Xbase++

ScMinidriver - Delete Smart Card Key Container

See more ScMinidriver Examples

Demonstrates how to delete the contents of a key container on a smart card (or USB token). Xbase++

LOCAL nSuccess
LOCAL oScmd
LOCAL cReaderName
LOCAL cPinId
LOCAL nRetval

nSuccess := 0

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

//  Chilkat recommends the following free tool for interactively examining the contents of your smart card
//  through the ScMinidriver interface:  MGTEK Tool for Minidriver enabled Smart Cards

//  Let's first look at our smart card..
//  Here's the view of the card we happen to be using: a Gemalto (Thales) IDPrime MD T=0 smart card.

//  (image:https://example-code.com/images/gemalto_idprime_after_key_import.JPG/endImage)

oScmd := CreateObject("Chilkat.ScMinidriver")

//  First we need to acquire a context to the smart card in the reader where it is inserted.
//  Reader names (smart card readers or USB tokens) can be discovered
//  via List Readers or Find Smart Cards
cReaderName := "Alcor Micro USB Smart Card Reader 0"
nSuccess := oScmd:AcquireContext(cReaderName)
IF (nSuccess == 0)
    ? oScmd:LastErrorText
    oScmd:destroy()
    RETURN
ENDIF

//  If successful, the name of the currently inserted smart card is available:
? "Card name: " + oScmd:CardName

//  To delete the contents of a key container, we'll need to be PIN authenticated..

//  For more details about smart card PIN authentication, see the Smart Card PIN Authentication Example
cPinId := "user"
nRetval := oScmd:PinAuthenticate(cPinId, "0000")
IF (nRetval != 0)
    ? "PIN Authentication failed."
    oScmd:DeleteContext()
    oScmd:destroy()
    RETURN
ENDIF

//  Let's delete the contents of key container #7
//  This deletes both keys (signature key and "key exchange" key) that might be present in the key container.
//  (It is not possible to delete just one or the other.)
nSuccess := oScmd:DeleteKeyContainer(7)
IF (nSuccess == 0)
    ? oScmd:LastErrorText
    oScmd:DeleteContext()
    oScmd:destroy()
    RETURN
ENDIF

oScmd:DeleteContext()
? "Successfully delete the contents of key container #7"

oScmd:destroy()