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X509Certificate.GetPublicKey Method

Returns the public key for the X.509v3 certificate.

[Visual Basic]
Public Overridable Function GetPublicKey() As Byte()
[C#]
public virtual byte[] GetPublicKey();
[C++]
public: virtual unsigned char GetPublicKey()  __gc[];
[JScript]
public function GetPublicKey() : Byte[];

Return Value

The public key for the X.509 certificate as an array of bytes.

Example

[Visual Basic] 
Imports System
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 Byte() = cert.GetPublicKey()
      
      ' Display the value to the console.
      Dim b As Byte
      For Each b In  results
         Console.Write(b)
      Next b
   End Sub
End Class 


[C#] 

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.
        byte[] results = cert.GetPublicKey();
       
        // Display the value to the console.
        foreach(byte b in results)
        {
            Console.Write(b);
        }
  
    }

}

[C++] 

#using <mscorlib.dll>
using namespace System;
using namespace System::Security::Cryptography::X509Certificates;

int main()
{

    // The path to the certificate.
    String* Certificate =  S"Certificate.cer";

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

    // Get the value.
    Byte results[] = cert->GetPublicKey();

    // Display the value to the console.
    System::Collections::IEnumerator* enum0 = results->GetEnumerator();
    while (enum0->MoveNext())
    {
        Byte b = *__try_cast<Byte*>(enum0->Current);
        Console::Write(b);
    }

}

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button Language Filter in the upper-left corner of the page.

Requirements

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, .NET Compact Framework

See Also

X509Certificate Class | X509Certificate Members | System.Security.Cryptography.X509Certificates Namespace

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