Invention Grant
- Patent Title: Revocation of root certificates
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Application No.: US14279109Application Date: 2014-05-15
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Publication No.: US09621356B2Publication Date: 2017-04-11
- Inventor: Yousuf H. Vaid , Christopher B. Sharp , Medhi Ziat , Li Li , Jerrold Von Hauck , Ramiro Sarmiento , Jean-Marc Padova
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Downey Brand LLP
- Main IPC: H04L9/32
- IPC: H04L9/32

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.
Public/Granted literature
- US20150256345A1 REVOCATION OF ROOT CERTIFICATES Public/Granted day:2015-09-10
Information query