(VBScript) Find a Certificate by it's SHA-1 Thumbprint

Finds a certificate by it's SHA-1 hex thumbprint. Parts of this example are specific to Windows because it searches the Windows Current User certificate store.

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")

thumbprint = "12c1dd8015f3f03f7b1fa619dc24e2493ca8b4b2"

' This part of the example is specific to Windows because it is opening the Windows Current-User certificate store.
bReadOnly = 1
success = certStore.OpenCurrentUserStore(bReadOnly)
If (success <> 1) Then
    outFile.WriteLine(certStore.LastErrorText)
    WScript.Quit
End If

' Find the certificate with the desired thumbprint
' cert is a Chilkat.Cert
Set cert = certStore.FindCertBySha1Thumbprint(thumbprint)
If (certStore.LastMethodSuccess <> 1) Then
    outFile.WriteLine("Failed to find the certificate.")
    WScript.Quit
End If

outFile.WriteLine("Found: " & cert.SubjectCN)

' -------------------------------------------------------------------------------------
' Alternatively, one could load a certificate store object with certs from a PEM file,
' and do the same thing..
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.CertStore")
set certStorePem = CreateObject("Chilkat.CertStore")

success = certStorePem.LoadPemFile("pemFiles/certificates.pem")
If (success <> 1) Then
    outFile.WriteLine(certStorePem.LastErrorText)
    WScript.Quit
End If

' cert is a Chilkat.Cert
Set cert = certStorePem.FindCertBySha1Thumbprint(thumbprint)
If (certStorePem.LastMethodSuccess <> 1) Then
    outFile.WriteLine("Failed to find the certificate.")
    WScript.Quit
End If

outFile.WriteLine("Found: " & cert.SubjectCN)


outFile.Close