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GeneratingEthereumSignedMessageSignatureInDelphiUnit.pas
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GeneratingEthereumSignedMessageSignatureInDelphiUnit.pas
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{******************************************************************************}
{ }
{ Delphereum }
{ }
{ Copyright(c) 2018 Stefan van As <[email protected]> }
{ Github Repository <https://github.com/svanas/delphereum> }
{ }
{ Distributed under GNU AGPL v3.0 with Commons Clause }
{ }
{ This program is free software: you can redistribute it and/or modify }
{ it under the terms of the GNU Affero General Public License as published }
{ by the Free Software Foundation, either version 3 of the License, or }
{ (at your option) any later version. }
{ }
{ This program is distributed in the hope that it will be useful, }
{ but WITHOUT ANY WARRANTY; without even the implied warranty of }
{ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the }
{ GNU Affero General Public License for more details. }
{ }
{ You should have received a copy of the GNU Affero General Public License }
{ along with this program. If not, see <https://www.gnu.org/licenses/> }
{ }
{******************************************************************************}
// Delphereum Study. Tutorial 'Generating an Ethereum-signed message signature in Delphi'
// Project in Embarcadero Delphi 11 made with source of this tutorial: https://svanas.medium.com/generating-an-ethereum-signed-message-signature-in-delphi-75661ce5031b
// Prepared by Valient Newman <[email protected]>
// My Github Repository <https://github.com/valient-newman>
unit GeneratingEthereumSignedMessageSignatureInDelphiUnit;
interface
uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
uses
web3, web3.eth, web3.eth.types, web3.eth.crypto;
procedure TForm1.Button1Click(Sender: TObject);
begin
ShowMessage(
web3.eth.crypto.sign(
TPrivateKey('b5b1870957d373ef0eeffecc6e4812c0fd08f554b37b233526acc331bf1544f7'),
'Hello, World!'
).ToHex
);
end;
end.