(VBScript) Find Certificate by Email Address

Locate the certificate containing the specified email address in either the RFC822 Name or the Subject.

Note: This example requires Chilkat v10.1.2 or later.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.CertStore")
set certStore = CreateObject("Chilkat.CertStore")

' This opens the Current User certificate store on Windows,
' On MacOS and iOS it opens the default Keychain.
readOnly = 1
success = certStore.OpenCurrentUserStore(readOnly)
If (success = 0) Then
    outFile.WriteLine(certStore.LastErrorText)
    WScript.Quit
End If

' Locate the certificate containing the specified email address in either the RFC822 Name or the Subject.
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.JsonObject")
set json = CreateObject("Chilkat.JsonObject")
email_address = "harold@example.com"
success = json.UpdateString("email",email_address)

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Cert")
set cert = CreateObject("Chilkat.Cert")
success = certStore.FindCert(json,cert)
If (success = 1) Then
    ' Show the full distinguished name of the certificate.
    outFile.WriteLine("Found: " & cert.SubjectDN)
Else
    outFile.WriteLine("Not found.")
End If


outFile.Close