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HTTPS Client Certificate using Smartcard or Token

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Explains how to use a client certificate for HTTP TLS mutual authentication where the certificate and private key exists on an HSM (Smartcard or USB Token). AutoIt

Local $bSuccess = False

$oHttp = ObjCreate("Chilkat.Http")

; To do HTTPS mutual authentication where the certificate and private key are stored
; on a smartcard or token, first load the Chilkat certificate object from the smartcard/token,
; and then pass the certificate object to the Http object's SetSslClientCert method.

; Doing HTTP mutual authentication is the same regardless of the source of the cert + private key.
; The steps are to first load the certificate from the source, then pass the cert object to the HTTP object.
; Chilkat provides methods for loading the certificate from a variety of sources, such as smartcards, tokens,
; .pfx/.p12 files, Windows registry-based certificate stores, PEM files, or other file formats.
$oCert = ObjCreate("Chilkat.Cert")

; The easiest way to load a certificate from an HSM is to call cert.LoadFromSmartcard with 
; an empty string argument.  Chilkat will detect the HSM and will choose the most appropriate
; underlying means for accessing and loading the default certificate + key from the HSM.
; The underlying means could be PKCS11, ScMinidriver, or MSCNG, depending on the HSM what it
; supports.

; For example:
; If you know the smart card PIN, it's good to set it prior to loading from the smartcard/USB token.
$oCert.SmartCardPin = "12345678"

; To let Chilkat discover what smartcard or token is connected, pass an empty string to LoadFromSmartcard.
; When testing in this way, it's best to have only a single smartcard or token connected to the system.
$bSuccess = $oCert.LoadFromSmartcard("")
If ($bSuccess = False) Then
    ConsoleWrite($oCert.LastErrorText & @CRLF)
    ConsoleWrite("Certificate not loaded." & @CRLF)
    Exit
EndIf

; If there are multiple certificates stored on the smartcard/token, then 
; you can be more specific.  See these examples:

; Load a Certificate from an HSM by Common Name
; Load a Certificate from an HSM by Serial Number

; It may be that you need to code at a lower level with a specific
; supported interface, such as PKCS11.
; See these examples:

; Use PKCS11 to Find a Specific Certificate
; Use PKCS11 to Find a Certificate with a Specified Key Usage

; Once you have the desired certificate, pass it to SetSslClientCert.
; Set the certificate to be used for mutual TLS authentication
; (i.e. sets the client-side certificate for two-way TLS authentication)
$bSuccess = $oHttp.SetSslClientCert($oCert)
If ($bSuccess <> True) Then
    ConsoleWrite($oHttp.LastErrorText & @CRLF)
    Exit
EndIf

; At this point, the HTTP object instance is setup with the client-side cert, and any SSL/TLS
; connection will automatically use it if the server demands a client-side cert.