Patent · US Active

Obtaining and using time information on a secure element (SE)

US10523447B2 · kind B2 · utility

9Cited by
3References
20Claims
0Family size

Assignee

Inventor

Key dates

Filing dateFeb 24, 2017
Grant dateDec 31, 2019
Priority date—
Expiry dateAug 29, 2037

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L63/0823
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

A secure element (SE) with a notion of time useful for checking secure items is disclosed herein. Use of Public Key Infrastructure (PKI) with secure elements is improved by verifying secure items used by an SE. Methods of obtaining time information by the SE include push, pull, opportunistic, and local interface methods. The SE uses the time information to evaluate arriving and stored public key certificates and to discard those which fail the evaluation. The SE, in some embodiments, uses the time information in cooperation with certificate revocation lists (CRLs) and/or online certificate status protocol (OCSP) stapling procedures.

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