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1. (WO2018162040) HYPERVISOR MEASUREMENT AGENT

Pub. No.:    WO/2018/162040    International Application No.:    PCT/EP2017/055321
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Wed Mar 08 00:59:59 CET 2017
IPC: G06F 21/44
G06F 21/57
G06F 21/74
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
SOVIO, Sampo
Inventors: SOVIO, Sampo
TAKALA, Martti
MANEA, Valentin
SHAIK, Parvez
WU, Liming
Title: HYPERVISOR MEASUREMENT AGENT
Abstract:
An apparatus including a processor and a memory configured to provide a SEE and a REE. The processor is configured to provide a client application configured to execute at a user privilege level and a hypervisor configured to execute at a hypervisor privilege level. The user privilege level is more restrictive than the hypervisor privilege level. The processor is further configured to provide a trusted application configured to execute within the SEE. The trusted application provides secure services to the client application. The processor is configured to send a request for secure services from the client application to the trusted application; send a measurement request to the hypervisor; generate within the hypervisor a measured value based on the client application; return the measured value to the trusted application; and determine whether the client application is authorized to access the secure services. The authorization determination is based on the measured value.