- Patent Title: Secure device state apparatus and method and lifecycle management
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Application No.: US15396052Application Date: 2016-12-30
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Publication No.: US10223531B2Publication Date: 2019-03-05
- Inventor: Marius Schilder , Timothy Chen , Scott Johnson , Harrison Pham , Derek Martin
- Applicant: Google Inc.
- Applicant Address: US CA Mountain View
- Assignee: Google LLC
- Current Assignee: Google LLC
- Current Assignee Address: US CA Mountain View
- Agency: Colby Nipper
- Main IPC: G06F21/57
- IPC: G06F21/57 ; G06F21/30 ; H04L9/08 ; G01R31/3185 ; G01R31/317 ; G06F21/73 ; G06F21/74 ; G06F21/75 ; G06F21/79 ; G11C7/24 ; G11C16/22 ; G11C29/36 ; G11C29/40 ; G11C29/46 ; G11C17/14 ; G11C17/18 ; G11C29/04 ; G11C29/44

Abstract:
A semiconductor chip device include device state fuses that may be used to configure various device states and corresponding security levels for the semiconductor chip as it transitions from wafer manufacturing to provisioned device. The device states and security levels prevent the semiconductor chip from being accessed and exploited, for example, during manufacturing testing. A secure boot flow process for a semiconductor chip over its lifecycle is also disclosed. The secure boot flow may start at the wafer manufacturing stage and continue on through the insertion of keys and firmware.
Public/Granted literature
- US20180189493A1 SECURE DEVICE STATE APPARATUS AND METHOD AND LIFECYCLE MANAGEMENT Public/Granted day:2018-07-05
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