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X509Certificate.GetSerialNumberString Method

Returns the serial number of the X.509v3 certificate.

Namespace: System.Security.Cryptography.X509Certificates
Assembly: mscorlib (in mscorlib.dll)

public virtual string GetSerialNumberString ()
public String GetSerialNumberString ()
public function GetSerialNumberString () : String
Not applicable.

Return Value

The serial number of the X.509 certificate as a hexadecimal string.

The following example uses the GetSerialNumberString method to return a certificate's serial number as a string and displays it to the console.


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.GetSerialNumberString();
       
        // Display the value to the console.
        Console.WriteLine(results);


  
    }

}

import System.*;
import System.Security.Cryptography.X509Certificates.*;

public class X509
{
    public static void main(String[] args)
    {
        // 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.GetSerialNumberString();

        // Display the value to the console.
        Console.WriteLine(results);
    } //main 
} //X509 

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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