Pascal (Lazarus/Delphi)

PKCS11 Generate Secret Key (such as AES)

See more PKCS11 Examples

Generates a symmetric secret key such as AES on the HSM.

Note: This example requires Chilkat v9.5.0.96 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,
  Chilkat.JsonObject;

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

procedure RunDemo;
var
  success: Boolean;
  pkcs11: TPkcs11;
  pin: string;
  userType: Integer;
  keyType: string;
  json: TJsonObject;
  keyHandle: LongWord;

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.
  pin := '0000';
  userType := 1;
  success := pkcs11.QuickSession(userType,pin);
  if (success = False) then
    begin
      WriteLn(pkcs11.LastErrorText);
      Exit;
    end;

  //  Let's generate a 256-bit AES key on the token, which will exist for the duration of this session.
  //  Symmetric keys, such as AES keys, are typically created (or imported) and used during a single session.

  //  Other possible values for keyType are "AES XTS", "Blowfish", "Twofish", "ChaCha20", and others. 
  //  In virtually all cases, you'll want to create an AES key.
  keyType := 'AES';

  //  Specify attributes and abilities (how this key can be used) by providing a JSON template.
  json := TJsonObject.Create;

  //  The key can be extracted or wrapped.
  json.UpdateBool('extractable',True);

  //  Allow the key to be used for encryption, decryption, wrapping other keys, and unwrapping other keys.
  json.UpdateBool('encrypt',True);
  json.UpdateBool('decrypt',True);
  json.UpdateBool('wrap',True);
  json.UpdateBool('unwrap',True);

  //  Indicate a 256-bit AES key is to be generated by setting the value_len attribute equal to the key size in bytes.
  //  (32 bytes * 8 bits/byte = 256 bits)
  json.UpdateInt('value_len',32);

  keyHandle := pkcs11.GenSecretKey(keyType,json);
  if (keyHandle = 0) then
    begin
      WriteLn(pkcs11.LastErrorText);
      WriteLn('Failed to generate an AES key.');
    end
  else
    begin
      WriteLn('key handle = ' + keyHandle);
      WriteLn('Success.');
    end;

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


  pkcs11.Free;
  json.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.