Patent · US Active

Entry/exit architecture for protected device modules

US9087202B2 · kind B2 · utility

3Cited by

2References

30Claims

0Family size

Assignee

Intel Corporation · US

Inventors

Xiaozhu Kang · Fremont, US
Alpa T. Narendra Trivedi · Hillsboro, US
Siddhartha Chhabra · Portland, US
Prashant Dewan · Hillsboro, US
Uday Savagaonkar · Redmond, US
David M. Durham · Beaverton, US

Key dates

Filing date	May 10, 2013
Grant date	Jul 21, 2015
Priority date	—
Expiry date	Aug 21, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG06F2221/034
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

The entry/exit architecture may be a critical component of a protection framework using a secure enclaves-like trust framework for coprocessors. The entry/exit architecture describes steps that may be used to switch securely into a trusted execution environment (entry architecture) and out of the trusted execution environment (exit architecture), at the same time preventing any secure information from leaking to an untrusted environment.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.