X509IssuerSerial プロパティ
X509IssuerSerial メソッド

名前 | 説明 | |
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![]() | Equals | オーバーロードされます。 ( ValueType から継承されます。) |
![]() | GetHashCode | このインスタンスのハッシュ コードを返します。 ( ValueType から継承されます。) |
![]() | 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。) |
![]() | 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。) |
![]() | ToString | このインスタンスの完全修飾型名を返します。 ( ValueType から継承されます。) |

名前 | 説明 | |
---|---|---|
![]() | 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。) |
![]() | 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。) |

X509IssuerSerial メンバ
XML デジタル署名の <X509IssuerSerial> 要素を表します。
X509IssuerSerial データ型で公開されるメンバを以下の表に示します。


名前 | 説明 | |
---|---|---|
![]() | Equals | オーバーロードされます。 ( ValueType から継承されます。) |
![]() | GetHashCode | このインスタンスのハッシュ コードを返します。 (ValueType から継承されます。) |
![]() | 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。) |
![]() | 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。) |
![]() | ToString | このインスタンスの完全修飾型名を返します。 (ValueType から継承されます。) |

名前 | 説明 | |
---|---|---|
![]() | 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。) |
![]() | 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。) |

X509IssuerSerial 構造体
アセンブリ: System.Security (system.security.dll 内)


X509IssuerSerial 構造体は、XML デジタル署名仕様に定義されている XML デジタル署名の <X509IssuerSerial> 要素を表します。<X509IssuerSerial> 要素は、X.509v3 証明書の発行者の識別名とシリアル番号のペアを含む <X509Data> 要素のサブ要素です。識別名とシリアル番号のペアは、特定の X.509v3 証明書を識別するために使用されます。
X.509 証明書の発行者は、X.509 証明書を発行した証明機関の名前です。証明機関は、発行する各証明書に識別の目的で一意のシリアル番号を割り当てます。
X509IssuerSerial 構造体は、KeyInfoX509Data クラスを使用するときに証明書の発行者の識別名とシリアル番号のペアを指定するために使用します。IssuerSerials プロパティを使用すると、X509IssuerSerial 構造体を KeyInfoX509Data クラスに追加できます。また、AddIssuerSerial メソッドを使用すると、X.509 証明書の発行者の識別名とシリアル番号のペアを表す文字列値を追加できます。
<X509IssuerSerial> 要素の詳細については、www.w3.org/TR/xmldsig-core/ の W3C (World Wide Web Consortium) 仕様を参照してください。

証明書ストアの X.509 証明書を使用して、XML ドキュメントの署名および検査を行う方法を次のコード例に示します。この例では、X509IssuerSerial オブジェクトを使用して署名済みドキュメントにキー情報を保存します。
' ' This example signs an XML file using an ' envelope signature. It then verifies the ' signed XML. ' ' You must have a certificate with a subject name ' of "CN=XMLDSIG_Test" in the "My" certificate store. ' ' Run the following command to create a certificate ' and place it in the store. ' makecert -r -pe -n "CN=XMLDSIG_Test" -b 01/01/2005 -e 01/01/2010 -sky signing -ss my Imports System Imports System.Security.Cryptography Imports System.Security.Cryptography.Xml Imports System.Security.Cryptography.X509Certificates Imports System.Text Imports System.Xml Module SignVerifyEnvelope Sub Main(ByVal args() As String) Dim Certificate As String = "CN=XMLDSIG_Test" 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", Certificate) Console.WriteLine("XML file signed.") If VerifyXmlFile("SignedExample.xml", Certificate) 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. Sub SignXmlFile(ByVal FileName As String, ByVal SignedFileName As String, ByVal SubjectName As String) If Nothing = FileName Then Throw New ArgumentNullException("FileName") End If If Nothing = SignedFileName Then Throw New ArgumentNullException("SignedFileName") End If If Nothing = SubjectName Then Throw New ArgumentNullException("SubjectName") End If ' Load the certificate from the certificate store. Dim cert As X509Certificate2 = GetCertificateBySubject(SubjectName) ' 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 = cert.PrivateKey ' 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) ' Create a new KeyInfo object. Dim keyInfo As New KeyInfo() ' Load the certificate into a KeyInfoX509Data object ' and add it to the KeyInfo object. ' Create an X509IssuerSerial object and add it to the ' KeyInfoX509Data object. Dim kdata As New KeyInfoX509Data(cert) Dim xserial As X509IssuerSerial xserial.IssuerName = cert.IssuerName.ToString() xserial.SerialNumber = cert.SerialNumber kdata.AddIssuerSerial(xserial.IssuerName, xserial.SerialNumber) keyInfo.AddClause(kdata) ' Add the KeyInfo object to the SignedXml object. 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)) Try doc.WriteTo(xmltw) Finally xmltw.Close() End Try End Sub ' Verify the signature of an XML file against an asymetric ' algorithm and return the result. Function VerifyXmlFile(ByVal FileName As String, ByVal CertificateSubject As String) As [Boolean] ' Check the args. If Nothing = FileName Then Throw New ArgumentNullException("FileName") End If If Nothing = CertificateSubject Then Throw New ArgumentNullException("CertificateSubject") End If ' Load the certificate from the store. Dim cert As X509Certificate2 = GetCertificateBySubject(CertificateSubject) ' Create a new XML document. Dim xmlDocument As New XmlDocument() ' Load the passed XML file into the document. xmlDocument.Load(FileName) ' 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(cert, True) End Function Function GetCertificateBySubject(ByVal CertificateSubject As String) As X509Certificate2 ' Check the args. If Nothing = CertificateSubject Then Throw New ArgumentNullException("CertificateSubject") End If ' Load the certificate from the certificate store. Dim cert As X509Certificate2 = Nothing Dim store As New X509Store("My", StoreLocation.CurrentUser) Try ' Open the store. store.Open(OpenFlags.ReadOnly Or OpenFlags.OpenExistingOnly) ' Get the certs from the store. Dim CertCol As X509Certificate2Collection = store.Certificates ' Find the certificate with the specified subject. Dim c As X509Certificate2 For Each c In CertCol If c.Subject = CertificateSubject Then cert = c Exit For End If Next c ' Throw an exception of the certificate was not found. If cert Is Nothing Then Throw New CryptographicException("The certificate could not be found.") End If Finally ' Close the store even if an exception was thrown. store.Close() End Try Return cert End Function ' Create example data to sign. Sub CreateSomeXml(ByVal FileName As String) ' Check the args. If Nothing = FileName Then Throw New ArgumentNullException("FileName") End If ' 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)) Try document.WriteTo(xmltw) Finally xmltw.Close() End Try End Sub End Module ' This code example displays the following to the console: ' ' New XML file created. ' XML file signed. ' The XML signature is valid.
// // This example signs an XML file using an // envelope signature. It then verifies the // signed XML. // // You must have a certificate with a subject name // of "CN=XMLDSIG_Test" in the "My" certificate store. // // Run the following command to create a certificate // and place it in the store. // makecert -r -pe -n "CN=XMLDSIG_Test" -b 01/01/2005 -e 01/01/2010 -sky signing -ss my using System; using System.Security.Cryptography; using System.Security.Cryptography.Xml; using System.Security.Cryptography.X509Certificates; using System.Text; using System.Xml; public class SignVerifyEnvelope { public static void Main(String[] args) { string Certificate = "CN=XMLDSIG_Test"; 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", Certificate); Console.WriteLine("XML file signed."); if (VerifyXmlFile("SignedExample.xml", Certificate)) { 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, string SubjectName) { if (null == FileName) throw new ArgumentNullException("FileName"); if (null == SignedFileName) throw new ArgumentNullException("SignedFileName"); if (null == SubjectName) throw new ArgumentNullException("SubjectName"); // Load the certificate from the certificate store. X509Certificate2 cert = GetCertificateBySubject(SubjectName); // 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 = cert.PrivateKey; // 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); // Create a new KeyInfo object. KeyInfo keyInfo = new KeyInfo(); // Load the certificate into a KeyInfoX509Data object // and add it to the KeyInfo object. // Create an X509IssuerSerial object and add it to the // KeyInfoX509Data object. KeyInfoX509Data kdata = new KeyInfoX509Data(cert); X509IssuerSerial xserial; xserial.IssuerName = cert.IssuerName.ToString(); xserial.SerialNumber = cert.SerialNumber; kdata.AddIssuerSerial(xserial.IssuerName, xserial.SerialNumber); keyInfo.AddClause(kdata); // Add the KeyInfo object to the SignedXml object. 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. using (XmlTextWriter xmltw = new XmlTextWriter(SignedFileName, new UTF8Encoding(false))) { doc.WriteTo(xmltw); xmltw.Close(); } } // Verify the signature of an XML file against an asymetric // algorithm and return the result. public static Boolean VerifyXmlFile(String FileName, String CertificateSubject) { // Check the args. if (null == FileName) throw new ArgumentNullException("FileName"); if (null == CertificateSubject) throw new ArgumentNullException("CertificateSubject"); // Load the certificate from the store. X509Certificate2 cert = GetCertificateBySubject(CertificateSubject); // Create a new XML document. XmlDocument xmlDocument = new XmlDocument(); // Load the passed XML file into the document. xmlDocument.Load(FileName); // 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(cert, true); } public static X509Certificate2 GetCertificateBySubject(string CertificateSubject) { // Check the args. if (null == CertificateSubject) throw new ArgumentNullException("CertificateSubject"); // Load the certificate from the certificate store. X509Certificate2 cert = null; X509Store store = new X509Store("My", StoreLocation.CurrentUser); try { // Open the store. store.Open(OpenFlags.ReadOnly | OpenFlags.OpenExistingOnly); // Get the certs from the store. X509Certificate2Collection CertCol = store.Certificates; // Find the certificate with the specified subject. foreach (X509Certificate2 c in CertCol) { if (c.Subject == CertificateSubject) { cert = c; break; } } // Throw an exception of the certificate was not found. if (cert == null) { throw new CryptographicException("The certificate could not be found."); } } finally { // Close the store even if an exception was thrown. store.Close(); } return cert; } // Create example data to sign. public static void CreateSomeXml(string FileName) { // Check the args. if (null == FileName) throw new ArgumentNullException("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. using (XmlTextWriter xmltw = new XmlTextWriter(FileName, new UTF8Encoding(false))) { document.WriteTo(xmltw); xmltw.Close(); } } } // This code example displays the following to the console: // // New XML file created. // XML file signed. // The XML signature is valid.


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