AsymmetricAlgorithm AsymmetricAlgorithm AsymmetricAlgorithm AsymmetricAlgorithm Class

Definition

Stellt die abstrakte Basisklasse dar, von der alle Implementierungen von asymmetrischen Algorithmen erben müssen.Represents the abstract base class from which all implementations of asymmetric algorithms must inherit.

public ref class AsymmetricAlgorithm abstract : IDisposable
[System.Runtime.InteropServices.ComVisible(true)]
public abstract class AsymmetricAlgorithm : IDisposable
type AsymmetricAlgorithm = class
    interface IDisposable
Public MustInherit Class AsymmetricAlgorithm
Implements IDisposable
Vererbung
AsymmetricAlgorithmAsymmetricAlgorithmAsymmetricAlgorithmAsymmetricAlgorithm
Abgeleitet
Attribute
Implementiert

Beispiele

Im folgenden Codebeispiel wird veranschaulicht, wie zum Implementieren eines benutzerdefinierten asymmetrischen Algorithmus geerbt von der AsymmetricAlgorithm Klasse.The following code example demonstrates how to implement a custom asymmetric algorithm inherited from the AsymmetricAlgorithm class. Veranschaulicht, wie Sie die benutzerdefinierte Klasse zu verwenden, wird eine zusätzliche Klasse bereitgestellt.An additional class is provided to demonstrate how to use the custom class.

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

using namespace System;
using namespace System::Xml;
using namespace System::Text;
using namespace System::Security::Cryptography;
using namespace System::Reflection;

[assembly: AssemblyKeyFile("CustomCrypto.snk")];
[assembly: AssemblyVersion("1.0.0.0")];
[assembly: CLSCompliant(true)];
namespace Contoso
{
    // Define a CustomCrypto class that inherits from the AsymmetricAlgorithm
    // class.
    public ref class CustomCrypto :
        public System::Security::Cryptography::AsymmetricAlgorithm
        {
            // Declare local member variables.
        private:
            CspParameters^ cryptoServiceParameters;
            array<KeySizes^>^ customValidKeySizes;

            // Initialize a CustomCrypto with the default key size of 8.
        public:
            CustomCrypto()
            {
                customValidKeySizes = 
                    gcnew array<KeySizes^>{gcnew KeySizes(8, 64, 8)};
                this->KeySize = 8;
            }

            // Initialize a CustomCrypto with the specified key size.
        public:
            CustomCrypto(int keySize)
            {
                customValidKeySizes = 
                    gcnew array<KeySizes^>{gcnew KeySizes(8, 64, 8)};
                this->KeySize = keySize;
            }

            // Accessor function for keySizes member variable.
        public:
            property array<KeySizes^>^ LegalKeySizes
            {
                virtual array<KeySizes^>^ get() override
                {
                    return (array<KeySizes^>^)customValidKeySizes->Clone();
                }
            }

            // Modify the KeySizeValue property inherited from the Asymmetric
            // class. Prior to setting the value, ensure it falls within the
            // range identified in the local keySizes member variable.
        public:
            property int KeySize
            {
                virtual int get() override
                {
                    return KeySizeValue;
                }

                virtual void set(int value) override
                {
                    for (int i = 0; i < customValidKeySizes->Length; i++)
                    {
                        if (customValidKeySizes[i]->SkipSize == 0)
                        {
                            if (customValidKeySizes[i]->MinSize == value)
                            {
                                KeySizeValue = value;
                                return;
                            }
                        }
                        else
                        {
                            for (int j = customValidKeySizes[i]->MinSize;
                                j <= customValidKeySizes[i]->MaxSize;
                                j += customValidKeySizes[i]->SkipSize)
                            {
                                if (j == value)
                                {
                                    KeySizeValue = value;
                                    return;
                                }
                            }
                        }
                    }

                    // If the key does not fall within the range identified
                    // in the keySizes member variable, throw an exception.
                    throw gcnew CryptographicException("Invalid key size.");
                }
            }

            // Initialize the parameters with default values.
        public:
            void InitializeParameters()
            {
                cryptoServiceParameters = gcnew CspParameters();
                cryptoServiceParameters->ProviderName = "Contoso";
                cryptoServiceParameters->KeyContainerName = "SecurityBin1";
                cryptoServiceParameters->KeyNumber = 1;
                cryptoServiceParameters->ProviderType = 2;
            }

            // Parse specified xmlString for values to populate the CspParams
            // Expected XML schema:
            //      <ProviderName></ProviderName>
            //      <KeyContainerName></KeyContainerName>
            //      <KeyNumber></KeyNumber>
            //      <ProviderType></ProviderType>
        public:
            virtual void FromXmlString(String^ xmlString) override 
            {
                if (xmlString != nullptr)
                {
                    XmlDocument^ document = gcnew XmlDocument();
                    document->LoadXml(xmlString);
                    XmlNode^ firstNode = document->FirstChild;
                    XmlNodeList^ nodeList;

                    // Assemble parameters from values in each XML element.
                    cryptoServiceParameters = gcnew CspParameters();

                    // KeyContainerName is optional.
                    nodeList = 
                        document->GetElementsByTagName("KeyContainerName");
                    if (nodeList->Count > 0)
                    {
                        cryptoServiceParameters->KeyContainerName =
                            nodeList->Item(0)->InnerText;
                    }

                    // KeyNumber is optional.
                    nodeList = document->GetElementsByTagName("KeyNumber");
                    if (nodeList->Count > 0)
                    {
                        cryptoServiceParameters->KeyNumber =
                            Int32::Parse(nodeList->Item(0)->InnerText);
                    }

                    // ProviderName is optional.
                    nodeList = document->GetElementsByTagName("ProviderName");
                    if (nodeList->Count > 0)
                    {
                        cryptoServiceParameters->ProviderName =
                            nodeList->Item(0)->InnerText;
                    }

                    // ProviderType is optional.
                    nodeList = document->GetElementsByTagName("ProviderType");
                    if (nodeList->Count > 0)
                    {
                        cryptoServiceParameters->ProviderType =
                            Int32::Parse(nodeList->Item(0)->InnerText);
                    }
                }
                else
                {
                    throw gcnew ArgumentNullException("xmlString");
                }
            }

            // Create an XML string representation of the parameters in the
            // current customCrypto object.
        public:
            virtual String^ ToXmlString(bool includePrivateParameters) override
            {
                String^ keyContainerName = "";
                String^ keyNumber = "";
                String^ providerName = "";
                String^ providerType = "";

                if (cryptoServiceParameters != nullptr)
                {
                    keyContainerName = 
                        cryptoServiceParameters->KeyContainerName;
                    keyNumber = cryptoServiceParameters->KeyNumber.ToString();
                    providerName = cryptoServiceParameters->ProviderName;
                    providerType = 
                        cryptoServiceParameters->ProviderType.ToString();
                }

                StringBuilder^ sb = gcnew StringBuilder();
                sb->Append("<CustomCryptoKeyValue>");

                sb->Append("<KeyContainerName>");
                sb->Append(keyContainerName);
                sb->Append("</KeyContainerName>");

                sb->Append("<KeyNumber>");
                sb->Append(keyNumber);
                sb->Append("</KeyNumber>");

                sb->Append("<ProviderName>");
                sb->Append(providerName);
                sb->Append("</ProviderName>");

                sb->Append("<ProviderType>");
                sb->Append(providerType);
                sb->Append("</ProviderType>");

                sb->Append("</CustomCryptoKeyValue>");
                return(sb->ToString());
            }

            // Return the name for the key exchange algorithm.
        public:
            property String^ KeyExchangeAlgorithm 
            {
                virtual String^ get() override
                {
                    return "RSA-PKCS1-KeyEx";
                }
            }

            // Retrieves the name of the signature alogrithm.
        public:
            property String^ SignatureAlgorithm
            {
                virtual String^ get() override
                {
                    return "http://www.w3.org/2000/09/xmldsig#rsa-sha1";
                }
            }

            // Required member for implementing the AsymmetricAlgorithm class.
		protected:
			virtual ~CustomCrypto()
			{
			}

            // Call the Create method using the CustomCrypto assembly name.
            // The create function attempts to create a CustomCrypto 
            // object using the assembly name. This functionality requires 
            // modification of the machine.config file. Add the following 
            // section to the configuration element and modify the values 
            // of the cryptoClass to reflect what isinstalled 
            // in your machines GAC.
            //        <cryptoClass CustomCrypto="Contoso.CustomCrypto,
            //          CustomCrypto,
            //          Culture=neutral,
            //          PublicKeyToken=fdb9f9c4851028bf,
            //          Version=1.0.1448.27640" />
            //      <nameEntry name="Contoso.CustomCrypto" 
            //         class="CustomCrypto" />
            //      <nameEntry name="CustomCrypto" class="CustomCrypto" />

        public:
            static CustomCrypto^ Create() 
            {
                return Create("CustomCrypto");
            }

            // Create a CustomCrypto object by calling CrytoConfig's
            // CreateFromName method and casting the type to CustomCrypto.
            // The create function attempts to create a CustomCrypto object 
            // using the assembly name. This functionality requires 
            // modification of the machine.config file. Add the following 
            // section to the configuration element and modify the values 
            // of the cryptoClass to reflect what is installed 
            // in your machines GAC.
            //       <cryptoClass CustomCrypto="Contoso.CustomCrypto,
            //         CustomCrypto,
            //         Culture=neutral,
            //         PublicKeyToken=fdb9f9c4851028bf,
            //         Version=1.0.1448.27640" />
            //     <nameEntry name="Contoso.CustomCrypto" 
            //        class="CustomCrypto" />
            //     <nameEntry name="CustomCrypto" class="CustomCrypto" />

        public:
            static CustomCrypto^ Create(String^ algorithmName) 
            {
                return (CustomCrypto^) 
                    CryptoConfig::CreateFromName(algorithmName);
            }
        };
}
using System;
using System.Xml;
using System.Text;
using System.Security.Cryptography;
using System.Reflection;

[assembly: AssemblyKeyFile("CustomCrypto.snk")]
[assembly: AssemblyVersion("1.0.0.0")]
[assembly: CLSCompliant(true)]
namespace Contoso
{
    // Define a CustomCrypto class that inherits from the AsymmetricAlgorithm
    // class.
    public class CustomCrypto : 
        System.Security.Cryptography.AsymmetricAlgorithm
    {
        // Declare local member variables.
        private CspParameters cspParameters;
        private readonly KeySizes[] keySizes = {new KeySizes(8, 64, 8)};

        // Initialize a CustomCrypto with the default key size of 8.
        public CustomCrypto()
        {
            this.KeySize = 8;
        }

        // Initialize a CustomCrypto with the specified key size.
        public CustomCrypto(int keySize)
        {
            this.KeySize = keySize;
        }

        // Accessor function for keySizes member variable.
        public override KeySizes[] LegalKeySizes 
        { 
            get { return (KeySizes[])keySizes.Clone(); }
        }

        // Modify the KeySizeValue property inherited from the Asymmetric
        // class. Prior to setting the value, ensure it falls within the
        // range identified in the local keySizes member variable.
        public override int KeySize 
        {
            get { return KeySizeValue; }
            set
            {
                for (int i=0; i < keySizes.Length; i++)
                {
                    if (keySizes[i].SkipSize == 0) 
                    {
                        if (keySizes[i].MinSize == value)
                        {
                            KeySizeValue = value;
                            return;
                        }
                    }
                    else
                    {
                        for (int j = keySizes[i].MinSize;
                            j <= keySizes[i].MaxSize;
                            j += keySizes[i].SkipSize)
                        {
                            if (j == value)
                            {
                                KeySizeValue = value;
                                return;
                            }
                        }
                    }
                }

                // If the key does not fall within the range identified 
                // in the keySizes member variable, throw an exception.
                throw new CryptographicException("Invalid key size.");
            }
        }

        // Initialize the parameters with default values.
        public void InitializeParameters()
        {
            cspParameters = new CspParameters();
            cspParameters.ProviderName = "Contoso";
            cspParameters.KeyContainerName = "SecurityBin1";
            cspParameters.KeyNumber = 1;
            cspParameters.ProviderType = 2;
        }

        // Parse specified xmlString for values to populate the CspParams
        // Expected XML schema:
        //      <ProviderName></ProviderName>
        //      <KeyContainerName></KeyContainerName>
        //      <KeyNumber></KeyNumber>
        //      <ProviderType></ProviderType>
        public override void FromXmlString(string xmlString)
        {
            if (xmlString != null)
            {
                XmlDocument doc = new XmlDocument();
                doc.LoadXml(xmlString);
                XmlNode firstNode = doc.FirstChild;
                XmlNodeList nodeList;

                // Assemble parameters from values in each XML element.
                cspParameters = new CspParameters();

                // KeyContainerName is optional.
                nodeList = doc.GetElementsByTagName("KeyContainerName");
                string keyName = nodeList.Item(0).InnerText;
                if (keyName != null) 
                {
                    cspParameters.KeyContainerName = keyName;
                }

                // KeyNumber is optional.
                nodeList = doc.GetElementsByTagName("KeyNumber");
                string keyNumber = nodeList.Item(0).InnerText;
                if (keyNumber != null) 
                {
                    cspParameters.KeyNumber = Int32.Parse(keyNumber);
                }

                // ProviderName is optional.
                nodeList = doc.GetElementsByTagName("ProviderName");
                string providerName = nodeList.Item(0).InnerText;
                if (providerName != null) 
                {
                    cspParameters.ProviderName = providerName;
                }

                // ProviderType is optional.
                nodeList = doc.GetElementsByTagName("ProviderType");
                string providerType = nodeList.Item(0).InnerText;
                if (providerType != null) 
                {
                    cspParameters.ProviderType = Int32.Parse(providerType);
                }
            }
            else
            {
                throw new ArgumentNullException("xmlString");
            }
        }

        // Create an XML string representation of the parameters in the
        // current customCrypto object.
        public override string ToXmlString(bool includePrivateParameters)
        {
            string keyContainerName = "";
            string keyNumber = "";
            string providerName = "";
            string providerType = "";

            if (cspParameters != null)
            {
                keyContainerName = cspParameters.KeyContainerName;
                keyNumber = cspParameters.KeyNumber.ToString();
                providerName = cspParameters.ProviderName;
                providerType = cspParameters.ProviderType.ToString();
            }

            StringBuilder sb = new StringBuilder();
            sb.Append("<CustomCryptoKeyValue>");

            sb.Append("<KeyContainerName>");
            sb.Append(keyContainerName);
            sb.Append("</KeyContainerName>");

            sb.Append("<KeyNumber>");
            sb.Append(keyNumber);
            sb.Append("</KeyNumber>");

            sb.Append("<ProviderName>");
            sb.Append(providerName);
            sb.Append("</ProviderName>");

            sb.Append("<ProviderType>");
            sb.Append(providerType);
            sb.Append("</ProviderType>");

            sb.Append("</CustomCryptoKeyValue>");
            return(sb.ToString());
        }

        // Return the name for the key exchange algorithm.
        public override string KeyExchangeAlgorithm
        {
            get {return "RSA-PKCS1-KeyEx";}
        }

        // Retrieves the name of the signature alogrithm.
        public override string SignatureAlgorithm 
        {
            get {return "http://www.w3.org/2000/09/xmldsig#rsa-sha1";}
        }

        // Required member for implementing the AsymmetricAlgorithm class.
        protected override void Dispose(bool disposing) {}

        // Call the Create method using the CustomCrypto assembly name.
        // The create function attempts to create a CustomCrypto object using
        // the assembly name. This functionality requires modification of the
        // machine.config file. Add the following section to the configuration
        // element and modify the values of the cryptoClass to reflect what is
        // installed in your machines GAC.
        //        <cryptoClass CustomCrypto="Contoso.CustomCrypto, 
        //          CustomCrypto, 
        //          Culture=neutral, 
        //          PublicKeyToken=fdb9f9c4851028bf, 
        //          Version=1.0.1448.27640" />
        //      <nameEntry name="Contoso.CustomCrypto" class="CustomCrypto" />
        //      <nameEntry name="CustomCrypto" class="CustomCrypto" />
        new static public CustomCrypto Create() 
        {
            return Create("CustomCrypto");
        }

        // Create a CustomCrypto object by calling CrytoConfig's
        // CreateFromName method and casting the type to CustomCrypto.
        // The create function attempts to create a CustomCrypto object using
        // the assembly name. This functionality requires modification of the
        // machine.config file. Add the following section to the configuration
        // element and modify the values of the cryptoClass to reflect what is
        // installed in your machines GAC.
        //       <cryptoClass CustomCrypto="Contoso.CustomCrypto, 
        //         CustomCrypto, 
        //         Culture=neutral, 
        //         PublicKeyToken=fdb9f9c4851028bf, 
        //         Version=1.0.1448.27640" />
        //     <nameEntry name="Contoso.CustomCrypto" class="CustomCrypto" />
        //     <nameEntry name="CustomCrypto" class="CustomCrypto" />
        new static public CustomCrypto Create(String algorithmName) 
        {
            return (CustomCrypto) CryptoConfig.CreateFromName(algorithmName);
        }
    }
    class CustomCryptoImpl
    {
        [STAThread]
        static void Main(string[] args)
        {
            // Construct a CustomCrypto object and initialize its
            // CspParameters.
            CustomCrypto customCrypto = new CustomCrypto();
            customCrypto.InitializeParameters();

            // Display properties of the current customCrypto object.
            Console.WriteLine("*** CustomCrypto created with default " + 
                "parameters:");
            DisplayProperties(customCrypto);

            // Release all the resources used by this instance of 
            // CustomCrytpo.
            customCrypto.Clear();

            customCrypto = new CustomCrypto(64);
            // Create new parameters and set them by using the FromXmlString
            // method.
            string parameterXml = "<CustomCryptoKeyValue>";
            parameterXml += "<ProviderName>Contoso</ProviderName>";
            parameterXml += "<KeyContainerName>SecurityBin2";
            parameterXml += "</KeyContainerName>";
            parameterXml += "<KeyNumber>1</KeyNumber>";
            parameterXml += "<ProviderType>2</ProviderType>";
            parameterXml += "</CustomCryptoKeyValue>";
            customCrypto.FromXmlString(parameterXml);

            // Display the properties of a customCrypto object created with
            // custom parameters.
            Console.WriteLine("\n*** " + 
                "CustomCrypto created with custom parameters:");
            DisplayProperties(customCrypto);

            // Create an object by using the assembly name.
            try
            {
                CustomCrypto myCryptoA = CustomCrypto.Create("CustomCrypto");
                if (myCryptoA != null)
                {
                    Console.Write("\n*** " + 
                        "Successfully created CustomCrytpo from");
                    Console.WriteLine(" the Create method.");

                    DisplayProperties(myCryptoA);
                }
                else
                {
                    Console.Write("Unable to create CustomCrytpo from ");
                    Console.WriteLine(" the Create method.");
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.ToString());
            }
            
            Console.WriteLine("This sample completed successfully; " +
                "press Enter to exit.");
            Console.ReadLine();
        }
        // Display the properties of the specified CustomCrypto object to the
        // console.
        public static void DisplayProperties(CustomCrypto customCrypto)
        {
            try
            {
                // Retrieve the class description for the customCrypto object.
                string classDescription = customCrypto.ToString();

                Console.WriteLine(classDescription);
                Console.Write("KeyExchangeAlgorithm: ");
                Console.WriteLine(customCrypto.KeyExchangeAlgorithm);
                Console.Write("SignatureAlgorithm: ");
                Console.WriteLine(customCrypto.SignatureAlgorithm);
                Console.WriteLine("KeySize: " + customCrypto.KeySize);
                Console.WriteLine("Parameters described in Xml format:");
                Console.WriteLine(customCrypto.ToXmlString(true));

                // Display the MinSize, MaxSize, and SkipSize properties of 
                // each KeySize item in the local keySizes member variable.
                KeySizes[] legalKeySizes = customCrypto.LegalKeySizes;
                if (legalKeySizes.Length > 0)
                {
                    for (int i=0; i < legalKeySizes.Length; i++)
                    {
                        Console.Write("Keysize" + i + " min, max, step: ");
                        Console.Write(legalKeySizes[i].MinSize + ", ");
                        Console.Write(legalKeySizes[i].MaxSize + ", ");
                        Console.WriteLine(legalKeySizes[i].SkipSize + ", ");
                    }
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine("Caught unexpected exception: " + 
                    ex.ToString());
            }
        }
    }
}
//
// This sample produces the following output:
//
// *** CustomCrypto created with default parameters:
// Contoso.vbCustomCrypto
// KeyExchangeAlgorithm: RSA-PKCS1-KeyEx
// SignatureAlgorithm: http://www.w3.org/2000/09/xmldsig#rsa-sha1
// KeySize: 8
// Parameters described in Xml format:
// <CustomCryptoKeyValue><KeyContainerName>SecurityBin1</KeyContainerName>
// <KeyNumber>1</KeyNumber><ProviderName>Contoso</ProviderName>
// <ProviderType>2</ProviderType></CustomCryptoKeyValue>
// Keysize0 min, max, step: 8, 64, 8, 
// 
// *** CustomCrypto created with custom parameters:
// Contoso.vbCustomCrypto
// KeyExchangeAlgorithm: RSA-PKCS1-KeyEx
// SignatureAlgorithm: http://www.w3.org/2000/09/xmldsig#rsa-sha1
// KeySize: 64
// Parameters described in Xml format:
// <CustomCryptoKeyValue><KeyContainerName>SecurityBin2</KeyContainerName>
// <KeyNumber>1</KeyNumber><ProviderName>Contoso</ProviderName>
// <ProviderType>2</ProviderType></CustomCryptoKeyValue>
// Keysize0 min, max, step: 8, 64, 8, 
// Unable to create CustomCrytpo from  the Create method
// This sample completed successfully; press Exit to continue.
Imports System
Imports System.Xml
Imports System.Text
Imports System.Security.Cryptography
Imports System.Reflection

<Assembly: AssemblyKeyFile("CustomCrypto.snk")> 
<Assembly: AssemblyVersion("1.0.0.0")> 
<Assembly: CLSCompliant(True)> 
Namespace Contoso
    ' Define a vbCustomCrypto class that inherits from the AsymmetricAlgorithm
    ' class.
    Class vbCustomCrypto
        Inherits System.Security.Cryptography.AsymmetricAlgorithm

        ' Declare local member variables.
        Private cspParameters As CspParameters
        Private ReadOnly keySizes() As keySizes = {New keySizes(8, 64, 8)}

        ' Initialize a vbCustomCrypto with the default key size of 8.
        Public Sub New()
            Me.KeySize = 8
        End Sub

        ' Initialize a vbCustomCrypto with the specified key size.
        Public Sub New(ByVal keySize As Integer)
            Me.KeySize = keySize
        End Sub

        ' Modify the KeySizeValue property inherited from the Asymmetric
        ' class. Prior to setting the value, ensure it falls within the
        ' range identified in the local keySizes member variable.
        Public Overrides Property KeySize() As Integer
            Get
                Return KeySizeValue
            End Get
            Set(ByVal Value As Integer)
                For i As Int16 = 0 To keySizes.Length - 1 Step i
                    If (keySizes(i).SkipSize.Equals(0)) Then
                        If (keySizes(i).MinSize.Equals(Value)) Then
                            KeySizeValue = Value
                            Return
                        End If
                    Else
                        For j As Integer = keySizes(i).MinSize _
                            To keySizes(i).MaxSize _
                            Step keySizes(i).SkipSize
                            If (j.Equals(Value)) Then
                                KeySizeValue = Value
                                Return
                            End If
                        Next
                    End If
                Next
                ' If the key does not fall within the range identified 
                ' in the keySizes member variable, throw an exception.
                Throw New CryptographicException("Invalid key size.")
            End Set
        End Property
        ' Accessor function for keySizes member variable.
        public Overrides Readonly Property LegalKeySizes as KeySizes()
            Get
                Return keySizes
            End Get
        End Property
        ' Initialize the parameters with default values.
        Public Sub InitializeParameters()
            cspParameters = New CspParameters
            cspParameters.ProviderName = "Contoso"
            cspParameters.KeyContainerName = "SecurityBin1"
            cspParameters.KeyNumber = 1
            cspParameters.ProviderType = 2
        End Sub

        ' Parse specified xmlString for values to populate the CspParams
        ' Expected XML schema:
        '      <ProviderName></ProviderName>
        '      <KeyContainerName></KeyContainerName>
        '      <KeyNumber></KeyNumber>
        '      <ProviderType></ProviderType>
        Public Overrides Sub FromXmlString(ByVal xmlString As String)
            If Not xmlString Is Nothing Then
                Dim doc As New XmlDocument
                doc.LoadXml(xmlString)
                Dim firstNode As XmlNode = doc.FirstChild
                Dim nodeList As XmlNodeList

                ' Assemble parameters from values in each XML element.
                cspParameters = New CspParameters

                ' KeyContainerName is optional.
                nodeList = doc.GetElementsByTagName("KeyContainerName")
                Dim keyName As String = nodeList.Item(0).InnerText
                If Not keyName Is Nothing Then
                    cspParameters.KeyContainerName = keyName
                End If

                ' KeyNumber is optional.
                nodeList = doc.GetElementsByTagName("KeyNumber")
                Dim keyNumber As String = nodeList.Item(0).InnerText
                If Not keyNumber Is Nothing Then
                    cspParameters.KeyNumber = Int32.Parse(keyNumber)
                End If

                ' ProviderName is optional.
                nodeList = doc.GetElementsByTagName("ProviderName")
                Dim providerName As String = nodeList.Item(0).InnerText
                If Not providerName Is Nothing Then
                    cspParameters.ProviderName = providerName
                End If

                ' ProviderType is optional.
                nodeList = doc.GetElementsByTagName("ProviderType")
                Dim providerType As String = nodeList.Item(0).InnerText
                If Not providerType Is Nothing Then
                    cspParameters.ProviderType = Int32.Parse(providerType)
                End If
            Else
                Throw New ArgumentNullException("xmlString")
            End If
        End Sub

        ' Create an XML string representation of the parameters in the current
        ' vbCustomCrypto object.
        Public Overrides Function ToXmlString( _
            ByVal includePrivateParameters As Boolean) As String

            Dim keyContainerName As String = ""
            Dim keyNumber As String = ""
            Dim providerName As String = ""
            Dim providerType As String = ""

            If Not cspParameters Is Nothing Then
                keyContainerName = cspParameters.KeyContainerName
                keyNumber = cspParameters.KeyNumber.ToString()
                providerName = cspParameters.ProviderName
                providerType = cspParameters.ProviderType.ToString()
            End If

            Dim xmlBuilder As New StringBuilder
            xmlBuilder.Append("<CustomCryptoKeyValue>")

            xmlBuilder.Append("<KeyContainerName>")
            xmlBuilder.Append(keyContainerName)
            xmlBuilder.Append("</KeyContainerName>")

            xmlBuilder.Append("<KeyNumber>")
            xmlBuilder.Append(keyNumber)
            xmlBuilder.Append("</KeyNumber>")

            xmlBuilder.Append("<ProviderName>")
            xmlBuilder.Append(providerName)
            xmlBuilder.Append("</ProviderName>")

            xmlBuilder.Append("<ProviderType>")
            xmlBuilder.Append(providerType)
            xmlBuilder.Append("</ProviderType>")

            xmlBuilder.Append("</CustomCryptoKeyValue>")
            Return (xmlBuilder.ToString())
        End Function

        ' Return the name for the key exchange algorithm.
        Public Overrides ReadOnly Property KeyExchangeAlgorithm() As String
            Get
                Return "RSA-PKCS1-KeyEx"
            End Get
        End Property

        ' Retrieves the name of the signature alogrithm.
        Public Overrides ReadOnly Property SignatureAlgorithm() As String
            Get
                Return "http://www.w3.org/2000/09/xmldsig#rsa-sha1"
            End Get
        End Property

        ' Required member for implementing the AsymmetricAlgorithm class.
        Protected Overrides Sub Dispose(ByVal disposing As Boolean)

        End Sub

        ' The create function attempts to create a vbCustomCrypto object using
        ' the assembly name. This functionality requires modification of the
        ' machine.config file. Add the following section to the configuration
        ' element and modify the values of the cryptoClass to reflect what is
        ' installed in your machines GAC.
        '          <cryptoClass vbCustomCrypto="Contoso.vbCustomCrypto, 
        '            vbCustomCrypto, 
        '            Culture=neutral, 
        '            PublicKeyToken=fdb9f9c4851028bf, 
        '            Version=1.0.1448.27640" />
        '        <nameEntry name="Contoso.vbCustomCrypto" 
        '                   class="vbCustomCrypto" />
        '        <nameEntry name="vbCustomCrypto" class="vbCustomCrypto" />
        Public Shadows Function Create() As vbCustomCrypto
            Return Create("vbCustomCrypto")
        End Function

        ' Create a CustomCrypto object by calling CrytoConfig's
        ' CreateFromName method and casting the type to CustomCrypto.
        ' The create function attempts to create a vbCustomCrypto object using
        ' the assembly name. This functionality requires modification of the
        ' machine.config file. Add the following section to the configuration
        ' element and modify the values of the cryptoClass to reflect what is
        ' installed in your machines GAC.
        '          <cryptoClass vbCustomCrypto="Contoso.vbCustomCrypto, 
        '            vbCustomCrypto, 
        '            Culture=neutral, 
        '            PublicKeyToken=fdb9f9c4851028bf, 
        '            Version=1.0.1448.27640" />
        '        <nameEntry name="Contoso.vbCustomCrypto" 
        '                   class="vbCustomCrypto" />
        '        <nameEntry name="vbCustomCrypto" class="vbCustomCrypto" />
        Public Shadows Function Create( _
            ByVal algorithmName As String) As vbCustomCrypto

            Return CType( _
                CryptoConfig.CreateFromName(algorithmName), _
                vbCustomCrypto)

        End Function
    End Class
    Class Form1
        Inherits System.Windows.Forms.Form

        ' Event handler for Run button.
        Private Sub Button1_Click( _
            ByVal sender As System.Object, _
            ByVal e As System.EventArgs) Handles Button1.Click

            tbxOutput.Cursor = Cursors.WaitCursor
            tbxOutput.Text = ""

            ' Construct a CustomCrypto object and initialize its
            ' CspParameters.
            Dim customCrypto As New Contoso.vbCustomCrypto
            customCrypto.InitializeParameters()

            ' Display properties of the current vbCustomCrypto object.
            WriteLine("*** CustomCrypto created with default parameters:")
            DisplayProperties(customCrypto)

            ' Release all the resources used by this instance of CustomCrytpo.
            customCrypto.Clear()

            customCrypto = New Contoso.vbCustomCrypto(64)
            ' Create new parameters and set them by using the
            ' FromXmlString method.
            Dim parameterXml As String = "<CustomCryptoKeyValue>"
            parameterXml += "<ProviderName>Contoso</ProviderName>"
            parameterXml += "<KeyContainerName>SecurityBin2"
            parameterXml += "</KeyContainerName>"
            parameterXml += "<KeyNumber>1</KeyNumber>"
            parameterXml += "<ProviderType>2</ProviderType>"
            parameterXml += "</CustomCryptoKeyValue>"
            customCrypto.FromXmlString(parameterXml)

            ' Display the properties of a customCrypto object created with
            ' custom parameters.
            WriteLine(vbCrLf + "*** " + _
                "CustomCrypto created with custom parameters:")
            DisplayProperties(customCrypto)

            ' Create an object by using the assembly name.
            Try
                Dim createdCrypto As Contoso.vbCustomCrypto
                createdCrypto = customCrypto.Create("vbCustomCrypto")

                If (Not createdCrypto Is Nothing) Then
                    Write(vbCrLf + "*** Successfully created vbCustomCrytpo ")
                    WriteLine("from the Create method.")

                    DisplayProperties(createdCrypto)
                Else
                    Write("Unable to create CustomCrytpo from ")
                    WriteLine(" the Create method.")
                End If
            Catch ex As Exception
                WriteLine(ex.ToString())
            End Try

            ' Align interface and conclude application.
            WriteLine("This sample completed successfully;" + _
                " press Exit to continue.")

            ' Reset the cursor.
            tbxOutput.Cursor = Cursors.Default
        End Sub
        ' Display the properties of the specified CustomCrypto object to
        ' the output texbox.
        Public Sub DisplayProperties( _
            ByVal customCrypto As Contoso.vbCustomCrypto)

            Try
                ' Retrieve the class description for the customCrypto object.
                Dim classDescription As String = customCrypto.ToString()

                WriteLine(classDescription)
                WriteLine("KeyExchangeAlgorithm: " + _
                    customCrypto.KeyExchangeAlgorithm)
                WriteLine("SignatureAlgorithm: " + _
                    customCrypto.SignatureAlgorithm)
                WriteLine("KeySize: " + customCrypto.KeySize.ToString())
                WriteLine("Parameters described in Xml format:")
                WriteLine(customCrypto.ToXmlString(True))

                ' Display the MinSize, MaxSize, and SkipSize properties of 
                ' each KeySize item in the local keySizes member variable.
                Dim legalKeySizes() As KeySizes = customCrypto.LegalKeySizes
                If (legalKeySizes.Length > 0) Then
                    For i As Integer = 0 To legalKeySizes.Length - 1 Step 1
                        Write("Keysize" + i.ToString() + " min, max, step: ")
                        Write(legalKeySizes(i).MinSize.ToString() + ", ")
                        Write(legalKeySizes(i).MaxSize.ToString() + ", ")
                        Write(legalKeySizes(i).SkipSize.ToString() + ", ")
                        WriteLine("")
                    Next
                End If
            Catch ex As Exception
                WriteLine("Caught unexpected exception: " + ex.ToString())
            End Try
        End Sub
        ' Write the specified message and carriage return to the output
        ' textbox.
        Private Sub WriteLine(ByVal message As String)
            tbxOutput.AppendText(message + vbCrLf)
        End Sub
        ' Write the specified message to the output textbox.
        Private Sub Write(ByVal message As String)
            tbxOutput.AppendText(message)
        End Sub
        ' Event handler for Exit button.
        Private Sub Button2_Click( _
            ByVal sender As System.Object, _
            ByVal e As System.EventArgs) Handles Button2.Click

            Application.Exit()
        End Sub


        Public Sub New()
            MyBase.New()

            'This call is required by the Windows Form Designer.
            InitializeComponent()

            'Add any initialization after the InitializeComponent() call

        End Sub

        'Form overrides dispose to clean up the component list.
        Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
            If disposing Then
                If Not (components Is Nothing) Then
                    components.Dispose()
                End If
            End If
            MyBase.Dispose(disposing)
        End Sub

        'Required by the Windows Form Designer
        Private components As System.ComponentModel.IContainer

        'NOTE: The following procedure is required by the Windows Form 
        'Designer. It can be modified using the Windows Form Designer. 
        'Do not modify it using the code editor.
        Friend WithEvents Panel2 As System.Windows.Forms.Panel
        Friend WithEvents Panel1 As System.Windows.Forms.Panel
        Friend WithEvents Button1 As System.Windows.Forms.Button
        Friend WithEvents Button2 As System.Windows.Forms.Button
        Friend WithEvents tbxOutput As System.Windows.Forms.RichTextBox
        <System.Diagnostics.DebuggerStepThrough()> _
        Private Sub InitializeComponent()
            Me.Panel2 = New System.Windows.Forms.Panel
            Me.Button1 = New System.Windows.Forms.Button
            Me.Button2 = New System.Windows.Forms.Button
            Me.Panel1 = New System.Windows.Forms.Panel
            Me.tbxOutput = New System.Windows.Forms.RichTextBox
            Me.Panel2.SuspendLayout()
            Me.Panel1.SuspendLayout()
            Me.SuspendLayout()
            '
            'Panel2
            '
            Me.Panel2.Controls.Add(Me.Button1)
            Me.Panel2.Controls.Add(Me.Button2)
            Me.Panel2.Dock = System.Windows.Forms.DockStyle.Bottom
            Me.Panel2.DockPadding.All = 20
            Me.Panel2.Location = New System.Drawing.Point(0, 320)
            Me.Panel2.Name = "Panel2"
            Me.Panel2.Size = New System.Drawing.Size(616, 64)
            Me.Panel2.TabIndex = 1
            '
            'Button1
            '
            Me.Button1.Dock = System.Windows.Forms.DockStyle.Right
            Me.Button1.Font = New System.Drawing.Font( _
                "Microsoft Sans Serif", _
                9.0!, _
                System.Drawing.FontStyle.Regular, _
                System.Drawing.GraphicsUnit.Point, _
                CType(0, Byte))
            Me.Button1.Location = New System.Drawing.Point(446, 20)
            Me.Button1.Name = "Button1"
            Me.Button1.Size = New System.Drawing.Size(75, 24)
            Me.Button1.TabIndex = 2
            Me.Button1.Text = "&Run"
            '
            'Button2
            '
            Me.Button2.Dock = System.Windows.Forms.DockStyle.Right
            Me.Button2.Font = New System.Drawing.Font( _
                "Microsoft Sans Serif", _
                9.0!, _
                System.Drawing.FontStyle.Regular, _
                System.Drawing.GraphicsUnit.Point, _
                CType(0, Byte))
            Me.Button2.Location = New System.Drawing.Point(521, 20)
            Me.Button2.Name = "Button2"
            Me.Button2.Size = New System.Drawing.Size(75, 24)
            Me.Button2.TabIndex = 3
            Me.Button2.Text = "E&xit"
            '
            'Panel1
            '
            Me.Panel1.Controls.Add(Me.tbxOutput)
            Me.Panel1.Dock = System.Windows.Forms.DockStyle.Fill
            Me.Panel1.DockPadding.All = 20
            Me.Panel1.Location = New System.Drawing.Point(0, 0)
            Me.Panel1.Name = "Panel1"
            Me.Panel1.Size = New System.Drawing.Size(616, 320)
            Me.Panel1.TabIndex = 2
            '
            'tbxOutput
            '
            Me.tbxOutput.AccessibleDescription = _
                "Displays output from application."
            Me.tbxOutput.AccessibleName = "Output textbox."
            Me.tbxOutput.Dock = System.Windows.Forms.DockStyle.Fill
            Me.tbxOutput.Location = New System.Drawing.Point(20, 20)
            Me.tbxOutput.Name = "tbxOutput"
            Me.tbxOutput.Size = New System.Drawing.Size(576, 280)
            Me.tbxOutput.TabIndex = 1
            Me.tbxOutput.Text = "Click the Run button to run the application."
            '
            'Form1
            '
            Me.AutoScaleBaseSize = New System.Drawing.Size(6, 15)
            Me.ClientSize = New System.Drawing.Size(616, 384)
            Me.Controls.Add(Me.Panel1)
            Me.Controls.Add(Me.Panel2)
            Me.Name = "Form1"
            Me.Text = "AsymmetricAlgorithm"
            Me.Panel2.ResumeLayout(False)
            Me.Panel1.ResumeLayout(False)
            Me.ResumeLayout(False)

        End Sub

    End Class
End Namespace
'
' This sample produces the following output:
'
' *** CustomCrypto created with default parameters:
' Contoso.vbCustomCrypto
' KeyExchangeAlgorithm: RSA-PKCS1-KeyEx
' SignatureAlgorithm: http://www.w3.org/2000/09/xmldsig#rsa-sha1
' KeySize: 8
' Parameters described in Xml format:
' <CustomCryptoKeyValue><KeyContainerName>SecurityBin1</KeyContainerName>
' <KeyNumber>1</KeyNumber><ProviderName>Contoso</ProviderName>
' <ProviderType>2</ProviderType></CustomCryptoKeyValue>
' Keysize0 min, max, step: 8, 64, 8, 
' 
' *** CustomCrypto created with custom parameters:
' Contoso.vbCustomCrypto
' KeyExchangeAlgorithm: RSA-PKCS1-KeyEx
' SignatureAlgorithm: http://www.w3.org/2000/09/xmldsig#rsa-sha1
' KeySize: 64
' Parameters described in Xml format:
' <CustomCryptoKeyValue><KeyContainerName>SecurityBin2</KeyContainerName>
' <KeyNumber>1</KeyNumber><ProviderName>Contoso</ProviderName>
' <ProviderType>2</ProviderType></CustomCryptoKeyValue>
' Keysize0 min, max, step: 8, 64, 8, 
' Unable to create CustomCrytpo from  the Create method
' This sample completed successfully; press Enter to exit.

Hier ist eine zusätzliche Klasse, die zeigt, wie Sie die benutzerdefinierte Klasse zu verwenden.Here's an additional class that demonstrates how to use the custom class.

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

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

// Display the properties of the specified CustomCrypto object to the
// console.
static void DisplayProperties(Contoso::CustomCrypto^ customCryptoAlgorithm)
{
    // Retrieve the class description for the customCrypto object.
    String^ classDescription = customCryptoAlgorithm->ToString();

    Console::WriteLine(classDescription);
    Console::WriteLine("KeyExchangeAlgorithm: {0}",
        customCryptoAlgorithm->KeyExchangeAlgorithm);
    Console::WriteLine("SignatureAlgorithm: {0}",
        customCryptoAlgorithm->SignatureAlgorithm);
    Console::WriteLine("KeySize: {0}",
        customCryptoAlgorithm->KeySize);
    Console::WriteLine("Parameters described in Xml format:");
    Console::WriteLine(customCryptoAlgorithm->ToXmlString(true));

    // Display the MinSize, MaxSize, and SkipSize properties of
    // each KeySize item in the local keySizes member variable.
    array<KeySizes^>^ legalKeySizes = customCryptoAlgorithm->LegalKeySizes;
    for (int i = 0; i < legalKeySizes->Length; i++)
    {
        Console::WriteLine(
            "Keysize{0} min, max, step: {1}, {2}, {3}, ", i,
            legalKeySizes[i]->MinSize,
            legalKeySizes[i]->MaxSize,
            legalKeySizes[i]->SkipSize);
    }
}

[STAThread]
int main()
{
    // Construct a CustomCrypto object and initialize its
    // CspParameters.
    Contoso::CustomCrypto^ customCryptoAlgorithm = gcnew Contoso::CustomCrypto();
    customCryptoAlgorithm->InitializeParameters();

    // Display properties of the current customCrypto object.
    Console::WriteLine(
        "*** CustomCrypto created with default parameters:");
    DisplayProperties(customCryptoAlgorithm);

    // Release all the resources used by this instance of
    // CustomCrypto.
    customCryptoAlgorithm->Clear();

    customCryptoAlgorithm = gcnew Contoso::CustomCrypto(64);
    // Create new parameters and set them by using the FromXmlString
    // method.
    String^ parameterXml = "<CustomCryptoKeyValue>" +
        "<ProviderName>Contoso</ProviderName>" +
        "<KeyContainerName>SecurityBin2</KeyContainerName>" +
        "<KeyNumber>1</KeyNumber>" +
        "<ProviderType>2</ProviderType>" +
        "</CustomCryptoKeyValue>";
    customCryptoAlgorithm->FromXmlString(parameterXml);

    // Display the properties of a customCrypto object created with
    // custom parameters.
    Console::WriteLine(
        "{0}*** CustomCrypto created with custom parameters:", Environment::NewLine);
    DisplayProperties(customCryptoAlgorithm);

    // Create an object by using the assembly name.
    Contoso::CustomCrypto^ cryptoFromAssembly =
        Contoso::CustomCrypto::Create("CustomCrypto");
    if (cryptoFromAssembly != nullptr)
    {
        Console::WriteLine("{0}*** Successfully created " +
            "CustomCrypto from the Create method.", Environment::NewLine);
        DisplayProperties(cryptoFromAssembly);
    }
    else
    {
        Console::WriteLine("Unable to create CustomCrypto from " +
            "the Create method.");
    }

    Console::WriteLine(
        "This sample completed successfully; press Enter to exit.");
    Console::ReadLine();
}

//
// This sample produces the following output:
//
// *** CustomCrypto created with default parameters:
// Contoso.vbCustomCrypto
// KeyExchangeAlgorithm: RSA-PKCS1-KeyEx
// SignatureAlgorithm: http://www.w3.org/2000/09/xmldsig#rsa-sha1
// KeySize: 8
// Parameters described in Xml format:
// <CustomCryptoKeyValue><KeyContainerName>SecurityBin1</KeyContainerName>
// <KeyNumber>1</KeyNumber><ProviderName>Contoso</ProviderName>
// <ProviderType>2</ProviderType></CustomCryptoKeyValue>
// Keysize0 min, max, step: 8, 64, 8,
//
// *** CustomCrypto created with custom parameters:
// Contoso.vbCustomCrypto
// KeyExchangeAlgorithm: RSA-PKCS1-KeyEx
// SignatureAlgorithm: http://www.w3.org/2000/09/xmldsig#rsa-sha1
// KeySize: 64
// Parameters described in Xml format:
// <CustomCryptoKeyValue><KeyContainerName>SecurityBin2</KeyContainerName>
// <KeyNumber>1</KeyNumber><ProviderName>Contoso</ProviderName>
// <ProviderType>2</ProviderType></CustomCryptoKeyValue>
// Keysize0 min, max, step: 8, 64, 8,
// Unable to create CustomCrypto from the Create method
// This sample completed successfully; press Enter to exit.
    class CustomCryptoImpl
    {
        [STAThread]
        static void Main(string[] args)
        {
            // Construct a CustomCrypto object and initialize its
            // CspParameters.
            CustomCrypto customCrypto = new CustomCrypto();
            customCrypto.InitializeParameters();

            // Display properties of the current customCrypto object.
            Console.WriteLine("*** CustomCrypto created with default " + 
                "parameters:");
            DisplayProperties(customCrypto);

            // Release all the resources used by this instance of 
            // CustomCrytpo.
            customCrypto.Clear();

            customCrypto = new CustomCrypto(64);
            // Create new parameters and set them by using the FromXmlString
            // method.
            string parameterXml = "<CustomCryptoKeyValue>";
            parameterXml += "<ProviderName>Contoso</ProviderName>";
            parameterXml += "<KeyContainerName>SecurityBin2";
            parameterXml += "</KeyContainerName>";
            parameterXml += "<KeyNumber>1</KeyNumber>";
            parameterXml += "<ProviderType>2</ProviderType>";
            parameterXml += "</CustomCryptoKeyValue>";
            customCrypto.FromXmlString(parameterXml);

            // Display the properties of a customCrypto object created with
            // custom parameters.
            Console.WriteLine("\n*** " + 
                "CustomCrypto created with custom parameters:");
            DisplayProperties(customCrypto);

            // Create an object by using the assembly name.
            try
            {
                CustomCrypto myCryptoA = CustomCrypto.Create("CustomCrypto");
                if (myCryptoA != null)
                {
                    Console.Write("\n*** " + 
                        "Successfully created CustomCrytpo from");
                    Console.WriteLine(" the Create method.");

                    DisplayProperties(myCryptoA);
                }
                else
                {
                    Console.Write("Unable to create CustomCrytpo from ");
                    Console.WriteLine(" the Create method.");
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.ToString());
            }
            
            Console.WriteLine("This sample completed successfully; " +
                "press Enter to exit.");
            Console.ReadLine();
        }
        // Display the properties of the specified CustomCrypto object to the
        // console.
        public static void DisplayProperties(CustomCrypto customCrypto)
        {
            try
            {
                // Retrieve the class description for the customCrypto object.
                string classDescription = customCrypto.ToString();

                Console.WriteLine(classDescription);
                Console.Write("KeyExchangeAlgorithm: ");
                Console.WriteLine(customCrypto.KeyExchangeAlgorithm);
                Console.Write("SignatureAlgorithm: ");
                Console.WriteLine(customCrypto.SignatureAlgorithm);
                Console.WriteLine("KeySize: " + customCrypto.KeySize);
                Console.WriteLine("Parameters described in Xml format:");
                Console.WriteLine(customCrypto.ToXmlString(true));

                // Display the MinSize, MaxSize, and SkipSize properties of 
                // each KeySize item in the local keySizes member variable.
                KeySizes[] legalKeySizes = customCrypto.LegalKeySizes;
                if (legalKeySizes.Length > 0)
                {
                    for (int i=0; i < legalKeySizes.Length; i++)
                    {
                        Console.Write("Keysize" + i + " min, max, step: ");
                        Console.Write(legalKeySizes[i].MinSize + ", ");
                        Console.Write(legalKeySizes[i].MaxSize + ", ");
                        Console.WriteLine(legalKeySizes[i].SkipSize + ", ");
                    }
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine("Caught unexpected exception: " + 
                    ex.ToString());
            }
        }
    }
}
//
// This sample produces the following output:
//
// *** CustomCrypto created with default parameters:
// Contoso.vbCustomCrypto
// KeyExchangeAlgorithm: RSA-PKCS1-KeyEx
// SignatureAlgorithm: http://www.w3.org/2000/09/xmldsig#rsa-sha1
// KeySize: 8
// Parameters described in Xml format:
// <CustomCryptoKeyValue><KeyContainerName>SecurityBin1</KeyContainerName>
// <KeyNumber>1</KeyNumber><ProviderName>Contoso</ProviderName>
// <ProviderType>2</ProviderType></CustomCryptoKeyValue>
// Keysize0 min, max, step: 8, 64, 8, 
// 
// *** CustomCrypto created with custom parameters:
// Contoso.vbCustomCrypto
// KeyExchangeAlgorithm: RSA-PKCS1-KeyEx
// SignatureAlgorithm: http://www.w3.org/2000/09/xmldsig#rsa-sha1
// KeySize: 64
// Parameters described in Xml format:
// <CustomCryptoKeyValue><KeyContainerName>SecurityBin2</KeyContainerName>
// <KeyNumber>1</KeyNumber><ProviderName>Contoso</ProviderName>
// <ProviderType>2</ProviderType></CustomCryptoKeyValue>
// Keysize0 min, max, step: 8, 64, 8, 
// Unable to create CustomCrytpo from  the Create method
// This sample completed successfully; press Exit to continue.
    Class Form1
        Inherits System.Windows.Forms.Form

        ' Event handler for Run button.
        Private Sub Button1_Click( _
            ByVal sender As System.Object, _
            ByVal e As System.EventArgs) Handles Button1.Click

            tbxOutput.Cursor = Cursors.WaitCursor
            tbxOutput.Text = ""

            ' Construct a CustomCrypto object and initialize its
            ' CspParameters.
            Dim customCrypto As New Contoso.vbCustomCrypto
            customCrypto.InitializeParameters()

            ' Display properties of the current vbCustomCrypto object.
            WriteLine("*** CustomCrypto created with default parameters:")
            DisplayProperties(customCrypto)

            ' Release all the resources used by this instance of CustomCrytpo.
            customCrypto.Clear()

            customCrypto = New Contoso.vbCustomCrypto(64)
            ' Create new parameters and set them by using the
            ' FromXmlString method.
            Dim parameterXml As String = "<CustomCryptoKeyValue>"
            parameterXml += "<ProviderName>Contoso</ProviderName>"
            parameterXml += "<KeyContainerName>SecurityBin2"
            parameterXml += "</KeyContainerName>"
            parameterXml += "<KeyNumber>1</KeyNumber>"
            parameterXml += "<ProviderType>2</ProviderType>"
            parameterXml += "</CustomCryptoKeyValue>"
            customCrypto.FromXmlString(parameterXml)

            ' Display the properties of a customCrypto object created with
            ' custom parameters.
            WriteLine(vbCrLf + "*** " + _
                "CustomCrypto created with custom parameters:")
            DisplayProperties(customCrypto)

            ' Create an object by using the assembly name.
            Try
                Dim createdCrypto As Contoso.vbCustomCrypto
                createdCrypto = customCrypto.Create("vbCustomCrypto")

                If (Not createdCrypto Is Nothing) Then
                    Write(vbCrLf + "*** Successfully created vbCustomCrytpo ")
                    WriteLine("from the Create method.")

                    DisplayProperties(createdCrypto)
                Else
                    Write("Unable to create CustomCrytpo from ")
                    WriteLine(" the Create method.")
                End If
            Catch ex As Exception
                WriteLine(ex.ToString())
            End Try

            ' Align interface and conclude application.
            WriteLine("This sample completed successfully;" + _
                " press Exit to continue.")

            ' Reset the cursor.
            tbxOutput.Cursor = Cursors.Default
        End Sub
        ' Display the properties of the specified CustomCrypto object to
        ' the output texbox.
        Public Sub DisplayProperties( _
            ByVal customCrypto As Contoso.vbCustomCrypto)

            Try
                ' Retrieve the class description for the customCrypto object.
                Dim classDescription As String = customCrypto.ToString()

                WriteLine(classDescription)
                WriteLine("KeyExchangeAlgorithm: " + _
                    customCrypto.KeyExchangeAlgorithm)
                WriteLine("SignatureAlgorithm: " + _
                    customCrypto.SignatureAlgorithm)
                WriteLine("KeySize: " + customCrypto.KeySize.ToString())
                WriteLine("Parameters described in Xml format:")
                WriteLine(customCrypto.ToXmlString(True))

                ' Display the MinSize, MaxSize, and SkipSize properties of 
                ' each KeySize item in the local keySizes member variable.
                Dim legalKeySizes() As KeySizes = customCrypto.LegalKeySizes
                If (legalKeySizes.Length > 0) Then
                    For i As Integer = 0 To legalKeySizes.Length - 1 Step 1
                        Write("Keysize" + i.ToString() + " min, max, step: ")
                        Write(legalKeySizes(i).MinSize.ToString() + ", ")
                        Write(legalKeySizes(i).MaxSize.ToString() + ", ")
                        Write(legalKeySizes(i).SkipSize.ToString() + ", ")
                        WriteLine("")
                    Next
                End If
            Catch ex As Exception
                WriteLine("Caught unexpected exception: " + ex.ToString())
            End Try
        End Sub
        ' Write the specified message and carriage return to the output
        ' textbox.
        Private Sub WriteLine(ByVal message As String)
            tbxOutput.AppendText(message + vbCrLf)
        End Sub
        ' Write the specified message to the output textbox.
        Private Sub Write(ByVal message As String)
            tbxOutput.AppendText(message)
        End Sub
        ' Event handler for Exit button.
        Private Sub Button2_Click( _
            ByVal sender As System.Object, _
            ByVal e As System.EventArgs) Handles Button2.Click

            Application.Exit()
        End Sub


        Public Sub New()
            MyBase.New()

            'This call is required by the Windows Form Designer.
            InitializeComponent()

            'Add any initialization after the InitializeComponent() call

        End Sub

        'Form overrides dispose to clean up the component list.
        Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
            If disposing Then
                If Not (components Is Nothing) Then
                    components.Dispose()
                End If
            End If
            MyBase.Dispose(disposing)
        End Sub

        'Required by the Windows Form Designer
        Private components As System.ComponentModel.IContainer

        'NOTE: The following procedure is required by the Windows Form 
        'Designer. It can be modified using the Windows Form Designer. 
        'Do not modify it using the code editor.
        Friend WithEvents Panel2 As System.Windows.Forms.Panel
        Friend WithEvents Panel1 As System.Windows.Forms.Panel
        Friend WithEvents Button1 As System.Windows.Forms.Button
        Friend WithEvents Button2 As System.Windows.Forms.Button
        Friend WithEvents tbxOutput As System.Windows.Forms.RichTextBox
        <System.Diagnostics.DebuggerStepThrough()> _
        Private Sub InitializeComponent()
            Me.Panel2 = New System.Windows.Forms.Panel
            Me.Button1 = New System.Windows.Forms.Button
            Me.Button2 = New System.Windows.Forms.Button
            Me.Panel1 = New System.Windows.Forms.Panel
            Me.tbxOutput = New System.Windows.Forms.RichTextBox
            Me.Panel2.SuspendLayout()
            Me.Panel1.SuspendLayout()
            Me.SuspendLayout()
            '
            'Panel2
            '
            Me.Panel2.Controls.Add(Me.Button1)
            Me.Panel2.Controls.Add(Me.Button2)
            Me.Panel2.Dock = System.Windows.Forms.DockStyle.Bottom
            Me.Panel2.DockPadding.All = 20
            Me.Panel2.Location = New System.Drawing.Point(0, 320)
            Me.Panel2.Name = "Panel2"
            Me.Panel2.Size = New System.Drawing.Size(616, 64)
            Me.Panel2.TabIndex = 1
            '
            'Button1
            '
            Me.Button1.Dock = System.Windows.Forms.DockStyle.Right
            Me.Button1.Font = New System.Drawing.Font( _
                "Microsoft Sans Serif", _
                9.0!, _
                System.Drawing.FontStyle.Regular, _
                System.Drawing.GraphicsUnit.Point, _
                CType(0, Byte))
            Me.Button1.Location = New System.Drawing.Point(446, 20)
            Me.Button1.Name = "Button1"
            Me.Button1.Size = New System.Drawing.Size(75, 24)
            Me.Button1.TabIndex = 2
            Me.Button1.Text = "&Run"
            '
            'Button2
            '
            Me.Button2.Dock = System.Windows.Forms.DockStyle.Right
            Me.Button2.Font = New System.Drawing.Font( _
                "Microsoft Sans Serif", _
                9.0!, _
                System.Drawing.FontStyle.Regular, _
                System.Drawing.GraphicsUnit.Point, _
                CType(0, Byte))
            Me.Button2.Location = New System.Drawing.Point(521, 20)
            Me.Button2.Name = "Button2"
            Me.Button2.Size = New System.Drawing.Size(75, 24)
            Me.Button2.TabIndex = 3
            Me.Button2.Text = "E&xit"
            '
            'Panel1
            '
            Me.Panel1.Controls.Add(Me.tbxOutput)
            Me.Panel1.Dock = System.Windows.Forms.DockStyle.Fill
            Me.Panel1.DockPadding.All = 20
            Me.Panel1.Location = New System.Drawing.Point(0, 0)
            Me.Panel1.Name = "Panel1"
            Me.Panel1.Size = New System.Drawing.Size(616, 320)
            Me.Panel1.TabIndex = 2
            '
            'tbxOutput
            '
            Me.tbxOutput.AccessibleDescription = _
                "Displays output from application."
            Me.tbxOutput.AccessibleName = "Output textbox."
            Me.tbxOutput.Dock = System.Windows.Forms.DockStyle.Fill
            Me.tbxOutput.Location = New System.Drawing.Point(20, 20)
            Me.tbxOutput.Name = "tbxOutput"
            Me.tbxOutput.Size = New System.Drawing.Size(576, 280)
            Me.tbxOutput.TabIndex = 1
            Me.tbxOutput.Text = "Click the Run button to run the application."
            '
            'Form1
            '
            Me.AutoScaleBaseSize = New System.Drawing.Size(6, 15)
            Me.ClientSize = New System.Drawing.Size(616, 384)
            Me.Controls.Add(Me.Panel1)
            Me.Controls.Add(Me.Panel2)
            Me.Name = "Form1"
            Me.Text = "AsymmetricAlgorithm"
            Me.Panel2.ResumeLayout(False)
            Me.Panel1.ResumeLayout(False)
            Me.ResumeLayout(False)

        End Sub

    End Class
End Namespace
'
' This sample produces the following output:
'
' *** CustomCrypto created with default parameters:
' Contoso.vbCustomCrypto
' KeyExchangeAlgorithm: RSA-PKCS1-KeyEx
' SignatureAlgorithm: http://www.w3.org/2000/09/xmldsig#rsa-sha1
' KeySize: 8
' Parameters described in Xml format:
' <CustomCryptoKeyValue><KeyContainerName>SecurityBin1</KeyContainerName>
' <KeyNumber>1</KeyNumber><ProviderName>Contoso</ProviderName>
' <ProviderType>2</ProviderType></CustomCryptoKeyValue>
' Keysize0 min, max, step: 8, 64, 8, 
' 
' *** CustomCrypto created with custom parameters:
' Contoso.vbCustomCrypto
' KeyExchangeAlgorithm: RSA-PKCS1-KeyEx
' SignatureAlgorithm: http://www.w3.org/2000/09/xmldsig#rsa-sha1
' KeySize: 64
' Parameters described in Xml format:
' <CustomCryptoKeyValue><KeyContainerName>SecurityBin2</KeyContainerName>
' <KeyNumber>1</KeyNumber><ProviderName>Contoso</ProviderName>
' <ProviderType>2</ProviderType></CustomCryptoKeyValue>
' Keysize0 min, max, step: 8, 64, 8, 
' Unable to create CustomCrytpo from  the Create method
' This sample completed successfully; press Enter to exit.

Hinweise

Asymmetrische kryptografische Algorithmen, auch bekannt als Algorithmen mit öffentlichem Schlüssel, erfordern, Absender und Empfänger, ein paar zugehörigen Schlüssel verwalten: einen privaten Schlüssel und einen öffentlichen Schlüssel.Asymmetric cryptographic algorithms, also known as public-key algorithms, require that both sender and receiver maintain a pair of related keys: a private key and a public key. Beide Schlüssel gelten nur für die Entität.Both keys are unique to the entity. Der öffentliche Schlüssel kann für alle Benutzer verfügbar gemacht werden; Dieser Schlüssel wird zum Codieren von Daten, die an einen Empfänger gesendet wird.The public key can be made available to anyone; this key is used for encoding data that is sent to a receiver. Der private Schlüssel muss vom Empfänger vertraulich behandelt werden; Dieser Schlüssel wird zum Decodieren von Nachrichten mithilfe des öffentlichen Schlüssels des Empfängers codiert verwendet.The private key must be kept private by the receiver; this key is used for decoding messages encoded using the receiver's public key. Die RSACryptoServiceProvider -Klasse ist eine Implementierung eines Algorithmus mit öffentlichem Schlüssel.The RSACryptoServiceProvider class is an implementation of a public-key algorithm. Ausführliche Informationen zur Verschlüsselung mit öffentlichem Schlüssel und Algorithmen, finden Sie im Abschnitt "Verschlüsselung mit öffentlichem Schlüssel" Kryptografiedienste.For an in-depth discussion of public-key encryption and algorithms, see the "Public-Key Encryption" section in Cryptographic Services. Informationen dazu, wie Sie das Strong Name-Tool (Sn.exe) verwenden, um Schlüssel-Paare zu erstellen, finden Sie unter Vorgehensweise: Erstellen eines öffentlichen/privaten Schlüsselpaars.For information about how to use the Strong Name tool (Sn.exe) to create key pairs, see How to: Create a Public-Private Key Pair.

Sie können Systeme mit öffentlichem Schlüssel für digitale Signaturen verwenden.You can use public-key systems to form digital signatures. Digitale Signaturen verwendet, um die Integrität der Daten zu schützen.Digital signatures are used to help to protect the integrity of data. Beispielsweise gilt um ein System von öffentlichem Schlüssel zum digitalen Signieren von Nachrichten zu verwenden, der Absender zuerst eine Hash-Funktion die Nachricht an einen Message Digest zu erstellen.For example, to use a public-key system to digitally sign a message, the sender first applies a hash function to the message to create a message digest. Der Sender verschlüsselt klicken Sie dann den Message Digest mit dem privaten Schlüssel des Absenders, zum Erstellen des Absenders persönliche Signatur.The sender then encrypts the message digest with the sender's private key to create the sender's personal signature. Nach dem Empfang der Nachricht und der Signatur, der Empfänger entschlüsselt die Signatur mit dem öffentlichen Schlüssel des Absenders verwenden, um den Message Digest wiederherzustellen und erstellt einen Hashwert für die Nachricht mit dem gleichen Hashalgorithmus, den der Sender verwendet.Upon receiving the message and signature, the receiver decrypts the signature using the sender's public key to recover the message digest and hashes the message using the same hash algorithm that the sender used. Wenn der Message-Digest, den der Empfänger berechnet den Hash, der vom Sender empfangene übereinstimmt, kann der Empfänger davon ausgehen, dass die Nachricht bei der Übertragung nicht geändert wurde.If the message digest that the receiver computes matches the message digest received from the sender, the receiver can assume that the message was not altered while in transit. Beachten Sie, dass jeder Benutzer eine Signatur zu überprüfen, kann aus, da der öffentliche Schlüssel des Absenders allgemein bekannt ist.Note that anyone can verify a signature, because the sender's public key is common knowledge. Dieses Verfahren ist nicht der Nachricht geheim gehalten. für die Nachricht geheim sein müssen sie zusätzlich verschlüsselt werden.This technique does not retain the secrecy of the message; for the message to be secret, it must also be encrypted.

.NET Framework bietet die folgenden Klassen, die digitale Signaturalgorithmen implementiert: DSACryptoServiceProvider, RSACryptoServiceProvider, ECDsa (Basisklasse), und ECDsaCng.The .NET Framework provides the following classes that implement digital signature algorithms: DSACryptoServiceProvider, RSACryptoServiceProvider, ECDsa (base class), and ECDsaCng.

Die System.Security.Cryptography Namespace stellt die konkrete Klassen für RSA und DSA nur.The System.Security.Cryptography namespace provides concrete classes for RSA and DSA only.

Erfahren, wie Sie mit den RSA-Algorithmus zum Verschlüsseln und Entschlüsseln von XML-Daten, und erstellen und überprüfen die digitale XML-Signaturen, finden Sie in diesen Artikeln:To learn how to use the RSA algorithm to encrypt and decrypt XML data, and create and verify XML digital signatures, see these articles:

Konstruktoren

AsymmetricAlgorithm() AsymmetricAlgorithm() AsymmetricAlgorithm() AsymmetricAlgorithm()

Initialisiert eine neue Instanz der AsymmetricAlgorithm-Klasse.Initializes a new instance of the AsymmetricAlgorithm class.

Felder

KeySizeValue KeySizeValue KeySizeValue KeySizeValue

Stellt die Größe des vom asymmetrischen Algorithmus verwendeten Schlüsselmodulos in Bits dar.Represents the size, in bits, of the key modulus used by the asymmetric algorithm.

LegalKeySizesValue LegalKeySizesValue LegalKeySizesValue LegalKeySizesValue

Gibt die vom asymmetrischen Algorithmus unterstützten Schlüsselgrößen an.Specifies the key sizes that are supported by the asymmetric algorithm.

Eigenschaften

KeyExchangeAlgorithm KeyExchangeAlgorithm KeyExchangeAlgorithm KeyExchangeAlgorithm

Ruft beim Überschreiben in einer abgeleiteten Klasse den Namen des Algorithmus für den Schlüsselaustausch ab.When overridden in a derived class, gets the name of the key exchange algorithm. Löst andernfalls eine NotImplementedException aus.Otherwise, throws an NotImplementedException.

KeySize KeySize KeySize KeySize

Ruft die Größe des vom asymmetrischen Algorithmus verwendeten Schlüsselmodulos in Bits ab oder legt diese fest.Gets or sets the size, in bits, of the key modulus used by the asymmetric algorithm.

LegalKeySizes LegalKeySizes LegalKeySizes LegalKeySizes

Ruft die vom asymmetrischen Algorithmus unterstützten Schlüsselgrößen ab.Gets the key sizes that are supported by the asymmetric algorithm.

SignatureAlgorithm SignatureAlgorithm SignatureAlgorithm SignatureAlgorithm

Ruft beim Implementieren in einer abgeleiteten Klasse den Namen des Signaturalgorithmus ab.When implemented in a derived class, gets the name of the signature algorithm. Löst andernfalls immer eine NotImplementedException aus.Otherwise, always throws a NotImplementedException.

Methoden

Clear() Clear() Clear() Clear()

Gibt alle von der AsymmetricAlgorithm-Klasse verwendeten Ressourcen frei.Releases all resources used by the AsymmetricAlgorithm class.

Create() Create() Create() Create()

Erstellt ein Standardkryptografieobjekt zum Ausführen des asymmetrischen Algorithmus.Creates a default cryptographic object used to perform the asymmetric algorithm.

Create(String) Create(String) Create(String) Create(String)

Erstellt eine Instanz der angegebenen Implementierung eines symmetrischen Algorithmus.Creates an instance of the specified implementation of an asymmetric algorithm.

Dispose() Dispose() Dispose() Dispose()

Gibt alle von der aktuellen Instanz der AsymmetricAlgorithm-Klasse verwendeten Ressourcen frei.Releases all resources used by the current instance of the AsymmetricAlgorithm class.

Dispose(Boolean) Dispose(Boolean) Dispose(Boolean) Dispose(Boolean)

Gibt die von der AsymmetricAlgorithm-Klasse verwendeten nicht verwalteten Ressourcen frei und gibt (optional) auch die verwalteten Ressourcen frei.Releases the unmanaged resources used by the AsymmetricAlgorithm class and optionally releases the managed resources.

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Bestimmt, ob das angegebene Objekt mit dem aktuellen Objekt identisch ist.Determines whether the specified object is equal to the current object.

(Inherited from Object)
ExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, PbeParameters) ExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, PbeParameters) ExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, PbeParameters) ExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, PbeParameters)
ExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, PbeParameters) ExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, PbeParameters) ExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, PbeParameters) ExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, PbeParameters)
ExportPkcs8PrivateKey() ExportPkcs8PrivateKey() ExportPkcs8PrivateKey() ExportPkcs8PrivateKey()
ExportSubjectPublicKeyInfo() ExportSubjectPublicKeyInfo() ExportSubjectPublicKeyInfo() ExportSubjectPublicKeyInfo()
FromXmlString(String) FromXmlString(String) FromXmlString(String) FromXmlString(String)

Stellt beim Überschreiben in einer abgeleiteten Klasse ein AsymmetricAlgorithm-Objekt aus einer XML-Zeichenfolge wieder her.When overridden in a derived class, reconstructs an AsymmetricAlgorithm object from an XML string. Löst andernfalls eine NotImplementedException aus.Otherwise, throws a NotImplementedException.

GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Fungiert als Standardhashfunktion.Serves as the default hash function.

(Inherited from Object)
GetType() GetType() GetType() GetType()

Ruft den Type der aktuellen Instanz ab.Gets the Type of the current instance.

(Inherited from Object)
ImportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, Int32) ImportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, Int32) ImportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, Int32) ImportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, Int32)
ImportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, ReadOnlySpan<Byte>, Int32) ImportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, ReadOnlySpan<Byte>, Int32) ImportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, ReadOnlySpan<Byte>, Int32) ImportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, ReadOnlySpan<Byte>, Int32)
ImportPkcs8PrivateKey(ReadOnlySpan<Byte>, Int32) ImportPkcs8PrivateKey(ReadOnlySpan<Byte>, Int32) ImportPkcs8PrivateKey(ReadOnlySpan<Byte>, Int32) ImportPkcs8PrivateKey(ReadOnlySpan<Byte>, Int32)
ImportSubjectPublicKeyInfo(ReadOnlySpan<Byte>, Int32) ImportSubjectPublicKeyInfo(ReadOnlySpan<Byte>, Int32) ImportSubjectPublicKeyInfo(ReadOnlySpan<Byte>, Int32) ImportSubjectPublicKeyInfo(ReadOnlySpan<Byte>, Int32)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Erstellt eine flache Kopie des aktuellen Object.Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

Gibt eine Zeichenfolge zurück, die das aktuelle Objekt darstellt.Returns a string that represents the current object.

(Inherited from Object)
ToXmlString(Boolean) ToXmlString(Boolean) ToXmlString(Boolean) ToXmlString(Boolean)

Erstellt beim Überschreiben in einer abgeleiteten Klasse eine XML-Zeichenfolgendarstellung des aktuellen AsymmetricAlgorithm-Objekts und gibt diese zurück.When overridden in a derived class, creates and returns an XML string representation of the current AsymmetricAlgorithm object. Löst andernfalls eine NotImplementedException aus.Otherwise, throws a NotImplementedException.

TryExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, PbeParameters, Span<Byte>, Int32) TryExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, PbeParameters, Span<Byte>, Int32) TryExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, PbeParameters, Span<Byte>, Int32) TryExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Byte>, PbeParameters, Span<Byte>, Int32)
TryExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, PbeParameters, Span<Byte>, Int32) TryExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, PbeParameters, Span<Byte>, Int32) TryExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, PbeParameters, Span<Byte>, Int32) TryExportEncryptedPkcs8PrivateKey(ReadOnlySpan<Char>, PbeParameters, Span<Byte>, Int32)
TryExportPkcs8PrivateKey(Span<Byte>, Int32) TryExportPkcs8PrivateKey(Span<Byte>, Int32) TryExportPkcs8PrivateKey(Span<Byte>, Int32) TryExportPkcs8PrivateKey(Span<Byte>, Int32)
TryExportSubjectPublicKeyInfo(Span<Byte>, Int32) TryExportSubjectPublicKeyInfo(Span<Byte>, Int32) TryExportSubjectPublicKeyInfo(Span<Byte>, Int32) TryExportSubjectPublicKeyInfo(Span<Byte>, Int32)

Explizite Schnittstellenimplementierungen

IDisposable.Dispose() IDisposable.Dispose() IDisposable.Dispose() IDisposable.Dispose()

Eine Beschreibung dieses Members finden Sie unter Dispose().For a description of this member, see Dispose().

Gilt für:

Siehe auch