EncryptedXml.Encrypt Yöntem
Tanım
Önemli
Bazı bilgiler ürünün ön sürümüyle ilgilidir ve sürüm öncesinde önemli değişiklikler yapılmış olabilir. Burada verilen bilgilerle ilgili olarak Microsoft açık veya zımni hiçbir garanti vermez.
Anahtar eşleme tablosunda belirtilen sertifikayı veya anahtarı kullanarak öğenin dış XML'sini şifreler.
Aşırı Yüklemeler
| Encrypt(XmlElement, X509Certificate2) |
Belirtilen X.509 sertifikasını kullanarak öğenin dış XML'sini şifreler. |
| Encrypt(XmlElement, String) |
Bir öğenin dış XML'sini anahtar eşleme tablosunda belirtilen anahtarı kullanarak şifreler. |
Örnekler
Aşağıdaki kod örneğinde, bir XML belgesinin simetrik anahtar kullanılarak nasıl şifrelenmesi gösterilmektedir.
#using <System.Security.dll>
#using <System.dll>
#using <System.Xml.dll>
using namespace System;
using namespace System::Xml;
using namespace System::Security::Cryptography;
using namespace System::Security::Cryptography::Xml;
static void Encrypt( XmlDocument^ Doc, String^ ElementToEncrypt, SymmetricAlgorithm^ Alg, String^ KeyName )
{
// Check the arguments.
if ( Doc == nullptr )
throw gcnew ArgumentNullException( L"Doc" );
if ( ElementToEncrypt == nullptr )
throw gcnew ArgumentNullException( L"ElementToEncrypt" );
if ( Alg == nullptr )
throw gcnew ArgumentNullException( L"Alg" );
////////////////////////////////////////////////
// Find the specified element in the XmlDocument
// object and create a new XmlElemnt object.
////////////////////////////////////////////////
XmlElement^ elementToEncrypt = dynamic_cast<XmlElement^>(Doc->GetElementsByTagName( ElementToEncrypt )->Item( 0 ));
// Throw an XmlException if the element was not found.
if ( elementToEncrypt == nullptr )
{
throw gcnew XmlException( L"The specified element was not found" );
}
//////////////////////////////////////////////////
// Create a new instance of the EncryptedXml class
// and use it to encrypt the XmlElement with the
// symmetric key.
//////////////////////////////////////////////////
EncryptedXml^ eXml = gcnew EncryptedXml;
// Add the key mapping.
eXml->AddKeyNameMapping( KeyName, Alg );
// Encrypt the element.
EncryptedData^ edElement = eXml->Encrypt( elementToEncrypt, KeyName );
////////////////////////////////////////////////////
// Replace the element from the original XmlDocument
// object with the EncryptedData element.
////////////////////////////////////////////////////
EncryptedXml::ReplaceElement( elementToEncrypt, edElement, false );
}
static void Decrypt( XmlDocument^ Doc, SymmetricAlgorithm^ Alg, String^ KeyName )
{
// Check the arguments.
if ( Doc == nullptr )
throw gcnew ArgumentNullException( L"Doc" );
if ( Alg == nullptr )
throw gcnew ArgumentNullException( L"Alg" );
if ( KeyName == nullptr )
throw gcnew ArgumentNullException( L"KeyName" );
// Create a new EncryptedXml object.
EncryptedXml^ exml = gcnew EncryptedXml( Doc );
// Add the key name mapping.
exml->AddKeyNameMapping( KeyName, Alg );
// Decrypt the XML document.
exml->DecryptDocument();
}
int main()
{
// Create an XmlDocument object.
XmlDocument^ xmlDoc = gcnew XmlDocument;
// Load an XML file into the XmlDocument object.
try
{
xmlDoc->PreserveWhitespace = true;
xmlDoc->Load( L"test.xml" );
}
catch ( Exception^ e )
{
Console::WriteLine( e->Message );
}
// Create a new TripleDES key.
TripleDESCryptoServiceProvider^ tDESkey = gcnew TripleDESCryptoServiceProvider;
try
{
// Encrypt the "creditcard" element.
Encrypt( xmlDoc, L"creditcard", tDESkey, L"tDesKey" );
// Display the encrypted XML to the console.
Console::WriteLine( L"Encrypted XML:" );
Console::WriteLine();
Console::WriteLine( xmlDoc->OuterXml );
// Decrypt the "creditcard" element.
Decrypt( xmlDoc, tDESkey, L"tDesKey" );
// Display the encrypted XML to the console.
Console::WriteLine();
Console::WriteLine( L"Decrypted XML:" );
Console::WriteLine();
Console::WriteLine( xmlDoc->OuterXml );
}
catch ( Exception^ e )
{
Console::WriteLine( e->Message );
}
finally
{
// Clear the TripleDES key.
tDESkey->Clear();
}
}
using System;
using System.Xml;
using System.Security.Cryptography;
using System.Security.Cryptography.Xml;
class Program
{
static void Main(string[] args)
{
// Create an XmlDocument object.
XmlDocument xmlDoc = new XmlDocument();
// Load an XML file into the XmlDocument object.
try
{
xmlDoc.PreserveWhitespace = true;
xmlDoc.Load("test.xml");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
// Create a new TripleDES key.
TripleDESCryptoServiceProvider tDESkey = new TripleDESCryptoServiceProvider();
try
{
// Encrypt the "creditcard" element.
Encrypt(xmlDoc, "creditcard", tDESkey, "tDesKey");
// Display the encrypted XML to the console.
Console.WriteLine("Encrypted XML:");
Console.WriteLine();
Console.WriteLine(xmlDoc.OuterXml);
// Decrypt the "creditcard" element.
Decrypt(xmlDoc, tDESkey, "tDesKey");
// Display the encrypted XML to the console.
Console.WriteLine();
Console.WriteLine("Decrypted XML:");
Console.WriteLine();
Console.WriteLine(xmlDoc.OuterXml);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
finally
{
// Clear the TripleDES key.
tDESkey.Clear();
}
}
public static void Encrypt(XmlDocument Doc, string ElementToEncrypt, SymmetricAlgorithm Alg, string KeyName)
{
// Check the arguments.
if (Doc == null)
throw new ArgumentNullException("Doc");
if (ElementToEncrypt == null)
throw new ArgumentNullException("ElementToEncrypt");
if (Alg == null)
throw new ArgumentNullException("Alg");
////////////////////////////////////////////////
// Find the specified element in the XmlDocument
// object and create a new XmlElemnt object.
////////////////////////////////////////////////
XmlElement elementToEncrypt = Doc.GetElementsByTagName(ElementToEncrypt)[0] as XmlElement;
// Throw an XmlException if the element was not found.
if (elementToEncrypt == null)
{
throw new XmlException("The specified element was not found");
}
//////////////////////////////////////////////////
// Create a new instance of the EncryptedXml class
// and use it to encrypt the XmlElement with the
// symmetric key.
//////////////////////////////////////////////////
EncryptedXml eXml = new EncryptedXml();
// Add the key mapping.
eXml.AddKeyNameMapping(KeyName, Alg);
// Encrypt the element.
EncryptedData edElement = eXml.Encrypt(elementToEncrypt, KeyName);
////////////////////////////////////////////////////
// Replace the element from the original XmlDocument
// object with the EncryptedData element.
////////////////////////////////////////////////////
EncryptedXml.ReplaceElement(elementToEncrypt, edElement, false);
}
public static void Decrypt(XmlDocument Doc, SymmetricAlgorithm Alg, string KeyName)
{
// Check the arguments.
if (Doc == null)
throw new ArgumentNullException("Doc");
if (Alg == null)
throw new ArgumentNullException("Alg");
if (KeyName == null)
throw new ArgumentNullException("KeyName");
// Create a new EncryptedXml object.
EncryptedXml exml = new EncryptedXml(Doc);
// Add the key name mapping.
exml.AddKeyNameMapping(KeyName, Alg);
// Decrypt the XML document.
exml.DecryptDocument();
}
}
Imports System.Xml
Imports System.Security.Cryptography
Imports System.Security.Cryptography.Xml
Module Program
Sub Main(ByVal args() As String)
' Create an XmlDocument object.
Dim xmlDoc As New XmlDocument()
' Load an XML file into the XmlDocument object.
Try
xmlDoc.PreserveWhitespace = True
xmlDoc.Load("test.xml")
Catch e As Exception
Console.WriteLine(e.Message)
End Try
' Create a new TripleDES key.
Dim tDESkey As New TripleDESCryptoServiceProvider()
Try
' Encrypt the "creditcard" element.
Encrypt(xmlDoc, "creditcard", tDESkey, "tDesKey")
' Display the encrypted XML to the console.
Console.WriteLine("Encrypted XML:")
Console.WriteLine()
Console.WriteLine(xmlDoc.OuterXml)
' Decrypt the "creditcard" element.
Decrypt(xmlDoc, tDESkey, "tDesKey")
' Display the encrypted XML to the console.
Console.WriteLine()
Console.WriteLine("Decrypted XML:")
Console.WriteLine()
Console.WriteLine(xmlDoc.OuterXml)
Catch e As Exception
Console.WriteLine(e.Message)
Finally
' Clear the TripleDES key.
tDESkey.Clear()
End Try
End Sub
Sub Encrypt(ByVal Doc As XmlDocument, ByVal ElementToEncrypt As String, ByVal Alg As SymmetricAlgorithm, ByVal KeyName As String)
' Check the arguments.
If Doc Is Nothing Then
Throw New ArgumentNullException("Doc")
End If
If ElementToEncrypt Is Nothing Then
Throw New ArgumentNullException("ElementToEncrypt")
End If
If Alg Is Nothing Then
Throw New ArgumentNullException("Alg")
End If
'''''''''''''''''''''''''''''''''''''''''''''''''''
' Find the specified element in the XmlDocument
' object and create a new XmlElemnt object.
'''''''''''''''''''''''''''''''''''''''''''''''''''
Dim elementEncrypt As XmlElement = Doc.GetElementsByTagName(ElementToEncrypt)(0)
' Throw an XmlException if the element was not found.
If ElementToEncrypt Is Nothing Then
Throw New XmlException("The specified element was not found")
End If
'''''''''''''''''''''''''''''''''''''''''''''''''''
' Create a new instance of the EncryptedXml class
' and use it to encrypt the XmlElement with the
' symmetric key.
'''''''''''''''''''''''''''''''''''''''''''''''''''
Dim eXml As New EncryptedXml()
' Add the key mapping.
eXml.AddKeyNameMapping(KeyName, Alg)
' Encrypt the element.
Dim edElement As EncryptedData = eXml.Encrypt(elementEncrypt, KeyName)
'''''''''''''''''''''''''''''''''''''''''''''''''''
' Replace the element from the original XmlDocument
' object with the EncryptedData element.
'''''''''''''''''''''''''''''''''''''''''''''''''''
EncryptedXml.ReplaceElement(elementEncrypt, edElement, False)
End Sub
Sub Decrypt(ByVal Doc As XmlDocument, ByVal Alg As SymmetricAlgorithm, ByVal KeyName As String)
' Check the arguments.
If Doc Is Nothing Then
Throw New ArgumentNullException("Doc")
End If
If Alg Is Nothing Then
Throw New ArgumentNullException("Alg")
End If
If KeyName Is Nothing Then
Throw New ArgumentNullException("KeyName")
End If
' Create a new EncryptedXml object.
Dim exml As New EncryptedXml(Doc)
' Add the key name mapping.
exml.AddKeyNameMapping(KeyName, Alg)
' Decrypt the XML document.
exml.DecryptDocument()
End Sub
End Module
Aşağıdaki kod örneğinde, X.509 sertifikası kullanarak XML belgesinin nasıl şifrelenmesi gösterilmektedir. Bu örnek, belgeyi şifrelemek için bir simetrik oturum anahtarı oluşturur ve ardından oturum anahtarının şifrelenmiş bir sürümünü XML belgesine eklemek için X.509 sertifikasını kullanır.
#using <System.Security.dll>
#using <System.dll>
#using <System.Xml.dll>
using namespace System;
using namespace System::Xml;
using namespace System::Security::Cryptography;
using namespace System::Security::Cryptography::Xml;
using namespace System::Security::Cryptography::X509Certificates;
static void Encrypt( XmlDocument^ Doc, String^ ElementToEncrypt, X509Certificate2^ Cert )
{
// Check the arguments.
if ( Doc == nullptr )
throw gcnew ArgumentNullException( L"Doc" );
if ( ElementToEncrypt == nullptr )
throw gcnew ArgumentNullException( L"ElementToEncrypt" );
if ( Cert == nullptr )
throw gcnew ArgumentNullException( L"Cert" );
////////////////////////////////////////////////
// Find the specified element in the XmlDocument
// object and create a new XmlElemnt object.
////////////////////////////////////////////////
XmlElement^ elementToEncrypt = dynamic_cast<XmlElement^>(Doc->GetElementsByTagName( ElementToEncrypt )->Item( 0 ));
// Throw an XmlException if the element was not found.
if ( elementToEncrypt == nullptr )
{
throw gcnew XmlException( L"The specified element was not found" );
}
//////////////////////////////////////////////////
// Create a new instance of the EncryptedXml class
// and use it to encrypt the XmlElement with the
// X.509 Certificate.
//////////////////////////////////////////////////
EncryptedXml^ eXml = gcnew EncryptedXml;
// Encrypt the element.
EncryptedData^ edElement = eXml->Encrypt( elementToEncrypt, Cert );
////////////////////////////////////////////////////
// Replace the element from the original XmlDocument
// object with the EncryptedData element.
////////////////////////////////////////////////////
EncryptedXml::ReplaceElement( elementToEncrypt, edElement, false );
}
static void Decrypt( XmlDocument^ Doc )
{
// Check the arguments.
if ( Doc == nullptr )
throw gcnew ArgumentNullException( L"Doc" );
// Create a new EncryptedXml object.
EncryptedXml^ exml = gcnew EncryptedXml( Doc );
// Decrypt the XML document.
exml->DecryptDocument();
}
int main()
{
// Create an XmlDocument object.
XmlDocument^ xmlDoc = gcnew XmlDocument;
// Load an XML file into the XmlDocument object.
try
{
xmlDoc->PreserveWhitespace = true;
xmlDoc->Load( L"test.xml" );
}
catch ( Exception^ e )
{
Console::WriteLine( e->Message );
return 0;
}
// Create a new X509Certificate2 object by loading
// an X.509 certificate file. To use XML encryption
// with an X.509 certificate, use an X509Certificate2
// object to encrypt, but use a certificate in a certificate
// store to decrypt.
// You can create a new test certificate file using the
// makecert.exe tool.
// Create an X509Certificate2 object for encryption.
X509Certificate2^ cert = gcnew X509Certificate2( L"test.pfx" );
// Put the certificate in certificate store for decryption.
X509Store^ store = gcnew X509Store( StoreLocation::CurrentUser );
store->Open( OpenFlags::ReadWrite );
store->Add( cert );
store->Close();
try
{
// Encrypt the "creditcard" element.
Encrypt( xmlDoc, L"creditcard", cert );
// Display the encrypted XML to the console.
Console::WriteLine( L"Encrypted XML:" );
Console::WriteLine();
Console::WriteLine( xmlDoc->OuterXml );
// Decrypt the "creditcard" element.
Decrypt( xmlDoc );
// Display the encrypted XML to the console.
Console::WriteLine();
Console::WriteLine( L"Decrypted XML:" );
Console::WriteLine();
Console::WriteLine( xmlDoc->OuterXml );
}
catch ( Exception^ e )
{
Console::WriteLine( e->Message );
}
return 1;
}
using System;
using System.Xml;
using System.Security.Cryptography;
using System.Security.Cryptography.Xml;
using System.Security.Cryptography.X509Certificates;
class Program
{
static void Main(string[] args)
{
// Create an XmlDocument object.
XmlDocument xmlDoc = new XmlDocument();
// Load an XML file into the XmlDocument object.
try
{
xmlDoc.PreserveWhitespace = true;
xmlDoc.Load("test.xml");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return;
}
// Create a new X509Certificate2 object by loading
// an X.509 certificate file. To use XML encryption
// with an X.509 certificate, use an X509Certificate2
// object to encrypt, but use a certificate in a certificate
// store to decrypt.
// You can create a new test certificate file using the
// makecert.exe tool.
// Create an X509Certificate2 object for encryption.
X509Certificate2 cert = new X509Certificate2("test.pfx");
// Put the certificate in certificate store for decryption.
X509Store store = new X509Store(StoreLocation.CurrentUser);
store.Open(OpenFlags.ReadWrite);
store.Add(cert);
store.Close();
try
{
// Encrypt the "creditcard" element.
Encrypt(xmlDoc, "creditcard", cert);
// Display the encrypted XML to the console.
Console.WriteLine("Encrypted XML:");
Console.WriteLine();
Console.WriteLine(xmlDoc.OuterXml);
// Decrypt the "creditcard" element.
Decrypt(xmlDoc);
// Display the encrypted XML to the console.
Console.WriteLine();
Console.WriteLine("Decrypted XML:");
Console.WriteLine();
Console.WriteLine(xmlDoc.OuterXml);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
public static void Encrypt(XmlDocument Doc, string ElementToEncrypt, X509Certificate2 Cert)
{
// Check the arguments.
if (Doc == null)
throw new ArgumentNullException("Doc");
if (ElementToEncrypt == null)
throw new ArgumentNullException("ElementToEncrypt");
if (Cert == null)
throw new ArgumentNullException("Cert");
////////////////////////////////////////////////
// Find the specified element in the XmlDocument
// object and create a new XmlElemnt object.
////////////////////////////////////////////////
XmlElement elementToEncrypt = Doc.GetElementsByTagName(ElementToEncrypt)[0] as XmlElement;
// Throw an XmlException if the element was not found.
if (elementToEncrypt == null)
{
throw new XmlException("The specified element was not found");
}
//////////////////////////////////////////////////
// Create a new instance of the EncryptedXml class
// and use it to encrypt the XmlElement with the
// X.509 Certificate.
//////////////////////////////////////////////////
EncryptedXml eXml = new EncryptedXml();
// Encrypt the element.
EncryptedData edElement = eXml.Encrypt(elementToEncrypt, Cert);
////////////////////////////////////////////////////
// Replace the element from the original XmlDocument
// object with the EncryptedData element.
////////////////////////////////////////////////////
EncryptedXml.ReplaceElement(elementToEncrypt, edElement, false);
}
public static void Decrypt(XmlDocument Doc)
{
// Check the arguments.
if (Doc == null)
throw new ArgumentNullException("Doc");
// Create a new EncryptedXml object.
EncryptedXml exml = new EncryptedXml(Doc);
// Decrypt the XML document.
exml.DecryptDocument();
}
}
Imports System.Xml
Imports System.Security.Cryptography
Imports System.Security.Cryptography.Xml
Imports System.Security.Cryptography.X509Certificates
Module Program
Sub Main(ByVal args() As String)
' Create an XmlDocument object.
Dim xmlDoc As New XmlDocument()
' Load an XML file into the XmlDocument object.
Try
xmlDoc.PreserveWhitespace = True
xmlDoc.Load("test.xml")
Catch e As Exception
Console.WriteLine(e.Message)
Return
End Try
' Create a new X509Certificate2 object by loading
' an X.509 certificate file. To use XML encryption
' with an X.509 certificate, use an X509Certificate2
' object to encrypt, but use a certificate in a certificate
' store to decrypt.
' You can create a new test certificate file using the
' makecert.exe tool.
' Create an X509Certificate2 object for encryption.
Dim cert As New X509Certificate2("test.pfx")
' Put the certificate in certificate store for decryption.
Dim store As New X509Store(StoreLocation.CurrentUser)
store.Open(OpenFlags.ReadWrite)
store.Add(cert)
store.Close()
Try
' Encrypt the "creditcard" element.
Encrypt(xmlDoc, "creditcard", cert)
' Display the encrypted XML to the console.
Console.WriteLine("Encrypted XML:")
Console.WriteLine()
Console.WriteLine(xmlDoc.OuterXml)
' Decrypt the "creditcard" element.
Decrypt(xmlDoc)
' Display the encrypted XML to the console.
Console.WriteLine()
Console.WriteLine("Decrypted XML:")
Console.WriteLine()
Console.WriteLine(xmlDoc.OuterXml)
Catch e As Exception
Console.WriteLine(e.Message)
End Try
End Sub
Sub Encrypt(ByVal Doc As XmlDocument, ByVal ElementToEncrypt As String, ByVal Cert As X509Certificate2)
' Check the arguments.
If Doc Is Nothing Then
Throw New ArgumentNullException("Doc")
End If
If ElementToEncrypt Is Nothing Then
Throw New ArgumentNullException("ElementToEncrypt")
End If
If Cert Is Nothing Then
Throw New ArgumentNullException("Cert")
End If
'''''''''''''''''''''''''''''''''''''''''''''''''''
' Find the specified element in the XmlDocument
' object and create a new XmlElemnt object.
'''''''''''''''''''''''''''''''''''''''''''''''''''
Dim elementEncrypt As XmlElement = Doc.GetElementsByTagName(ElementToEncrypt)(0)
' Throw an XmlException if the element was not found.
If elementToEncrypt Is Nothing Then
Throw New XmlException("The specified element was not found")
End If
'''''''''''''''''''''''''''''''''''''''''''''''''''
' Create a new instance of the EncryptedXml class
' and use it to encrypt the XmlElement with the
' X.509 Certificate.
'''''''''''''''''''''''''''''''''''''''''''''''''''
Dim eXml As New EncryptedXml()
' Encrypt the element.
Dim edElement As EncryptedData = eXml.Encrypt(elementEncrypt, Cert)
'''''''''''''''''''''''''''''''''''''''''''''''''''
' Replace the element from the original XmlDocument
' object with the EncryptedData element.
'''''''''''''''''''''''''''''''''''''''''''''''''''
EncryptedXml.ReplaceElement(elementEncrypt, edElement, False)
End Sub
Sub Decrypt(ByVal Doc As XmlDocument)
' Check the arguments.
If Doc Is Nothing Then
Throw New ArgumentNullException("Doc")
End If
' Create a new EncryptedXml object.
Dim exml As New EncryptedXml(Doc)
' Decrypt the XML document.
exml.DecryptDocument()
End Sub
End Module
Encrypt(XmlElement, X509Certificate2)
- Kaynak:
- EncryptedXml.cs
- Kaynak:
- EncryptedXml.cs
- Kaynak:
- EncryptedXml.cs
- Kaynak:
- EncryptedXml.cs
- Kaynak:
- EncryptedXml.cs
Belirtilen X.509 sertifikasını kullanarak öğenin dış XML'sini şifreler.
public:
System::Security::Cryptography::Xml::EncryptedData ^ Encrypt(System::Xml::XmlElement ^ inputElement, System::Security::Cryptography::X509Certificates::X509Certificate2 ^ certificate);public System.Security.Cryptography.Xml.EncryptedData Encrypt (System.Xml.XmlElement inputElement, System.Security.Cryptography.X509Certificates.X509Certificate2 certificate);member this.Encrypt : System.Xml.XmlElement * System.Security.Cryptography.X509Certificates.X509Certificate2 -> System.Security.Cryptography.Xml.EncryptedDataPublic Function Encrypt (inputElement As XmlElement, certificate As X509Certificate2) As EncryptedDataParametreler
- inputElement
- XmlElement
Şifrelenmesi gereken XML öğesi.
- certificate
- X509Certificate2
Şifreleme için kullanılacak X.509 sertifikası.
Döndürülenler
EncryptedData Şifrelenmiş XML verilerini temsil eden bir öğe.
Özel durumlar
parametresinin inputElement değeridir null.
-veya-
parametresinin certificate değeridir null.
parametresinin certificate değeri bir RSA anahtar algoritmasını temsil etmez.
Örnekler
Aşağıdaki kod örneğinde, X.509 sertifikası kullanarak XML belgesinin nasıl şifrelenmesi gösterilmektedir. Bu örnek, belgeyi şifrelemek için bir simetrik oturum anahtarı oluşturur ve ardından oturum anahtarının şifrelenmiş bir sürümünü XML belgesine eklemek için X.509 sertifikasını kullanır.
#using <System.Security.dll>
#using <System.dll>
#using <System.Xml.dll>
using namespace System;
using namespace System::Xml;
using namespace System::Security::Cryptography;
using namespace System::Security::Cryptography::Xml;
using namespace System::Security::Cryptography::X509Certificates;
static void Encrypt( XmlDocument^ Doc, String^ ElementToEncrypt, X509Certificate2^ Cert )
{
// Check the arguments.
if ( Doc == nullptr )
throw gcnew ArgumentNullException( L"Doc" );
if ( ElementToEncrypt == nullptr )
throw gcnew ArgumentNullException( L"ElementToEncrypt" );
if ( Cert == nullptr )
throw gcnew ArgumentNullException( L"Cert" );
////////////////////////////////////////////////
// Find the specified element in the XmlDocument
// object and create a new XmlElemnt object.
////////////////////////////////////////////////
XmlElement^ elementToEncrypt = dynamic_cast<XmlElement^>(Doc->GetElementsByTagName( ElementToEncrypt )->Item( 0 ));
// Throw an XmlException if the element was not found.
if ( elementToEncrypt == nullptr )
{
throw gcnew XmlException( L"The specified element was not found" );
}
//////////////////////////////////////////////////
// Create a new instance of the EncryptedXml class
// and use it to encrypt the XmlElement with the
// X.509 Certificate.
//////////////////////////////////////////////////
EncryptedXml^ eXml = gcnew EncryptedXml;
// Encrypt the element.
EncryptedData^ edElement = eXml->Encrypt( elementToEncrypt, Cert );
////////////////////////////////////////////////////
// Replace the element from the original XmlDocument
// object with the EncryptedData element.
////////////////////////////////////////////////////
EncryptedXml::ReplaceElement( elementToEncrypt, edElement, false );
}
static void Decrypt( XmlDocument^ Doc )
{
// Check the arguments.
if ( Doc == nullptr )
throw gcnew ArgumentNullException( L"Doc" );
// Create a new EncryptedXml object.
EncryptedXml^ exml = gcnew EncryptedXml( Doc );
// Decrypt the XML document.
exml->DecryptDocument();
}
int main()
{
// Create an XmlDocument object.
XmlDocument^ xmlDoc = gcnew XmlDocument;
// Load an XML file into the XmlDocument object.
try
{
xmlDoc->PreserveWhitespace = true;
xmlDoc->Load( L"test.xml" );
}
catch ( Exception^ e )
{
Console::WriteLine( e->Message );
return 0;
}
// Create a new X509Certificate2 object by loading
// an X.509 certificate file. To use XML encryption
// with an X.509 certificate, use an X509Certificate2
// object to encrypt, but use a certificate in a certificate
// store to decrypt.
// You can create a new test certificate file using the
// makecert.exe tool.
// Create an X509Certificate2 object for encryption.
X509Certificate2^ cert = gcnew X509Certificate2( L"test.pfx" );
// Put the certificate in certificate store for decryption.
X509Store^ store = gcnew X509Store( StoreLocation::CurrentUser );
store->Open( OpenFlags::ReadWrite );
store->Add( cert );
store->Close();
try
{
// Encrypt the "creditcard" element.
Encrypt( xmlDoc, L"creditcard", cert );
// Display the encrypted XML to the console.
Console::WriteLine( L"Encrypted XML:" );
Console::WriteLine();
Console::WriteLine( xmlDoc->OuterXml );
// Decrypt the "creditcard" element.
Decrypt( xmlDoc );
// Display the encrypted XML to the console.
Console::WriteLine();
Console::WriteLine( L"Decrypted XML:" );
Console::WriteLine();
Console::WriteLine( xmlDoc->OuterXml );
}
catch ( Exception^ e )
{
Console::WriteLine( e->Message );
}
return 1;
}
using System;
using System.Xml;
using System.Security.Cryptography;
using System.Security.Cryptography.Xml;
using System.Security.Cryptography.X509Certificates;
class Program
{
static void Main(string[] args)
{
// Create an XmlDocument object.
XmlDocument xmlDoc = new XmlDocument();
// Load an XML file into the XmlDocument object.
try
{
xmlDoc.PreserveWhitespace = true;
xmlDoc.Load("test.xml");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return;
}
// Create a new X509Certificate2 object by loading
// an X.509 certificate file. To use XML encryption
// with an X.509 certificate, use an X509Certificate2
// object to encrypt, but use a certificate in a certificate
// store to decrypt.
// You can create a new test certificate file using the
// makecert.exe tool.
// Create an X509Certificate2 object for encryption.
X509Certificate2 cert = new X509Certificate2("test.pfx");
// Put the certificate in certificate store for decryption.
X509Store store = new X509Store(StoreLocation.CurrentUser);
store.Open(OpenFlags.ReadWrite);
store.Add(cert);
store.Close();
try
{
// Encrypt the "creditcard" element.
Encrypt(xmlDoc, "creditcard", cert);
// Display the encrypted XML to the console.
Console.WriteLine("Encrypted XML:");
Console.WriteLine();
Console.WriteLine(xmlDoc.OuterXml);
// Decrypt the "creditcard" element.
Decrypt(xmlDoc);
// Display the encrypted XML to the console.
Console.WriteLine();
Console.WriteLine("Decrypted XML:");
Console.WriteLine();
Console.WriteLine(xmlDoc.OuterXml);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
public static void Encrypt(XmlDocument Doc, string ElementToEncrypt, X509Certificate2 Cert)
{
// Check the arguments.
if (Doc == null)
throw new ArgumentNullException("Doc");
if (ElementToEncrypt == null)
throw new ArgumentNullException("ElementToEncrypt");
if (Cert == null)
throw new ArgumentNullException("Cert");
////////////////////////////////////////////////
// Find the specified element in the XmlDocument
// object and create a new XmlElemnt object.
////////////////////////////////////////////////
XmlElement elementToEncrypt = Doc.GetElementsByTagName(ElementToEncrypt)[0] as XmlElement;
// Throw an XmlException if the element was not found.
if (elementToEncrypt == null)
{
throw new XmlException("The specified element was not found");
}
//////////////////////////////////////////////////
// Create a new instance of the EncryptedXml class
// and use it to encrypt the XmlElement with the
// X.509 Certificate.
//////////////////////////////////////////////////
EncryptedXml eXml = new EncryptedXml();
// Encrypt the element.
EncryptedData edElement = eXml.Encrypt(elementToEncrypt, Cert);
////////////////////////////////////////////////////
// Replace the element from the original XmlDocument
// object with the EncryptedData element.
////////////////////////////////////////////////////
EncryptedXml.ReplaceElement(elementToEncrypt, edElement, false);
}
public static void Decrypt(XmlDocument Doc)
{
// Check the arguments.
if (Doc == null)
throw new ArgumentNullException("Doc");
// Create a new EncryptedXml object.
EncryptedXml exml = new EncryptedXml(Doc);
// Decrypt the XML document.
exml.DecryptDocument();
}
}
Imports System.Xml
Imports System.Security.Cryptography
Imports System.Security.Cryptography.Xml
Imports System.Security.Cryptography.X509Certificates
Module Program
Sub Main(ByVal args() As String)
' Create an XmlDocument object.
Dim xmlDoc As New XmlDocument()
' Load an XML file into the XmlDocument object.
Try
xmlDoc.PreserveWhitespace = True
xmlDoc.Load("test.xml")
Catch e As Exception
Console.WriteLine(e.Message)
Return
End Try
' Create a new X509Certificate2 object by loading
' an X.509 certificate file. To use XML encryption
' with an X.509 certificate, use an X509Certificate2
' object to encrypt, but use a certificate in a certificate
' store to decrypt.
' You can create a new test certificate file using the
' makecert.exe tool.
' Create an X509Certificate2 object for encryption.
Dim cert As New X509Certificate2("test.pfx")
' Put the certificate in certificate store for decryption.
Dim store As New X509Store(StoreLocation.CurrentUser)
store.Open(OpenFlags.ReadWrite)
store.Add(cert)
store.Close()
Try
' Encrypt the "creditcard" element.
Encrypt(xmlDoc, "creditcard", cert)
' Display the encrypted XML to the console.
Console.WriteLine("Encrypted XML:")
Console.WriteLine()
Console.WriteLine(xmlDoc.OuterXml)
' Decrypt the "creditcard" element.
Decrypt(xmlDoc)
' Display the encrypted XML to the console.
Console.WriteLine()
Console.WriteLine("Decrypted XML:")
Console.WriteLine()
Console.WriteLine(xmlDoc.OuterXml)
Catch e As Exception
Console.WriteLine(e.Message)
End Try
End Sub
Sub Encrypt(ByVal Doc As XmlDocument, ByVal ElementToEncrypt As String, ByVal Cert As X509Certificate2)
' Check the arguments.
If Doc Is Nothing Then
Throw New ArgumentNullException("Doc")
End If
If ElementToEncrypt Is Nothing Then
Throw New ArgumentNullException("ElementToEncrypt")
End If
If Cert Is Nothing Then
Throw New ArgumentNullException("Cert")
End If
'''''''''''''''''''''''''''''''''''''''''''''''''''
' Find the specified element in the XmlDocument
' object and create a new XmlElemnt object.
'''''''''''''''''''''''''''''''''''''''''''''''''''
Dim elementEncrypt As XmlElement = Doc.GetElementsByTagName(ElementToEncrypt)(0)
' Throw an XmlException if the element was not found.
If elementToEncrypt Is Nothing Then
Throw New XmlException("The specified element was not found")
End If
'''''''''''''''''''''''''''''''''''''''''''''''''''
' Create a new instance of the EncryptedXml class
' and use it to encrypt the XmlElement with the
' X.509 Certificate.
'''''''''''''''''''''''''''''''''''''''''''''''''''
Dim eXml As New EncryptedXml()
' Encrypt the element.
Dim edElement As EncryptedData = eXml.Encrypt(elementEncrypt, Cert)
'''''''''''''''''''''''''''''''''''''''''''''''''''
' Replace the element from the original XmlDocument
' object with the EncryptedData element.
'''''''''''''''''''''''''''''''''''''''''''''''''''
EncryptedXml.ReplaceElement(elementEncrypt, edElement, False)
End Sub
Sub Decrypt(ByVal Doc As XmlDocument)
' Check the arguments.
If Doc Is Nothing Then
Throw New ArgumentNullException("Doc")
End If
' Create a new EncryptedXml object.
Dim exml As New EncryptedXml(Doc)
' Decrypt the XML document.
exml.DecryptDocument()
End Sub
End Module
Açıklamalar
Encrypt yöntemi, bir öğenin dış XML'sini sertifika kullanarak şifrelemenin kullanışlı bir yoludur. Bu yöntem, bir XML öğesini şifrelemek için 256 bit Gelişmiş Şifreleme Standardı (AES) oturum anahtarı oluşturur ve ardından nesnesini kullanarak X509Certificate2 AES anahtarını şifreler ve imzalar. Yöntemi Encrypt daha sonra sonuçta elde edilen XML'yi bir EncryptedData öğe olarak döndürür.
Şifrelenmiş bilgileri bir <CipherReference> öğeye yerleştirebilmeniz veya xml öğesinin tamamının mı yoksa yalnızca içeriğinin mi şifreleneceğini belirtebilmeniz için şifreleme üzerinde daha fazla denetime ihtiyacınız varsa yöntem aşırı yüklemelerini kullanın EncryptData .
X.509 sertifikalarıyla XML Şifrelemesi'ni kullanmak için Microsoft Gelişmiş Şifreleme Sağlayıcısı'nı yüklemiş olmanız ve X.509 sertifikasının Gelişmiş Sağlayıcı'yı kullanması gerekir. Microsoft Gelişmiş Şifreleme Sağlayıcısı yüklü değilse veya X.509 sertifikası Gelişmiş Sağlayıcı'yı kullanmıyorsa, CryptographicException XML belgesinin şifresini çözdiğinizde "Bilinmeyen Hata" içeren bir oluşturulur.
Şunlara uygulanır
Encrypt(XmlElement, String)
- Kaynak:
- EncryptedXml.cs
- Kaynak:
- EncryptedXml.cs
- Kaynak:
- EncryptedXml.cs
- Kaynak:
- EncryptedXml.cs
- Kaynak:
- EncryptedXml.cs
Bir öğenin dış XML'sini anahtar eşleme tablosunda belirtilen anahtarı kullanarak şifreler.
public:
System::Security::Cryptography::Xml::EncryptedData ^ Encrypt(System::Xml::XmlElement ^ inputElement, System::String ^ keyName);public System.Security.Cryptography.Xml.EncryptedData Encrypt (System.Xml.XmlElement inputElement, string keyName);member this.Encrypt : System.Xml.XmlElement * string -> System.Security.Cryptography.Xml.EncryptedDataPublic Function Encrypt (inputElement As XmlElement, keyName As String) As EncryptedDataParametreler
- inputElement
- XmlElement
Şifrelenmesi gereken XML öğesi.
- keyName
- String
Anahtar eşleme tablosunda bulunabilen bir anahtar adı.
Döndürülenler
EncryptedData Şifrelenmiş XML verilerini temsil eden bir nesne.
Özel durumlar
parametresinin inputElement değeridir null.
-veya-
parametresinin keyName değeridir null.
parametresinin keyName değeri kayıtlı anahtar adı çifti ile eşleşmiyor.
-veya-
parametresi tarafından keyName açıklanan şifreleme anahtarı desteklenmez.
Örnekler
Aşağıdaki kod örneğinde, bir XML belgesinin simetrik anahtar kullanılarak nasıl şifrelenmesi gösterilmektedir.
#using <System.Security.dll>
#using <System.dll>
#using <System.Xml.dll>
using namespace System;
using namespace System::Xml;
using namespace System::Security::Cryptography;
using namespace System::Security::Cryptography::Xml;
static void Encrypt( XmlDocument^ Doc, String^ ElementToEncrypt, SymmetricAlgorithm^ Alg, String^ KeyName )
{
// Check the arguments.
if ( Doc == nullptr )
throw gcnew ArgumentNullException( L"Doc" );
if ( ElementToEncrypt == nullptr )
throw gcnew ArgumentNullException( L"ElementToEncrypt" );
if ( Alg == nullptr )
throw gcnew ArgumentNullException( L"Alg" );
////////////////////////////////////////////////
// Find the specified element in the XmlDocument
// object and create a new XmlElemnt object.
////////////////////////////////////////////////
XmlElement^ elementToEncrypt = dynamic_cast<XmlElement^>(Doc->GetElementsByTagName( ElementToEncrypt )->Item( 0 ));
// Throw an XmlException if the element was not found.
if ( elementToEncrypt == nullptr )
{
throw gcnew XmlException( L"The specified element was not found" );
}
//////////////////////////////////////////////////
// Create a new instance of the EncryptedXml class
// and use it to encrypt the XmlElement with the
// symmetric key.
//////////////////////////////////////////////////
EncryptedXml^ eXml = gcnew EncryptedXml;
// Add the key mapping.
eXml->AddKeyNameMapping( KeyName, Alg );
// Encrypt the element.
EncryptedData^ edElement = eXml->Encrypt( elementToEncrypt, KeyName );
////////////////////////////////////////////////////
// Replace the element from the original XmlDocument
// object with the EncryptedData element.
////////////////////////////////////////////////////
EncryptedXml::ReplaceElement( elementToEncrypt, edElement, false );
}
static void Decrypt( XmlDocument^ Doc, SymmetricAlgorithm^ Alg, String^ KeyName )
{
// Check the arguments.
if ( Doc == nullptr )
throw gcnew ArgumentNullException( L"Doc" );
if ( Alg == nullptr )
throw gcnew ArgumentNullException( L"Alg" );
if ( KeyName == nullptr )
throw gcnew ArgumentNullException( L"KeyName" );
// Create a new EncryptedXml object.
EncryptedXml^ exml = gcnew EncryptedXml( Doc );
// Add the key name mapping.
exml->AddKeyNameMapping( KeyName, Alg );
// Decrypt the XML document.
exml->DecryptDocument();
}
int main()
{
// Create an XmlDocument object.
XmlDocument^ xmlDoc = gcnew XmlDocument;
// Load an XML file into the XmlDocument object.
try
{
xmlDoc->PreserveWhitespace = true;
xmlDoc->Load( L"test.xml" );
}
catch ( Exception^ e )
{
Console::WriteLine( e->Message );
}
// Create a new TripleDES key.
TripleDESCryptoServiceProvider^ tDESkey = gcnew TripleDESCryptoServiceProvider;
try
{
// Encrypt the "creditcard" element.
Encrypt( xmlDoc, L"creditcard", tDESkey, L"tDesKey" );
// Display the encrypted XML to the console.
Console::WriteLine( L"Encrypted XML:" );
Console::WriteLine();
Console::WriteLine( xmlDoc->OuterXml );
// Decrypt the "creditcard" element.
Decrypt( xmlDoc, tDESkey, L"tDesKey" );
// Display the encrypted XML to the console.
Console::WriteLine();
Console::WriteLine( L"Decrypted XML:" );
Console::WriteLine();
Console::WriteLine( xmlDoc->OuterXml );
}
catch ( Exception^ e )
{
Console::WriteLine( e->Message );
}
finally
{
// Clear the TripleDES key.
tDESkey->Clear();
}
}
using System;
using System.Xml;
using System.Security.Cryptography;
using System.Security.Cryptography.Xml;
class Program
{
static void Main(string[] args)
{
// Create an XmlDocument object.
XmlDocument xmlDoc = new XmlDocument();
// Load an XML file into the XmlDocument object.
try
{
xmlDoc.PreserveWhitespace = true;
xmlDoc.Load("test.xml");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
// Create a new TripleDES key.
TripleDESCryptoServiceProvider tDESkey = new TripleDESCryptoServiceProvider();
try
{
// Encrypt the "creditcard" element.
Encrypt(xmlDoc, "creditcard", tDESkey, "tDesKey");
// Display the encrypted XML to the console.
Console.WriteLine("Encrypted XML:");
Console.WriteLine();
Console.WriteLine(xmlDoc.OuterXml);
// Decrypt the "creditcard" element.
Decrypt(xmlDoc, tDESkey, "tDesKey");
// Display the encrypted XML to the console.
Console.WriteLine();
Console.WriteLine("Decrypted XML:");
Console.WriteLine();
Console.WriteLine(xmlDoc.OuterXml);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
finally
{
// Clear the TripleDES key.
tDESkey.Clear();
}
}
public static void Encrypt(XmlDocument Doc, string ElementToEncrypt, SymmetricAlgorithm Alg, string KeyName)
{
// Check the arguments.
if (Doc == null)
throw new ArgumentNullException("Doc");
if (ElementToEncrypt == null)
throw new ArgumentNullException("ElementToEncrypt");
if (Alg == null)
throw new ArgumentNullException("Alg");
////////////////////////////////////////////////
// Find the specified element in the XmlDocument
// object and create a new XmlElemnt object.
////////////////////////////////////////////////
XmlElement elementToEncrypt = Doc.GetElementsByTagName(ElementToEncrypt)[0] as XmlElement;
// Throw an XmlException if the element was not found.
if (elementToEncrypt == null)
{
throw new XmlException("The specified element was not found");
}
//////////////////////////////////////////////////
// Create a new instance of the EncryptedXml class
// and use it to encrypt the XmlElement with the
// symmetric key.
//////////////////////////////////////////////////
EncryptedXml eXml = new EncryptedXml();
// Add the key mapping.
eXml.AddKeyNameMapping(KeyName, Alg);
// Encrypt the element.
EncryptedData edElement = eXml.Encrypt(elementToEncrypt, KeyName);
////////////////////////////////////////////////////
// Replace the element from the original XmlDocument
// object with the EncryptedData element.
////////////////////////////////////////////////////
EncryptedXml.ReplaceElement(elementToEncrypt, edElement, false);
}
public static void Decrypt(XmlDocument Doc, SymmetricAlgorithm Alg, string KeyName)
{
// Check the arguments.
if (Doc == null)
throw new ArgumentNullException("Doc");
if (Alg == null)
throw new ArgumentNullException("Alg");
if (KeyName == null)
throw new ArgumentNullException("KeyName");
// Create a new EncryptedXml object.
EncryptedXml exml = new EncryptedXml(Doc);
// Add the key name mapping.
exml.AddKeyNameMapping(KeyName, Alg);
// Decrypt the XML document.
exml.DecryptDocument();
}
}
Imports System.Xml
Imports System.Security.Cryptography
Imports System.Security.Cryptography.Xml
Module Program
Sub Main(ByVal args() As String)
' Create an XmlDocument object.
Dim xmlDoc As New XmlDocument()
' Load an XML file into the XmlDocument object.
Try
xmlDoc.PreserveWhitespace = True
xmlDoc.Load("test.xml")
Catch e As Exception
Console.WriteLine(e.Message)
End Try
' Create a new TripleDES key.
Dim tDESkey As New TripleDESCryptoServiceProvider()
Try
' Encrypt the "creditcard" element.
Encrypt(xmlDoc, "creditcard", tDESkey, "tDesKey")
' Display the encrypted XML to the console.
Console.WriteLine("Encrypted XML:")
Console.WriteLine()
Console.WriteLine(xmlDoc.OuterXml)
' Decrypt the "creditcard" element.
Decrypt(xmlDoc, tDESkey, "tDesKey")
' Display the encrypted XML to the console.
Console.WriteLine()
Console.WriteLine("Decrypted XML:")
Console.WriteLine()
Console.WriteLine(xmlDoc.OuterXml)
Catch e As Exception
Console.WriteLine(e.Message)
Finally
' Clear the TripleDES key.
tDESkey.Clear()
End Try
End Sub
Sub Encrypt(ByVal Doc As XmlDocument, ByVal ElementToEncrypt As String, ByVal Alg As SymmetricAlgorithm, ByVal KeyName As String)
' Check the arguments.
If Doc Is Nothing Then
Throw New ArgumentNullException("Doc")
End If
If ElementToEncrypt Is Nothing Then
Throw New ArgumentNullException("ElementToEncrypt")
End If
If Alg Is Nothing Then
Throw New ArgumentNullException("Alg")
End If
'''''''''''''''''''''''''''''''''''''''''''''''''''
' Find the specified element in the XmlDocument
' object and create a new XmlElemnt object.
'''''''''''''''''''''''''''''''''''''''''''''''''''
Dim elementEncrypt As XmlElement = Doc.GetElementsByTagName(ElementToEncrypt)(0)
' Throw an XmlException if the element was not found.
If ElementToEncrypt Is Nothing Then
Throw New XmlException("The specified element was not found")
End If
'''''''''''''''''''''''''''''''''''''''''''''''''''
' Create a new instance of the EncryptedXml class
' and use it to encrypt the XmlElement with the
' symmetric key.
'''''''''''''''''''''''''''''''''''''''''''''''''''
Dim eXml As New EncryptedXml()
' Add the key mapping.
eXml.AddKeyNameMapping(KeyName, Alg)
' Encrypt the element.
Dim edElement As EncryptedData = eXml.Encrypt(elementEncrypt, KeyName)
'''''''''''''''''''''''''''''''''''''''''''''''''''
' Replace the element from the original XmlDocument
' object with the EncryptedData element.
'''''''''''''''''''''''''''''''''''''''''''''''''''
EncryptedXml.ReplaceElement(elementEncrypt, edElement, False)
End Sub
Sub Decrypt(ByVal Doc As XmlDocument, ByVal Alg As SymmetricAlgorithm, ByVal KeyName As String)
' Check the arguments.
If Doc Is Nothing Then
Throw New ArgumentNullException("Doc")
End If
If Alg Is Nothing Then
Throw New ArgumentNullException("Alg")
End If
If KeyName Is Nothing Then
Throw New ArgumentNullException("KeyName")
End If
' Create a new EncryptedXml object.
Dim exml As New EncryptedXml(Doc)
' Add the key name mapping.
exml.AddKeyNameMapping(KeyName, Alg)
' Decrypt the XML document.
exml.DecryptDocument()
End Sub
End Module
Açıklamalar
Bu yöntem, bir öğenin dış XML'sini anahtar adı kullanarak şifrelemenin kullanışlı bir yoludur. Şifrelenmiş bilgileri bir <CipherReference> öğeye yerleştirebilmeniz veya xml öğesinin tamamının mı yoksa yalnızca içeriğinin mi şifreleneceğini belirtebilmeniz için şifreleme üzerinde daha fazla denetime ihtiyacınız varsa yöntem aşırı yüklemelerini kullanın EncryptData .
Desteklenen tüm algoritmaların listesi için sınıfıyla EncryptedXml ilişkili sabit alanların listesine bakın.
Şunlara uygulanır
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