Pascal (Lazarus/Delphi)

PKCS11 Export Public Key from HSM

See more PKCS11 Examples

Demonstrates how to export a public key from a smartcard or 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.Pkcs11,
  Chilkat.PublicKey,
  Chilkat.JsonObject;

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

procedure RunDemo;
var
  success: Boolean;
  pkcs11: TPkcs11;
  pin: string;
  userType: Integer;
  jsonTemplate: TJsonObject;
  pubKeyHandle: LongWord;
  pubKey: TPublicKey;

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;

  //  Use the PKCS11 driver (.dll, .so, .dylib) for your particular HSM.
  //  (The format of the path will change with the operating system.  Obviously, "C:/" is not used on non-Windows systems.
  pkcs11.SharedLibPath := 'C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS1164.dll';

  //  Establish a logged-on session. (We can typically skip the login by passing an empty PIN if only working with public keys)
  //  Use your actual PIN here, or an empty string to skip login.
  pin := '0000';
  userType := 1;
  success := pkcs11.QuickSession(userType,pin);
  if (success = False) then
    begin
      WriteLn(pkcs11.LastErrorText);
      Exit;
    end;

  //  Get the handle of the public key we wish to export.
  //  You can find public keys in many different ways.
  //  This example will search for a public key by label.

  //  Provide a template to find a PKCS11 object.
  jsonTemplate := TJsonObject.Create;

  //  Find the public key with the label "Belgium eHealth".
  jsonTemplate.UpdateString('class','public_key');
  jsonTemplate.UpdateString('label','Belgium eHealth');

  pubKeyHandle := pkcs11.FindObject(jsonTemplate);
  if (pubKeyHandle = 0) then
    begin
      WriteLn(pkcs11.LastErrorText);
      Exit;
    end;

  //  Export to a Chilkat public key object.
  pubKey := TPublicKey.Create;
  success := pkcs11.ExportPublicKey(pubKeyHandle,pubKey);
  if (success = False) then
    begin
      WriteLn(pkcs11.LastErrorText);
      Exit;
    end;

  //  Get the public key as PKCS8 PEM.
  WriteLn(pubKey.GetPem(False));

  pkcs11.Logout();
  pkcs11.CloseSession();


  pkcs11.Free;
  jsonTemplate.Free;
  pubKey.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.