DataObject Konstruktor

Definisi

Ruang nama:

System.Security.Cryptography.Xml

Rakitan:

System.Security.Cryptography.Xml.dll

Paket:

System.Security.Cryptography.Xml v11.0.0-preview.4.26230.115

Menginisialisasi instans baru dari kelas DataObject.

Overload

Nama	Deskripsi
DataObject()	Menginisialisasi instans baru dari kelas DataObject.
DataObject(String, String, String, XmlElement)	Menginisialisasi instans DataObject baru kelas dengan identifikasi, jenis MIME, pengodean, dan data yang ditentukan.

DataObject()

Sumber:

DataObject.cs

Menginisialisasi instans baru dari kelas DataObject.

public:
 DataObject();

public DataObject();

Public Sub New ()

Contoh

Contoh kode berikut menunjukkan cara menghasilkan tanda tangan XML yang menyelimuti.

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

Contoh kode berikut menunjukkan cara memeriksa tanda tangan XML.

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

Keterangan

Kelas DataObject digunakan dengan tanda tangan XML. Setelah menginisialisasi DataObject, Anda dapat menetapkan Data properti dan Id .

DataObject(String, String, String, XmlElement)

Sumber:

DataObject.cs

Menginisialisasi instans DataObject baru kelas dengan identifikasi, jenis MIME, pengodean, dan data yang ditentukan.

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)

Parameter

id

String

Identifikasi untuk menginisialisasi instans DataObject baru dengan.

mimeType

String

Jenis MIME data yang digunakan untuk menginisialisasi instans DataObjectbaru .

encoding

String

Pengodean data yang digunakan untuk menginisialisasi instans baru .DataObject

data

XmlElement

Data untuk menginisialisasi instans DataObject baru dengan.

Pengecualian

ArgumentNullException

Parameternya data adalah null.

Keterangan

Kelas DataObject digunakan dengan tanda tangan XML. Parameter id mengacu pada nama elemen yang berisi data yang akan digunakan. Parameter data mengacu pada daftar simpul XML yang berisi id elemen parameter.