Patent · US Active

Method of authenticating authentication-target apparatus using challenge and response

US11296896B2 · kind B2 · utility

0Cited by

0References

7Claims

0Family size

Assignee

Canon Kabushiki Kaisha · JP

Inventors

Ichiro Iijima · Susono, JP
Kenjiro Hori · Tokorozawa, JP

Key dates

Filing date	Mar 22, 2019
Grant date	Apr 5, 2022
Priority date	—
Expiry date	Jan 18, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH04L9/3242
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A target sends ID of a key table. The apparatus receives the ID. The apparatus sends ID of an authentication table to the target. The apparatus sends a challenge corresponding to a pair of the ID of the key table and the ID of the authentication table, to the target. The target obtains, from the key table, a key corresponding to a pair of the ID of the key table and the ID of the authentication table. The target generates a response from the challenge and the key. The target sends the response to the apparatus. The apparatus obtains, from the authentication table, a response corresponding to a pair of the ID of the key table and the ID of the authentication table. The apparatus authenticates the target based on the responses.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.