(Delphi ActiveX) PKCS11 Export Public Key from HSM

See more PKCS11 Examples

Demonstrates how to export a public key from a smartcard or token.

Note: This example requires Chilkat v9.5.0.96 or later.

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

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
pkcs11: TChilkatPkcs11;
pin: WideString;
userType: Integer;
success: Integer;
jsonTemplate: TChilkatJsonObject;
pubKeyHandle: Cardinal;
pubKey: TPublicKey;

begin
// 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 := TChilkatPkcs11.Create(Self);

// 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 = 0) then
  begin
    Memo1.Lines.Add(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 := TChilkatJsonObject.Create(Self);

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

pubKeyHandle := pkcs11.FindObject(jsonTemplate.ControlInterface);
if (pubKeyHandle = 0) then
  begin
    Memo1.Lines.Add(pkcs11.LastErrorText);
    Exit;
  end;

// Export to a Chilkat public key object.
pubKey := TPublicKey.Create(Self);
success := pkcs11.ExportPublicKey(pubKeyHandle,pubKey.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(pkcs11.LastErrorText);
    Exit;
  end;

// Get the public key as PKCS8 PEM.
Memo1.Lines.Add(pubKey.GetPem(0));

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