(VBScript) Transition from Email.GetSignedByCertChain to Email.LastSignerCert

Provides instructions for replacing deprecated GetSignedByCertChain method calls with LastSignerCert.

Note: This example requires Chilkat v11.0.0 or greater.

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.Email")
set email = CreateObject("Chilkat.Email")

' ...
' ...

' ------------------------------------------------------------------------
' The GetSignedByCertChain method is deprecated:

' certChainObj is a Chilkat.CertChain
Set certChainObj = email.GetSignedByCertChain()
If (email.LastMethodSuccess = 0) Then
    outFile.WriteLine(email.LastErrorText)
    WScript.Quit
End If

' ...
' ...

' ------------------------------------------------------------------------
' Do the equivalent using LastSignerCert to get the signing certificate,
' then build the cert chain from the signing certificate object.

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Cert")
set signerCert = CreateObject("Chilkat.Cert")
success = email.LastSignerCert(0,signerCert)
If (success = 0) Then
    outFile.WriteLine(email.LastErrorText)
    WScript.Quit
End If

' Get the certificate chain from the signer certificate.
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.CertChain")
set certChain = CreateObject("Chilkat.CertChain")
success = signerCert.BuildCertChain(certChain)
If (success = 0) Then
    outFile.WriteLine(signerCert.LastErrorText)
    WScript.Quit
End If


outFile.Close