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1. (WO2018125325) SECURE DEVICE STATE APPARATUS AND METHOD AND LIFECYCLE MANAGEMENT

Pub. No.:    WO/2018/125325    International Application No.:    PCT/US2017/051676
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Fri Sep 15 01:59:59 CEST 2017
IPC: G11C 7/24
G11C 16/22
G11C 29/36
G11C 29/40
G11C 29/46
G01R 31/317
G01R 31/3185
G06F 21/73
G06F 21/74
G06F 21/75
G06F 21/79
G11C 29/04
G11C 29/44
G11C 17/14
G11C 17/18
Applicants: GOOGLE LLC
Inventors: SCHILDER, Marius
CHEN, Timothy
JOHNSON, Scott
PHAM, Harrison
MARTIN, Derek
Title: SECURE DEVICE STATE APPARATUS AND METHOD AND LIFECYCLE MANAGEMENT
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 device as it transitions from wafer manufacturing to provisioned device. The device states and security levels prevent the semiconductor chip device from being accessed and exploited, for example, during manufacturing testing. A secure boot flow process for a semiconductor chip device 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.