Hybrid Boolean Networks as Physically Unclonable Functions


Abstract: "We introduce a Physically Unclonable Function (PUF) based on an ultra-fast chaotic network known as a Hybrid Boolean Network (HBN) implemented on a field programmable gate array. The network, consisting of N coupled asynchronous logic gates displaying dynamics on the sub-nanosecond time scale, acts as a `digital fingerprint' by amplifying small manufacturing variations during a peri... » read more

Manufacturing Bits: Nov. 3


Zeptosecond measurements A group of researchers have set a new world’s record for the shortest timespan measurement. DESY, Fritz-Haber-Institute and Goethe University Frankfurt have measured how long it takes for a photon to cross a hydrogen molecule. The result? About 247 zeptoseconds. A zeptosecond is a trillionth of a billionth of a second (10-21 seconds). This is said to be the sh... » read more

Power/Performance Bits: May 28


Archival storage Researchers at Harvard University and Northwestern University propose a method of long-lived archival data storage using low-weight molecules. DNA has been explored as a method of archival storage, but the researchers argue that it is inadequate, as the DNA macromolecule is large and requires skilled, repetitive labor to encode and read. Instead, the researchers turned... » read more

System Bits: April 16


Characterizing 2D borophene Researchers at Rice and Northwestern universities collaborated on a method to view the polymorphs of 2D borophene crystals, providing insights into the lattice configurations of the two-dimensional material. Boris Yakobson, a materials physicist at Rice’s Brown School of Engineering, and materials scientist Mark Hersam of Northwestern led a team that not only d... » read more

Power/Performance Bits: Mar. 26


Material holds both electrons, holes Researchers at Ohio State University discovered a material that can hold both electrons and holes. They hope the material, the layered metal crystal NaSn2As2, could simplify electronics, potentially removing the need for multiple layers or materials. "It is this dogma in science, that you have electrons or you have holes, but you don't have both. But our... » read more

Week in Review: IoT, Security, Auto


Internet of Things DHL Supply Chain reports that it will spend $300 million to install Internet of Things sensors and collaborative robots in its North American warehouses, bringing 60% of those facilities up to automation capabilities already implemented in 85 of DHL’s 430 warehouses in North America. The company will also employ robotic process automation software and other programs to red... » read more

System Bits: March 3


Observing antiferromagnetic order in ultracold atoms Rice University researchers have simulated superconducting materials and made headway on a problem that’s vexed physicists for nearly three decades using ultracold atoms as a stand-in for electrons. The research team, led by Rice, included researchers from Ohio State University, Universidade Federal do Rio de Janeiro, University of Cal... » read more

System Bits: Sept. 17


Multicore memory management According to MIT researchers, it may be time to let software rather than hardware manage high-speed on-chip memory caches. Traditionally, managing the caches has required fairly simple algorithms that can be hard-wired into the chips but as multiple cores in SoCs proliferate, cache management becomes much more difficult. As such, MIT’s Department of Electric... » read more

System Bits: Aug. 27


Material that conducts and insulates It is well known to scientists that the three common phases of water – ice, liquid and vapor – can exist stably together only at a particular temperature and pressure, called the triple point. Also well known is that the solid form of many materials can have numerous phases, but it is difficult to pinpoint the temperature and pressure for the points at ... » read more

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