Delphi DLL

Load EC Public Key from X,Y Values (easier)

See more ECC Examples

Demonstrates how to load an ECDSA public key from X and Y values using the LoadEcdsa method introduced in Chilkat v9.5.0.85. Delphi DLL

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
x: PWideChar;
y: PWideChar;
pubkey: HCkPublicKey;

begin
success := False;

// Note: This example requires Chilkat v9.5.0.85 or greater.

// We have the following x and y values in hex (for an EC point on the P-256 curve).
x := '1ccbe91c075fc7f4f033bfa248db8fccd3565de94bbfb12f3c59ff46c271bf83';
y := 'ce4014c68811f9a21a1fdb2c0e6113e06db7ca93b7404e78dc7ccd5ca89a4ca9';

pubkey := CkPublicKey_Create();
success := CkPublicKey_LoadEcdsa(pubkey,'secp256r1',x,y);
if (success = False) then
  begin
    Memo1.Lines.Add(CkPublicKey__lastErrorText(pubkey));
    Exit;
  end;

Memo1.Lines.Add('Success.');

CkPublicKey_Dispose(pubkey);

end;