CipherReference コンストラクタとは? わかりやすく解説

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CipherReference コンストラクタ (String)

メモ : このコンストラクタは、.NET Framework version 2.0新しく追加されたものです。

指定した URI (Uniform Resource Identifier) を使用して、CipherReference クラス新しインスタンス初期化します。

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

public CipherReference (
    string uri
)
public:
CipherReference (
    String^ uri
)
public CipherReference (
    String uri
)
public function CipherReference (
    uri : String
)

パラメータ

uri

暗号化されたデータを指す URI (Uniform Resource Identifier)。

解説解説

このコンストラクタは、暗号化されたデータを指す URI (Uniform Resource Identifier) を使用してCipherReference オブジェクト作成します。このオブジェクトは、CipherData オブジェクト参照情報提供するために使用されます。

URI使用して暗号化されたデータ格納している XML ファイル指定できます次に例を示します

String uri = "http://www.woodgrovebank.com/document.xml";

また、部分的な URI使用すると、XML ドキュメント一部だけを暗号化することを指定できます。たとえば次の XML コード例に示すように、document.xml という名前の XML ドキュメント2 つMyForm 要素含まれているとします

<MyForm Id='Form1'>

<! -- Form data here -->

</MyForm>

<MyForm Id='Form2'>

<! -- Form data here -->

</MyForm>

次のような URI使用する場合は、Form2内容だけを暗号化できます

String uri = "http://www.woodgrovebank.com/document.xml#Form2";

使用例使用例

CipherReference新しインスタンス作成するコード例次に示します

Imports System
Imports System.Security.Cryptography.Xml
Imports System.Xml
Imports System.IO


'/ This sample used the EncryptedData class to create a EncryptedData
 element
'/ and write it to an XML file. It demonstrates the use of CipherReference.
Module Module1

    Sub Main()
        ' Create a URI string.
        Dim uri As String
 = "http://www.woodgrovebank.com/document.xml"
        ' Create a Base64 transform. The input content retrieved from
 the
        ' URI should be Base64-decoded before other processing.
        Dim base64 As Transform = New
 XmlDsigBase64Transform
        Dim tc As New TransformChain
        tc.Add(base64)
        ' Create <CipherReference> information.
        Dim reference As CipherReference =
 New CipherReference(uri, tc)

        ' Create a new CipherData object.
        ' Note that you cannot assign both a CipherReference and a CipherValue
        ' to a CipherData object.
        Dim cd As CipherData = New
 CipherData(Reference)

        ' Create a new EncryptedData object.
        Dim ed As New EncryptedData

        'Add an encryption method to the object.
        ed.Id = "ED"
        ed.EncryptionMethod = New EncryptionMethod("http://www.w3.org/2001/04/xmlenc#aes128-cbc")
        ed.CipherData = cd

        'Add key information to the object.
        Dim ki As New KeyInfo
        ki.AddClause(New KeyInfoRetrievalMethod("#EK",
 "http://www.w3.org/2001/04/xmlenc#EncryptedKey"))
        ed.KeyInfo = ki

        ' Create new XML document and put encrypted data into it.
        Dim doc As New XmlDocument
        Dim encryptionPropertyElement As XmlElement
 = CType(doc.CreateElement("EncryptionProperty",
 EncryptedXml.XmlEncNamespaceUrl), XmlElement)
        Dim ep As New EncryptionProperty(encryptionPropertyElement)
        ed.AddProperty(ep)

        ' Output the resulting XML information into a file.
        Dim path As String
 = "c:\test\MyTest.xml"
        File.WriteAllText(path, ed.GetXml().OuterXml)
    End Sub

End Module
using System;
using System.Security.Cryptography.Xml;
using System.Xml;
using System.IO;

/// This sample used the EncryptedData class to create an encrypted
 data element
/// and write it to an XML file. It demonstrates the use of CipherReference.
namespace EncryptedDataSample
{
    class Sample1
    {
        [STAThread]
        static void Main(string[]
 args)
        {
            //Create a URI string.
            String uri = "http://www.woodgrovebank.com/document.xml";
            // Create a Base64 transform. The input content retrieved
 from the
            // URI should be Base64-decoded before other processing.
            Transform base64 = new XmlDsigBase64Transform();
            //Create a transform chain and add the transform to it.
            TransformChain tc = new TransformChain();
            tc.Add(base64);
            //Create <CipherReference> information.
            CipherReference reference = new CipherReference(uri,
 tc);

            // Create a new CipherData object using the CipherReference
 information.
            // Note that you cannot assign both a CipherReference and
 a CipherValue
            // to a CipherData object.
            CipherData cd = new CipherData(reference);

            // Create a new EncryptedData object.
            EncryptedData ed = new EncryptedData();

            //Add an encryption method to the object.
            ed.Id = "ED";
            ed.EncryptionMethod = new EncryptionMethod("http://www.w3.org/2001/04/xmlenc#aes128-cbc");
            ed.CipherData = cd;

            //Add key information to the object.
            KeyInfo ki = new KeyInfo();
            ki.AddClause(new KeyInfoRetrievalMethod("#EK",
 "http://www.w3.org/2001/04/xmlenc#EncryptedKey"));
            ed.KeyInfo = ki;

            // Create new XML document and put encrypted data into it.
            XmlDocument doc = new XmlDocument();
            XmlElement encryptionPropertyElement = (XmlElement)doc.CreateElement("EncryptionProperty",
 EncryptedXml.XmlEncNamespaceUrl);
            EncryptionProperty ep = new EncryptionProperty(encryptionPropertyElement);
            ed.AddProperty(ep);

            // Output the resulting XML information into a file.
            try
            {
                string path = @"c:\test\MyTest.xml";

                File.WriteAllText(path, ed.GetXml().OuterXml);
            }
            catch (IOException e)
            {
                Console.WriteLine("File IO error. {0}", e);
            }

        }
    }
}
#using <System.Xml.dll>
#using <System.Security.dll>
#using <System.dll>

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

/// This sample used the EncryptedData class to create an encrypted
 data element
/// and write it to an XML file. It demonstrates the use of CipherReference.

[STAThread]
int main()
{
   
   //Create a URI string.
   String^ uri = "http://www.woodgrovebank.com/document.xml";
   
   // Create a Base64 transform. The input content retrieved from the
   // URI should be Base64-decoded before other processing.
   Transform^ base64 = gcnew XmlDsigBase64Transform;
   
   //Create a transform chain and add the transform to it.
   TransformChain^ tc = gcnew TransformChain;
   tc->Add( base64 );
   
   //Create <CipherReference> information.
   CipherReference ^ reference = gcnew CipherReference( uri,tc );
   
   // Create a new CipherData object using the CipherReference information.
   // Note that you cannot assign both a CipherReference and a CipherValue
   // to a CipherData object.
   CipherData ^ cd = gcnew CipherData( reference );
   
   // Create a new EncryptedData object.
   EncryptedData^ ed = gcnew EncryptedData;
   
   //Add an encryption method to the object.
   ed->Id = "ED";
   ed->EncryptionMethod = gcnew EncryptionMethod( "http://www.w3.org/2001/04/xmlenc#aes128-cbc"
 );
   ed->CipherData = cd;
   
   //Add key information to the object.
   KeyInfo^ ki = gcnew KeyInfo;
   ki->AddClause( gcnew KeyInfoRetrievalMethod( "#EK","http://www.w3.org/2001/04/xmlenc#EncryptedKey"
 ) );
   ed->KeyInfo = ki;
   
   // Create new XML document and put encrypted data into it.
   XmlDocument^ doc = gcnew XmlDocument;
   XmlElement^ encryptionPropertyElement = dynamic_cast<XmlElement^>(doc->CreateElement(
 "EncryptionProperty", EncryptedXml::XmlEncNamespaceUrl ));
   EncryptionProperty ^ ep = gcnew EncryptionProperty( encryptionPropertyElement
 );
   ed->AddProperty( ep );
   
   // Output the resulting XML information into a file.
   try
   {
      String^ path = "c:\\test\\MyTest.xml";
      File::WriteAllText( path, ed->GetXml()->OuterXml );
   }
   catch ( IOException^ e ) 
   {
      Console::WriteLine( "File IO error. {0}", e );
   }

}

package EncryptedDataSample;

import System.*;
import System.Security.Cryptography.Xml.*;
import System.Xml.*;
import System.IO.*;

/// This sample used the EncryptedData class to create an encrypted
 data element
/// and write it to an XML file. It demonstrates the use of CipherReference.
class Sample1
{
    /** @attribute STAThread()
     */
    public static void main(String[]
 args)
    {
        //Create a URI string.
        String uri = "http://www.woodgrovebank.com/document.xml";
        // Create a Base64 transform. The input content retrieved from
 the
        // URI should be Base64-decoded before other processing.
        Transform base64 = new XmlDsigBase64Transform();
        //Create a transform chain and add the transform to it.
        TransformChain tc = new TransformChain();
        tc.Add(base64);
        //Create <CipherReference> information.
        CipherReference reference = new CipherReference(uri, tc);
        // Create a new CipherData object using the CipherReference
 information.
        // Note that you cannot assign both a CipherReference and a
 CipherValue
        // to a CipherData object.
        CipherData cd = new CipherData(reference);
        // Create a new EncryptedData object.
        EncryptedData ed = new EncryptedData();
        //Add an encryption method to the object.
        ed.set_Id("ED");
        ed.set_EncryptionMethod(new EncryptionMethod(
            "http://www.w3.org/2001/04/xmlenc#aes128-cbc"));
        ed.set_CipherData(cd);
        //Add key information to the object.
        KeyInfo ki = new KeyInfo();
        ki.AddClause(new KeyInfoRetrievalMethod("#EK",
 
            "http://www.w3.org/2001/04/xmlenc#EncryptedKey"));
        ed.set_KeyInfo(ki);
        // Create new XML document and put encrypted data into it.
        XmlDocument doc = new XmlDocument();
        XmlElement encryptionPropertyElement = (XmlElement)doc.CreateElement(
            "EncryptionProperty", EncryptedXml.XmlEncNamespaceUrl);
        EncryptionProperty ep = 
            new EncryptionProperty(encryptionPropertyElement);
        ed.AddProperty(ep);
        // Output the resulting XML information into a file.
        try {
            String path = "c:\\test\\MyTest.xml";

            File.WriteAllText(path, ed.GetXml().get_OuterXml());
        }
        catch (IOException e) {
            Console.WriteLine("File IO error. {0}", e);
        }
    } //main
} //Sample1
プラットフォームプラットフォーム
バージョン情報バージョン情報
参照参照
関連項目
CipherReference クラス
CipherReference メンバ
System.Security.Cryptography.Xml 名前空間

CipherReference コンストラクタ (String, TransformChain)

メモ : このコンストラクタは、.NET Framework version 2.0新しく追加されたものです。

指定した URI (Uniform Resource Identifier) および変換チェーン情報使用して、CipherReference クラス新しインスタンス初期化します。

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

Public Sub New ( _
    uri As String, _
    transformChain As TransformChain _
)
Dim uri As String
Dim transformChain As TransformChain

Dim instance As New CipherReference(uri,
 transformChain)
public CipherReference (
    string uri,
    TransformChain transformChain
)
public:
CipherReference (
    String^ uri, 
    TransformChain^ transformChain
)
public CipherReference (
    String uri, 
    TransformChain transformChain
)
public function CipherReference (
    uri : String, 
    transformChain : TransformChain
)

パラメータ

uri

暗号化されたデータを指す URI (Uniform Resource Identifier)。

transformChain

暗号化されたデータに対して適用する変換記述する TransformChain オブジェクト

解説解説
使用例使用例

CipherReference新しインスタンス作成するコード例次に示します

Imports System
Imports System.Security.Cryptography.Xml
Imports System.Xml
Imports System.IO


'/ This sample used the EncryptedData class to create a EncryptedData
 element
'/ and write it to an XML file. It demonstrates the use of CipherReference.
Module Module1

    Sub Main()
        ' Create a URI string.
        Dim uri As String
 = "http://www.woodgrovebank.com/document.xml"
        ' Create a Base64 transform. The input content retrieved from
 the
        ' URI should be Base64-decoded before other processing.
        Dim base64 As Transform = New
 XmlDsigBase64Transform
        Dim tc As New TransformChain
        tc.Add(base64)
        ' Create <CipherReference> information.
        Dim reference As CipherReference =
 New CipherReference(uri, tc)

        ' Create a new CipherData object.
        ' Note that you cannot assign both a CipherReference and a CipherValue
        ' to a CipherData object.
        Dim cd As CipherData = New
 CipherData(Reference)

        ' Create a new EncryptedData object.
        Dim ed As New EncryptedData

        'Add an encryption method to the object.
        ed.Id = "ED"
        ed.EncryptionMethod = New EncryptionMethod("http://www.w3.org/2001/04/xmlenc#aes128-cbc")
        ed.CipherData = cd

        'Add key information to the object.
        Dim ki As New KeyInfo
        ki.AddClause(New KeyInfoRetrievalMethod("#EK",
 "http://www.w3.org/2001/04/xmlenc#EncryptedKey"))
        ed.KeyInfo = ki

        ' Create new XML document and put encrypted data into it.
        Dim doc As New XmlDocument
        Dim encryptionPropertyElement As XmlElement
 = CType(doc.CreateElement("EncryptionProperty",
 EncryptedXml.XmlEncNamespaceUrl), XmlElement)
        Dim ep As New EncryptionProperty(encryptionPropertyElement)
        ed.AddProperty(ep)

        ' Output the resulting XML information into a file.
        Dim path As String
 = "c:\test\MyTest.xml"
        File.WriteAllText(path, ed.GetXml().OuterXml)
    End Sub

End Module
using System;
using System.Security.Cryptography.Xml;
using System.Xml;
using System.IO;

/// This sample used the EncryptedData class to create an encrypted
 data element
/// and write it to an XML file. It demonstrates the use of CipherReference.
namespace EncryptedDataSample
{
    class Sample1
    {
        [STAThread]
        static void Main(string[]
 args)
        {
            //Create a URI string.
            String uri = "http://www.woodgrovebank.com/document.xml";
            // Create a Base64 transform. The input content retrieved
 from the
            // URI should be Base64-decoded before other processing.
            Transform base64 = new XmlDsigBase64Transform();
            //Create a transform chain and add the transform to it.
            TransformChain tc = new TransformChain();
            tc.Add(base64);
            //Create <CipherReference> information.
            CipherReference reference = new CipherReference(uri,
 tc);

            // Create a new CipherData object using the CipherReference
 information.
            // Note that you cannot assign both a CipherReference and
 a CipherValue
            // to a CipherData object.
            CipherData cd = new CipherData(reference);

            // Create a new EncryptedData object.
            EncryptedData ed = new EncryptedData();

            //Add an encryption method to the object.
            ed.Id = "ED";
            ed.EncryptionMethod = new EncryptionMethod("http://www.w3.org/2001/04/xmlenc#aes128-cbc");
            ed.CipherData = cd;

            //Add key information to the object.
            KeyInfo ki = new KeyInfo();
            ki.AddClause(new KeyInfoRetrievalMethod("#EK",
 "http://www.w3.org/2001/04/xmlenc#EncryptedKey"));
            ed.KeyInfo = ki;

            // Create new XML document and put encrypted data into it.
            XmlDocument doc = new XmlDocument();
            XmlElement encryptionPropertyElement = (XmlElement)doc.CreateElement("EncryptionProperty",
 EncryptedXml.XmlEncNamespaceUrl);
            EncryptionProperty ep = new EncryptionProperty(encryptionPropertyElement);
            ed.AddProperty(ep);

            // Output the resulting XML information into a file.
            try
            {
                string path = @"c:\test\MyTest.xml";

                File.WriteAllText(path, ed.GetXml().OuterXml);
            }
            catch (IOException e)
            {
                Console.WriteLine("File IO error. {0}", e);
            }

        }
    }
}
#using <System.Xml.dll>
#using <System.Security.dll>
#using <System.dll>

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

/// This sample used the EncryptedData class to create an encrypted
 data element
/// and write it to an XML file. It demonstrates the use of CipherReference.

[STAThread]
int main()
{
   
   //Create a URI string.
   String^ uri = "http://www.woodgrovebank.com/document.xml";
   
   // Create a Base64 transform. The input content retrieved from the
   // URI should be Base64-decoded before other processing.
   Transform^ base64 = gcnew XmlDsigBase64Transform;
   
   //Create a transform chain and add the transform to it.
   TransformChain^ tc = gcnew TransformChain;
   tc->Add( base64 );
   
   //Create <CipherReference> information.
   CipherReference ^ reference = gcnew CipherReference( uri,tc );
   
   // Create a new CipherData object using the CipherReference information.
   // Note that you cannot assign both a CipherReference and a CipherValue
   // to a CipherData object.
   CipherData ^ cd = gcnew CipherData( reference );
   
   // Create a new EncryptedData object.
   EncryptedData^ ed = gcnew EncryptedData;
   
   //Add an encryption method to the object.
   ed->Id = "ED";
   ed->EncryptionMethod = gcnew EncryptionMethod( "http://www.w3.org/2001/04/xmlenc#aes128-cbc"
 );
   ed->CipherData = cd;
   
   //Add key information to the object.
   KeyInfo^ ki = gcnew KeyInfo;
   ki->AddClause( gcnew KeyInfoRetrievalMethod( "#EK","http://www.w3.org/2001/04/xmlenc#EncryptedKey"
 ) );
   ed->KeyInfo = ki;
   
   // Create new XML document and put encrypted data into it.
   XmlDocument^ doc = gcnew XmlDocument;
   XmlElement^ encryptionPropertyElement = dynamic_cast<XmlElement^>(doc->CreateElement(
 "EncryptionProperty", EncryptedXml::XmlEncNamespaceUrl ));
   EncryptionProperty ^ ep = gcnew EncryptionProperty( encryptionPropertyElement
 );
   ed->AddProperty( ep );
   
   // Output the resulting XML information into a file.
   try
   {
      String^ path = "c:\\test\\MyTest.xml";
      File::WriteAllText( path, ed->GetXml()->OuterXml );
   }
   catch ( IOException^ e ) 
   {
      Console::WriteLine( "File IO error. {0}", e );
   }

}

package EncryptedDataSample;

import System.*;
import System.Security.Cryptography.Xml.*;
import System.Xml.*;
import System.IO.*;

/// This sample used the EncryptedData class to create an encrypted
 data element
/// and write it to an XML file. It demonstrates the use of CipherReference.
class Sample1
{
    /** @attribute STAThread()
     */
    public static void main(String[]
 args)
    {
        //Create a URI string.
        String uri = "http://www.woodgrovebank.com/document.xml";
        // Create a Base64 transform. The input content retrieved from
 the
        // URI should be Base64-decoded before other processing.
        Transform base64 = new XmlDsigBase64Transform();
        //Create a transform chain and add the transform to it.
        TransformChain tc = new TransformChain();
        tc.Add(base64);
        //Create <CipherReference> information.
        CipherReference reference = new CipherReference(uri, tc);
        // Create a new CipherData object using the CipherReference
 information.
        // Note that you cannot assign both a CipherReference and a
 CipherValue
        // to a CipherData object.
        CipherData cd = new CipherData(reference);
        // Create a new EncryptedData object.
        EncryptedData ed = new EncryptedData();
        //Add an encryption method to the object.
        ed.set_Id("ED");
        ed.set_EncryptionMethod(new EncryptionMethod(
            "http://www.w3.org/2001/04/xmlenc#aes128-cbc"));
        ed.set_CipherData(cd);
        //Add key information to the object.
        KeyInfo ki = new KeyInfo();
        ki.AddClause(new KeyInfoRetrievalMethod("#EK",
 
            "http://www.w3.org/2001/04/xmlenc#EncryptedKey"));
        ed.set_KeyInfo(ki);
        // Create new XML document and put encrypted data into it.
        XmlDocument doc = new XmlDocument();
        XmlElement encryptionPropertyElement = (XmlElement)doc.CreateElement(
            "EncryptionProperty", EncryptedXml.XmlEncNamespaceUrl);
        EncryptionProperty ep = 
            new EncryptionProperty(encryptionPropertyElement);
        ed.AddProperty(ep);
        // Output the resulting XML information into a file.
        try {
            String path = "c:\\test\\MyTest.xml";

            File.WriteAllText(path, ed.GetXml().get_OuterXml());
        }
        catch (IOException e) {
            Console.WriteLine("File IO error. {0}", e);
        }
    } //main
} //Sample1
プラットフォームプラットフォーム
バージョン情報バージョン情報
参照参照
関連項目
CipherReference クラス
CipherReference メンバ
System.Security.Cryptography.Xml 名前空間

CipherReference コンストラクタ

CipherReference クラス新しインスタンス初期化します。

このコンストラクタは、CipherData オブジェクト参照情報提供する CipherReference オブジェクト作成します参照情報では、暗号化されたデータの場所が提供されます。


オーバーロードの一覧オーバーロードの一覧
参照参照

関連項目

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

CipherReference コンストラクタ ()

メモ : このコンストラクタは、.NET Framework version 2.0新しく追加されたものです。

CipherReference クラス新しインスタンス初期化します。

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

Dim instance As New CipherReference
public CipherReference ()
public:
CipherReference ()
public CipherReference ()
public function CipherReference ()
解説解説
使用例使用例

CipherReference新しインスタンス作成するコード例次に示します

Imports System
Imports System.Security.Cryptography.Xml
Imports System.Xml
Imports System.IO


'/ This sample used the EncryptedData class to create a EncryptedData
 element
'/ and write it to an XML file. It demonstrates the use of CipherReference.
Module Module1

    Sub Main()
        ' Create a URI string.
        Dim uri As String
 = "http://www.woodgrovebank.com/document.xml"
        ' Create a Base64 transform. The input content retrieved from
 the
        ' URI should be Base64-decoded before other processing.
        Dim base64 As Transform = New
 XmlDsigBase64Transform
        Dim tc As New TransformChain
        tc.Add(base64)
        ' Create <CipherReference> information.
        Dim reference As CipherReference =
 New CipherReference(uri, tc)

        ' Create a new CipherData object.
        ' Note that you cannot assign both a CipherReference and a CipherValue
        ' to a CipherData object.
        Dim cd As CipherData = New
 CipherData(Reference)

        ' Create a new EncryptedData object.
        Dim ed As New EncryptedData

        'Add an encryption method to the object.
        ed.Id = "ED"
        ed.EncryptionMethod = New EncryptionMethod("http://www.w3.org/2001/04/xmlenc#aes128-cbc")
        ed.CipherData = cd

        'Add key information to the object.
        Dim ki As New KeyInfo
        ki.AddClause(New KeyInfoRetrievalMethod("#EK",
 "http://www.w3.org/2001/04/xmlenc#EncryptedKey"))
        ed.KeyInfo = ki

        ' Create new XML document and put encrypted data into it.
        Dim doc As New XmlDocument
        Dim encryptionPropertyElement As XmlElement
 = CType(doc.CreateElement("EncryptionProperty",
 EncryptedXml.XmlEncNamespaceUrl), XmlElement)
        Dim ep As New EncryptionProperty(encryptionPropertyElement)
        ed.AddProperty(ep)

        ' Output the resulting XML information into a file.
        Dim path As String
 = "c:\test\MyTest.xml"
        File.WriteAllText(path, ed.GetXml().OuterXml)
    End Sub

End Module
using System;
using System.Security.Cryptography.Xml;
using System.Xml;
using System.IO;

/// This sample used the EncryptedData class to create an encrypted
 data element
/// and write it to an XML file. It demonstrates the use of CipherReference.
namespace EncryptedDataSample
{
    class Sample1
    {
        [STAThread]
        static void Main(string[]
 args)
        {
            //Create a URI string.
            String uri = "http://www.woodgrovebank.com/document.xml";
            // Create a Base64 transform. The input content retrieved
 from the
            // URI should be Base64-decoded before other processing.
            Transform base64 = new XmlDsigBase64Transform();
            //Create a transform chain and add the transform to it.
            TransformChain tc = new TransformChain();
            tc.Add(base64);
            //Create <CipherReference> information.
            CipherReference reference = new CipherReference(uri,
 tc);

            // Create a new CipherData object using the CipherReference
 information.
            // Note that you cannot assign both a CipherReference and
 a CipherValue
            // to a CipherData object.
            CipherData cd = new CipherData(reference);

            // Create a new EncryptedData object.
            EncryptedData ed = new EncryptedData();

            //Add an encryption method to the object.
            ed.Id = "ED";
            ed.EncryptionMethod = new EncryptionMethod("http://www.w3.org/2001/04/xmlenc#aes128-cbc");
            ed.CipherData = cd;

            //Add key information to the object.
            KeyInfo ki = new KeyInfo();
            ki.AddClause(new KeyInfoRetrievalMethod("#EK",
 "http://www.w3.org/2001/04/xmlenc#EncryptedKey"));
            ed.KeyInfo = ki;

            // Create new XML document and put encrypted data into it.
            XmlDocument doc = new XmlDocument();
            XmlElement encryptionPropertyElement = (XmlElement)doc.CreateElement("EncryptionProperty",
 EncryptedXml.XmlEncNamespaceUrl);
            EncryptionProperty ep = new EncryptionProperty(encryptionPropertyElement);
            ed.AddProperty(ep);

            // Output the resulting XML information into a file.
            try
            {
                string path = @"c:\test\MyTest.xml";

                File.WriteAllText(path, ed.GetXml().OuterXml);
            }
            catch (IOException e)
            {
                Console.WriteLine("File IO error. {0}", e);
            }

        }
    }
}
#using <System.Xml.dll>
#using <System.Security.dll>
#using <System.dll>

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

/// This sample used the EncryptedData class to create an encrypted
 data element
/// and write it to an XML file. It demonstrates the use of CipherReference.

[STAThread]
int main()
{
   
   //Create a URI string.
   String^ uri = "http://www.woodgrovebank.com/document.xml";
   
   // Create a Base64 transform. The input content retrieved from the
   // URI should be Base64-decoded before other processing.
   Transform^ base64 = gcnew XmlDsigBase64Transform;
   
   //Create a transform chain and add the transform to it.
   TransformChain^ tc = gcnew TransformChain;
   tc->Add( base64 );
   
   //Create <CipherReference> information.
   CipherReference ^ reference = gcnew CipherReference( uri,tc );
   
   // Create a new CipherData object using the CipherReference information.
   // Note that you cannot assign both a CipherReference and a CipherValue
   // to a CipherData object.
   CipherData ^ cd = gcnew CipherData( reference );
   
   // Create a new EncryptedData object.
   EncryptedData^ ed = gcnew EncryptedData;
   
   //Add an encryption method to the object.
   ed->Id = "ED";
   ed->EncryptionMethod = gcnew EncryptionMethod( "http://www.w3.org/2001/04/xmlenc#aes128-cbc"
 );
   ed->CipherData = cd;
   
   //Add key information to the object.
   KeyInfo^ ki = gcnew KeyInfo;
   ki->AddClause( gcnew KeyInfoRetrievalMethod( "#EK","http://www.w3.org/2001/04/xmlenc#EncryptedKey"
 ) );
   ed->KeyInfo = ki;
   
   // Create new XML document and put encrypted data into it.
   XmlDocument^ doc = gcnew XmlDocument;
   XmlElement^ encryptionPropertyElement = dynamic_cast<XmlElement^>(doc->CreateElement(
 "EncryptionProperty", EncryptedXml::XmlEncNamespaceUrl ));
   EncryptionProperty ^ ep = gcnew EncryptionProperty( encryptionPropertyElement
 );
   ed->AddProperty( ep );
   
   // Output the resulting XML information into a file.
   try
   {
      String^ path = "c:\\test\\MyTest.xml";
      File::WriteAllText( path, ed->GetXml()->OuterXml );
   }
   catch ( IOException^ e ) 
   {
      Console::WriteLine( "File IO error. {0}", e );
   }

}

package EncryptedDataSample;

import System.*;
import System.Security.Cryptography.Xml.*;
import System.Xml.*;
import System.IO.*;

/// This sample used the EncryptedData class to create an encrypted
 data element
/// and write it to an XML file. It demonstrates the use of CipherReference.
class Sample1
{
    /** @attribute STAThread()
     */
    public static void main(String[]
 args)
    {
        //Create a URI string.
        String uri = "http://www.woodgrovebank.com/document.xml";
        // Create a Base64 transform. The input content retrieved from
 the
        // URI should be Base64-decoded before other processing.
        Transform base64 = new XmlDsigBase64Transform();
        //Create a transform chain and add the transform to it.
        TransformChain tc = new TransformChain();
        tc.Add(base64);
        //Create <CipherReference> information.
        CipherReference reference = new CipherReference(uri, tc);
        // Create a new CipherData object using the CipherReference
 information.
        // Note that you cannot assign both a CipherReference and a
 CipherValue
        // to a CipherData object.
        CipherData cd = new CipherData(reference);
        // Create a new EncryptedData object.
        EncryptedData ed = new EncryptedData();
        //Add an encryption method to the object.
        ed.set_Id("ED");
        ed.set_EncryptionMethod(new EncryptionMethod(
            "http://www.w3.org/2001/04/xmlenc#aes128-cbc"));
        ed.set_CipherData(cd);
        //Add key information to the object.
        KeyInfo ki = new KeyInfo();
        ki.AddClause(new KeyInfoRetrievalMethod("#EK",
 
            "http://www.w3.org/2001/04/xmlenc#EncryptedKey"));
        ed.set_KeyInfo(ki);
        // Create new XML document and put encrypted data into it.
        XmlDocument doc = new XmlDocument();
        XmlElement encryptionPropertyElement = (XmlElement)doc.CreateElement(
            "EncryptionProperty", EncryptedXml.XmlEncNamespaceUrl);
        EncryptionProperty ep = 
            new EncryptionProperty(encryptionPropertyElement);
        ed.AddProperty(ep);
        // Output the resulting XML information into a file.
        try {
            String path = "c:\\test\\MyTest.xml";

            File.WriteAllText(path, ed.GetXml().get_OuterXml());
        }
        catch (IOException e) {
            Console.WriteLine("File IO error. {0}", e);
        }
    } //main
} //Sample1
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関連項目
CipherReference クラス
CipherReference メンバ
System.Security.Cryptography.Xml 名前空間



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