2 // System.Security.Cryptography.AsymmetricAlgorithm Class implementation
5 // Thomas Neidhart (tome@sbox.tugraz.at)
6 // Sebastien Pouliot (sebastien@ximian.com)
8 // Portions (C) 2002, 2003 Motus Technologies Inc. (http://www.motus.com)
9 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
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16 // permit persons to whom the Software is furnished to do so, subject to
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31 using System.Globalization;
32 using System.Runtime.InteropServices;
34 namespace System.Security.Cryptography {
39 public abstract class AsymmetricAlgorithm : IDisposable {
41 protected int KeySizeValue;
42 protected KeySizes[] LegalKeySizesValue;
44 protected AsymmetricAlgorithm ()
48 public abstract string KeyExchangeAlgorithm {
52 public virtual int KeySize {
53 get { return this.KeySizeValue; }
55 if (!KeySizes.IsLegalKeySize (this.LegalKeySizesValue, value))
56 throw new CryptographicException (Locale.GetText ("Key size not supported by algorithm."));
58 this.KeySizeValue = value;
62 public virtual KeySizes[] LegalKeySizes {
63 get { return this.LegalKeySizesValue; }
66 public abstract string SignatureAlgorithm {
70 void IDisposable.Dispose ()
73 GC.SuppressFinalize (this); // Finalization is now unnecessary
81 protected abstract void Dispose (bool disposing);
83 public abstract void FromXmlString (string xmlString);
85 public abstract string ToXmlString (bool includePrivateParameters);
87 public static AsymmetricAlgorithm Create ()
89 return Create ("System.Security.Cryptography.AsymmetricAlgorithm");
92 public static AsymmetricAlgorithm Create (string algName)
94 return (AsymmetricAlgorithm) CryptoConfig.CreateFromName (algName);