CipherReference 建構函式

定義

命名空間:: System.Security.Cryptography.Xml

組件:: System.Security.dll

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

初始化 CipherReference 類別的新執行個體。

多載

名稱	Description
CipherReference()	初始化 CipherReference 類別的新執行個體。
CipherReference(String)	使用指定的統一資源識別碼（URI）初始化該類別的新實例 CipherReference 。
CipherReference(String, TransformChain)	使用指定的統一資源識別碼（URI）初始化類別的新實例 CipherReference ，並轉換鏈條資訊。

備註

此建構子會建立 CipherReference 一個物件，提供物件的 CipherData 參考資訊。參考資訊提供加密資料的位置。

CipherReference()

初始化 CipherReference 類別的新執行個體。

public:
 CipherReference();

public CipherReference();

Public Sub New ()

範例

以下程式碼範例建立一個新的實例。CipherReference

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 Example
    {
        [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);
            }
        }
    }
}

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

備註

此建構子會建立 CipherReference 一個物件，提供物件的 CipherData 參考資訊。

適用於

CipherReference(String)

使用指定的統一資源識別碼（URI）初始化該類別的新實例 CipherReference 。

public:
 CipherReference(System::String ^ uri);

public CipherReference(string uri);

new System.Security.Cryptography.Xml.CipherReference : string -> System.Security.Cryptography.Xml.CipherReference

Public Sub New (uri As String)

參數

uri: String

一個指向加密資料的統一資源識別碼（URI）。

範例

以下程式碼範例建立一個新的實例。CipherReference

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 Example
    {
        [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);
            }
        }
    }
}

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

備註

此建構子使用統一資源識別碼（URI）建立 CipherReference 指向加密資料的物件。物件接著用來提供物件的 CipherData 參考資訊。

你可以使用 URI 來指定包含加密資料的 XML 檔案。例如：

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

你也可以使用部分 URI，指定 XML 文件中只有部分要加密。例如，假設一份名為 document.xml 的 XML 文件包含以下 XML 程式碼範例中的兩個 MyForm 元素：

<MyForm Id='Form1'>

<! -- Form data here -->

</MyForm>

<MyForm Id='Form2'>

<! -- Form data here -->

</MyForm>

你可以只加密以下 Form2 URI 中的內容：

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

適用於

CipherReference(String, TransformChain)

使用指定的統一資源識別碼（URI）初始化類別的新實例 CipherReference ，並轉換鏈條資訊。

public:
 CipherReference(System::String ^ uri, System::Security::Cryptography::Xml::TransformChain ^ transformChain);

public CipherReference(string uri, System.Security.Cryptography.Xml.TransformChain transformChain);

new System.Security.Cryptography.Xml.CipherReference : string * System.Security.Cryptography.Xml.TransformChain -> System.Security.Cryptography.Xml.CipherReference

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

參數

uri: String

一個指向加密資料的統一資源識別碼（URI）。

transformChain: TransformChain

一個 TransformChain 描述加密資料 transform to do 的物件。

範例

以下程式碼範例建立一個新的實例。CipherReference

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 Example
    {
        [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);
            }
        }
    }
}

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

備註

此建構器使用統一資源識別碼（URI）及轉換鏈建立 CipherReference 物件，以標示加密資料。物件接著用來提供物件的 CipherData 參考資訊。

適用於

意見反應

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