Amigo: Proximity-based Authentication of Mobile Devices

Google Tech Talks July 12, 2007 ABSTRACT Secure and spontaneous communication between wireless devices that come within close proximity of each other, but lack a pre-existing trust relationship -- devices that are previously unknown to each other -- is an important component of many future pervasive applications. For example, patrons at a bar, guests at a party or conference participants may use their mobile phones to exchange private contact information over Bluetooth or WiFi. Consumers may use their mobile devices as electronic wallets to pay for tickets at the train station or groceries at the store. A user may take advantage of resources available in the environment by pairing their mobile...