XmlDsigXPathTransform.LoadInnerXml メソッド
指定した XmlNodeList オブジェクトを <Transform> 要素の変換に固有な内容として解析し、現在の XmlDsigXPathTransform 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。
名前空間: System.Security.Cryptography.Xml
アセンブリ: System.Security (system.security.dll 内)
構文
例外
解説
使用例
プラットフォーム
バージョン情報
参照
アセンブリ: System.Security (system.security.dll 内)
構文
パラメータ
例外解説使用例XmlDsigXPathTransform クラスを使用して XML ドキュメントの署名および検証を行うコードの例を次に示します。このサンプルでは、エンベロープ シグネチャが作成されます。
' ' 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 Module SignVerifyEnvelope Sub Main(ByVal args() As String) ' Generate a signing key. Dim Key As New RSACryptoServiceProvider() Try ' 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, "ancestor-or-self::TempElement") 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) Finally Key.Clear() End Try End Sub ' Sign an XML file and save the signature in a new file. Sub SignXmlFile(ByVal FileName As String, ByVal SignedFileName As String, ByVal Key As RSA, ByVal XPathString As String) ' 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 = "" ' Create an XmlDsigXPathTransform object using ' the helper method 'CreateXPathTransform' defined ' later in this sample. Dim XPathTransform As XmlDsigXPathTransform = CreateXPathTransform(XPathString) ' Add the transform to the reference. reference.AddTransform(XPathTransform) ' 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)) ' 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. Function VerifyXmlFile(ByVal 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 the XML that represents the transform. Function CreateXPathTransform(ByVal XPathString As String) As XmlDsigXPathTransform ' Create a new XMLDocument object. Dim doc As New XmlDocument() ' Create a new XmlElement. Dim xPathElem As XmlElement = doc.CreateElement("XPath") ' Set the element text to the value ' of the XPath string. xPathElem.InnerText = XPathString ' Create a new XmlDsigXPathTransform object. Dim xForm As New XmlDsigXPathTransform() ' Load the XPath XML from the element. xForm.LoadInnerXml(xPathElem.SelectNodes(".")) ' Return the XML that represents the transform. Return xForm End Function ' Create example data to sign. Sub CreateSomeXml(ByVal 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, "", "MyXML", "Don't_Sign") ' Append the node to the document. document.AppendChild(node) ' Create a new XmlNode object. Dim subnode As XmlNode = document.CreateNode(XmlNodeType.Element, "", "TempElement", "Sign") ' Add some text to the node. subnode.InnerText = "Here is some data to sign." ' Append the node to the document. document.DocumentElement.AppendChild(subnode) ' 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 Module
// // 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) { // Generate a signing key. RSACryptoServiceProvider Key = new RSACryptoServiceProvider(); try { // 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, "ancestor-or-self::TempElement"); 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); } finally { Key.Clear(); } } // Sign an XML file and save the signature in a new file. public static void SignXmlFile(string FileName, string SignedFileName, RSA Key, string XPathString) { // 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 = ""; // Create an XmlDsigXPathTransform object using // the helper method 'CreateXPathTransform' defined // later in this sample. XmlDsigXPathTransform XPathTransform = CreateXPathTransform(XPathString); // Add the transform to the reference. reference.AddTransform(XPathTransform); // 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)); // 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 the XML that represents the transform. private static XmlDsigXPathTransform CreateXPathTransform(string XPathString) { // Create a new XMLDocument object. XmlDocument doc = new XmlDocument(); // Create a new XmlElement. XmlElement xPathElem = doc.CreateElement("XPath"); // Set the element text to the value // of the XPath string. xPathElem.InnerText = XPathString; // Create a new XmlDsigXPathTransform object. XmlDsigXPathTransform xForm = new XmlDsigXPathTransform(); // Load the XPath XML from the element. xForm.LoadInnerXml(xPathElem.SelectNodes(".")); // Return the XML that represents the transform. return xForm; } // 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, "", "MyXML", "Don't_Sign"); // Append the node to the document. document.AppendChild(node); // Create a new XmlNode object. XmlNode subnode = document.CreateNode(XmlNodeType.Element, "", "TempElement", "Sign"); // Add some text to the node. subnode.InnerText = "Here is some data to sign."; // Append the node to the document. document.DocumentElement.AppendChild(subnode); // Save the XML document to the file name specified. XmlTextWriter xmltw = new XmlTextWriter(FileName, new UTF8Encoding(false)); document.WriteTo(xmltw); xmltw.Close(); } }
// // This example signs an XML file using an // envelope signature. It then verifies the // signed XML. // #using <System.Xml.dll> #using <System.Security.dll> #using <System.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; // Create the XML that represents the transform. static XmlDsigXPathTransform^ CreateXPathTransform( String^ XPathString ) { // Create a new XMLDocument object. XmlDocument^ doc = gcnew XmlDocument; // Create a new XmlElement. XmlElement^ xPathElem = doc->CreateElement( L"XPath" ); // Set the element text to the value // of the XPath string. xPathElem->InnerText = XPathString; // Create a new XmlDsigXPathTransform object. XmlDsigXPathTransform^ xForm = gcnew XmlDsigXPathTransform; // Load the XPath XML from the element. xForm->LoadInnerXml( xPathElem->SelectNodes( L"." ) ); // Return the XML that represents the transform. return xForm; } // Sign an XML file and save the signature in a new file. static void SignXmlFile( String^ FileName, String^ SignedFileName, RSA^ Key, String^ XPathString ) { // 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 it's 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 = L""; // Create an XmlDsigXPathTransform object using // the helper method 'CreateXPathTransform' defined // later in this sample. XmlDsigXPathTransform^ XPathTransform = CreateXPathTransform( XPathString ); // Add the transform to the reference. reference->AddTransform( XPathTransform ); // 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( dynamic_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 ) ); // 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. static 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( L"Signature" ); // Load the signature node. signedXml->LoadXml( dynamic_cast<XmlElement^>(nodeList->Item( 0 )) ); // Check the signature and return the result. return signedXml->CheckSignature(); } // Create example data to sign. static void CreateSomeXml( String^ FileName ) { // Create a new XmlDocument object. XmlDocument^ document = gcnew XmlDocument; // Create a new XmlNode object. XmlNode^ node = document->CreateNode( XmlNodeType::Element, L"", L"MyXML", L"Don't_Sign" ); // Append the node to the document. document->AppendChild( node ); // Create a new XmlNode object. XmlNode^ subnode = document->CreateNode( XmlNodeType::Element, L"", L"TempElement", L"Sign" ); // Add some text to the node. subnode->InnerText = L"Here is some data to sign."; // Append the node to the document. document->DocumentElement->AppendChild( subnode ); // Save the XML document to the file name specified. XmlTextWriter^ xmltw = gcnew XmlTextWriter( FileName,gcnew UTF8Encoding( false ) ); document->WriteTo( xmltw ); xmltw->Close(); } int main() { // Generate a signing key. RSACryptoServiceProvider^ Key = gcnew RSACryptoServiceProvider; try { // Create an XML file to sign. CreateSomeXml( L"Example.xml" ); Console::WriteLine( L"New XML file created." ); // Sign the XML that was just created and save it in a // new file. SignXmlFile( L"Example.xml", L"SignedExample.xml", Key, L"ancestor-or-self::TempElement" ); Console::WriteLine( L"XML file signed." ); // Verify the signature of the signed XML. Console::WriteLine( L"Verifying signature..." ); bool result = VerifyXmlFile( L"SignedExample.xml" ); // Display the results of the signature verification to \ // the console. if ( result ) { Console::WriteLine( L"The XML signature is valid." ); } else { Console::WriteLine( L"The XML signature is not valid." ); } } catch ( CryptographicException^ e ) { Console::WriteLine( e->Message ); } finally { Key->Clear(); } return 1; }
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
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