IP Control of LG TVs

[admin]

Try this function:

Code:

function receive(sock)
  local iv = sock:receive(16)
  if not iv then
    return nil, 'cannot receive iv'
  end

  local aes_128_ecb, err = aes:new(key, nil, aes.cipher(128, 'ecb'), { iv = string.rep('\0', 16) }, nil, 0)

  local ivdec = aes_128_ecb:decrypt(iv)
  local aes_128_cbc, err = aes:new(key, nil, aes.cipher(128, 'cbc'), { iv = ivdec }, nil, 0)

  local buf = ''
  sock:settimeout(0.1)

  while true do
    local data, err = sock:receive(16)
    if data then
      buf = buf .. data
    else
      break
    end
  end

  sock:settimeout(3)

  if #buf > 0 then
    return aes_128_cbc:decrypt(buf)
  else
    return nil, 'receive failed'
  end
end

Use this like this:

Code:

reply, err = receive(sock)
log(reply, err)