RSACryptoServiceProvider.CspKeyContainerInfo Propriedade

public:
 property System::Security::Cryptography::CspKeyContainerInfo ^ CspKeyContainerInfo { System::Security::Cryptography::CspKeyContainerInfo ^ get(); };

[System.Runtime.Versioning.SupportedOSPlatform("windows")]
public System.Security.Cryptography.CspKeyContainerInfo CspKeyContainerInfo { get; }

public System.Security.Cryptography.CspKeyContainerInfo CspKeyContainerInfo { get; }

[System.Runtime.InteropServices.ComVisible(false)]
public System.Security.Cryptography.CspKeyContainerInfo CspKeyContainerInfo { get; }

[<System.Runtime.Versioning.SupportedOSPlatform("windows")>]
member this.CspKeyContainerInfo : System.Security.Cryptography.CspKeyContainerInfo

member this.CspKeyContainerInfo : System.Security.Cryptography.CspKeyContainerInfo

[<System.Runtime.InteropServices.ComVisible(false)>]
member this.CspKeyContainerInfo : System.Security.Cryptography.CspKeyContainerInfo

Public ReadOnly Property CspKeyContainerInfo As CspKeyContainerInfo

Valor de Propriedade

Um objeto que descreve informação adicional sobre um par de CspKeyContainerInfo chaves criptográficas.

Implementações

Atributos

SupportedOSPlatformAttribute ComVisibleAttribute

Exemplos

O seguinte exemplo de código demonstra como chamar a CspKeyContainerInfo propriedade.

using System;
using System.Security.Cryptography;
using System.Text;

public class CspKeyContainerInfoExample
{

    public static void Main(String[] args)
    {
        RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();

        try
        {
            // Note: In cases where a random key is generated,
            // a key container is not created until you call
            // a method that uses the key.  This example calls
            // the Encrypt method before calling the
            // CspKeyContainerInfo property so that a key
            // container is created.

            // Create some data to encrypt and display it.
            string data = "Here is some data to encrypt.";

            Console.WriteLine("Data to encrypt: " + data);

            // Convert the data to an array of bytes and
            // encrypt it.
            byte[] byteData = Encoding.ASCII.GetBytes(data);

            byte[] encData = rsa.Encrypt(byteData, false);

            // Display the encrypted value.
            Console.WriteLine("Encrypted Data: " + Encoding.ASCII.GetString(encData));

            Console.WriteLine();

            Console.WriteLine("CspKeyContainerInfo information:");

            Console.WriteLine();

            // Create a new CspKeyContainerInfo object.
            CspKeyContainerInfo keyInfo = rsa.CspKeyContainerInfo;

            // Display the value of each property.

            Console.WriteLine("Accessible property: " + keyInfo.Accessible);

            Console.WriteLine("Exportable property: " + keyInfo.Exportable);

            Console.WriteLine("HardwareDevice property: " + keyInfo.HardwareDevice);

            Console.WriteLine("KeyContainerName property: " + keyInfo.KeyContainerName);

            Console.WriteLine("KeyNumber property: " + keyInfo.KeyNumber.ToString());

            Console.WriteLine("MachineKeyStore property: " + keyInfo.MachineKeyStore);

            Console.WriteLine("Protected property: " + keyInfo.Protected);

            Console.WriteLine("ProviderName property: " + keyInfo.ProviderName);

            Console.WriteLine("ProviderType property: " + keyInfo.ProviderType);

            Console.WriteLine("RandomlyGenerated property: " + keyInfo.RandomlyGenerated);

            Console.WriteLine("Removable property: " + keyInfo.Removable);

            Console.WriteLine("UniqueKeyContainerName property: " + keyInfo.UniqueKeyContainerName);
        }
        catch (Exception e)
        {
            Console.WriteLine(e.ToString());
        }
        finally
        {
            // Clear the key.
            rsa.Clear();
        }
    }
}

Imports System.Security.Cryptography
Imports System.Text

Module CspKeyContainerInfoExample

    Sub Main(ByVal args() As String)
        Dim rsa As New RSACryptoServiceProvider()

        Try
            ' Note: In cases where a random key is generated,   
            ' a key container is not created until you call  
            ' a method that uses the key.  This example calls
            ' the Encrypt method before calling the
            ' CspKeyContainerInfo property so that a key
            ' container is created.  
            ' Create some data to encrypt and display it.
            Dim data As String = "Here is some data to encrypt."

            Console.WriteLine("Data to encrypt: " + data)

            ' Convert the data to an array of bytes and 
            ' encrypt it.
            Dim byteData As Byte() = Encoding.ASCII.GetBytes(data)

            Dim encData As Byte() = rsa.Encrypt(byteData, False)

            ' Display the encrypted value.
            Console.WriteLine("Encrypted Data: " + Encoding.ASCII.GetString(encData))

            Console.WriteLine()

            Console.WriteLine("CspKeyContainerInfo information:")

            Console.WriteLine()

            ' Create a new CspKeyContainerInfo object.
            Dim keyInfo As CspKeyContainerInfo = rsa.CspKeyContainerInfo

            ' Display the value of each property.
            Console.WriteLine("Accessible property: " + keyInfo.Accessible.ToString())

            Console.WriteLine("Exportable property: " + keyInfo.Exportable.ToString())

            Console.WriteLine("HardwareDevice property: " + keyInfo.HardwareDevice.ToString())

            Console.WriteLine("KeyContainerName property: " + keyInfo.KeyContainerName)

            Console.WriteLine("KeyNumber property: " + keyInfo.KeyNumber.ToString())

            Console.WriteLine("MachineKeyStore property: " + keyInfo.MachineKeyStore.ToString())

            Console.WriteLine("Protected property: " + keyInfo.Protected.ToString())

            Console.WriteLine("ProviderName property: " + keyInfo.ProviderName)

            Console.WriteLine("ProviderType property: " + keyInfo.ProviderType.ToString())

            Console.WriteLine("RandomlyGenerated property: " + keyInfo.RandomlyGenerated.ToString())

            Console.WriteLine("Removable property: " + keyInfo.Removable.ToString())

            Console.WriteLine("UniqueKeyContainerName property: " + keyInfo.UniqueKeyContainerName)


        Catch e As Exception
            Console.WriteLine(e.ToString())
        Finally
            ' Clear the key.
            rsa.Clear()
        End Try
        Console.ReadLine()

    End Sub
End Module

Observações

Use a CspKeyContainerInfo propriedade para obter informações adicionais sobre um par de chaves criptográficas. O objeto devolvido CspKeyContainerInfo descreve se a chave é exportável e especifica o nome do contentor da chave, informações sobre o fornecedor e outras informações.

Nos casos em que uma chave aleatória é gerada, um contentor de chave não será criado até que chame um método que use a chave. Algumas propriedades do CspKeyContainerInfo objeto devolvido pela CspKeyContainerInfo propriedade irão lançar um CryptographicException se um contentor de chave não tiver sido criado. Para garantir que um contentor de chave foi criado, chame um método como Encrypt, Decrypt, SignData, SignHash, e assim sucessivamente, antes de chamar a CspKeyContainerInfo propriedade.

Ver também

• Serviços de criptografia