(Lianja) ScMinidriver - Change Smart Card PIN (or USB token PIN)

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Demonstrates how to change the PIN for a smart card or USB token.

Chilkat Lianja Extension Download Chilkat Lianja Extension

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

loScmd = createobject("CkScMinidriver")

// Reader names (smart card readers or USB tokens) can be discovered
// via List Readers or Find Smart Cards
lcReaderName = "Alcor Micro USB Smart Card Reader 0"
llSuccess = loScmd.AcquireContext(lcReaderName)
if (llSuccess = .F.) then
    ? loScmd.LastErrorText
    release loScmd
    return
endif

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

// Change the "user" PIN.  (Typically, you'll always be using the "user" PIN.)
lcCurrentPin = "0000"
lcNewPin = "1234"
lnRetval = loScmd.PinChange("user",lcCurrentPin,lcNewPin)
if (lnRetval = -1) then
    ? "The PIN is already blocked."
    release loScmd
    return
endif

if (lnRetval = -2) then
    ? "The PinChange function failed for some unanticipated reason"
    ? loScmd.LastErrorText
    release loScmd
    return
endif

if (lnRetval = 0) then
    ? "PIN successfully changed."
else
    ? "Current PIN is incorrect."
    ? "Number of attempts remaining = " + str(lnRetval)
endif

loScmd.DeleteContext()


release loScmd