X509Certificate.GetIssuerName Method ()

obsoleteCodeEntityP:System.Security.Cryptography.X509Certificates.X509Certificate.IssuerNote: This API is now obsolete.

Returns the name of the certification authority that issued the X.509v3 certificate.

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

<ObsoleteAttribute("This method has been deprecated.  Please use the Issuer property instead.  http://go.microsoft.com/fwlink/?linkid=14202")>
Public Overridable Function GetIssuerName As String

Return Value

Type: System.String

The name of the certification authority that issued the X.509 certificate.

Exception Condition

An error with the certificate occurs. For example:

  • The certificate file does not exist.

  • The certificate is invalid.

  • The certificate's password is incorrect.

The following example uses the GetIssuerName method to return the certificate issuer's name 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 String = cert.GetIssuerName()

      ' Display the value to the console.
   End Sub  
End Class 

.NET Framework
Available since 1.1
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