Delphi ActiveX

ScMinidriver - Import Private Key to Smart Card

See more ScMinidriver Examples

Demonstrates how to import a private key to the "signature" or "key exchange" location in the Nth key container on a smart card. Delphi ActiveX

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Integer;
privKey: TPrivateKey;
scmd: TChilkatScMinidriver;
readerName: WideString;
pinId: WideString;
retval: Integer;

begin
success := 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 before importing a private key.
// 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_md_t0.JPG/endImage)

// First let's load a private key into the Chilkat private key object.
// (Chilkat provides the ability to load private keys from many different sources and formats.
// this example loads from a PEM file.)
privKey := TPrivateKey.Create(Self);
success := privKey.LoadPemFile('qa_data/rsa/rsaPrivKey_pkcs8.pem');
if (success = 0) then
  begin
    Memo1.Lines.Add(privKey.LastErrorText);
    Exit;
  end;

scmd := TChilkatScMinidriver.Create(Self);

// 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
readerName := 'Alcor Micro USB Smart Card Reader 0';
success := scmd.AcquireContext(readerName);
if (success = 0) then
  begin
    Memo1.Lines.Add(scmd.LastErrorText);
    Exit;
  end;

// If successful, the name of the currently inserted smart card is available:
Memo1.Lines.Add('Card name: ' + scmd.CardName);

// To import a 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,'0000');
if (retval <> 0) then
  begin
    Memo1.Lines.Add('PIN Authentication failed.');
    scmd.DeleteContext();
    Exit;
  end;

// Let's import into the "key exchange" position in key container #7.
success := scmd.ImportKey(7,'kex',privKey.ControlInterface,'user');
if (success = 0) then
  begin
    Memo1.Lines.Add('PIN Authentication failed.');
    scmd.DeleteContext();
    Exit;
  end;

scmd.DeleteContext();

Memo1.Lines.Add('Success.');

// Here's the MGTEK view of the smart card after importing the private key:
// (image:https://example-code.com/images/gemalto_idprime_after_key_import.JPG/endImage)
end;