Power/Performance Bits: June 1


Stronger PUFs Researchers from Ohio State University and Potomac Research propose a new version of physical unclonable functions, or PUFs, that could be used to create secure ID cards, to track goods in supply chains, and as part of authentication applications. "There's a wealth of information in even the smallest differences found on computers chips that we can exploit to create PUFs," sai... » read more

A Novel PUF Using Stochastic Short-Term Memory Time of Oxide-Based RRAM for Embedded Applications


Abstract: "RRAM suffers from poor retention with short-term memory time when using low compliance current for programing. However, the short-term memory time exhibits ideal randomness, which can be exploited as an entropy source for physically unclonable function (PUF). In this work, we demonstrated a novel PUF utilizing the stochastic short-term memory time of oxide-based RRAM. The proposed P... » read more

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

A Novel Complementary Architecture of One-time-programmable Memory and Its Applications as Physical Unclonable Function (PUF) and One-time Password


Abstract "For the first time, we proposed a 2T complementary architecture of one-time-programmable memory (OTP) in a foundry logic CMOS chip. It was then used to realize the PUF (Physical unclonable function), and the combination with the AI technology to provide a one-time password capability. At first, an OTP was developed based on a novel 2T CMOS unit cell. The experimental results show t... » read more

A Machine-Learning-Resistant 3D PUF with 8-layer Stacking Vertical RRAM and 0.014% Bit Error Rate Using In-Cell Stabilization Scheme for IoT Security Applications


Abstract: "In this work, we propose and demonstrate a multi-layer 3-dimensional (3D) vertical RRAM (VRRAM) PUF with in-cell stabilization scheme to improve both cost efficiency and reliability. An 8-layer VRRAM array was manufactured with excellent uniformity and good endurance of >10 7 . Apart from the variation in RRAM resistance, enhanced randomness is obtained thanks to the parasitic IR... » read more

All-in-One Vs. Point Tools For Security


Security remains an urgent concern for builders of any system that might tempt attackers, but designers find themselves faced with a bewildering array of security options. Some of those are point solutions for specific pieces of the security puzzle. Others bill themselves as all-in-one, where the whole puzzle filled in. Which approach is best depends on the resources you have available and y... » read more

How Physically Unclonable Function (PUF) Technology Protects Embedded Systems


Security experts have been excited about the promise of physically unclonable function (PUF) technology for many years. It wasn't until recently, however, that reliable, cost-effective ICs with integrated PUF technology became available on the market. What's driving all of the excitement over PUF? In this white paper, I'll demystify PUF and highlight how it benefits a variety of embedded system... » read more

What Makes A Chip Tamper-Proof?


The cyber world is the next major battlefield, and attackers are busily looking for ways to disrupt critical infrastructure. There is widespread proof this is happening. “Twenty-six percent of the U.S. power grid was found to be hosting Trojans," said Haydn Povey, IAR Systems' general manager of embedded security solutions. "In a cyber-warfare situation, that's the first thing that would b... » read more

PUF, The Magic IoT Defender


How would you feel if you put hours of effort and your ingenuity into designing a product, only to find cheaper copycats on the market? And what if, over time, those copycats failed and somehow eroded your company’s brand reputation? It happens more often than it should, especially as hackers up their game in sophistication and consumers get attracted to lower cost options. So that’s why... » read more

Week In Review: Auto, Security, Pervasive Computing


Pervasive computing — health An injectable biosensor may someday help measure signs of influenza. DARPA (the U.S. Department of Defense’s Defense Advanced Research Projects Agency) and digital health startup Profusa announced a study that uses Profusa’s Lumee Oxygen Platform to find ways to identify flu outbreaks, biological attacks and pandemics as much as three weeks earlier than curre... » read more

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