31,455 research outputs found
Advancing Hardware Security Using Polymorphic and Stochastic Spin-Hall Effect Devices
Protecting intellectual property (IP) in electronic circuits has become a
serious challenge in recent years. Logic locking/encryption and layout
camouflaging are two prominent techniques for IP protection. Most existing
approaches, however, particularly those focused on CMOS integration, incur
excessive design overheads resulting from their need for additional circuit
structures or device-level modifications. This work leverages the innate
polymorphism of an emerging spin-based device, called the giant spin-Hall
effect (GSHE) switch, to simultaneously enable locking and camouflaging within
a single instance. Using the GSHE switch, we propose a powerful primitive that
enables cloaking all the 16 Boolean functions possible for two inputs. We
conduct a comprehensive study using state-of-the-art Boolean satisfiability
(SAT) attacks to demonstrate the superior resilience of the proposed primitive
in comparison to several others in the literature. While we tailor the
primitive for deterministic computation, it can readily support stochastic
computation; we argue that stochastic behavior can break most, if not all,
existing SAT attacks. Finally, we discuss the resilience of the primitive
against various side-channel attacks as well as invasive monitoring at runtime,
which are arguably even more concerning threats than SAT attacks.Comment: Published in Proc. Design, Automation and Test in Europe (DATE) 201
The Maunakea Spectroscopic Explorer Book 2018
(Abridged) This is the Maunakea Spectroscopic Explorer 2018 book. It is
intended as a concise reference guide to all aspects of the scientific and
technical design of MSE, for the international astronomy and engineering
communities, and related agencies. The current version is a status report of
MSE's science goals and their practical implementation, following the System
Conceptual Design Review, held in January 2018. MSE is a planned 10-m class,
wide-field, optical and near-infrared facility, designed to enable
transformative science, while filling a critical missing gap in the emerging
international network of large-scale astronomical facilities. MSE is completely
dedicated to multi-object spectroscopy of samples of between thousands and
millions of astrophysical objects. It will lead the world in this arena, due to
its unique design capabilities: it will boast a large (11.25 m) aperture and
wide (1.52 sq. degree) field of view; it will have the capabilities to observe
at a wide range of spectral resolutions, from R2500 to R40,000, with massive
multiplexing (4332 spectra per exposure, with all spectral resolutions
available at all times), and an on-target observing efficiency of more than
80%. MSE will unveil the composition and dynamics of the faint Universe and is
designed to excel at precision studies of faint astrophysical phenomena. It
will also provide critical follow-up for multi-wavelength imaging surveys, such
as those of the Large Synoptic Survey Telescope, Gaia, Euclid, the Wide Field
Infrared Survey Telescope, the Square Kilometre Array, and the Next Generation
Very Large Array.Comment: 5 chapters, 160 pages, 107 figure
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