2 // System.Security.Cryptography.RandomNumberGenerator
5 // Duco Fijma (duco@lorentz.xs4all.nl)
8 // Copyright (C) 2004-2006 Novell, Inc (http://www.novell.com)
10 // Permission is hereby granted, free of charge, to any person obtaining
11 // a copy of this software and associated documentation files (the
12 // "Software"), to deal in the Software without restriction, including
13 // without limitation the rights to use, copy, modify, merge, publish,
14 // distribute, sublicense, and/or sell copies of the Software, and to
15 // permit persons to whom the Software is furnished to do so, subject to
16 // the following conditions:
18 // The above copyright notice and this permission notice shall be
19 // included in all copies or substantial portions of the Software.
21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
30 using System.Runtime.InteropServices;
32 namespace System.Security.Cryptography {
37 public abstract class RandomNumberGenerator
43 protected RandomNumberGenerator ()
47 public static RandomNumberGenerator Create ()
50 return new System.Security.Cryptography.RNGCryptoServiceProvider ();
52 // create the default random number generator
53 return Create ("System.Security.Cryptography.RandomNumberGenerator");
57 public static RandomNumberGenerator Create (string rngName)
59 return (RandomNumberGenerator) (CryptoConfig.CreateFromName (rngName));
62 public abstract void GetBytes (byte[] data);
65 public virtual void GetNonZeroBytes (byte[] data)
67 throw new NotImplementedException ();
70 public abstract void GetNonZeroBytes (byte[] data);
74 #if NET_4_0 || MOONLIGHT
75 public void Dispose ()
80 protected virtual void Dispose (bool disposing)