File Activation Delphi 2016 Work -

uses System.NetEncoding, System.Hash; function GenerateActivationFile(const MachineID, UserEmail: string; ExpireDays: Integer): string; var ExpireDate: TDateTime; RawData, HashData: string; begin ExpireDate := Now + ExpireDays; RawData := Format('%s|%s|%s', [MachineID, UserEmail, DateToStr(ExpireDate)]); HashData := THashSHA2.GetHashString(RawData, SHA256); Result := TNetEncoding.Base64.Encode(RawData + '|' + HashData); // Save Result to a file, e.g., "activation.key" end;

Here’s a simplified example using Base64 encoding (not secure alone – always use encryption in real apps): file activation delphi 2016

// Optional: Check expiration date if StrToDateDef(Parts[2], 0) < Now then Exit; uses System