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(Excel) 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. In the next version, Chilkat will be releasing a Pkcs11 class to support Linux, MacOSX, and possibly other operating systems.

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

Dim scmd As Chilkat.ScMinidriver
Set scmd = Chilkat.NewScMinidriver

' Reader names (smart card readers or USB tokens) can be discovered
' via List Readers or Find Smart Cards

readerName = "SCM Microsystems Inc. SCR33x USB Smart Card Reader 0"

success = scmd.AcquireContext(readerName)
If (success = False) Then
    Debug.Print scmd.LastErrorText
    Exit Sub
End If

' If successful, the name of the currently inserted smart card is available:
Debug.Print "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

pinId = "user"

retval = scmd.PinAuthenticate(pinId,"000000")
If (retval <> 0) Then
    Debug.Print "PIN Authentication failed."
    Dim success As Boolean
    success = scmd.DeleteContext()
    Exit Sub
End If

Dim cert As Chilkat.Cert
Set cert = Chilkat.NewCert

' Load the cert + private key from a .p12/.pfx
' We got this .p12 from https://badssl.com/download/

password = "badssl.com"
success = cert.LoadPfxFile("qa_data/pfx/badssl.com-client.p12",password)
If (success = False) Then
    Debug.Print cert.LastErrorText
    success = scmd.DeleteContext()
    Exit Sub
End If

' Let's import this certificate as the "signature" key/cert in key container #6.

containerIndex = 6

keySpec = "sig"
success = scmd.ImportCert(cert,containerIndex,keySpec,pinId)
If (success = False) Then
    Debug.Print scmd.LastErrorText
Else
    Debug.Print "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
    Debug.Print scmd.LastErrorText
End If

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


 

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