B4X

ScMinidriver - Import a Certificate and Private Key to a Smart Card or USB Token

See more ScMinidriver Examples

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.

B4X

Dim success As Boolean = False

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

Dim scmd As ChilkatScMinidriver
scmd.Initialize

'  Reader names (smart card readers or USB tokens) can be discovered
'  via List Readers or Find Smart Cards
Dim readerName As String = "SCM Microsystems Inc. SCR33x USB Smart Card Reader 0"
success = scmd.AcquireContext(readerName)
If success = False Then
    Log(scmd.LastErrorText)
    Return
End If


'  If successful, the name of the currently inserted smart card is available:
Log("Card name: " & scmd.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
Dim pinId As String = "user"
Dim retval As Int = scmd.PinAuthenticate(pinId, "000000")
If retval <> 0 Then
    Log("PIN Authentication failed.")
    scmd.DeleteContext
    Return
End If


Dim cert As ChilkatCert
cert.Initialize("cert")

'  Load the cert + private key from a .p12/.pfx
'  We got this .p12 from https://badssl.com/download/
Dim password As String = "badssl.com"
success = cert.LoadPfxFile("qa_data/pfx/badssl.com-client.p12", password)
If success = False Then
    Log(cert.LastErrorText)
    scmd.DeleteContext
    Return
End If


'  Let's import this certificate as the "signature" key/cert in key container #6.
Dim containerIndex As Int = 6
Dim keySpec As String = "sig"
success = scmd.ImportCert(cert, containerIndex, keySpec, pinId)
If success = False Then
    Log(scmd.LastErrorText)
Else
    Log("Successfully imported the cert + private key onto the smart card.")
End If


'  When finished with operations that required authentication, you may if you wish, deauthenticate the session.
success = scmd.PinDeauthenticate("user")
If success = False Then
    Log(scmd.LastErrorText)
End If


'  Delete the context when finished with the card.
success = scmd.DeleteContext
If success = False Then
    Log(scmd.LastErrorText)
End If