mcs/class/System.Security/System.Security.Cryptography.Xml/RSAKeyValue.cs

   1 //
   2 // RSAKeyValue.cs - RSAKeyValue implementation for XML Signature
   3 //
   4 // Author:
   5 //      Sebastien Pouliot (spouliot@motus.com)
   6 //
   7 // (C) 2002, 2003 Motus Technologies Inc. (http://www.motus.com)
   8 //
   9
  10 using System.Text;
  11 using System.Xml;
  12
  13 namespace System.Security.Cryptography.Xml {
  14
  15         public class RSAKeyValue : KeyInfoClause {
  16
  17                 private RSA rsa;
  18
  19                 public RSAKeyValue ()
  20                 {
  21                         rsa = (RSA)RSA.Create ();
  22                 }
  23
  24                 public RSAKeyValue (RSA key)
  25                 {
  26                         rsa = key;
  27                 }
  28
  29                 public RSA Key {
  30                         get { return rsa; }
  31                         set { rsa = value; }
  32                 }
  33
  34                 public override XmlElement GetXml ()
  35                 {
  36                         XmlDocument document = new XmlDocument ();
  37                         XmlElement xel = document.CreateElement (XmlSignature.ElementNames.KeyValue, XmlSignature.NamespaceURI);
  38                         xel.SetAttribute ("xmlns", XmlSignature.NamespaceURI);
  39                         xel.InnerXml = rsa.ToXmlString (false);
  40                         return xel;
  41                 }
  42
  43                 public override void LoadXml (XmlElement value)
  44                 {
  45                         if (value == null)
  46                                 throw new ArgumentNullException ();
  47
  48                         if ((value.LocalName != XmlSignature.ElementNames.KeyValue) || (value.NamespaceURI != XmlSignature.NamespaceURI))
  49                                 throw new CryptographicException ("value");
  50
  51                         rsa.FromXmlString (value.InnerXml);
  52                 }
  53         }
  54 }