2 // RSAPKCS1KeyExchangeDeformatter.cs - Handles PKCS#1 v.1.5 keyex decryption.
5 // Sebastien Pouliot <sebastien@ximian.com>
7 // (C) 2002 Motus Technologies Inc. (http://www.motus.com)
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.Globalization;
31 using System.Runtime.InteropServices;
32 using Mono.Security.Cryptography;
34 namespace System.Security.Cryptography {
37 public class RSAPKCS1KeyExchangeDeformatter : AsymmetricKeyExchangeDeformatter {
40 // private string param;
41 private RandomNumberGenerator random;
43 public RSAPKCS1KeyExchangeDeformatter ()
47 public RSAPKCS1KeyExchangeDeformatter (AsymmetricAlgorithm key)
52 public override string Parameters {
57 public RandomNumberGenerator RNG {
58 get { return random; }
59 set { random = value; }
62 public override byte[] DecryptKeyExchange (byte[] rgbIn)
65 throw new CryptographicUnexpectedOperationException (
66 Locale.GetText ("No key pair available."));
69 byte[] result = PKCS1.Decrypt_v15 (rsa, rgbIn);
73 throw new CryptographicException (Locale.GetText ("PKCS1 decoding error."));
76 public override void SetKey (AsymmetricAlgorithm key)