**** Merged from MCS ****
[mono-project.git] / mcs / class / corlib / System.Security.Cryptography / RSAPKCS1KeyExchangeDeformatter.cs
blobde08fc94444c6e2b24a5d1ea80973e9e761f3850
1 //
2 // RSAPKCS1KeyExchangeDeformatter.cs - Handles PKCS#1 v.1.5 keyex decryption.
3 //
4 // Author:
5 // Sebastien Pouliot <sebastien@ximian.com>
6 //
7 // (C) 2002 Motus Technologies Inc. (http://www.motus.com)
8 // (C) 2004 Novell (http://www.novell.com)
9 //
12 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
14 // Permission is hereby granted, free of charge, to any person obtaining
15 // a copy of this software and associated documentation files (the
16 // "Software"), to deal in the Software without restriction, including
17 // without limitation the rights to use, copy, modify, merge, publish,
18 // distribute, sublicense, and/or sell copies of the Software, and to
19 // permit persons to whom the Software is furnished to do so, subject to
20 // the following conditions:
21 //
22 // The above copyright notice and this permission notice shall be
23 // included in all copies or substantial portions of the Software.
24 //
25 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
29 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
30 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
31 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
34 using System;
35 using System.Globalization;
36 using Mono.Security.Cryptography;
38 namespace System.Security.Cryptography {
40 public class RSAPKCS1KeyExchangeDeformatter : AsymmetricKeyExchangeDeformatter {
42 private RSA rsa;
43 private string param;
44 private RandomNumberGenerator random;
46 public RSAPKCS1KeyExchangeDeformatter ()
48 rsa = null;
51 public RSAPKCS1KeyExchangeDeformatter (AsymmetricAlgorithm key)
53 SetKey (key);
56 public override string Parameters {
57 get { return null; }
58 set { ; }
61 public RandomNumberGenerator RNG {
62 get { return random; }
63 set { random = value; }
66 public override byte[] DecryptKeyExchange (byte[] rgbData)
68 if (rsa == null) {
69 throw new CryptographicUnexpectedOperationException (
70 Locale.GetText ("No key pair available."));
72 return PKCS1.Decrypt_v15 (rsa, rgbData);
75 public override void SetKey (AsymmetricAlgorithm key)
77 rsa = (RSA)key;