The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 10, 2026
Filed:
Nov. 06, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Kenjiro Hori, Saitama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An authentication target apparatus includes a memory that stores N value pairs each of which includes a preimage value and a verification value used for verification on an intermediate image value derived based on the preimage value. Each verification value is a mapped value that is derived by applying a corresponding preimage value to a function to derive an intermediate image value and then applying the intermediate image value to another function. The apparatus reads the N verification values from the memory, transmits the read N verification values to an authentication system, receives a challenge index from the authentication system, reads a first preimage value corresponding to the challenge index from the memory, derives a first intermediate image value based on the read first preimage value, and transmits the derived first intermediate image value to the authentication system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile