Delphi DLL

PKCS11 Export Public Key from HSM

See more PKCS11 Examples

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

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Pkcs11, PublicKey, JsonObject;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
pkcs11: HCkPkcs11;
pin: PWideChar;
userType: Integer;
jsonTemplate: HCkJsonObject;
pubKeyHandle: Cardinal;
pubKey: HCkPublicKey;

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 := CkPkcs11_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.
CkPkcs11_putSharedLibPath(pkcs11,'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 := CkPkcs11_QuickSession(pkcs11,userType,pin);
if (success = False) then
  begin
    Memo1.Lines.Add(CkPkcs11__lastErrorText(pkcs11));
    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 := CkJsonObject_Create();

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

pubKeyHandle := CkPkcs11_FindObject(pkcs11,jsonTemplate);
if (pubKeyHandle = 0) then
  begin
    Memo1.Lines.Add(CkPkcs11__lastErrorText(pkcs11));
    Exit;
  end;

// Export to a Chilkat public key object.
pubKey := CkPublicKey_Create();
success := CkPkcs11_ExportPublicKey(pkcs11,pubKeyHandle,pubKey);
if (success = False) then
  begin
    Memo1.Lines.Add(CkPkcs11__lastErrorText(pkcs11));
    Exit;
  end;

// Get the public key as PKCS8 PEM.
Memo1.Lines.Add(CkPublicKey__getPem(pubKey,False));

CkPkcs11_Logout(pkcs11);
CkPkcs11_CloseSession(pkcs11);

CkPkcs11_Dispose(pkcs11);
CkJsonObject_Dispose(jsonTemplate);
CkPublicKey_Dispose(pubKey);

end;