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

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Finds a certificate by it's SHA-1 hex thumbprint.

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

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.CertStore")
set certStore = Server.CreateObject("Chilkat.CertStore")

thumbprint = "12c1dd8015f3f03f7b1fa619dc24e2493ca8b4b2"

' This opens the Current User certificate store on Windows,
' On MacOS and iOS it opens the default Keychain.
bReadOnly = 1
success = certStore.OpenCurrentUserStore(bReadOnly)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( certStore.LastErrorText) & "</pre>"
    Response.End
End If

' Find the certificate having a specific SHA1 thumbprint.
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.JsonObject")
set json = Server.CreateObject("Chilkat.JsonObject")
success = json.UpdateString("thumbprint",thumbprint)

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Cert")
set cert = Server.CreateObject("Chilkat.Cert")
success = certStore.FindCert(json,cert)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( "Failed to find the certificate.") & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "Found: " & cert.SubjectCN) & "</pre>"

' -------------------------------------------------------------------------------------
' 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 = Server.CreateObject("Chilkat.CertStore")

success = certStorePem.LoadPemFile("pemFiles/certificates.pem")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( certStorePem.LastErrorText) & "</pre>"
    Response.End
End If

success = certStore.FindCert(json,cert)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( "Failed to find the certificate.") & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "Found: " & cert.SubjectCN) & "</pre>"

%>
</body>
</html>