Caveat Emptor: A Comparative Study of Secure Device Pairing Methods
The authors presented the first experimental evaluation of prominent device pairing methods. Results show that some simple methods (e.g., Visual Number and Image Comparison) are quite attractive overall, being fast and secure as well as acceptable by users. They naturally appeal to settings where devices have appropriate-quality displays. HAPADEP variant seems to be preferable for more constrained devices: it is fast, error-free and requires very little user intervention. LED Button or vibrate-button is best-suited for devices lacking screens, speakers and microphones.