X509Certificate.GetKeyAlgorithm 方法

定義

傳回做為字串的這個 X.509v3 憑證金鑰演算法資訊。Returns the key algorithm information for this X.509v3 certificate as a string.

public:
 virtual System::String ^ GetKeyAlgorithm();
public virtual string GetKeyAlgorithm ();
abstract member GetKeyAlgorithm : unit -> string
override this.GetKeyAlgorithm : unit -> string
Public Overridable Function GetKeyAlgorithm () As String

傳回

做為字串的這個 X.509 憑證金鑰演算法資訊。The key algorithm information for this X.509 certificate as a string.

例外狀況

憑證內容無效。The certificate context is invalid.

範例

下列範例會使用 GetKeyAlgorithm 方法,以字串格式取得憑證的金鑰演算法,並將它顯示在主控台中。The following example uses the GetKeyAlgorithm method to get a certificate's key algorithm in string format and displays it to the console.

using namespace System;
using namespace System::Security::Cryptography::X509Certificates;
int main()
{
   
   // The path to the certificate.
   String^ Certificate = "Certificate.cer";
   
   // Load the certificate into an X509Certificate object.
   X509Certificate^ cert = X509Certificate::CreateFromCertFile( Certificate );
   
   // Get the value.
   String^ results = cert->GetKeyAlgorithm();
   
   // Display the value to the console.
   Console::WriteLine( results );
}


using System;
using System.Security.Cryptography.X509Certificates;


public class X509
{

    public static void Main()
    {

        // The path to the certificate.
        string Certificate =  "Certificate.cer";

        // Load the certificate into an X509Certificate object.
        X509Certificate cert = X509Certificate.CreateFromCertFile(Certificate);

        // Get the value.
        string results = cert.GetKeyAlgorithm();
       
        // Display the value to the console.
        Console.WriteLine(results);
  
    }

}
Imports System.Security.Cryptography.X509Certificates




Public Class X509
   
   
   Public Shared Sub Main()
      
      ' The path to the certificate.
      Dim Certificate As String = "Certificate.cer"
      
      ' Load the certificate into an X509Certificate object.
      Dim cert As X509Certificate = X509Certificate.CreateFromCertFile(Certificate)
      
      ' Get the value.
      Dim results As String = cert.GetKeyAlgorithm()
      
      ' Display the value to the console.
      Console.WriteLine(results)
   End Sub  
End Class 

適用於