Pascal (Lazarus/Delphi)

PKCS11 Sessions

See more PKCS11 Examples

Sample code showing how to open a PKCS11 session and then later close it.

Note: This example requires Chilkat v9.5.0.88 or later.

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.Pkcs11;

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

procedure RunDemo;
var
  success: Boolean;
  pkcs11: TPkcs11;
  slotID: Integer;
  readWrite: Boolean;

begin
  success := False;

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

  //  Note: Chilkat's PKCS11 implementation runs on Windows, Linux, Mac OS X, and other supported operating systems.

  pkcs11 := TPkcs11.Create;

  //  Set your shared lib path -- either a full path to the DLL, .so, or .dylib,
  //  or just the filename if the driver is in a location that can be automatically found. (Such as in C:\Windows\System32)
  pkcs11.SharedLibPath := 'ShuttleCsp11_3003.dll';

  //  Starting in Chilkat v9.5.0.96, there is a shorter way to establish
  //  a PKCS11 session with login.
  //  The QuickSession method was added in v9.5.0.96 and is the equivalent of 
  //  calling Initialize, OpenSession, and Login.  

  success := pkcs11.Initialize();
  if (success = False) then
    begin
      WriteLn(pkcs11.LastErrorText);
      Exit;
    end;

  //  Pass -1 for the slotID to open a session on the first non-empty slot.
  slotID := -1;

  //  Open a read/write session.
  readWrite := True;
  success := pkcs11.OpenSession(slotID,readWrite);
  if (success = False) then
    begin
      WriteLn(pkcs11.LastErrorText);
      Exit;
    end;

  //  Do whatever is needed...
  //  ...
  //  ...

  //  When finished, close the session.
  //  It is important to close the session (memory leaks will occur if the session is not properly closed).

  success := pkcs11.CloseSession();
  if (success = False) then
    begin
      WriteLn(pkcs11.LastErrorText);
      Exit;
    end;

  WriteLn('PKCS11 session successfully opened and closed.');


  pkcs11.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.