Returns the public key for the X.509v3 certificate.
Assembly: mscorlib (in mscorlib.dll)
Syntax array< System. . :: . Byte> [] () []
The public key for the X.509 certificate as an array of bytes.
Public Overridable Function GetPublicKey As Byte()public virtual byte[] GetPublicKey()public:
virtual array<unsigned char>^ GetPublicKey()abstract GetPublicKey : unit -> byte[]
override GetPublicKey : unit -> byte[] Return Value
Type:The public key for the X.509 certificate as an array of bytes.
Exceptions
| Exception | Condition |
|---|---|
| CryptographicException | The certificate context is invalid. |
Examples
The following example uses the GetPublicKey method to return a certificate's public key as an array of bytes and displays it to the console.
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
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);
}
}
}
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.
array<Byte>^results = cert->GetPublicKey();
// Display the value to the console.
System::Collections::IEnumerator^ enum0 = results->GetEnumerator();
while ( enum0->MoveNext() )
{
Byte b = safe_cast<Byte>(enum0->Current);
Console::Write( b );
}
}
Platforms
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.