Digital handshake for authentication of devices

摘要

This is directed to a digital handshake for establishing a secure communications path between two electronic devices. Each device can capture an image of the other device using a camera (e.g., a front facing camera or a back facing camera) and extract, from the captured image, a key or seed associated with the other device. For example, each device can display a seed to be identified from an image taken by the other device. Using the extracted keys or seeds, each device can generate, using a same process, an identical digital handshake key. The digital handshake key can then be used to define a secure communications path between the two devices and share information securely. In some embodiments, a digital handshake key can be shared among several devices to create a multi-device secure communications path. Once a communications path has been established, the devices in the path can be identified and authenticated from the digital handshake key to receive access to secured goods, services or information.

主权项

1. A method for authenticating a first device using a second device, comprising:
at the second device: capturing, by a camera of the second device, a first image displayed at the first device, the first image corresponding to a first value stored on the first device; extracting the first value from the first image; displaying, at a display of the second device, a second image corresponding to a second value that is based on the first value extracted from the first image; receiving a handshake key from the first device, wherein the handshake key is based on the first value and the second value, and the second value is extracted from the second image by the first device; and establishing a connection with the first device using the handshake key.