Lazarus Pascal

Example: Crypt2.EncryptEncoded method

Demonstrates how to call the EncryptEncoded 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;
  encrypted: string;
  decrypted: string;

begin
  crypt := TCrypt2.Create;

  crypt.CryptAlgorithm := 'aes';
  crypt.CipherMode := 'cbc';
  crypt.KeyLength := 128;
  crypt.SetEncodedKey('000102030405060708090A0B0C0D0E0F','hex');
  crypt.SetEncodedIV('000102030405060708090A0B0C0D0E0F','hex');

  //  Encrypt the bytes 0x00, 0x01, 0x02, ... 0x0A
  //  and return the encrypted bytes using the lowercase hex encoding.
  crypt.EncodingMode := 'hex_lower';
  encrypted := crypt.EncryptEncoded('000102030405060708090a');
  WriteLn(encrypted);

  //  Output:
  //  9da2ae71a5378487114b430e5e230378

  decrypted := crypt.DecryptEncoded(encrypted);
  WriteLn(decrypted);

  //  Output:
  //  000102030405060708090a


  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.