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:
Apr. 11, 2017
Filed:
May. 15, 2014
Apple Inc., Cupertino, CA (US);
Yousuf H. Vaid, Fremont, CA (US);
Christopher B. Sharp, Cupertino, CA (US);
Medhi Ziat, San Francisco, CA (US);
Li Li, Los Altos, CA (US);
Jerrold Von Hauck, Windermere, FL (US);
Ramiro Sarmiento, San Ramon, CA (US);
Jean-Marc Padova, San Francisco, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Disclosed herein is a technique for revoking a root certificate from at least one client device. In particular, the technique involves causing a secure element—which is included in the at least one client device and is configured to store the root certificate as well as at least one backup root certificate—to permanently disregard the root certificate and prevent the at least one client device from utilizing the specific root certificate. According to one embodiment, this revocation occurs in response to a receiving a revocation message that directly targets the root certificate, where the message includes at least two levels of authentication that are verified by the secure element prior to carrying out the revocation. Once the root certificate is revoked, the secure element can continue to utilize the at least one backup root certificate, while permanently disregarding the revoked root certificate.