Lazarus Pascal

Example: Crypt2.HashStringENC method

Demonstrates how to call the HashStringENC method. Lazarus Pascal

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.Crypt2;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  crypt: TCrypt2;
  s: string;
  hashStr: string;

begin
  crypt := TCrypt2.Create;

  s := 'får';

  //  The string "får" in utf-8 is composed of these bytes: 0x66 0xC3 0xA5 0x72
  crypt.Charset := 'utf-8';

  crypt.EncodingMode := 'hex_lower';
  crypt.HashAlgorithm := 'sha256';

  //  Get the hex string for the sha-256 hash of the utf-8 byte representation of the string
  hashStr := crypt.HashStringENC(s);

  WriteLn(hashStr);

  //  Output:
  //  cb8f773dd592337ed7f928012a60f48e1efb357beeda124a54461410e216fece


  crypt.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.