(Delphi DLL) Generate RSA Key and Export to Encrypted PEM

Delphi DLL sample showing how to generate an RSA key and export to encrypted PEM.

Note: This example requires Chilkat v11.0.0 or greater.

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

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, PrivateKey, Rsa;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
rsa: HCkRsa;
privKey: HCkPrivateKey;
strEncPem: PWideChar;

begin
success := False;

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

rsa := CkRsa_Create();

// Generate a 1024-bit key.  Chilkat RSA supports
// key sizes ranging from 512 bits to 4096 bits.
privKey := CkPrivateKey_Create();
success := CkRsa_GenKey(rsa,1024,privKey);
if (success = False) then
  begin
    Memo1.Lines.Add(CkRsa__lastErrorText(rsa));
    Exit;
  end;

strEncPem := CkPrivateKey__getPkcs8EncryptedPem(privKey,'myPassword');

// You now have the private key in an encrypted format,
// which may be (for example) saved to a database.

Memo1.Lines.Add(strEncPem);

CkRsa_Dispose(rsa);
CkPrivateKey_Dispose(privKey);

end;