I have seen some chromecast devices in hotel rooms have a secure way to let guest stream to their room's TV via a QR code. Anyone knows how this method of authentification is done ?
Is the chromecast hacked or is it an optional feature ?
I have seen some chromecast devices in hotel rooms have a secure way to let guest stream to their room's TV via a QR code. Anyone knows how this method of authentification is done ?
Is the chromecast hacked or is it an optional feature ?
You mean Guest Mode ?
When guest mode is turned on, Chromecast emits a special WiFi beacon. When a Chromecast-enabled app is launched on your guest's mobile device, that device detects the presence of the special Wi-Fi beacon and shows the Cast icon in the application. Upon tapping the Cast icon, casting to a 'Nearby Device' will be listed as an available option.
Your Chromecast then generates a random 4-digit PIN that is required to cast to it using guest mode. When a device nearby tries to connect, the Chromecast automatically transfers that PIN using short, inaudible audio tones. If the audio tone pairing fails, your guest will be given the option to connect manually by entering the 4-digit PIN found on your Chromecast backdrop and in the Google Home app.
It is part of the wireless onboarding function. Since all chromecasts are on the same SSID you should potentially see all of them and be able to cast whatever to your neighbors. This is prevented by a function called airgroup in the wireless controller. By using de QR code you are mapping your wireless devices with the Chromecast in your room. It's has nothing to do with the Chromecast or an Apple TV or any casting device it's only a feature in the wireless network