Delphi ActiveX

Base64url Encoding

See more Encryption Examples

Base64url encoding is identical to base64 encoding except it uses non-reserved URL characters (e.g. '–' is used instead of '+', and '_' is used instead of '/') and it omits the padding characters. Delphi ActiveX

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
success: Integer;
pkey: TPrivateKey;
rsa: TChilkatRsa;
strData: WideString;
strSig: WideString;

begin
success := 0;

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

pkey := TPrivateKey.Create(Self);
rsa := TChilkatRsa.Create(Self);
rsa.GenKey(1024,pkey.ControlInterface);
rsa.UsePrivateKey(pkey.ControlInterface);

strData := 'This is the string to be signed.';

// Get the signature in base64url
rsa.EncodingMode := 'base64url';
strSig := rsa.SignStringENC(strData,'sha256');

Memo1.Lines.Add(strSig);
end;