SignedXml.XmlDsigEnvelopedSignatureTransformUrl Pole
Definicja
Ważne
Niektóre informacje odnoszą się do produktu w wersji wstępnej, który może zostać znacząco zmodyfikowany przed wydaniem. Firma Microsoft nie udziela żadnych gwarancji, jawnych lub domniemanych, w odniesieniu do informacji podanych w tym miejscu.
Reprezentuje identyfikator URI (Uniform Resource Identifier) na potrzeby przekształcenia sygnatury kopertowej. To pole jest stałe.
public: System::String ^ XmlDsigEnvelopedSignatureTransformUrl;public const string XmlDsigEnvelopedSignatureTransformUrl;val mutable XmlDsigEnvelopedSignatureTransformUrl : stringPublic Const XmlDsigEnvelopedSignatureTransformUrl As String Wartość pola
Przykłady
W poniższym przykładzie kodu pokazano, jak używać składowych XmlDsigEnvelopedSignatureTransform klasy.
#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.
RSA^ key = RSA::Create();
// 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.
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.
RSA Key = RSA.Create();
// 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.
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 RSA = RSA.Create()
' 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.
Uwagi
Wartość XmlDsigEnvelopedSignatureTransformUrl pola to http://www.w3.org/2000/09/xmldsig#enveloped-signature.
Użyj tego pola, aby wygodnie podać wartość do jednego z atrybutów identyfikatora URI elementu używanego dla xmlDSIG.
Klasa XmlDsigEnvelopedSignatureTransform implementuje transformację opisaną XmlDsigEnvelopedSignatureTransformUrl przez pole.
Aby uzyskać więcej informacji, zobacz schemat World Wide Web Consortium (W3C).
Dotyczy
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