PowerBuilder

(PKCS11) Use a Smart Card Certificate + Private Key for SSL/TLS Authentication

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Demonstrates how to use a certificate + private key located on a smart card for the TLS client certificate in an HTTPS request. PowerBuilder

integer li_rc
integer li_Success
oleobject loo_Pkcs11
integer li_SlotID
integer li_ReadWrite
integer li_UserType
string ls_Pin
oleobject loo_Cert
oleobject loo_Http
string ls_ResponseBody

li_Success = 0

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// Note: Chilkat's PKCS11 implementation runs on Windows, Linux, Mac OS X, and other supported operating systems.

loo_Pkcs11 = create oleobject
li_rc = loo_Pkcs11.ConnectToNewObject("Chilkat.Pkcs11")
if li_rc < 0 then
    destroy loo_Pkcs11
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// Set your shared lib path -- either a full path to the DLL, .so, or .dylib,
// or just the filename if the driver is in a location that can be automatically found. (Such as in C:\Windows\System32)
loo_Pkcs11.SharedLibPath = "C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS1164.dll"

li_Success = loo_Pkcs11.Initialize()
if li_Success = 0 then
    Write-Debug loo_Pkcs11.LastErrorText
    destroy loo_Pkcs11
    return
end if

// Pass -1 for the slotID to open a session on the first non-empty slot.
li_SlotID = -1

// Open a session.
li_ReadWrite = 1
li_Success = loo_Pkcs11.OpenSession(li_SlotID,li_ReadWrite)
if li_Success = 0 then
    Write-Debug loo_Pkcs11.LastErrorText
    destroy loo_Pkcs11
    return
end if

// Make it an authenticated session by calling Login.
// 
// If we don't authenticate, then we won't be able to see the private keys, and thus
// we won't know which certificates have an associated private key stored on the smart card.

// The smart card PIN is passed to the Login method.
// userType 1 indicates a "Normal User".
li_UserType = 1
ls_Pin = "0000"
li_Success = loo_Pkcs11.Login(li_UserType,ls_Pin)
if li_Success = 0 then
    Write-Debug loo_Pkcs11.LastErrorText
    li_Success = loo_Pkcs11.CloseSession()
    destroy loo_Pkcs11
    return
end if

loo_Cert = create oleobject
li_rc = loo_Cert.ConnectToNewObject("Chilkat.Cert")

// Find a certificate by the Subject Common Name
li_Success = loo_Pkcs11.FindCert("subjectCN","BadSSL Client Certificate",loo_Cert)
if li_Success = 1 then
    Write-Debug "Found: " + loo_Cert.SubjectCN
else
    Write-Debug "Not found: " + loo_Cert.SubjectCN
    li_Success = loo_Pkcs11.CloseSession()
    destroy loo_Pkcs11
    destroy loo_Cert
    return
end if

Write-Debug "Successfully loaded the cert object from the smart card / USB token."

// Note: When successful, the cert object is internally linked to the Pkcs11 object's authenticated session.
// The cert object can now be used to sign or do other cryptographic operations that occur on the smart card / USB token.

// ------------------------------------------------------------------------------------------------------------

// Send an HTTPS request to https://client.badssl.com
// https://client.badssl.com (part of the badssl.com service) lets you test authentication using client SSL certificates. 
// The client certificate can be downloaded from https://badssl.com/download/.
// This server returns 200 OK if the correct client certificate is provided, and 400 Bad Request otherwise.

loo_Http = create oleobject
li_rc = loo_Http.ConnectToNewObject("Chilkat.Http")

// Provide the client certificate (linked internally to our authenticated smartcard session)
li_Success = loo_Http.SetSslClientCert(loo_Cert)
if li_Success = 0 then
    Write-Debug loo_Http.LastErrorText
    li_Success = loo_Pkcs11.CloseSession()
    destroy loo_Pkcs11
    destroy loo_Cert
    destroy loo_Http
    return
end if

ls_ResponseBody = loo_Http.QuickGetStr("https://client.badssl.com/")
if loo_Http.LastMethodSuccess = 0 then
    Write-Debug loo_Http.LastErrorText
    li_Success = loo_Pkcs11.CloseSession()
    destroy loo_Pkcs11
    destroy loo_Cert
    destroy loo_Http
    return
end if

Write-Debug "Response status code: " + string(loo_Http.LastStatus)
Write-Debug "Response body: "
Write-Debug ls_ResponseBody

// ------------------------------------------------------------------------------------------------------------
// Revert to an unauthenticated session by calling Logout.
li_Success = loo_Pkcs11.Logout()
if li_Success = 0 then
    Write-Debug loo_Pkcs11.LastErrorText
    li_Success = loo_Pkcs11.CloseSession()
    destroy loo_Pkcs11
    destroy loo_Cert
    destroy loo_Http
    return
end if

// When finished, close the session.
// It is important to close the session (memory leaks will occur if the session is not properly closed).
li_Success = loo_Pkcs11.CloseSession()
if li_Success = 0 then
    Write-Debug loo_Pkcs11.LastErrorText
    destroy loo_Pkcs11
    destroy loo_Cert
    destroy loo_Http
    return
end if

Write-Debug "Success."


destroy loo_Pkcs11
destroy loo_Cert
destroy loo_Http