DEVICE PAIRING WITH OPTICAL CODES

    公开(公告)号:US20210051016A1

    公开(公告)日:2021-02-18

    申请号:US16947339

    申请日:2020-07-29

    Applicant: Snap Inc

    Abstract: Embodiments for device pairing using optical codes are described. One embodiment is a wearable device with an image sensor configured to capture an image including a first optical code from a first host device. The wearable device decodes the first optical code, and in response to the first optical code, initiates broadcast of a pairing advertisement. The host device displays a second optical code in response to the pairing advertisement, and the wearable device captures and processes the second optical code to determine a host pairing advertisement code. The wearable device then, in response to the second optical code, initiate broadcast of a second pairing advertisement including the host pairing advertisement code. In various embodiments, a secure wireless channel is then established and used for further secure communications.

    Wearable device pairing with optical codes

    公开(公告)号:US10581608B2

    公开(公告)日:2020-03-03

    申请号:US15716164

    申请日:2017-09-26

    Applicant: Snap Inc.

    Abstract: Embodiments for device pairing using optical codes are described. One embodiment is a host device with a memory and one or more processors configured to pair the host device with a wearable device. The paring involves generating and displaying an image including a first optical code, decoding decode a pairing advertisement from the wearable device, generating a second optical code, the second optical code comprising a host pairing advertisement code, and decoding a second pairing advertisement including the host pairing advertisement code. Additional embodiments involve, in response to the second pairing advertisement, establishing a communication channel between the host device and the wearable device, communicating keys between the host and wearable device, and using an application-level elliptic curve Diffie-Hellman (ECDH) exchange with the first key and the second key to establish a shared secret.

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