DataObject Constructeurs

Référence

Définition

Espace de noms:: System.Security.Cryptography.Xml

Assembly:: System.Security.Cryptography.Xml.dll

Assembly:: System.Security.dll

Important

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Initialise une nouvelle instance de la classe DataObject.

Surcharges

DataObject()	Initialise une nouvelle instance de la classe DataObject.
DataObject(String, String, String, XmlElement)	Initialise une nouvelle instance de la classe DataObject avec l'identification, le type MIME, le codage et les données spécifiés.

DataObject()

Initialise une nouvelle instance de la classe DataObject.

public:
 DataObject();

public DataObject ();

Public Sub New ()

Exemples

L’exemple de code suivant montre comment générer une signature XML enveling.

#using <System.dll>
#using <System.Xml.dll>
#using <System.Security.dll>

using namespace System;
using namespace System::IO;
using namespace System::Security::Cryptography;
using namespace System::Security::Cryptography::Xml;
using namespace System::Xml;
int main()
{
   
   // Create example data to sign.
   XmlDocument^ document = gcnew XmlDocument;
   XmlNode^ node = document->CreateNode( XmlNodeType::Element, "", "MyElement", "samples" );
   node->InnerText = "This is some text";
   document->AppendChild( node );
   Console::Error->WriteLine( "Data to sign:\n{0}\n", document->OuterXml );
   
   // Create the SignedXml message.
   SignedXml^ signedXml = gcnew SignedXml;
   RSA^ key = RSA::Create();
   signedXml->SigningKey = key;
   
   // Create a data object to hold the data to sign.
   DataObject^ dataObject = gcnew DataObject;
   dataObject->Data = document->ChildNodes;
   dataObject->Id = "MyObjectId";
   
   // Add the data object to the signature.
   signedXml->AddObject( dataObject );
   
   // Create a reference to be able to package everything into the
   // message.
   Reference^ reference = gcnew Reference;
   reference->Uri = "#MyObjectId";
   
   // Add it to the message.
   signedXml->AddReference( reference );
   
   // Add a KeyInfo.
   KeyInfo^ keyInfo = gcnew KeyInfo;
   keyInfo->AddClause( gcnew RSAKeyValue( key ) );
   signedXml->KeyInfo = keyInfo;
   
   // Compute the signature.
   signedXml->ComputeSignature();
   
   // Get the XML representation of the signature.
   XmlElement^ xmlSignature = signedXml->GetXml();
   Console::WriteLine( xmlSignature->OuterXml );
}

using System;
using System.IO;
using System.Security.Cryptography;
using System.Security.Cryptography.Xml;
using System.Xml;

public class XMLdsigsample1 {

static void Main(String[] args)
{
     // Create example data to sign.
     XmlDocument document = new XmlDocument();
     XmlNode  node = document.CreateNode(XmlNodeType.Element, "", "MyElement", "samples");
     node.InnerText = "This is some text";
     document.AppendChild(node);
     Console.Error.WriteLine("Data to sign:\n" + document.OuterXml + "\n");

     // Create the SignedXml message.
     SignedXml signedXml = new SignedXml();
     RSA key = RSA.Create();
     signedXml.SigningKey = key;

     // Create a data object to hold the data to sign.
     DataObject dataObject = new DataObject();
     dataObject.Data = document.ChildNodes;
     dataObject.Id = "MyObjectId";

     // Add the data object to the signature.
     signedXml.AddObject(dataObject);

     // Create a reference to be able to package everything into the
     // message.
     Reference reference = new Reference();
     reference.Uri = "#MyObjectId";

     // Add it to the message.
     signedXml.AddReference(reference);

     // Add a KeyInfo.
     KeyInfo keyInfo = new KeyInfo();
     keyInfo.AddClause(new RSAKeyValue(key));
     signedXml.KeyInfo = keyInfo;

     // Compute the signature.
     signedXml.ComputeSignature();

     // Get the XML representation of the signature.
     XmlElement xmlSignature = signedXml.GetXml();
     Console.WriteLine(xmlSignature.OuterXml);
}
}

Imports System.IO
Imports System.Security.Cryptography
Imports System.Security.Cryptography.Xml
Imports System.Xml

 _


Public Class XMLdsigsample1

   Shared Sub Main(args() As [String])
      ' Create example data to sign.
      Dim document As New XmlDocument()
      Dim node As XmlNode = document.CreateNode(XmlNodeType.Element, "", "MyElement", "samples")
      node.InnerText = "This is some text"
      document.AppendChild(node)
      Console.Error.WriteLine("Data to sign:")
      Console.Error.WriteLine()
      Console.Error.WriteLine(document.OuterXml)
      Console.Error.WriteLine()
      
      ' Create the SignedXml message.
      Dim signedXml As New SignedXml()
      Dim key As RSA = RSA.Create()
      signedXml.SigningKey = key
      
      ' Create a data object to hold the data to sign.
      Dim dataObject As New DataObject()
      dataObject.Data = document.ChildNodes
      dataObject.Id = "MyObjectId"
      
      ' Add the data object to the signature.
      signedXml.AddObject(dataObject)
      
      ' Create a reference to be able to package everything into the
      ' message.
      Dim reference As New Reference()
      reference.Uri = "#MyObjectId"
      
      ' Add it to the message.
      signedXml.AddReference(reference)
      
      ' Add a KeyInfo.
      Dim keyInfo As New KeyInfo()
      keyInfo.AddClause(New RSAKeyValue(key))
      signedXml.KeyInfo = keyInfo
      
      ' Compute the signature.
      signedXml.ComputeSignature()
      
      ' Get the XML representation of the signature.
      Dim xmlSignature As XmlElement = signedXml.GetXml()
      Console.WriteLine(xmlSignature.OuterXml)
   End Sub
End Class

L’exemple de code suivant montre comment vérifier une signature XML.

#using <System.dll>
#using <System.Security.dll>
#using <System.Xml.dll>

using namespace System;
using namespace System::Security::Cryptography;
using namespace System::Security::Cryptography::Xml;
using namespace System::IO;
using namespace System::Xml;
int main()
{
   array<String^>^args = System::Environment::GetCommandLineArgs();
   Console::WriteLine( "Verifying {0}...", args[ 1 ] );

   // Create a SignedXml.
   SignedXml^ signedXml = gcnew SignedXml;

   // Load the XML.
   XmlDocument^ xmlDocument = gcnew XmlDocument;
   xmlDocument->PreserveWhitespace = true;
   xmlDocument->Load( gcnew XmlTextReader( args[ 1 ] ) );
   XmlNodeList^ nodeList = xmlDocument->GetElementsByTagName( "Signature" );
   signedXml->LoadXml( safe_cast<XmlElement^>(nodeList[ 0 ]) );
   if ( signedXml->CheckSignature() )
   {
      Console::WriteLine( "Signature check OK" );
   }
   else
   {
      Console::WriteLine( "Signature check FAILED" );
   }
}

using System;
using System.Security.Cryptography;
using System.Security.Cryptography.Xml;
using System.IO;
using System.Xml;

public class Verify {

    public static void Main(String[] args)
    {

        Console.WriteLine("Verifying " + args[0] + "...");

        // Create a SignedXml.
        SignedXml signedXml = new SignedXml();

        // Load the XML.
        XmlDocument xmlDocument = new XmlDocument();
        xmlDocument.PreserveWhitespace = true;
        xmlDocument.Load(new XmlTextReader(args[0]));

        XmlNodeList nodeList = xmlDocument.GetElementsByTagName("Signature");
        signedXml.LoadXml((XmlElement)nodeList[0]);

        if (signedXml.CheckSignature()) {
            Console.WriteLine("Signature check OK");
        } else {
            Console.WriteLine("Signature check FAILED");
        }
    }
}

Imports System.Security.Cryptography
Imports System.Security.Cryptography.Xml
Imports System.IO
Imports System.Xml

 _

Public Class Verify
   
   Public Shared Sub Main(args() As [String])
      
      Console.WriteLine(("Verifying " + args(0) + "..."))
      
      ' Create a SignedXml.
      Dim signedXml As New SignedXml()
      
      ' Load the XML.
      Dim xmlDocument As New XmlDocument()
      xmlDocument.PreserveWhitespace = True
      xmlDocument.Load(New XmlTextReader(args(0)))
      
      Dim nodeList As XmlNodeList = xmlDocument.GetElementsByTagName("Signature")
      signedXml.LoadXml(CType(nodeList(0), XmlElement))
      
      If signedXml.CheckSignature() Then
         Console.WriteLine("Signature check OK")
      Else
         Console.WriteLine("Signature check FAILED")
      End If
   End Sub
End Class

Remarques

La DataObject classe est utilisée avec des signatures XML. Une fois que vous avez initialisé le DataObject, vous pouvez affecter les propriétés et Id les Data propriétés.

S’applique à

DataObject(String, String, String, XmlElement)

Initialise une nouvelle instance de la classe DataObject avec l'identification, le type MIME, le codage et les données spécifiés.

public:
 DataObject(System::String ^ id, System::String ^ mimeType, System::String ^ encoding, System::Xml::XmlElement ^ data);

public DataObject (string id, string mimeType, string encoding, System.Xml.XmlElement data);

new System.Security.Cryptography.Xml.DataObject : string * string * string * System.Xml.XmlElement -> System.Security.Cryptography.Xml.DataObject

Public Sub New (id As String, mimeType As String, encoding As String, data As XmlElement)

Paramètres

id: String

L'identification avec laquelle initialiser la nouvelle instance de DataObject.

mimeType: String

Type MIME des données utilisées pour initialiser la nouvelle instance de DataObject.

encoding: String

Codage des données utilisées pour initialiser la nouvelle instance de DataObject.

data: XmlElement

Données avec lesquelles initialiser la nouvelle instance de DataObject.

Exceptions

ArgumentNullException

Le paramètre data a la valeur null.

Remarques

La DataObject classe est utilisée avec des signatures XML. Le id paramètre fait référence au nom de l’élément qui contient les données à utiliser. Le data paramètre fait référence à la liste de nœuds XML qui contient l’élément id de paramètre.

S’applique à

Partager via

DataObject Constructeurs

Définition

Surcharges

DataObject()

Exemples

Remarques

S’applique à

DataObject(String, String, String, XmlElement)

Paramètres

Exceptions

Remarques

S’applique à

Ressources supplémentaires