Invention Grant
- Patent Title: Secure circuit for encryption key generation
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Application No.: US15173643Application Date: 2016-06-04
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Publication No.: US10079677B2Publication Date: 2018-09-18
- Inventor: Wade Benson , Libor Sykora , Vratislav Kuzela , Michael Brouwer , Andrew R. Whalley , Jerrold V. Hauck , David Finkelstein , Thomas Mensch
- Applicant: Apple Inc.
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Main IPC: H04L29/06
- IPC: H04L29/06 ; H04L9/08 ; H04L9/32 ; H04L9/00 ; G06F21/32 ; H04L9/14

Abstract:
Techniques are disclosed relating to relating to a public key infrastructure (PKI). In one embodiment, an integrated circuit is disclosed that includes at least one processor and a secure circuit isolated from access by the processor except through a mailbox mechanism. The secure circuit is configured to generate a key pair having a public key and a private key, and to issue, to a certificate authority (CA), a certificate signing request (CSR) for a certificate corresponding to the key pair. In some embodiments, the secure circuit may be configured to receive, via the mailbox mechanism, a first request from an application executing on the processor to issue a certificate to the application. The secure circuit may also be configured to perform, in response to a second request, a cryptographic operation using a public key circuit included in the secure circuit.
Public/Granted literature
- US20170373843A1 SECURE CIRCUIT FOR ENCRYPTION KEY GENERATION Public/Granted day:2017-12-28
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