Visual registration of camera

Abstract

Visually registering a camera using an optical code and a picture file, including: receiving the picture file and the optical code from the camera, where the optical code includes a public key of the camera; generating a visual challenge using the random number created by the random number generator; transmitting the visual challenge to a user of the camera to capture the visual challenge; receiving the captured visual challenge from the camera; extracting a response from the captured visual challenge; comparing the response to a random number to verify a signature of the captured visual challenge using a public key of the camera and convert an optical code received from the camera into a valid certificate; and registering the camera and adding the valid certificate to the key store.

Description

technical field [0001] The present disclosure relates to the registration of cameras, and more particularly, to the registration of cameras using visual challenges and responses. Background technique [0002] The camera can attach a cryptographic digital signature to a captured picture or video. The purpose of the attachment may include the integrity of the signed information (ie, any alteration of the picture means that the signature is not verified) and the authentication of the issuer (ie, proof that the camera that signed the picture may have generated the signature). However, the second purpose is only valid if the entity verifying the signature can check that the camera claiming the signature actually signed it. [0003] In traditional solutions, the camera holds a cryptographic public-private key pair, which the camera uses to sign pictures or videos with the private key and publish the public key. In this solution, however, the verifier still lacks evidence that th...

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