2 // SecRandom.cs: based on Mono's System.Security.Cryptography.RNGCryptoServiceProvider
5 // Mark Crichton (crichton@gimp.org)
6 // Sebastien Pouliot (sebastien@xamarun.com)
9 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
10 // Copyright (C) 2012-2014 Xamarin Inc.
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13 // a copy of this software and associated documentation files (the
14 // "Software"), to deal in the Software without restriction, including
15 // without limitation the rights to use, copy, modify, merge, publish,
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17 // permit persons to whom the Software is furnished to do so, subject to
18 // the following conditions:
20 // The above copyright notice and this permission notice shall be
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32 using Crimson.CommonCrypto;
34 // http://developer.apple.com/library/ios/#DOCUMENTATION/Security/Reference/RandomizationReference/Reference/reference.html
35 #if MONOTOUCH || XAMMAC
36 namespace System.Security.Cryptography {
37 public class RNGCryptoServiceProvider : RandomNumberGenerator {
38 public RNGCryptoServiceProvider ()
42 ~RNGCryptoServiceProvider ()
47 using System.Security.Cryptography;
49 namespace Crimson.Security.Cryptography {
51 public class SecRandom : RandomNumberGenerator {
54 public override void GetBytes (byte[] data)
57 throw new ArgumentNullException ("data");
59 Cryptor.GetRandom (data);
62 public override void GetNonZeroBytes (byte[] data)
65 throw new ArgumentNullException ("data");
67 byte[] random = new byte [data.Length * 2];
69 // one pass should be enough but hey this is random ;-)
70 while (i < data.Length) {
71 Cryptor.GetRandom (random);
72 for (int j=0; j < random.Length; j++) {
76 data [i++] = random [j];