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 // (C) 2004 Novell (http://www.novell.com)
13 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
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17 // "Software"), to deal in the Software without restriction, including
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20 // permit persons to whom the Software is furnished to do so, subject to
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24 // included in all copies or substantial portions of the Software.
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36 using System.Globalization;
38 namespace System.Security.Cryptography {
40 public abstract class AsymmetricAlgorithm : IDisposable {
42 protected int KeySizeValue;
43 protected KeySizes[] LegalKeySizesValue;
45 protected AsymmetricAlgorithm ()
49 public abstract string KeyExchangeAlgorithm {
53 public virtual int KeySize {
54 get { return this.KeySizeValue; }
56 if (!KeySizes.IsLegalKeySize (this.LegalKeySizesValue, value))
57 throw new CryptographicException (Locale.GetText ("Key size not supported by algorithm."));
59 this.KeySizeValue = value;
63 public virtual KeySizes[] LegalKeySizes {
64 get { return this.LegalKeySizesValue; }
67 public abstract string SignatureAlgorithm {
71 void IDisposable.Dispose ()
74 GC.SuppressFinalize (this); // Finalization is now unnecessary
82 protected abstract void Dispose (bool disposing);
84 public abstract void FromXmlString (string xmlString);
86 public abstract string ToXmlString (bool includePrivateParameters);
88 public static AsymmetricAlgorithm Create ()
90 return Create ("System.Security.Cryptography.AsymmetricAlgorithm");
93 public static AsymmetricAlgorithm Create (string algName)
95 return (AsymmetricAlgorithm) CryptoConfig.CreateFromName (algName);