XmlDsigEnvelopedSignatureTransformとは？ わかりやすく解説

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XmlDsigEnvelopedSignatureTransform クラス

W3C によって定義された、XML デジタル署名のエンベロープ署名変換を表します。

名前空間: System.Security.Cryptography.Xml
アセンブリ: System.Security (system.security.dll 内)
構文構文

Visual Basic (宣言)
Public Class XmlDsigEnvelopedSignatureTransform
    Inherits Transform
Visual Basic (使用法)
Dim instance As XmlDsigEnvelopedSignatureTransform
C#
public class XmlDsigEnvelopedSignatureTransform
 : Transform
C++
public ref class XmlDsigEnvelopedSignatureTransform
 : public Transform
J#
public class XmlDsigEnvelopedSignatureTransform
 extends Transform
JScript
public class XmlDsigEnvelopedSignatureTransform
 extends Transform
解説解説

XmlDsigEnvelopedSignatureTransform クラスは、ダイジェストを計算する前に <Signature> 要素を XML ドキュメントから削除します。この変換では、XML デジタル署名要素を除き、XML ドキュメントのすべての要素を署名および検証できます。

署名を作成して XML ドキュメントに挿入することはできますが、その場合、ドキュメントには追加の要素が存在することになります。ドキュメントがこのように変更されているため、埋め込まれている署名で検証しようとするとエラーになります。この変換では <Signature> 要素が削除され、ドキュメントを元の形式で検証できるようになります。

エンベロープ シグネチャを作成する場合は必ず、XmlDsigEnvelopedSignatureTransform クラスを使用してください。

エンベロープ署名変換の詳細については、www.w3.org/TR/xmldsig-core/ の W3C から提供されている XMLDSIG 仕様のセクション 6.6.4 を参照してください。

使用例使用例

このセクションには、2 つのコード例が含まれています。1 番目の例では、エンベロープ シグネチャを使用して XML ファイルに署名する方法を示します。2 つ目のコード例には、XmlDsigEnvelopedSignatureTransform クラスのメンバを使用した方法が示されています。

例 1

Visual Basic
'
' This example signs an XML file using an
' envelope signature. It then verifies the 
' signed XML.
'
Imports System
Imports System.Security.Cryptography
Imports System.Security.Cryptography.X509Certificates
Imports System.Security.Cryptography.Xml
Imports System.Text
Imports System.Xml



Public Class SignVerifyEnvelope
   
   Overloads Public Shared
 Sub Main(args() As [String])
      Try
         ' Generate a signing key.
         Dim Key As New
 RSACryptoServiceProvider()
         
         ' Create an XML file to sign.
         CreateSomeXml("Example.xml")
         Console.WriteLine("New XML file created.")
         
         ' Sign the XML that was just created and save it in a 
         ' new file.
         SignXmlFile("Example.xml", "SignedExample.xml",
 Key)
         Console.WriteLine("XML file signed.")
         
         ' Verify the signature of the signed XML.
         Console.WriteLine("Verifying signature...")
         Dim result As Boolean
 = VerifyXmlFile("SignedExample.xml")
         
         ' Display the results of the signature verification to \
         ' the console.
         If result Then
            Console.WriteLine("The XML signature is valid.")
         Else
            Console.WriteLine("The XML signature is not valid.")
         End If
      Catch e As CryptographicException
         Console.WriteLine(e.Message)
      End Try
   End Sub 
   
   
   ' Sign an XML file and save the signature in a new file.
   Public Shared Sub SignXmlFile(FileName
 As String, SignedFileName As
 String, Key As RSA)
      ' Create a new XML document.
      Dim doc As New XmlDocument()
      
      ' Format the document to ignore white spaces.
      doc.PreserveWhitespace = False
      
      ' Load the passed XML file using it's name.
      doc.Load(New XmlTextReader(FileName))
      
      ' Create a SignedXml object.
      Dim signedXml As New
 SignedXml(doc)
      
      ' Add the key to the SignedXml document. 
      signedXml.SigningKey = Key
      
      ' Create a reference to be signed.
      Dim reference As New
 Reference()
      reference.Uri = ""
      
      ' Add an enveloped transformation to the reference.
      Dim env As New XmlDsigEnvelopedSignatureTransform()
      reference.AddTransform(env)
      
      ' Add the reference to the SignedXml object.
      signedXml.AddReference(reference)
      
      
      ' Add an RSAKeyValue KeyInfo (optional; helps recipient find key
 to validate).
      Dim keyInfo As New
 KeyInfo()
      keyInfo.AddClause(New RSAKeyValue(CType(Key, RSA)))
      signedXml.KeyInfo = keyInfo
      
      ' Compute the signature.
      signedXml.ComputeSignature()
      
      ' Get the XML representation of the signature and save
      ' it to an XmlElement object.
      Dim xmlDigitalSignature As XmlElement
 = signedXml.GetXml()
      
      ' Append the element to the XML document.
      doc.DocumentElement.AppendChild(doc.ImportNode(xmlDigitalSignature, True))
      
      
      If TypeOf doc.FirstChild Is
 XmlDeclaration Then
         doc.RemoveChild(doc.FirstChild)
      End If
      
      ' Save the signed XML document to a file specified
      ' using the passed string.
      Dim xmltw As New XmlTextWriter(SignedFileName,
 New UTF8Encoding(False))
      doc.WriteTo(xmltw)
      xmltw.Close()
   End Sub 
   ' Verify the signature of an XML file and return the result.
   Public Shared Function
 VerifyXmlFile(Name As [String]) As [Boolean]
      ' Create a new XML document.
      Dim xmlDocument As New
 XmlDocument()
      
      ' Format using white spaces.
      xmlDocument.PreserveWhitespace = True
      
      ' Load the passed XML file into the document. 
      xmlDocument.Load(Name)
      
      ' Create a new SignedXml object and pass it
      ' the XML document class.
      Dim signedXml As New
 SignedXml(xmlDocument)
      
      ' Find the "Signature" node and create a new
      ' XmlNodeList object.
      Dim nodeList As XmlNodeList = xmlDocument.GetElementsByTagName("Signature")
      
      ' Load the signature node.
      signedXml.LoadXml(CType(nodeList(0), XmlElement))
      
      ' Check the signature and return the result.
      Return signedXml.CheckSignature()
   End Function 
   
   
   ' Create example data to sign.
   Public Shared Sub CreateSomeXml(FileName
 As String)
      ' Create a new XmlDocument object.
      Dim document As New
 XmlDocument()
      
      ' Create a new XmlNode object.
      Dim node As XmlNode = document.CreateNode(XmlNodeType.Element,
 "", "MyElement",
 "samples")
      
      ' Add some text to the node.
      node.InnerText = "Example text to be signed."
      
      ' Append the node to the document.
      document.AppendChild(node)
      
      ' Save the XML document to the file name specified.
      Dim xmltw As New XmlTextWriter(FileName,
 New UTF8Encoding(False))
      document.WriteTo(xmltw)
      xmltw.Close()
   End Sub 
End Class
C#
//
// This example signs an XML file using an
// envelope signature. It then verifies the 
// signed XML.
//
using System;
using System.Security.Cryptography;
using System.Security.Cryptography.X509Certificates;
using System.Security.Cryptography.Xml;
using System.Text;
using System.Xml;

public class SignVerifyEnvelope
{

    public static void Main(String[]
 args)
    {
        try
        {
            // Generate a signing key.
            RSACryptoServiceProvider Key = new RSACryptoServiceProvider();

            // Create an XML file to sign.
            CreateSomeXml("Example.xml");
            Console.WriteLine("New XML file created."); 

            // Sign the XML that was just created and save it in a 
            // new file.
            SignXmlFile("Example.xml", "SignedExample.xml", Key);
            Console.WriteLine("XML file signed."); 

            // Verify the signature of the signed XML.
            Console.WriteLine("Verifying signature...");
            bool result = VerifyXmlFile("SignedExample.xml");

            // Display the results of the signature verification to
 \
            // the console.
            if(result)
            {
                Console.WriteLine("The XML signature is valid.");
            }
            else
            {
                Console.WriteLine("The XML signature is not valid.");
            }
        }
        catch(CryptographicException e)
        {
            Console.WriteLine(e.Message);
        }
    }

    // Sign an XML file and save the signature in a new file.
    public static void SignXmlFile(string
 FileName, string SignedFileName, RSA Key)
    {
        // Create a new XML document.
        XmlDocument doc = new XmlDocument();

        // Format the document to ignore white spaces.
        doc.PreserveWhitespace = false;

        // Load the passed XML file using it's name.
        doc.Load(new XmlTextReader(FileName));

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

        // Add the key to the SignedXml document. 
        signedXml.SigningKey = Key;

        // Create a reference to be signed.
        Reference reference = new Reference();
        reference.Uri = "";

        // Add an enveloped transformation to the reference.
        XmlDsigEnvelopedSignatureTransform env = new XmlDsigEnvelopedSignatureTransform();
        reference.AddTransform(env);

        // Add the reference to the SignedXml object.
        signedXml.AddReference(reference);

        
        // Add an RSAKeyValue KeyInfo (optional; helps recipient find
 key to validate).
        KeyInfo keyInfo = new KeyInfo();
        keyInfo.AddClause(new RSAKeyValue((RSA)Key));
        signedXml.KeyInfo = keyInfo;

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

        // Get the XML representation of the signature and save
        // it to an XmlElement object.
        XmlElement xmlDigitalSignature = signedXml.GetXml();

        // Append the element to the XML document.
        doc.DocumentElement.AppendChild(doc.ImportNode(xmlDigitalSignature, true));
        
        
        if (doc.FirstChild is XmlDeclaration)  
        {
            doc.RemoveChild(doc.FirstChild);
        }

        // Save the signed XML document to a file specified
        // using the passed string.
        XmlTextWriter xmltw = new XmlTextWriter(SignedFileName,
 new UTF8Encoding(false));
        doc.WriteTo(xmltw);
        xmltw.Close();
    }
    // Verify the signature of an XML file and return the result.
    public static Boolean VerifyXmlFile(String
 Name)
    {
        // Create a new XML document.
        XmlDocument xmlDocument = new XmlDocument();

        // Format using white spaces.
        xmlDocument.PreserveWhitespace = true;

        // Load the passed XML file into the document. 
        xmlDocument.Load(Name);

        // Create a new SignedXml object and pass it
        // the XML document class.
        SignedXml signedXml = new SignedXml(xmlDocument);

        // Find the "Signature" node and create a new
        // XmlNodeList object.
        XmlNodeList nodeList = xmlDocument.GetElementsByTagName("Signature");

        // Load the signature node.
        signedXml.LoadXml((XmlElement)nodeList[0]);

        // Check the signature and return the result.
        return signedXml.CheckSignature();
    }

    // Create example data to sign.
    public static void CreateSomeXml(string
 FileName)
    {
        // Create a new XmlDocument object.
        XmlDocument document = new XmlDocument();

        // Create a new XmlNode object.
        XmlNode  node = document.CreateNode(XmlNodeType.Element, "", "MyElement",
 "samples");
        
        // Add some text to the node.
        node.InnerText = "Example text to be signed.";

        // Append the node to the document.
        document.AppendChild(node);

        // Save the XML document to the file name specified.
        XmlTextWriter xmltw = new XmlTextWriter(FileName, new
 UTF8Encoding(false));
        document.WriteTo(xmltw);
        xmltw.Close();
    }
}
C++
//
// This example signs an XML file using an
// envelope signature. It then verifies the 
// signed XML.
//
#using <System.Security.dll>
#using <System.Xml.dll>

using namespace System;
using namespace System::Security::Cryptography;
using namespace System::Security::Cryptography::X509Certificates;
using namespace System::Security::Cryptography::Xml;
using namespace System::Text;
using namespace System::Xml;

// Sign an XML file and save the signature in a new file.
void SignXmlFile( String^ FileName, String^ SignedFileName, RSA^
 Key )
{
   
   // Create a new XML document.
   XmlDocument^ doc = gcnew XmlDocument;
   
   // Format the document to ignore white spaces.
   doc->PreserveWhitespace = false;
   
   // Load the passed XML file using its name.
   doc->Load( gcnew XmlTextReader( FileName ) );
   
   // Create a SignedXml object.
   SignedXml^ signedXml = gcnew SignedXml( doc );
   
   // Add the key to the SignedXml document. 
   signedXml->SigningKey = Key;
   
   // Create a reference to be signed.
   Reference^ reference = gcnew Reference;
   reference->Uri = "";
   
   // Add an enveloped transformation to the reference.
   XmlDsigEnvelopedSignatureTransform^ env = gcnew XmlDsigEnvelopedSignatureTransform;
   reference->AddTransform( env );
   
   // Add the reference to the SignedXml object.
   signedXml->AddReference( reference );
   
   // Add an RSAKeyValue KeyInfo (optional; helps recipient find key
 to validate).
   KeyInfo^ keyInfo = gcnew KeyInfo;
   keyInfo->AddClause( gcnew RSAKeyValue( safe_cast<RSA^>(Key) ) );
   signedXml->KeyInfo = keyInfo;
   
   // Compute the signature.
   signedXml->ComputeSignature();
   
   // Get the XML representation of the signature and save
   // it to an XmlElement object.
   XmlElement^ xmlDigitalSignature = signedXml->GetXml();
   
   // Append the element to the XML document.
   doc->DocumentElement->AppendChild( doc->ImportNode( xmlDigitalSignature,
 true ) );
   if ( (doc->FirstChild)->GetType() == XmlDeclaration::typeid
 )
   {
      doc->RemoveChild( doc->FirstChild );
   }

   
   // Save the signed XML document to a file specified
   // using the passed string.
   XmlTextWriter^ xmltw = gcnew XmlTextWriter( SignedFileName,gcnew UTF8Encoding(
 false ) );
   doc->WriteTo( xmltw );
   xmltw->Close();
}


// Verify the signature of an XML file and return the result.
Boolean VerifyXmlFile( String^ Name )
{
   
   // Create a new XML document.
   XmlDocument^ xmlDocument = gcnew XmlDocument;
   
   // Format using white spaces.
   xmlDocument->PreserveWhitespace = true;
   
   // Load the passed XML file into the document. 
   xmlDocument->Load( Name );
   
   // Create a new SignedXml object and pass it
   // the XML document class.
   SignedXml^ signedXml = gcnew SignedXml( xmlDocument );
   
   // Find the "Signature" node and create a new
   // XmlNodeList object.
   XmlNodeList^ nodeList = xmlDocument->GetElementsByTagName( "Signature"
 );
   
   // Load the signature node.
   signedXml->LoadXml( safe_cast<XmlElement^>(nodeList->Item( 0 )) );
   
   // Check the signature and return the result.
   return signedXml->CheckSignature();
}


// Create example data to sign.
void CreateSomeXml( String^ FileName )
{
   
   // Create a new XmlDocument object.
   XmlDocument^ document = gcnew XmlDocument;
   
   // Create a new XmlNode object.
   XmlNode^ node = document->CreateNode( XmlNodeType::Element, "", "MyElement",
 "samples" );
   
   // Add some text to the node.
   node->InnerText = "Example text to be signed.";
   
   // Append the node to the document.
   document->AppendChild( node );
   
   // Save the XML document to the file name specified.
   XmlTextWriter^ xmltw = gcnew XmlTextWriter( FileName,gcnew UTF8Encoding( false
 ) );
   document->WriteTo( xmltw );
   xmltw->Close();
}

int main()
{
   try
   {
      
      // Generate a signing key.
      RSACryptoServiceProvider^ Key = gcnew RSACryptoServiceProvider;
      
      // Create an XML file to sign.
      CreateSomeXml( "Example.xml" );
      Console::WriteLine( "New XML file created." );
      
      // Sign the XML that was just created and save it in a 
      // new file.
      SignXmlFile( "Example.xml", "SignedExample.xml", Key );
      Console::WriteLine( "XML file signed." );
      
      // Verify the signature of the signed XML.
      Console::WriteLine( "Verifying signature..." );
      bool result = VerifyXmlFile( "SignedExample.xml"
 );
      
      // Display the results of the signature verification to
      // the console.
      if ( result )
      {
         Console::WriteLine( "The XML signature is valid." );
      }
      else
      {
         Console::WriteLine( "The XML signature is not valid." );
      }
   }
   catch ( CryptographicException^ e ) 
   {
      Console::WriteLine( e->Message );
   }

}
J#
//
// This example signs an XML file using an
// envelope signature. It then verifies the 
// signed XML.
//
import System.*;
import System.Security.Cryptography.*;
import System.Security.Cryptography.X509Certificates.*;
import System.Security.Cryptography.Xml.*;
import System.Text.*;
import System.Xml.*;

public class SignVerifyEnvelope
{
    public static void main(String[]
 args)
    {
        try {
            // Generate a signing key.
            RSACryptoServiceProvider key = new RSACryptoServiceProvider();

            // Create an XML file to sign.
            CreateSomeXml("Example.xml");
            Console.WriteLine("New XML file created.");

            // Sign the XML that was just created and save it in a 
            // new file.
            SignXmlFile("Example.xml", "SignedExample.xml", key);
            Console.WriteLine("XML file signed.");

            // Verify the signature of the signed XML.
            Console.WriteLine("Verifying signature...");

            boolean result = VerifyXmlFile("SignedExample.xml").booleanValue();

            // Display the results of the signature verification to
 \
            // the console.
            if (result) {
                Console.WriteLine("The XML signature is valid.");
            }
            else {
                Console.WriteLine("The XML signature is not valid.");
            }
        }
        catch (CryptographicException e) {
            Console.WriteLine(e.get_Message());
        }
    } //main

    // Sign an XML file and save the signature in a new file.
    public static void SignXmlFile(String
 fileName, String signedFileName, 
        RSA key)
    {
        // Create a new XML document.
        XmlDocument doc = new XmlDocument();

        // Format the document to ignore white spaces.
        doc.set_PreserveWhitespace(false);

        // Load the passed XML file using it's name.
        doc.Load(new XmlTextReader(fileName));

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

        // Add the key to the SignedXml document. 
        signedXml.set_SigningKey(key);

        // Create a reference to be signed.
        Reference reference = new Reference();
        reference.set_Uri("");

        // Add a transformation to the reference.
        Transform trns = new XmlDsigC14NTransform();

        reference.AddTransform(trns);

        // Add an enveloped transformation to the reference.
        XmlDsigEnvelopedSignatureTransform env = 
            new XmlDsigEnvelopedSignatureTransform();
        reference.AddTransform(env);

        // Add the reference to the SignedXml object.
        signedXml.AddReference(reference);

        // Add an RSAKeyValue KeyInfo (optional; helps recipient 
        // find key to validate).
        KeyInfo keyInfo = new KeyInfo();
        keyInfo.AddClause(new RSAKeyValue(((RSA)(key))));
        signedXml.set_KeyInfo(keyInfo);

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

        // Get the XML representation of the signature and save
        // it to an XmlElement object.
        XmlElement xmlDigitalSignature = signedXml.GetXml();

        // Append the element to the XML document.
        doc.get_DocumentElement().AppendChild(doc.ImportNode(
            xmlDigitalSignature, true));
        if (doc.get_FirstChild() instanceof XmlDeclaration) {
            doc.RemoveChild(doc.get_FirstChild());
        }

        // Save the signed XML document to a file specified
        // using the passed string.
        XmlTextWriter xmlTW = new XmlTextWriter(signedFileName,
 
            new UTF8Encoding(false));
        doc.WriteTo(xmlTW);
        xmlTW.Close();
    } //SignXmlFile   

    // Verify the signature of an XML file and return the result.
    public static Boolean VerifyXmlFile(String
 name)
    {
        // Create a new XML document.
        XmlDocument xmlDocument = new XmlDocument();

        // Format using white spaces.
        xmlDocument.set_PreserveWhitespace(true);

        // Load the passed XML file into the document. 
        xmlDocument.Load(name);

        // Create a new SignedXml object and pass it
        // the XML document class.
        SignedXml signedXml = new SignedXml(xmlDocument);

        // Find the "Signature" node and create a new
        // XmlNodeList object.
        XmlNodeList nodeList = xmlDocument.GetElementsByTagName("Signature");

        // Load the signature node.
        signedXml.LoadXml(((XmlElement)(nodeList.get_ItemOf(0))));

        // Check the signature and return the result.
        return new Boolean(signedXml.CheckSignature());
    } //VerifyXmlFile   

    // Create example data to sign.
    public static void CreateSomeXml(String
 fileName)
    {
        // Create a new XmlDocument object.
        XmlDocument document = new XmlDocument();

        // Create a new XmlNode object.
        XmlNode node = document.CreateNode(XmlNodeType.Element, "", 
            "MyElement", "samples");

        // Add some text to the node.
        node.set_InnerText("Example text to be signed.");

        // Append the node to the document.
        document.AppendChild(node);

        // Save the XML document to the file name specified.
        XmlTextWriter xmlTW = new XmlTextWriter(fileName, 
            new UTF8Encoding(false));
        document.WriteTo(xmlTW);
        xmlTW.Close();
    } //CreateSomeXml
} //SignVerifyEnvelope

例 2

Visual Basic
Imports System
Imports System.IO
Imports System.Xml
Imports System.Security.Cryptography
Imports System.Security.Cryptography.Xml
Imports System.Security.Cryptography.X509Certificates

Public Class Form1
    Inherits System.Windows.Forms.Form

    Private certificatePath As String
 = "..\\my509.cer"

    ' Event handler for Run button.
    Private Sub Button1_Click( _
        ByVal sender As System.Object, _
        ByVal e As System.EventArgs) Handles
 Button1.Click

        tbxOutput.Cursor = Cursors.WaitCursor
        tbxOutput.Text = ""

        ' Encrypt an XML message
        Dim productsXml As XmlDocument = LoadProducts()
        ShowTransformProperties(productsXml)

        SignDocument(productsXml)
        ShowTransformProperties(productsXml)

        ' Use XmlDsigEnvelopedSignatureTransform to resolve a Uri.
        Dim baseUri As New
 Uri("http://www.contoso.com")
        Dim relativeUri As String
 = "xml"
        Dim absoluteUri As Uri = ResolveUris(baseUri,
 relativeUri)

        ' Align interface and conclude application.
        WriteLine(vbCrLf + "This sample completed successfully;"
 + _
            " press Exit to continue.")

        ' Reset the cursor.
        tbxOutput.Cursor = Cursors.Default
    End Sub

    ' Encrypt the text in the specified XmlDocument.
    Private Sub ShowTransformProperties(ByVal
 xmlDoc As XmlDocument)
        Dim xmlTransform As New
 XmlDsigEnvelopedSignatureTransform

        ' Ensure the transform is using the proper algorithm.
        xmlTransform.Algorithm = _
            SignedXml.XmlDsigEnvelopedSignatureTransformUrl

        ' Retrieve the XML representation of the current transform.
        Dim xmlInTransform As XmlElement =
 xmlTransform.GetXml()

        WriteLine(vbCrLf + "Xml representation of the current
 transform: ")
        WriteLine(xmlInTransform.OuterXml)

        ' Retrieve the valid input types for the current transform.
        Dim validInTypes() As Type = xmlTransform.InputTypes

        ' Verify the xmlTransform can accept the XMLDocument as an
        ' input type.
        For i As Int16 = 0 To
 validInTypes.Length Step 1
            If (validInTypes(i).Equals(xmlDoc.GetType())) Then
                ' Load the document into the transfrom.
                xmlTransform.LoadInput(xmlDoc)

                Dim IncludeComments As Boolean
 = True
                ' This transform is created for demonstration purposes.
                Dim secondTransform As _
                    New XmlDsigEnvelopedSignatureTransform(IncludeComments)

                Dim classDescription As String
 = secondTransform.ToString()

                ' This call does not perform as expected.
                ' An enveloped signature has no inner XML elements
                secondTransform.LoadInnerXml(xmlDoc.SelectNodes("//."))
                Exit For
            End If
        Next

        Dim validOutTypes() As Type = xmlTransform.OutputTypes
        For i As Int16 = validOutTypes.Length
 - 1 To 0 Step -1
            If (validOutTypes(i).Equals(GetType(System.Xml.XmlDocument)))
 Then
                Try
                    Dim xmlDocumentType As
 Type
                    xmlDocumentType = GetType(System.Xml.XmlDocument)

                    Dim xmlDocumentOutput As
 XmlDocument
                    xmlDocumentOutput = CType( _
                        xmlTransform.GetOutput(xmlDocumentType), _
                        XmlDocument)

                    ' Display to the console the Xml before and after
                    ' encryption.
                    WriteLine("Result of the GetOutput method
 call from " + _
                        "the current transform: "
 + _
                        xmlDocumentOutput.OuterXml)
                Catch ex As Exception
                    WriteLine("Unexpected exception caught: "
 + ex.ToString())

                End Try
                Exit For
            ElseIf (validOutTypes(i).Equals( _
                GetType(System.Xml.XmlNodeList))) Then

                Try
                    Dim xmlNodeListType As
 Type
                    xmlNodeListType = GetType(System.Xml.XmlNodeList)
                    Dim xmlNodes As XmlNodeList
                    xmlNodes = CType( _
                        xmlTransform.GetOutput(xmlNodeListType), _
                        System.Xml.XmlNodeList)

                    ' Display to the console the Xml before and after
                    ' encryption.
                    WriteLine("Encoding the following message:
 " + _
                        xmlDoc.InnerText)

                    WriteLine("Nodes of the XmlNodeList retrieved
 from " + _
                        "GetOutput:")

                    For j As Int16 = 0 To
 xmlNodes.Count - 1 Step 1
                        WriteLine("Node " + j.ToString()
 + " has the " + _
                            "following name: " + xmlNodes.Item(j).Name
 + _
                            " and the following InnerXml: "
 + _
                            xmlNodes.Item(j).InnerXml)
                    Next
                Catch ex As Exception
                    WriteLine("Unexpected exception caught: "
 + ex.ToString())
                End Try

                Exit For
            Else
                Dim outputObject As Object
 = xmlTransform.GetOutput()
            End If
        Next
    End Sub

    Private Function LoadProducts() As
 XmlDocument
        Dim xmlDoc As New
 XmlDocument

        Dim contosoProducts As String
 = "<PRODUCTS>"
        contosoProducts += "<PRODUCT><ID>123</ID>"
        contosoProducts += "<DESCRIPTION>Router</DESCRIPTION></PRODUCT>"
        contosoProducts += "<PRODUCT><ID>456</ID>"
        contosoProducts += "<DESCRIPTION>Keyboard</DESCRIPTION></PRODUCT>"
        contosoProducts += "<PRODUCT><ID>789</ID>"
        contosoProducts += "<DESCRIPTION>Monitor</DESCRIPTION></PRODUCT>"
        contosoProducts += "</PRODUCTS>"

        xmlDoc.LoadXml(contosoProducts)
        Return xmlDoc
    End Function

    ' Create a signature and add it to the specified document.
    Private Sub SignDocument(ByRef
 xmlDoc As XmlDocument)
        ' Generate a signing key.
        Dim Key As New RSACryptoServiceProvider

        ' Create a SignedXml object.
        Dim signedXml As New
 SignedXml(xmlDoc)

        ' Add the key to the SignedXml document. 
        signedXml.SigningKey = Key

        ' Create a reference to be signed.
        Dim reference As New
 Reference
        Reference.Uri = ""

        ' Add an enveloped transformation to the reference.
        Reference.AddTransform(New XmlDsigEnvelopedSignatureTransform)

        ' Add the reference to the SignedXml object.
        SignedXml.AddReference(Reference)

        Try
            ' Create a new KeyInfo object.
            Dim keyInfo As New
 keyInfo

            ' Load the X509 certificate.
            Dim MSCert As X509Certificate
            MSCert = X509Certificate.CreateFromCertFile(certificatePath)

            ' Load the certificate into a KeyInfoX509Data object
            ' and add it to the KeyInfo object.
            keyInfo.AddClause(New KeyInfoX509Data(MSCert))

            ' Add the KeyInfo object to the SignedXml object.
            signedXml.KeyInfo = keyInfo

        Catch ex As FileNotFoundException
            WriteLine("Unable to load the following file: "
 + certificatePath)

        End Try
        ' Compute the signature.
        signedXml.ComputeSignature()

        ' Add the signature branch to the original tree so it is enveloped.
        xmlDoc.DocumentElement.AppendChild(signedXml.GetXml())
    End Sub

    ' Resolve the specified base and relative Uri's .
    Private Function ResolveUris( _
        ByVal baseUri As Uri, _
        ByVal relativeUri As String)
 As Uri

        Dim xmlResolver As New
 XmlUrlResolver

        xmlResolver.Credentials = _
            System.Net.CredentialCache.DefaultCredentials

        Dim xmlTransform As New
 XmlDsigEnvelopedSignatureTransform
        xmlTransform.Resolver = xmlResolver

        Dim absoluteUri As Uri = xmlResolver.ResolveUri(baseUri,
 relativeUri)

        If Not absoluteUri Is
 Nothing Then
            WriteLine(vbCrLf + "Resolved the base Uri and relative
 Uri " + _
                "to the following:")
            WriteLine(absoluteUri.ToString())
        Else
            WriteLine("Unable to resolve the base Uri and relative
 Uri")
        End If

        Return absoluteUri
    End Function

    ' Write specified message and carriage return to the output textbox.
    Private Sub WriteLine(ByVal
 message As String)
        tbxOutput.AppendText(Message + vbCrLf)

    End Sub

    ' Event handler for Exit button.
    Private Sub Button2_Click( _
        ByVal sender As System.Object, _
        ByVal e As System.EventArgs) Handles
 Button2.Click

        Application.Exit()
    End Sub
#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    Protected Overloads Overrides
 Sub Dispose(ByVal disposing As
 Boolean)
        If disposing Then
            If Not (components Is
 Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    Friend WithEvents Panel2 As
 System.Windows.Forms.Panel
    Friend WithEvents Panel1 As
 System.Windows.Forms.Panel
    Friend WithEvents Button1 As
 System.Windows.Forms.Button
    Friend WithEvents Button2 As
 System.Windows.Forms.Button
    Friend WithEvents tbxOutput As
 System.Windows.Forms.RichTextBox
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.Panel2 = New System.Windows.Forms.Panel
        Me.Button1 = New System.Windows.Forms.Button
        Me.Button2 = New System.Windows.Forms.Button
        Me.Panel1 = New System.Windows.Forms.Panel
        Me.tbxOutput = New System.Windows.Forms.RichTextBox
        Me.Panel2.SuspendLayout()
        Me.Panel1.SuspendLayout()
        Me.SuspendLayout()
        '
        'Panel2
        '
        Me.Panel2.Controls.Add(Me.Button1)
        Me.Panel2.Controls.Add(Me.Button2)
        Me.Panel2.Dock = System.Windows.Forms.DockStyle.Bottom
        Me.Panel2.DockPadding.All = 20
        Me.Panel2.Location = New System.Drawing.Point(0,
 320)
        Me.Panel2.Name = "Panel2"
        Me.Panel2.Size = New System.Drawing.Size(616,
 64)
        Me.Panel2.TabIndex = 1
        '
        'Button1
        '
        Me.Button1.Dock = System.Windows.Forms.DockStyle.Right
        Me.Button1.Font = New System.Drawing.Font(
 _
            "Microsoft Sans Serif", _
            9.0!, _
            System.Drawing.FontStyle.Regular, _
            System.Drawing.GraphicsUnit.Point, _
            CType(0, Byte))
        Me.Button1.Location = New System.Drawing.Point(446,
 20)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(75,
 24)
        Me.Button1.TabIndex = 2
        Me.Button1.Text = "&Run"
        '
        'Button2
        '
        Me.Button2.Dock = System.Windows.Forms.DockStyle.Right
        Me.Button2.Font = New System.Drawing.Font(
 _
            "Microsoft Sans Serif", _
            9.0!, _
            System.Drawing.FontStyle.Regular, _
            System.Drawing.GraphicsUnit.Point, _
            CType(0, Byte))
        Me.Button2.Location = New System.Drawing.Point(521,
 20)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(75,
 24)
        Me.Button2.TabIndex = 3
        Me.Button2.Text = "E&xit"
        '
        'Panel1
        '
        Me.Panel1.Controls.Add(Me.tbxOutput)
        Me.Panel1.Dock = System.Windows.Forms.DockStyle.Fill
        Me.Panel1.DockPadding.All = 20
        Me.Panel1.Location = New System.Drawing.Point(0,
 0)
        Me.Panel1.Name = "Panel1"
        Me.Panel1.Size = New System.Drawing.Size(616,
 320)
        Me.Panel1.TabIndex = 2
        '
        'tbxOutput
        '
        Me.tbxOutput.AccessibleDescription = _
            "Displays output from application."
        Me.tbxOutput.AccessibleName = "Output
 textbox."
        Me.tbxOutput.Dock = System.Windows.Forms.DockStyle.Fill
        Me.tbxOutput.Location = New System.Drawing.Point(20,
 20)
        Me.tbxOutput.Name = "tbxOutput"
        Me.tbxOutput.Size = New System.Drawing.Size(576,
 280)
        Me.tbxOutput.TabIndex = 1
        Me.tbxOutput.Text = "Click the Run
 button to run the application."
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6,
 15)
        Me.ClientSize = New System.Drawing.Size(616,
 384)
        Me.Controls.Add(Me.Panel1)
        Me.Controls.Add(Me.Panel2)
        Me.Name = "Form1"
        Me.Text = "XmlDsigEnvelopedSignatureTransform"
        Me.Panel2.ResumeLayout(False)
        Me.Panel1.ResumeLayout(False)
        Me.ResumeLayout(False)

    End Sub

#End Region
End Class
'
' This sample produces the following output:
'
' Xml representation of the current transform: 
' <Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"
' xmlns="http://www.w3.org/2000/09/xmldsig#" />
' Result of the GetOutput method call from the current transform: <PRODUCTS>
' <PRODUCT><ID>123</ID><DESCRIPTION>Router</DESCRIPTION></PRODUCT><PRODUCT>
' <ID>456</ID><DESCRIPTION>Keyboard</DESCRIPTION></PRODUCT><PRODUCT><ID>789
' </ID><DESCRIPTION>Monitor</DESCRIPTION></PRODUCT></PRODUCTS>
' Unable to load the following file: ..\\my509.cer
' 
' Xml representation of the current transform: 
' <Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"
'  xmlns="http://www.w3.org/2000/09/xmldsig#" />
' Result of the GetOutput method call from the current transform: <PRODUCTS>
' <PRODUCT><ID>123</ID><DESCRIPTION>Router</DESCRIPTION></PRODUCT><PRODUCT>
' <ID>456</ID><DESCRIPTION>Keyboard</DESCRIPTION></PRODUCT><PRODUCT><ID>789
' </ID><DESCRIPTION>Monitor</DESCRIPTION></PRODUCT><Signature
 xmlns=
' "http://www.w3.org/2000/09/xmldsig#"><SignedInfo><CanonicalizationMethod
 
' Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"
 />
' <SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"
 />
' <Reference URI=""><Transforms><Transform
 Algorithm="http://www.w3.org/2000
' /09/xmldsig#enveloped-signature" /></Transforms><DigestMethod
 Algorithm=
' "http://www.w3.org/2000/09/xmldsig#sha1" /><DigestValue>KvPW6HUiIUMEDS0YSoTg
' po2JPbA=</DigestValue></Reference></SignedInfo><SignatureValue>c/njCGDru/aWA
' mWG83I+mWO040xOzxvmNx0b0o8ZyPc9j5VwApdAt103OGBtB1H6EkOvt7Ekw+PVuUo8m5LzLPyaT
' xUDMbb2kZZ5itSkGD4rmMUMUMuzrkAoquJZjxeOydBJ2CMehV2rE3RMPLIwRX176DZVy5JKU6Cb7
' PR2Rpw=</SignatureValue></Signature></PRODUCTS>
' 
' Resolved the base Uri and relative Uri to the following:
' http://www.contoso.com/xml
' 
' This sample completed successfully; press Exit to continue.
C#
using System;
using System.IO;
using System.Xml;
using System.Security.Cryptography;
using System.Security.Cryptography.Xml;
using System.Security.Cryptography.X509Certificates;

class Class1
{
    private static string
 Certificate =  "..\\..\\my509.cer";

    [STAThread]
    static void Main(string[]
 args)
    {
        // Encrypt an XML message
        XmlDocument productsXml = LoadProducts();
        ShowTransformProperties(productsXml);

        SignDocument(ref productsXml);
        ShowTransformProperties(productsXml);

        // Use XmlDsigEnvelopedSignatureTransform to resolve a Uri.
        Uri baseUri = new Uri("http://www.contoso.com");
        string relativeUri = "xml";
        Uri absoluteUri = ResolveUris(baseUri, relativeUri);

        Console.WriteLine("This sample completed successfully; " +
            "press Enter to exit.");
        Console.ReadLine();
    }

    // Encrypt the text in the specified XmlDocument.
    private static void
 ShowTransformProperties(XmlDocument xmlDoc)
    {
        XmlDsigEnvelopedSignatureTransform xmlTransform = 
            new XmlDsigEnvelopedSignatureTransform();

        // Ensure the transform is using the proper algorithm.
        xmlTransform.Algorithm =
            SignedXml.XmlDsigEnvelopedSignatureTransformUrl;

        // Retrieve the XML representation of the current transform.
        XmlElement xmlInTransform = xmlTransform.GetXml();

        Console.WriteLine("\nXml representation of the current transform: ");
        Console.WriteLine(xmlInTransform.OuterXml);

        // Retrieve the valid input types for the current transform.
        Type[] validInTypes = xmlTransform.InputTypes;

        // Verify the xmlTransform can accept the XMLDocument as an
        // input type.
        for (int i=0; i<validInTypes.Length;
 i++)
        {
            if (validInTypes[i] == xmlDoc.GetType())
            {
                // Load the document into the transfrom.
                xmlTransform.LoadInput(xmlDoc);

                bool IncludeComments = true;
                // This transform is created for demonstration purposes.
                XmlDsigEnvelopedSignatureTransform secondTransform =
                    new XmlDsigEnvelopedSignatureTransform(IncludeComments);

                string classDescription = secondTransform.ToString();

                // This call does not perform as expected.
                // An enveloped signature has no inner XML elements
                secondTransform.LoadInnerXml(xmlDoc.SelectNodes("//."));

                break;
            }
        }

        Type[] validOutTypes = xmlTransform.OutputTypes;

        for (int i=validOutTypes.Length-1;
 i >= 0; i--)
        {
            if (validOutTypes[i] == typeof(System.Xml.XmlDocument))
            {
                try 
                {
                    Type xmlDocumentType = typeof(System.Xml.XmlDocument);
                    XmlDocument xmlDocumentOutput = (XmlDocument) 
                        xmlTransform.GetOutput(xmlDocumentType);

                    // Display to the console the Xml before and after
                    // encryption.
                    Console.WriteLine("Result of the GetOutput method call"
 +
                        " from the current transform: " + 
                        xmlDocumentOutput.OuterXml);
                }
                catch (Exception ex)
                {
                    Console.WriteLine("Unexpected exception caught: " +
                        ex.ToString());
                }

                break;
            }
            else if (validOutTypes[i] == typeof(System.Xml.XmlNodeList))
            {
                try 
                {
                    Type xmlNodeListType = typeof(System.Xml.XmlNodeList);
                    XmlNodeList xmlNodes = (XmlNodeList) 
                        xmlTransform.GetOutput(xmlNodeListType);

                    // Display to the console the Xml before and after
                    // encryption.
                    Console.WriteLine("Encoding the following message: "
 +
                        xmlDoc.InnerText);

                    Console.WriteLine("Nodes of the XmlNodeList retrieved "
 +
                        "from GetOutput:");
                    for (int j=0; j < xmlNodes.Count;
 j++)
                    {
                        Console.WriteLine("Node " + j + 
                            " has the following name: " + 
                            xmlNodes.Item(j).Name + 
                            " and the following InnerXml: " + 
                            xmlNodes.Item(j).InnerXml);
                    }
                }
                catch (Exception ex)
                {
                    Console.WriteLine("Unexpected exception caught: " +
                        ex.ToString());
                }

                break;
            }
            else
            {
                object outputObject = xmlTransform.GetOutput();
            }
        }
    }

    // Create an XML document describing various products.
    private static XmlDocument LoadProducts()
    {
        XmlDocument xmlDoc = new XmlDocument();

        string contosoProducts = "<PRODUCTS>";
        contosoProducts += "<PRODUCT><ID>123</ID>";
        contosoProducts += "<DESCRIPTION>Router</DESCRIPTION></PRODUCT>";
        contosoProducts += "<PRODUCT><ID>456</ID>";
        contosoProducts += "<DESCRIPTION>Keyboard</DESCRIPTION></PRODUCT>";
        contosoProducts += "<PRODUCT><ID>789</ID>";
        contosoProducts += "<DESCRIPTION>Monitor</DESCRIPTION></PRODUCT>";
        contosoProducts += "</PRODUCTS>";

        xmlDoc.LoadXml(contosoProducts);
        return xmlDoc;
    }

    // Create a signature and add it to the specified document.
    private static void
 SignDocument(ref XmlDocument xmlDoc)
    {
        // Generate a signing key.
        RSACryptoServiceProvider Key = new RSACryptoServiceProvider();

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

        // Add the key to the SignedXml document. 
        signedXml.SigningKey = Key;

        // Create a reference to be signed.
        Reference reference = new Reference();
        reference.Uri = "";

        // Add an enveloped transformation to the reference.
        reference.AddTransform(new XmlDsigEnvelopedSignatureTransform());

        // Add the reference to the SignedXml object.
        signedXml.AddReference(reference);

        try 
        {
            // Create a new KeyInfo object.
            KeyInfo keyInfo = new KeyInfo();

            // Load the X509 certificate.
            X509Certificate MSCert =
                X509Certificate.CreateFromCertFile(Certificate);

            // Load the certificate into a KeyInfoX509Data object
            // and add it to the KeyInfo object.
            keyInfo.AddClause(new KeyInfoX509Data(MSCert));

            // Add the KeyInfo object to the SignedXml object.
            signedXml.KeyInfo = keyInfo;
        }
        catch (FileNotFoundException ex)
        {
            Console.WriteLine("Unable to locate the following file: " +
 
                Certificate);
        }

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

        // Add the signature branch to the original tree so it is enveloped.
        xmlDoc.DocumentElement.AppendChild(signedXml.GetXml());
    }

    // Resolve the specified base and relative Uri's .
    private static Uri ResolveUris(Uri baseUri,
 string relativeUri)
    {
        XmlUrlResolver xmlResolver = new XmlUrlResolver();
        xmlResolver.Credentials = 
            System.Net.CredentialCache.DefaultCredentials;

        XmlDsigEnvelopedSignatureTransform xmlTransform =
            new XmlDsigEnvelopedSignatureTransform();
        xmlTransform.Resolver = xmlResolver;

        Uri absoluteUri = xmlResolver.ResolveUri(baseUri, relativeUri);

        if (absoluteUri != null)
        {
            Console.WriteLine(
                "\nResolved the base Uri and relative Uri
 to the following:");
            Console.WriteLine(absoluteUri.ToString());
        }
        else
        {
            Console.WriteLine(
                "Unable to resolve the base Uri and relative
 Uri");
        }
        return absoluteUri;
    }
}
//
// This sample produces the following output:
//
// Xml representation of the current transform: 
// <Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-
// signature" xmlns="http://www.w3.org/2000/09/xmldsig#"
 />
// Result of the GetOutput method call from the current transform: <PRODUCTS>
// <PRODUCT><ID>123</ID><DESCRIPTION>Router</DESCRIPTION></PRODUCT><PRODUCT>
// <ID>456</ID><DESCRIPTION>Keyboard</DESCRIPTION></PRODUCT><PRODUCT><ID>789
// </ID><DESCRIPTION>Monitor</DESCRIPTION></PRODUCT></PRODUCTS>
// Unable to load the following file: ..\\my509.cer
// 
// Xml representation of the current transform: 
// <Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-
// signature" xmlns="http://www.w3.org/2000/09/xmldsig#"
 />
// Result of the GetOutput method call from the current transform: <PRODUCTS>
// <PRODUCT><ID>123</ID><DESCRIPTION>Router</DESCRIPTION></PRODUCT><PRODUCT>
// <ID>456</ID><DESCRIPTION>Keyboard</DESCRIPTION></PRODUCT><PRODUCT><ID>789
// </ID><DESCRIPTION>Monitor</DESCRIPTION></PRODUCT><Signature
 xmlns=
// "http://www.w3.org/2000/09/xmldsig#"><SignedInfo><CanonicalizationMethod
 
// Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"
 />
// <SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"
 />
// <Reference URI=""><Transforms><Transform
 Algorithm="http://www.w3.org/2000
// /09/xmldsig#enveloped-signature" /></Transforms><DigestMethod
 Algorithm=
// "http://www.w3.org/2000/09/xmldsig#sha1" /><DigestValue>KvPW6HUiIUMEDS0YSoT
// gpo2JPbA=</DigestValue></Reference></SignedInfo><SignatureValue>c/njCGDru/a
// WAmWG83I+mWO040xOzxvmNx0b0o8ZyPc9j5VwApdAt103OGBtB1H6EkOvt7Ekw+PVuUo8m5LzLP
// yaTxUDMbb2kZZ5itSkGD4rmMUMUMuzrkAoquJZjxeOydBJ2CMehV2rE3RMPLIwRX176DZVy5JKU
// 6Cb7PR2Rpw=</SignatureValue></Signature></PRODUCTS>
// 
// Resolved the base Uri and relative Uri to the following:
// http://www.contoso.com/xml
// This sample completed successfully; press Enter to exit.
C++
#using <System.dll>
#using <System.Xml.dll>
#using <System.Security.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
using namespace System::Security::Cryptography;
using namespace System::Security::Cryptography::Xml;
using namespace System::Security::Cryptography::X509Certificates;

public ref class EnvelopedSignatureSample
{
private:
    static String^ Certificate =  "..\\..\\my509.cer";

    // Encrypt the text in the specified XmlDocument.
public:
    static void ShowTransformProperties(XmlDocument^
 xmlDoc)
    {
        XmlDsigEnvelopedSignatureTransform^ xmlTransform =
            gcnew XmlDsigEnvelopedSignatureTransform();

        // Ensure the transform is using the proper algorithm.
        xmlTransform->Algorithm =
            SignedXml::XmlDsigEnvelopedSignatureTransformUrl;

        // Retrieve the XML representation of the current transform.
        XmlElement^ xmlInTransform = xmlTransform->GetXml();

        Console::WriteLine("\nXml representation of the current transform: ");
        Console::WriteLine(xmlInTransform->OuterXml);

        // Retrieve the valid input types for the current transform.
        array<Type^>^ validInTypes = xmlTransform->InputTypes;

        // Verify the xmlTransform can accept the XMLDocument as an
        // input type.
        for (int i = 0; i < validInTypes->Length;
 i++)
        {
            if (validInTypes[i] == xmlDoc->GetType())
            {
                // Load the document into the transfrom.
                xmlTransform->LoadInput(xmlDoc);

                bool IncludeComments = true;
                // This transform is created for demonstration purposes.
                XmlDsigEnvelopedSignatureTransform^ secondTransform =
                    gcnew XmlDsigEnvelopedSignatureTransform(IncludeComments);

                String^ classDescription = secondTransform->ToString();

                // This call does not perform as expected.
                // An enveloped signature has no inner XML elements
                secondTransform->LoadInnerXml(xmlDoc->SelectNodes("//."));

                break;
            }
        }

        array<Type^>^ validOutTypes = xmlTransform->OutputTypes;

        for (int i = validOutTypes->Length-1;
 i >= 0; i--)
        {
            if (validOutTypes[i] == System::Xml::XmlDocument::typeid)
            {
                Type^ xmlDocumentType = System::Xml::XmlDocument::typeid;
                XmlDocument^ xmlDocumentOutput = (XmlDocument^)
                    xmlTransform->GetOutput(xmlDocumentType);

                // Display to the console the Xml before and after
                // encryption.
                Console::WriteLine("Result of the GetOutput method call"
 +
                    " from the current transform: " +
                    xmlDocumentOutput->OuterXml);

                break;
            }
            else if (validOutTypes[i] == System::Xml::XmlNodeList::typeid)
            {
                Type^ xmlNodeListType = System::Xml::XmlNodeList::typeid;
                XmlNodeList^ xmlNodes = (XmlNodeList^)
                    xmlTransform->GetOutput(xmlNodeListType);

                // Display to the console the Xml before and after
                // encryption.
                Console::WriteLine("Encoding the following message: " +
                    xmlDoc->InnerText);

                Console::WriteLine("Nodes of the XmlNodeList retrieved "
 +
                    "from GetOutput:");
                for (int j = 0; j < xmlNodes->Count;
 j++)
                {
                    Console::WriteLine("Node " + j +
                        " has the following name: " +
                        xmlNodes->Item(j)->Name +
                        " and the following InnerXml: " +
                        xmlNodes->Item(j)->InnerXml);
                }

                break;
            }
            else
            {
                Object^ outputObject = xmlTransform->GetOutput();
            }
        }
    }

    // Create an XML document describing various products.
public:
    static XmlDocument^ LoadProducts()
    {
        XmlDocument^ xmlDoc = gcnew XmlDocument();

        String^ contosoProducts = "<PRODUCTS>" +
            "<PRODUCT><ID>123</ID><DESCRIPTION>Router"
 + 
            "</DESCRIPTION></PRODUCT>" +
            "<PRODUCT><ID>456</ID><DESCRIPTION>Keyboard"
 +
            "</DESCRIPTION></PRODUCT>" +
            "<PRODUCT><ID>789</ID><DESCRIPTION>Monitor"
 +
            "</DESCRIPTION></PRODUCT>" +
            "</PRODUCTS>";

        xmlDoc->LoadXml(contosoProducts);
        return xmlDoc;
    }

    // Create a signature and add it to the specified document.
public:
    static void SignDocument(XmlDocument^ xmlDoc)
    {
        // Generate a signing key.
        RSACryptoServiceProvider^ key = gcnew RSACryptoServiceProvider();

        // Create a SignedXml object.
        SignedXml^ signedDocument = gcnew SignedXml(xmlDoc);

        // Add the key to the SignedXml document.
        signedDocument->SigningKey = key;

        // Create a reference to be signed.
        Reference^ referenceToBeSigned = gcnew Reference();
        referenceToBeSigned->Uri = "";

        // Add an enveloped transformation to the reference.
        referenceToBeSigned->AddTransform(
            gcnew XmlDsigEnvelopedSignatureTransform());

        // Add the reference to the SignedXml object.
        signedDocument->AddReference(referenceToBeSigned);

        if(File::Exists(Certificate))
        {
            // Create a new KeyInfo object.
            KeyInfo^ info = gcnew KeyInfo();

            // Load the X509 certificate.
            X509Certificate^ certFromFile =
                X509Certificate::CreateFromCertFile(Certificate);

            // Load the certificate into a KeyInfoX509Data object
            // and add it to the KeyInfo object.
            info->AddClause(gcnew KeyInfoX509Data(certFromFile));

            // Add the KeyInfo object to the SignedXml object.
            signedDocument->KeyInfo = info;
        }
        else
        {
            Console::WriteLine("Unable to locate the following file: "
 +
                Certificate);
        }

        // Compute the signature.
        signedDocument->ComputeSignature();

        // Add the signature branch to the original tree so it is enveloped.
        xmlDoc->DocumentElement->AppendChild(signedDocument->GetXml());
    }

    // Resolve the specified base and relative Uri's .
public:
    static Uri^ ResolveUris(Uri^ baseUri, String^ relativeUri)
    {
        XmlUrlResolver^ xmlResolver = gcnew XmlUrlResolver();
        xmlResolver->Credentials =
            System::Net::CredentialCache::DefaultCredentials;

        XmlDsigEnvelopedSignatureTransform^ xmlTransform =
            gcnew XmlDsigEnvelopedSignatureTransform();
        xmlTransform->Resolver = xmlResolver;

        Uri^ absoluteUri = xmlResolver->ResolveUri(baseUri, relativeUri);

        if (absoluteUri != nullptr)
        {
            Console::WriteLine(
                "\nResolved the base Uri and relative Uri
 to the following:");
            Console::WriteLine(absoluteUri->ToString());
        }
        else
        {
            Console::WriteLine(
                "Unable to resolve the base Uri and relative
 Uri");
        }
        return absoluteUri;
    }
};

[STAThread]
int main()
{
    // Encrypt an XML message
    XmlDocument^ productsXml = EnvelopedSignatureSample::LoadProducts();
    EnvelopedSignatureSample::ShowTransformProperties(productsXml);

    EnvelopedSignatureSample::SignDocument(productsXml);
    EnvelopedSignatureSample::ShowTransformProperties(productsXml);

    // Use XmlDsigEnvelopedSignatureTransform to resolve a Uri.
    Uri^ baseUri = gcnew Uri("http://www.contoso.com");
    String^ relativeUri = "xml";
    Uri^ absoluteUri = 
        EnvelopedSignatureSample::ResolveUris(baseUri, relativeUri);

    Console::WriteLine("This sample completed successfully; " +
        "press Enter to exit.");
    Console::ReadLine();
}

//
// This sample produces the following output:
//
// Xml representation of the current transform:
// <Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-
// signature" xmlns="http://www.w3.org/2000/09/xmldsig#"
 />
// Result of the GetOutput method call from the current transform: <PRODUCTS>
// <PRODUCT><ID>123</ID><DESCRIPTION>Router</DESCRIPTION></PRODUCT><PRODUCT>
// <ID>456</ID><DESCRIPTION>Keyboard</DESCRIPTION></PRODUCT><PRODUCT><ID>789
// </ID><DESCRIPTION>Monitor</DESCRIPTION></PRODUCT></PRODUCTS>
// Unable to load the following file: ..\\my509.cer
//
// Xml representation of the current transform:
// <Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-
// signature" xmlns="http://www.w3.org/2000/09/xmldsig#"
 />
// Result of the GetOutput method call from the current transform: <PRODUCTS>
// <PRODUCT><ID>123</ID><DESCRIPTION>Router</DESCRIPTION></PRODUCT><PRODUCT>
// <ID>456</ID><DESCRIPTION>Keyboard</DESCRIPTION></PRODUCT><PRODUCT><ID>789
// </ID><DESCRIPTION>Monitor</DESCRIPTION></PRODUCT><Signature
 xmlns=
// "http://www.w3.org/2000/09/xmldsig#"><SignedInfo><CanonicalizationMethod
// Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"
 />
// <SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"
 />
// <Reference URI=""><Transforms><Transform
 Algorithm="http://www.w3.org/2000
// /09/xmldsig#enveloped-signature" /></Transforms><DigestMethod
 Algorithm=
// "http://www.w3.org/2000/09/xmldsig#sha1" /><DigestValue>KvPW6HUiIUMEDS0YSoT
// gpo2JPbA=</DigestValue></Reference></SignedInfo><SignatureValue>c/njCGDru/a
// WAmWG83I+mWO040xOzxvmNx0b0o8ZyPc9j5VwApdAt103OGBtB1H6EkOvt7Ekw+PVuUo8m5LzLP
// yaTxUDMbb2kZZ5itSkGD4rmMUMUMuzrkAoquJZjxeOydBJ2CMehV2rE3RMPLIwRX176DZVy5JKU
// 6Cb7PR2Rpw=</SignatureValue></Signature></PRODUCTS>
//
// Resolved the base Uri and relative Uri to the following:
// http://www.contoso.com/xml
// This sample completed successfully; press Enter to exit.
J#
import System.*;
import System.IO.*;
import System.Xml.*;
import System.Security.Cryptography.*;
import System.Security.Cryptography.Xml.*;
import System.Security.Cryptography.X509Certificates.*;

class Class1
{
    private static String certificate = "..\\..\\my509.cer";

    /** @attribute STAThread()
     */
    public static void main(String[]
 args)
    {
        // Encrypt an XML message
        XmlDocument productsXml = LoadProducts();
        ShowTransformProperties(productsXml);

        SignDocument(productsXml);
        ShowTransformProperties(productsXml);
        // Use XmlDsigEnvelopedSignatureTransform to resolve a Uri.
        Uri baseUri = new Uri("http://www.contoso.com");
        String relativeUri = "xml";
        Uri absoluteUri = ResolveUris(baseUri, relativeUri);

        Console.WriteLine("This sample completed successfully; " 
            + "press Enter to exit.");
        Console.ReadLine();
    } //main

    // Encrypt the text in the specified XmlDocument.
    private static void
 ShowTransformProperties(XmlDocument xmlDoc)
    {
        XmlDsigEnvelopedSignatureTransform xmlTransform 
            = new XmlDsigEnvelopedSignatureTransform();

        // Ensure the transform is using the proper algorithm.
        xmlTransform.set_Algorithm(
            SignedXml.XmlDsigEnvelopedSignatureTransformUrl);

        // Retrieve the XML representation of the current transform.
        XmlElement xmlInTransform = xmlTransform.GetXml();

        Console.WriteLine("\nXml representation of the current transform: ");
        Console.WriteLine(xmlInTransform.get_OuterXml());
        // Retrieve the valid input types for the current transform.
        Type validInTypes[] = xmlTransform.get_InputTypes();

        // Verify the xmlTransform can accept the XMLDocument as an
        // input type.
        for (int i = 0; i < validInTypes.get_Length();
 i++) {
            if (validInTypes.get_Item(i).Equals(xmlDoc.GetType()))
 {
                // Load the document into the transfrom.
                xmlTransform.LoadInput(xmlDoc);

                boolean includeComments = true;
                // This transform is created for demonstration purposes.
                XmlDsigEnvelopedSignatureTransform secondTransform 
                    = new XmlDsigEnvelopedSignatureTransform(includeComments);

                String classDescription = secondTransform.ToString();

                // This call does not perform as expected.
                // An enveloped signature has no inner XML elements
                secondTransform.LoadInnerXml(xmlDoc.SelectNodes("//."));
                break;
            }
        }
        Type validOutTypes[] = xmlTransform.get_OutputTypes();
        for (int i = validOutTypes.get_Length()
 - 1; i >= 0; i--) {
            if (validOutTypes.get_Item(i).Equals(System.Xml.
                XmlDocument.class.ToType())) {
                try {
                    Type xmlDocumentType = System.Xml.XmlDocument.
                        class.ToType();
                    XmlDocument xmlDocumentOutput = (XmlDocument)xmlTransform.
                        GetOutput(xmlDocumentType);

                    // Display to the console the Xml before and after
                    // encryption.
                    Console.WriteLine("Result of the GetOutput method call"
 
                        + " from the current transform: " 
                        + xmlDocumentOutput.get_OuterXml());
                }
                catch (System.Exception ex) {
                    Console.WriteLine("Unexpected exception caught: " 
                        + ex.ToString());
                }
                break;
            }
            else {
                if (validOutTypes.get_Item(i).Equals(System.Xml.
                    XmlNodeList.class.ToType())) {
                    try {
                        Type xmlNodeListType = System.Xml.
                            XmlNodeList.class.ToType();
                        XmlNodeList xmlNodes = (XmlNodeList)xmlTransform.
                            GetOutput(xmlNodeListType);
                        // Display to the console the Xml before and
 after
                        // encryption.
                        Console.WriteLine("Encoding the following message: "
 
                            + xmlDoc.get_InnerText());

                        Console.WriteLine("Nodes of the XmlNodeList retrieved
 " 
                            + "from GetOutput:");
                        for (int j = 0; j <
 xmlNodes.get_Count(); j++) {
                            Console.WriteLine("Node " + j 
                                + " has the following name: " 
                                + xmlNodes.Item(j).get_Name() 
                                + " and the following InnerXml: " 
                                + xmlNodes.Item(j).get_InnerXml());
                        }
                    }
                    catch (System.Exception ex) {
                        Console.WriteLine("Unexpected exception caught: "
 
                            + ex.ToString());
                    }
                    break;
                }
                else {
                    Object outputObject = xmlTransform.GetOutput();
                } 
            }
        }
    } //ShowTransformProperties

    // Create an XML document describing various products.
    private static XmlDocument LoadProducts()
    {
        XmlDocument xmlDoc = new XmlDocument();

        String contosoProducts = "<PRODUCTS>";
        contosoProducts += "<PRODUCT><ID>123</ID>";
        contosoProducts += "<DESCRIPTION>Router</DESCRIPTION></PRODUCT>";
        contosoProducts += "<PRODUCT><ID>456</ID>";
        contosoProducts += "<DESCRIPTION>Keyboard</DESCRIPTION></PRODUCT>";
        contosoProducts += "<PRODUCT><ID>789</ID>";
        contosoProducts += "<DESCRIPTION>Monitor</DESCRIPTION></PRODUCT>";
        contosoProducts += "</PRODUCTS>";

        xmlDoc.LoadXml(contosoProducts);
        return xmlDoc;
    } //LoadProducts

    // Create a signature and add it to the specified document.
    private static void
 SignDocument(XmlDocument xmlDoc)
    {
        // Generate a signing key.
        RSACryptoServiceProvider key = new RSACryptoServiceProvider();
        // Create a SignedXml object.
        SignedXml signedXml = new SignedXml(xmlDoc);
        // Add the key to the SignedXml document. 
        signedXml.set_SigningKey(key);
        // Create a reference to be signed.
        Reference reference = new Reference();
        reference.set_Uri("");
        // Add an enveloped transformation to the reference.
        reference.AddTransform(new XmlDsigEnvelopedSignatureTransform());
        // Add the reference to the SignedXml object.
        signedXml.AddReference(reference);

        try {
            // Create a new KeyInfo object.
            KeyInfo keyInfo = new KeyInfo();
            // Load the X509 certificate.
            X509Certificate msCert = X509Certificate.
                CreateFromCertFile(certificate);
            // Load the certificate into a KeyInfoX509Data object
            // and add it to the KeyInfo object.
            keyInfo.AddClause(new KeyInfoX509Data(msCert));
            // Add the KeyInfo object to the SignedXml object.
            signedXml.set_KeyInfo(keyInfo);
        }
        catch (FileNotFoundException ex) {
            Console.WriteLine("Unable to locate the following file: " 
                + certificate);
        }
        // Compute the signature.
        signedXml.ComputeSignature();
        // Add the signature branch to the original tree so it is enveloped.
        xmlDoc.get_DocumentElement().AppendChild(signedXml.GetXml());
    } //SignDocument

    // Resolve the specified base and relative Uri's .
    private static Uri ResolveUris(Uri baseUri,
 String relativeUri)
    {
        XmlUrlResolver xmlResolver = new XmlUrlResolver();
        xmlResolver.set_Credentials(System.Net.CredentialCache.
            get_DefaultCredentials());
        XmlDsigEnvelopedSignatureTransform xmlTransform 
            = new XmlDsigEnvelopedSignatureTransform();
        xmlTransform.set_Resolver(xmlResolver);

        Uri absoluteUri = xmlResolver.ResolveUri(baseUri, relativeUri);

        if (absoluteUri != null) {
            Console.WriteLine("\nResolved the base Uri and
 relative "
                + "Uri to the following:");
            Console.WriteLine(absoluteUri.ToString());
        }
        else {
            Console.WriteLine("Unable to resolve the base
 "
                + "Uri and relative Uri");
        }
        return absoluteUri;
    } //ResolveUris
} //Class1
//
// This sample produces the following output:
//
// Xml representation of the current transform: 
// <Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-
// signature" xmlns="http://www.w3.org/2000/09/xmldsig#"
 />
// Result of the GetOutput method call from the current transform: <PRODUCTS>
// <PRODUCT><ID>123</ID><DESCRIPTION>Router</DESCRIPTION></PRODUCT><PRODUCT>
// <ID>456</ID><DESCRIPTION>Keyboard</DESCRIPTION></PRODUCT><PRODUCT><ID>789
// </ID><DESCRIPTION>Monitor</DESCRIPTION></PRODUCT></PRODUCTS>
// Unable to load the following file: ..\\my509.cer
// 
// Xml representation of the current transform: 
// <Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-
// signature" xmlns="http://www.w3.org/2000/09/xmldsig#"
 />
// Result of the GetOutput method call from the current transform: <PRODUCTS>
// <PRODUCT><ID>123</ID><DESCRIPTION>Router</DESCRIPTION></PRODUCT><PRODUCT>
// <ID>456</ID><DESCRIPTION>Keyboard</DESCRIPTION></PRODUCT><PRODUCT><ID>789
// </ID><DESCRIPTION>Monitor</DESCRIPTION></PRODUCT><Signature
 xmlns=
// "http://www.w3.org/2000/09/xmldsig#"><SignedInfo><CanonicalizationMethod
 
// Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"
 />
// <SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"
 />
// <Reference URI=""><Transforms><Transform
 Algorithm="http://www.w3.org/2000
// /09/xmldsig#enveloped-signature" /></Transforms><DigestMethod
 Algorithm=
// "http://www.w3.org/2000/09/xmldsig#sha1" /><DigestValue>KvPW6HUiIUMEDS0YSoT
// gpo2JPbA=</DigestValue></Reference></SignedInfo><SignatureValue>c/njCGDru/a
// WAmWG83I+mWO040xOzxvmNx0b0o8ZyPc9j5VwApdAt103OGBtB1H6EkOvt7Ekw+PVuUo8m5LzLP
// yaTxUDMbb2kZZ5itSkGD4rmMUMUMuzrkAoquJZjxeOydBJ2CMehV2rE3RMPLIwRX176DZVy5JKU
// 6Cb7PR2Rpw=</SignatureValue></Signature></PRODUCTS>
// 
// Resolved the base Uri and relative Uri to the following:
// http://www.contoso.com/xml
// This sample completed successfully; press Enter to exit.
継承階層継承階層
System.Object
   System.Security.Cryptography.Xml.Transform
    System.Security.Cryptography.Xml.XmlDsigEnvelopedSignatureTransform
スレッド セーフスレッド セーフ
この型の public static (Visual Basic では Shared) メンバはすべて、スレッド セーフです。インスタンス メンバの場合は、スレッド セーフであるとは限りません。
プラットフォームプラットフォーム

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報バージョン情報
.NET Framework
サポート対象 : 2.0、1.1、1.0
参照参照
関連項目
XmlDsigEnvelopedSignatureTransform メンバ
System.Security.Cryptography.Xml 名前空間

XmlDsigEnvelopedSignatureTransform コンストラクタ ()

XmlDsigEnvelopedSignatureTransform クラスの新しいインスタンスを初期化します。

名前空間: System.Security.Cryptography.Xml
アセンブリ: System.Security (system.security.dll 内)
構文構文

Visual Basic (宣言)
Public Sub New
Visual Basic (使用法)
Dim instance As New XmlDsigEnvelopedSignatureTransform
C#
public XmlDsigEnvelopedSignatureTransform ()
C++
public:
XmlDsigEnvelopedSignatureTransform ()
J#
public XmlDsigEnvelopedSignatureTransform ()
JScript
public function XmlDsigEnvelopedSignatureTransform
 ()
使用例使用例

XmlDsigEnvelopedSignatureTransform クラスのメンバを使用する方法を次のコード例に示します。

Visual Basic
' Sign an XML file and save the signature in a new file.
Public Shared Sub SignXmlFile(FileName
 As String, SignedFileName As
 String, Key As RSA)
   ' Create a new XML document.
   Dim doc As New XmlDocument()
   
   ' Format the document to ignore white spaces.
   doc.PreserveWhitespace = False
   
   ' Load the passed XML file using it's name.
   doc.Load(New XmlTextReader(FileName))
   
   ' Create a SignedXml object.
   Dim signedXml As New
 SignedXml(doc)
   
   ' Add the key to the SignedXml document. 
   signedXml.SigningKey = Key
   
   ' Create a reference to be signed.
   Dim reference As New
 Reference()
   reference.Uri = ""
   
   ' Add an enveloped transformation to the reference.
   Dim env As New XmlDsigEnvelopedSignatureTransform()
   reference.AddTransform(env)
   
   ' Add the reference to the SignedXml object.
   signedXml.AddReference(reference)
   
   
   ' Add an RSAKeyValue KeyInfo (optional; helps recipient find key
 to validate).
   Dim keyInfo As New KeyInfo()
   keyInfo.AddClause(New RSAKeyValue(CType(Key, RSA)))
   signedXml.KeyInfo = keyInfo
   
   ' Compute the signature.
   signedXml.ComputeSignature()
   
   ' Get the XML representation of the signature and save
   ' it to an XmlElement object.
   Dim xmlDigitalSignature As XmlElement =
 signedXml.GetXml()
   
   ' Append the element to the XML document.
   doc.DocumentElement.AppendChild(doc.ImportNode(xmlDigitalSignature, True))
   
   
   If TypeOf doc.FirstChild Is
 XmlDeclaration Then
      doc.RemoveChild(doc.FirstChild)
   End If
   
   ' Save the signed XML document to a file specified
   ' using the passed string.
   Dim xmltw As New XmlTextWriter(SignedFileName,
 New UTF8Encoding(False))
   doc.WriteTo(xmltw)
   xmltw.Close()
End Sub
C#
// Sign an XML file and save the signature in a new file.
public static void SignXmlFile(string
 FileName, string SignedFileName, RSA Key)
{
    // Create a new XML document.
    XmlDocument doc = new XmlDocument();

    // Format the document to ignore white spaces.
    doc.PreserveWhitespace = false;

    // Load the passed XML file using it's name.
    doc.Load(new XmlTextReader(FileName));

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

    // Add the key to the SignedXml document. 
    signedXml.SigningKey = Key;

    // Create a reference to be signed.
    Reference reference = new Reference();
    reference.Uri = "";

    // Add an enveloped transformation to the reference.
    XmlDsigEnvelopedSignatureTransform env = new XmlDsigEnvelopedSignatureTransform();
    reference.AddTransform(env);

    // Add the reference to the SignedXml object.
    signedXml.AddReference(reference);

    
    // Add an RSAKeyValue KeyInfo (optional; helps recipient find key
 to validate).
    KeyInfo keyInfo = new KeyInfo();
    keyInfo.AddClause(new RSAKeyValue((RSA)Key));
    signedXml.KeyInfo = keyInfo;

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

    // Get the XML representation of the signature and save
    // it to an XmlElement object.
    XmlElement xmlDigitalSignature = signedXml.GetXml();

    // Append the element to the XML document.
    doc.DocumentElement.AppendChild(doc.ImportNode(xmlDigitalSignature, true));
    
    
    if (doc.FirstChild is XmlDeclaration)  
    {
        doc.RemoveChild(doc.FirstChild);
    }

    // Save the signed XML document to a file specified
    // using the passed string.
    XmlTextWriter xmltw = new XmlTextWriter(SignedFileName, new
 UTF8Encoding(false));
    doc.WriteTo(xmltw);
    xmltw.Close();
}
C++
// Sign an XML file and save the signature in a new file.
void SignXmlFile( String^ FileName, String^ SignedFileName, RSA^
 Key )
{
   
   // Create a new XML document.
   XmlDocument^ doc = gcnew XmlDocument;
   
   // Format the document to ignore white spaces.
   doc->PreserveWhitespace = false;
   
   // Load the passed XML file using its name.
   doc->Load( gcnew XmlTextReader( FileName ) );
   
   // Create a SignedXml object.
   SignedXml^ signedXml = gcnew SignedXml( doc );
   
   // Add the key to the SignedXml document. 
   signedXml->SigningKey = Key;
   
   // Create a reference to be signed.
   Reference^ reference = gcnew Reference;
   reference->Uri = "";
   
   // Add an enveloped transformation to the reference.
   XmlDsigEnvelopedSignatureTransform^ env = gcnew XmlDsigEnvelopedSignatureTransform;
   reference->AddTransform( env );
   
   // Add the reference to the SignedXml object.
   signedXml->AddReference( reference );
   
   // Add an RSAKeyValue KeyInfo (optional; helps recipient find key
 to validate).
   KeyInfo^ keyInfo = gcnew KeyInfo;
   keyInfo->AddClause( gcnew RSAKeyValue( safe_cast<RSA^>(Key) ) );
   signedXml->KeyInfo = keyInfo;
   
   // Compute the signature.
   signedXml->ComputeSignature();
   
   // Get the XML representation of the signature and save
   // it to an XmlElement object.
   XmlElement^ xmlDigitalSignature = signedXml->GetXml();
   
   // Append the element to the XML document.
   doc->DocumentElement->AppendChild( doc->ImportNode( xmlDigitalSignature,
 true ) );
   if ( (doc->FirstChild)->GetType() == XmlDeclaration::typeid
 )
   {
      doc->RemoveChild( doc->FirstChild );
   }

   
   // Save the signed XML document to a file specified
   // using the passed string.
   XmlTextWriter^ xmltw = gcnew XmlTextWriter( SignedFileName,gcnew UTF8Encoding(
 false ) );
   doc->WriteTo( xmltw );
   xmltw->Close();
}
J#
// Sign an XML file and save the signature in a new file.
public static void SignXmlFile(String
 fileName, String signedFileName, 
    RSA key)
{
    // Create a new XML document.
    XmlDocument doc = new XmlDocument();

    // Format the document to ignore white spaces.
    doc.set_PreserveWhitespace(false);

    // Load the passed XML file using it's name.
    doc.Load(new XmlTextReader(fileName));

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

    // Add the key to the SignedXml document. 
    signedXml.set_SigningKey(key);

    // Create a reference to be signed.
    Reference reference = new Reference();
    reference.set_Uri("");

    // Add a transformation to the reference.
    Transform trns = new XmlDsigC14NTransform();

    reference.AddTransform(trns);

    // Add an enveloped transformation to the reference.
    XmlDsigEnvelopedSignatureTransform env = 
        new XmlDsigEnvelopedSignatureTransform();
    reference.AddTransform(env);

    // Add the reference to the SignedXml object.
    signedXml.AddReference(reference);

    // Add an RSAKeyValue KeyInfo (optional; helps recipient 
    // find key to validate).
    KeyInfo keyInfo = new KeyInfo();
    keyInfo.AddClause(new RSAKeyValue(((RSA)(key))));
    signedXml.set_KeyInfo(keyInfo);

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

    // Get the XML representation of the signature and save
    // it to an XmlElement object.
    XmlElement xmlDigitalSignature = signedXml.GetXml();

    // Append the element to the XML document.
    doc.get_DocumentElement().AppendChild(doc.ImportNode(
        xmlDigitalSignature, true));
    if (doc.get_FirstChild() instanceof XmlDeclaration) {
        doc.RemoveChild(doc.get_FirstChild());
    }

    // Save the signed XML document to a file specified
    // using the passed string.
    XmlTextWriter xmlTW = new XmlTextWriter(signedFileName, 
        new UTF8Encoding(false));
    doc.WriteTo(xmlTW);
    xmlTW.Close();
} //SignXmlFile
プラットフォームプラットフォーム

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報バージョン情報
.NET Framework
サポート対象 : 2.0、1.1、1.0
参照参照
関連項目
XmlDsigEnvelopedSignatureTransform クラス
XmlDsigEnvelopedSignatureTransform メンバ
System.Security.Cryptography.Xml 名前空間

XmlDsigEnvelopedSignatureTransform コンストラクタ

XmlDsigEnvelopedSignatureTransform クラスの新しいインスタンスを初期化します。
オーバーロードの一覧オーバーロードの一覧

名前 説明
XmlDsigEnvelopedSignatureTransform () XmlDsigEnvelopedSignatureTransform クラスの新しいインスタンスを初期化します。
XmlDsigEnvelopedSignatureTransform (Boolean) コメントが指定されている場合は、そのコメントを持つ XmlDsigEnvelopedSignatureTransform クラスの新しいインスタンスを初期化します。
参照参照

関連項目

XmlDsigEnvelopedSignatureTransform クラス
XmlDsigEnvelopedSignatureTransform メンバ
System.Security.Cryptography.Xml 名前空間

XmlDsigEnvelopedSignatureTransform コンストラクタ (Boolean)

このコンストラクタは、.NET Framework インフラストラクチャをサポートします。独自に作成したコードから直接使用するためのものではありません。

コメントが指定されている場合は、そのコメントを持つ XmlDsigEnvelopedSignatureTransform クラスの新しいインスタンスを初期化します。

名前空間: System.Security.Cryptography.Xml
アセンブリ: System.Security (system.security.dll 内)
構文構文

Visual Basic (宣言)
Public Sub New ( _
    includeComments As Boolean _
)
Visual Basic (使用法)
Dim includeComments As Boolean

Dim instance As New XmlDsigEnvelopedSignatureTransform(includeComments)
C#
public XmlDsigEnvelopedSignatureTransform (
    bool includeComments
)
C++
public:
XmlDsigEnvelopedSignatureTransform (
    bool includeComments
)
J#
public XmlDsigEnvelopedSignatureTransform (
    boolean includeComments
)
JScript
public function XmlDsigEnvelopedSignatureTransform
 (
    includeComments : boolean
)

パラメータ

includeComments

コメントを含める場合は true。それ以外の場合は false。

使用例使用例

XmlDsigEnvelopedSignatureTransform コンストラクタの Boolean 値に true を指定してコメントを追加する方法を次のコード例に示します。このコード例は、XmlDsigEnvelopedSignatureTransform クラスのトピックで取り上げているコード例の一部分です。

Visual Basic
Dim IncludeComments As Boolean
 = True
' This transform is created for demonstration purposes.
Dim secondTransform As _
    New XmlDsigEnvelopedSignatureTransform(IncludeComments)
C#
bool IncludeComments = true;
// This transform is created for demonstration purposes.
XmlDsigEnvelopedSignatureTransform secondTransform =
    new XmlDsigEnvelopedSignatureTransform(IncludeComments);
C++
bool IncludeComments = true;
// This transform is created for demonstration purposes.
XmlDsigEnvelopedSignatureTransform^ secondTransform =
    gcnew XmlDsigEnvelopedSignatureTransform(IncludeComments);
J#
boolean includeComments = true;
// This transform is created for demonstration purposes.
XmlDsigEnvelopedSignatureTransform secondTransform 
    = new XmlDsigEnvelopedSignatureTransform(includeComments);
プラットフォームプラットフォーム

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報バージョン情報
.NET Framework
サポート対象 : 2.0、1.1、1.0
参照参照
関連項目
XmlDsigEnvelopedSignatureTransform クラス
XmlDsigEnvelopedSignatureTransform メンバ
System.Security.Cryptography.Xml 名前空間

XmlDsigEnvelopedSignatureTransform プロパティ


パブリック プロパティパブリック プロパティ

  名前 説明
パブリック プロパティ Algorithm  現在の変換で実行されているアルゴリズムを識別する URI (Uniform Resource Identifier) を取得または設定します。 ( Transform から継承されます。)
パブリック プロパティ Context  現在の Transform オブジェクトが実行されているドキュメント コンテキストを表す XmlElement オブジェクトを取得または設定します。 ( Transform から継承されます。)
パブリック プロパティ InputTypes オーバーライドされます。 現在の XmlDsigEnvelopedSignatureTransform オブジェクトの LoadInput メソッドに入力できる型の配列を取得します。
パブリック プロパティ OutputTypes オーバーライドされます。 現在の XmlDsigEnvelopedSignatureTransform オブジェクト の GetOutput メソッドから出力できる型の配列を取得します。
パブリック プロパティ PropagatedNamespaces  署名に反映させる名前空間を格納する Hashtable オブジェクトを取得または設定します。 ( Transform から継承されます。)
パブリック プロパティ Resolver  現在の XmlResolver オブジェクトを設定します。 ( Transform から継承されます。)
参照参照

関連項目

XmlDsigEnvelopedSignatureTransform クラス
System.Security.Cryptography.Xml 名前空間

XmlDsigEnvelopedSignatureTransform メソッド


パブリック メソッドパブリック メソッド

( プロテクト メソッド も参照)
  名前 説明
パブリック メソッド Equals  オーバーロードされます。 2 つの Object インスタンスが等しいかどうかを判断します。 ( Object から継承されます。)
パブリック メソッド GetDigestedOutput  派生クラスでオーバーライドされた場合は、Transform オブジェクトに関連付けられているダイジェストを返します。 ( Transform から継承されます。)
パブリック メソッド GetHashCode  特定の型のハッシュ関数として機能します。GetHashCode は、ハッシュ アルゴリズムや、ハッシュ テーブルのようなデータ構造での使用に適しています。 ( Object から継承されます。)
パブリック メソッド GetOutput オーバーロードされます。 オーバーライドされます。 現在の XmlDsigEnvelopedSignatureTransform オブジェクトの出力を返します。
パブリック メソッド GetType  現在のインスタンスの Type を取得します。 ( Object から継承されます。)
パブリック メソッド GetXml  現在の Transform オブジェクトの XML 表現を返します。 ( Transform から継承されます。)
パブリック メソッド LoadInnerXml オーバーライドされます。 指定した XmlNodeList を <Transform> 要素の変換に固有な内容として解析し、現在の XmlDsigEnvelopedSignatureTransform オブジェクトの内部状態を <Transform> 要素に一致するように設定します。
パブリック メソッド LoadInput オーバーライドされます。 指定した入力を現在の XmlDsigEnvelopedSignatureTransform オブジェクトに読み込みます。
パブリック メソッド ReferenceEquals  指定した複数の Object インスタンスが同一かどうかを判断します。 ( Object から継承されます。)
パブリック メソッド ToString  現在の Object を表す String を返します。 ( Object から継承されます。)
プロテクト メソッドプロテクト メソッド
  名前 説明
プロテクト メソッド Finalize  Object がガベージ コレクションにより収集される前に、その Object がリソースを解放し、その他のクリーンアップ操作を実行できるようにします。 ( Object から継承されます。)
プロテクト メソッド GetInnerXml オーバーライドされます。 XMLDSIG <Transform> 要素のサブ要素として含めるのに適した、XmlDsigEnvelopedSignatureTransform オブジェクトのパラメータの XML 表現を返します。
プロテクト メソッド MemberwiseClone  現在の Object の簡易コピーを作成します。 ( Object から継承されます。)
参照参照

関連項目

XmlDsigEnvelopedSignatureTransform クラス
System.Security.Cryptography.Xml 名前空間

XmlDsigEnvelopedSignatureTransform メンバ

W3C によって定義された、XML デジタル署名のエンベロープ署名変換を表します。

XmlDsigEnvelopedSignatureTransform データ型で公開されるメンバを以下の表に示します。


パブリック コンストラクタパブリック コンストラクタ
  名前 説明
パブリック メソッド XmlDsigEnvelopedSignatureTransform オーバーロードされます。 XmlDsigEnvelopedSignatureTransform クラスの新しいインスタンスを初期化します。
パブリック プロパティパブリック プロパティ
  名前 説明
パブリック プロパティ Algorithm  現在の変換で実行されているアルゴリズムを識別する URI (Uniform Resource Identifier) を取得または設定します。(Transform から継承されます。)
パブリック プロパティ Context  現在の Transform オブジェクトが実行されているドキュメント コンテキストを表す XmlElement オブジェクトを取得または設定します。 (Transform から継承されます。)
パブリック プロパティ InputTypes オーバーライドされます。 現在の XmlDsigEnvelopedSignatureTransform オブジェクトの LoadInput メソッドに入力できる型の配列を取得します。
パブリック プロパティ OutputTypes オーバーライドされます。 現在の XmlDsigEnvelopedSignatureTransform オブジェクト の GetOutput メソッドから出力できる型の配列を取得します。
パブリック プロパティ PropagatedNamespaces  署名に反映させる名前空間を格納する Hashtable オブジェクトを取得または設定します。 (Transform から継承されます。)
パブリック プロパティ Resolver  現在の XmlResolver オブジェクトを設定します。(Transform から継承されます。)
パブリック メソッドパブリック メソッド
( プロテクト メソッド も参照)
  名前 説明
パブリック メソッド Equals  オーバーロードされます。 2 つの Object インスタンスが等しいかどうかを判断します。 (Object から継承されます。)
パブリック メソッド GetDigestedOutput  派生クラスでオーバーライドされた場合は、Transform オブジェクトに関連付けられているダイジェストを返します。 (Transform から継承されます。)
パブリック メソッド GetHashCode  特定の型のハッシュ関数として機能します。GetHashCode は、ハッシュ アルゴリズムや、ハッシュ テーブルのようなデータ構造での使用に適しています。 (Object から継承されます。)
パブリック メソッド GetOutput オーバーロードされます。 オーバーライドされます。 現在の XmlDsigEnvelopedSignatureTransform オブジェクトの出力を返します。
パブリック メソッド GetType  現在のインスタンスの Type を取得します。 (Object から継承されます。)
パブリック メソッド GetXml  現在の Transform オブジェクトの XML 表現を返します。 (Transform から継承されます。)
パブリック メソッド LoadInnerXml オーバーライドされます。 指定した XmlNodeList を <Transform> 要素の変換に固有な内容として解析し、現在の XmlDsigEnvelopedSignatureTransform オブジェクトの内部状態を <Transform> 要素に一致するように設定します。
パブリック メソッド LoadInput オーバーライドされます。 指定した入力を現在の XmlDsigEnvelopedSignatureTransform オブジェクトに読み込みます。
パブリック メソッド ReferenceEquals  指定した複数の Object インスタンスが同一かどうかを判断します。 (Object から継承されます。)
パブリック メソッド ToString  現在の Object を表す String を返します。 (Object から継承されます。)
プロテクト メソッドプロテクト メソッド
  名前 説明
プロテクト メソッド Finalize  Object がガベージ コレクションにより収集される前に、その Object がリソースを解放し、その他のクリーンアップ操作を実行できるようにします。 (Object から継承されます。)
プロテクト メソッド GetInnerXml オーバーライドされます。 XMLDSIG <Transform> 要素のサブ要素として含めるのに適した、XmlDsigEnvelopedSignatureTransform オブジェクトのパラメータの XML 表現を返します。
プロテクト メソッド MemberwiseClone  現在の Object の簡易コピーを作成します。 (Object から継承されます。)
参照参照

関連項目

XmlDsigEnvelopedSignatureTransform クラス
System.Security.Cryptography.Xml 名前空間

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「XmlDsigEnvelopedSignatureTransform」の関連用語

1
XmlDsigEnvelopedSignatureTransform.GetOutput メソッド
.NET Framework クラス ライブラリ リファレンス
100% |||||

2
XmlDecryptionTransform.GetOutput メソッド
.NET Framework クラス ライブラリ リファレンス
96% |||||

3
XmlDsigEnvelopedSignatureTransform.InputTypes プロパティ
.NET Framework クラス ライブラリ リファレンス
70% |||||

4
XmlDsigEnvelopedSignatureTransform.LoadInnerXml メソッド
.NET Framework クラス ライブラリ リファレンス
70% |||||

5
XmlDsigEnvelopedSignatureTransform.OutputTypes プロパティ
.NET Framework クラス ライブラリ リファレンス
70% |||||

6
XmlDsigEnvelopedSignatureTransform プロパティ
.NET Framework クラス ライブラリ リファレンス
54% |||||

7
XmlDsigEnvelopedSignatureTransform.LoadInput メソッド
.NET Framework クラス ライブラリ リファレンス
54% |||||

8
XmlDsigEnvelopedSignatureTransform コンストラクタ ()
.NET Framework クラス ライブラリ リファレンス
52% |||||

9
XmlDsigEnvelopedSignatureTransform.GetInnerXml メソッド
.NET Framework クラス ライブラリ リファレンス
52% |||||

10
XmlDsigEnvelopedSignatureTransform メンバ
.NET Framework クラス ライブラリ リファレンス
52% |||||

XmlDsigEnvelopedSignatureTransformのお隣キーワード

XmlDsigC14NTransform.OutputTypes プロパティ

XmlDsigC14NWithCommentsTransform クラス

XmlDsigC14NWithCommentsTransform コンストラクタ

XmlDsigC14NWithCommentsTransform プロパティ

XmlDsigC14NWithCommentsTransform メソッド

XmlDsigC14NWithCommentsTransform メンバ

XmlDsigEnvelopedSignatureTransform

XmlDsigEnvelopedSignatureTransform クラス

XmlDsigEnvelopedSignatureTransform コンストラクタ

XmlDsigEnvelopedSignatureTransform プロパティ

XmlDsigEnvelopedSignatureTransform メソッド

XmlDsigEnvelopedSignatureTransform メンバ

XmlDsigEnvelopedSignatureTransform.GetInnerXml メソッド

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