Pascal (Lazarus/Delphi)

ScMinidriver - List Certificates on a Smart Card or USB Token

See more ScMinidriver Examples

Gets a list of certificates contained on a smart card or USB token. Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.ScMinidriver,
  Chilkat.StringTable;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  scmd: TScMinidriver;
  readerName: string;
  stCerts: TStringTable;
  certPart: string;
  numCerts: Integer;
  i: Integer;

begin
  success := False;

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

  scmd := TScMinidriver.Create;

  //  Reader names (smart card readers or USB tokens) can be discovered
  //  via PCSC List Readers or PCSC Find Smart Cards
  readerName := 'SCM Microsystems Inc. SCR33x USB Smart Card Reader 0';
  success := scmd.AcquireContext(readerName);
  if (success = False) then
    begin
      WriteLn(scmd.LastErrorText);
      Exit;
    end;

  stCerts := TStringTable.Create;

  //  We can choose one of the following items of information to get for each certificate:
  //  "subjectDN" -- Return the full distinguished name of the cert.
  //  "subjectDN_withTags" -- Same as above, but in a format that includes the subject part tags, such as the "CN=" in "CN=something"
  //  "subjectCN" -- Return just the common name part of the certificate's subject.
  //  "serial" -- Return the certificate serial number.
  //  "serial:issuerCN" -- return the certificate serial number + the issuer's common name, delimited with a colon char.
  certPart := 'subjectCN';

  success := scmd.ListCerts(certPart,stCerts);
  if (success = False) then
    begin
      WriteLn(scmd.LastErrorText);
      Exit;
    end;

  numCerts := stCerts.Count;
  i := 0;
  while i < numCerts do
    begin
      WriteLn(i + ': ' + stCerts.StringAt(i));
      i := i + 1;
    end;

  //  Delete the context when finished with the card.
  success := scmd.DeleteContext();
  if (success = False) then
    begin
      WriteLn(scmd.LastErrorText);
    end;


  scmd.Free;
  stCerts.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.