3,23 +3,53 @@
 //
 // Authors: 
 //     Andrew Birkett (andy@nobugs.org)
-//     Sebastien Pouliot (spouliot@motus.com)
-//          
+//     Sebastien Pouliot (sebastien@ximian.com)
+//
+// Copyright (C) 2004-2006 Novell, Inc (http://www.novell.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
 
-using System;
+using System.Runtime.InteropServices;
 
 namespace System.Security.Cryptography {
 
+       // References:
+       // a.   IETF RFC2286: A Description of the RC2(r) Encryption Algorithm
+       //      http://www.ietf.org/rfc/rfc2268.txt
+
+       [ComVisible (true)]
        public abstract class RC2 : SymmetricAlgorithm {
 
                public static new RC2 Create () 
                {
+#if FULL_AOT_RUNTIME
+                       return new System.Security.Cryptography.RC2CryptoServiceProvider ();
+#else
                        return Create ("System.Security.Cryptography.RC2");
+#endif
                }
                
-               public static new RC2 Create (string algName) 
+               public static new RC2 Create (string AlgName) 
                {
-                       return (RC2) CryptoConfig.CreateFromName (algName);
+                       return (RC2) CryptoConfig.CreateFromName (AlgName);
                }
 
                protected int EffectiveKeySizeValue;
@@ -31,32 +61,33 @@ namespace System.Security.Cryptography {
                                else
                                        return EffectiveKeySizeValue;
                        }
-                       set { 
-                               if (!KeySizes.IsLegalKeySize (LegalKeySizesValue, value))
-                                       throw new CryptographicException ("key size not supported by algorithm");
+                       set {
                                EffectiveKeySizeValue = value; 
                        }
                }
 
-               // Overridden, which makes me suspect it changes effective keysize too?
                public override int KeySize {
-                       get { return KeySizeValue; }
-                       set { KeySizeValue = value; }
+                       get { return base.KeySize; }
+                       set {
+                               base.KeySize = value;
+                               EffectiveKeySizeValue = value;
+                       }
                }
-                               
-               public RC2 () 
+
+               protected RC2 ()
                {
                        KeySizeValue = 128;
                        BlockSizeValue = 64;
-                       FeedbackSizeValue = 64;
+                       FeedbackSizeValue = 8;
 
                        // The RFC allows keys of 1 to 128 bytes, but MS impl only supports
                        // 40 to 128 bits, sigh.
-                       LegalKeySizesValue = new KeySizes[1];
-                       LegalKeySizesValue[0] = new KeySizes(40, 128, 8);
+                       LegalKeySizesValue = new KeySizes [1];
+                       LegalKeySizesValue [0] = new KeySizes (40, 128, 8);
 
-                       LegalBlockSizesValue = new KeySizes[1];
-                       LegalBlockSizesValue[0] = new KeySizes(64, 64, 0);
+                       LegalBlockSizesValue = new KeySizes [1];
+                       LegalBlockSizesValue [0] = new KeySizes (64, 64, 0);
                }
        }
 }
+