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1. (WO2018140168) ADDRESSING A TRUSTED EXECUTION ENVIRONMENT

Pub. No.:    WO/2018/140168    International Application No.:    PCT/US2017/067459
Publication Date: Fri Aug 03 01:59:59 CEST 2018 International Filing Date: Thu Dec 21 00:59:59 CET 2017
IPC: H04L 29/06
G06F 21/53
H04L 9/32
G06F 21/57
Applicants: MICROSOFT TECHNOLOGY LICENSING, LLC
Inventors: NOVAK, Mark, F.
Title: ADDRESSING A TRUSTED EXECUTION ENVIRONMENT
Abstract:
Methods, systems, and devices are described herein for delivering protected data to a trusted execution environment (TrEE) associated with a potentially untrusted requestor. In one aspect, a targeting protocol head may receive a request for protected data from a potentially untrusted requestor associated with a TrEE, and an attestation statement of the TrEE. The targeting protocol head may retrieve the protected data, and obtain a targeting key of the TrEE from, for example, the request in the case of clean room provisioning, or the attestation statement. The targeting protocol head may generate targeted protected data by encrypting the protected data with the targeting key, and provide the targeted protected data to the potentially untrusted requestor, where a private targeting key of the TrEE is required to decrypt the targeted protected data.