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ScMinidriver - Get Public Keys from Smart Card Key Container

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Demonstrates how to query a key container on a smart card (or USB token) to get the public part of the private keys that are present. A key container can hold two separate private keys -- one in the "signature" position, and the other in the "key exchange" position. AutoIt

Local $bSuccess = False

;  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 our Gemalto (Thales) IDPrime MD T=0 smart card in the MGTEK tool:

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

$oScmd = ObjCreate("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
Local $sReaderName = "Alcor Micro USB Smart Card Reader 0"
$bSuccess = $oScmd.AcquireContext($sReaderName)
If ($bSuccess = False) Then
    ConsoleWrite($oScmd.LastErrorText & @CRLF)
    Exit
EndIf

;  If successful, the name of the currently inserted smart card is available:
ConsoleWrite("Card name: " & $oScmd.CardName & @CRLF)

;  We likely shouldn't need to authenticate with the smart card (use a PIN) to simply get a public key,
;  so we can skip the PIN authenticatin step..

;  Let's get the key(s) present in Container #7.
;  In our case (shown in the image above), there is a private key in the "key exchange" position, but no key in the "signature" position.
$oPubkey_sig = ObjCreate("Chilkat.PublicKey")
$oPubkey_kex = ObjCreate("Chilkat.PublicKey")

$bSuccess = $oScmd.GetContainerKeys(7,$oPubkey_sig,$oPubkey_kex)
If ($bSuccess = False) Then
    ConsoleWrite($oScmd.LastErrorText & @CRLF)
    Exit
EndIf

If ($oPubkey_sig.Empty = True) Then
    ConsoleWrite("No signature key is present." & @CRLF)
Else
    ConsoleWrite("Signature key:" & @CRLF)
    ConsoleWrite($oPubkey_sig.GetPem(True) & @CRLF)
EndIf

If ($oPubkey_kex.Empty = True) Then
    ConsoleWrite("No Key Exchange key is present." & @CRLF)
Else
    ConsoleWrite("Key Exchange key:" & @CRLF)
    ConsoleWrite($oPubkey_kex.GetPem(True) & @CRLF)
EndIf

$oScmd.DeleteContext()

ConsoleWrite("Success." & @CRLF)

;  Here's the output of the above sample code:

;  Card name: IDPrime MD T=0
;  No signature key is present.
;  Key Exchange key:
;  -----BEGIN RSA PUBLIC KEY-----
;  MIIBCgKCAQEAsXeRhM55P13FbpNcXAMR3olbw2Wa6keZIHu5YTZYUBTlYWId+pNi
;  wUz3zFIEo+0IfYR0H27ybIycQO+1IIzJofUFNMAL3tZps2OKPlsjuCPls6kXpXhv
;  /gvhux8LrCtp4PcKWqJ6QVOZKChc7WAx40qFWzHi57ueqRTv3x0kESqGg/VjsqyT
;  Evb55psJO2RsfhLT7+YVh3hImRM3RDaJdkTkPuOxeFyT6N7VXD09329sLuS3QkUb
;  E9zEKDnz9X3d8dEQdJhSI9ba5fxl8R7fu8pB67ElfzFml96X1jLFtzy1pzOT5Fc4
;  ROcaqlYckVzdBq9sxezm6MYmDBjNAcibRwIDAQAB
;  -----END RSA PUBLIC KEY-----