(Visual FoxPro) ScMinidriver - Import a Certificate and Private Key to a Smart Card or USB Token

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Demonstrates how to import a certificate and its private key to a key container on a smart card or USB token.

Note: This functionality was introduced in Chilkat v9.5.0.87.

Note: The ScMinidriver functionality is for Windows-only because ScMinidriver DLLs only exist on Windows.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

LOCAL loScmd
LOCAL lcReaderName
LOCAL lnSuccess
LOCAL lcPinId
LOCAL lnRetval
LOCAL loCert
LOCAL lcPassword
LOCAL lnContainerIndex
LOCAL lcKeySpec

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

* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.ScMinidriver')
loScmd = CreateObject('Chilkat.ScMinidriver')

* Reader names (smart card readers or USB tokens) can be discovered
* via List Readers or Find Smart Cards
lcReaderName = "SCM Microsystems Inc. SCR33x USB Smart Card Reader 0"
lnSuccess = loScmd.AcquireContext(lcReaderName)
IF (lnSuccess = 0) THEN
    ? loScmd.LastErrorText
    RELEASE loScmd
    CANCEL
ENDIF

* If successful, the name of the currently inserted smart card is available:
? "Card name: " + loScmd.CardName

* To import a cert + private key, we'll need to be PIN authenticated.
* For more details about smart card PIN authentication, see the Smart Card PIN Authentication Example
lcPinId = "user"
lnRetval = loScmd.PinAuthenticate(lcPinId,"000000")
IF (lnRetval <> 0) THEN
    ? "PIN Authentication failed."
    loScmd.DeleteContext()
    RELEASE loScmd
    CANCEL
ENDIF

* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Cert')
loCert = CreateObject('Chilkat.Cert')

* Load the cert + private key from a .p12/.pfx
* We got this .p12 from https://badssl.com/download/
lcPassword = "badssl.com"
lnSuccess = loCert.LoadPfxFile("qa_data/pfx/badssl.com-client.p12",lcPassword)
IF (lnSuccess = 0) THEN
    ? loCert.LastErrorText
    loScmd.DeleteContext()
    RELEASE loScmd
    RELEASE loCert
    CANCEL
ENDIF

* Let's import this certificate as the "signature" key/cert in key container #6.
lnContainerIndex = 6
lcKeySpec = "sig"
lnSuccess = loScmd.ImportCert(loCert,lnContainerIndex,lcKeySpec,lcPinId)
IF (lnSuccess = 0) THEN
    ? loScmd.LastErrorText
ELSE
    ? "Successfully imported the cert + private key onto the smart card."
ENDIF

* When finished with operations that required authentication, you may if you wish, deauthenticate the session.
lnSuccess = loScmd.PinDeauthenticate("user")
IF (lnSuccess = 0) THEN
    ? loScmd.LastErrorText
ENDIF

* Delete the context when finished with the card.
lnSuccess = loScmd.DeleteContext()
IF (lnSuccess = 0) THEN
    ? loScmd.LastErrorText
ENDIF

RELEASE loScmd
RELEASE loCert