category: Security

category: IoT, Security & Automotive

IChannels: Exploiting Current Management Mechanisms to Create Covert Channels in Modern Processors
By Technical Paper Link - 11 Aug, 2021 - Comments: 0

Find technical paper link here. Abstract: "To operate efficiently across a wide range of workloads with varying power requirements, a modern processor applies different current management mechanisms, which briefly throttle instruction execution while they adjust voltage and frequency to accommodate for power-hungry instructions (PHIs) in the instruction stream. Doing so 1) reduces the pow... » read more

Hardware-Enabled Security: Container Platform Security Prototype
By Technical Paper Link - 05 Aug, 2021 - Comments: 0

Date Published: June 2021, NIST Author(s) Michael Bartock (NIST), Murugiah Souppaya (NIST), Jerry Wheeler (Intel), Tim Knoll (Intel), Uttam Shetty (Intel), Ryan Savino (Intel), Joseprabu Inbaraj (AMI), Stefano Righi (AMI), Karen Scarfone (Scarfone Cybersecurity) Abstract In today’s cloud data centers and edge computing, attack surfaces have significantly increased, hacking ha... » read more

Graphene-based PUFs that are reconfigurable and resilient to ML attacks
By Technical Paper Link - 27 Jul, 2021 - Comments: 0

Researchers at Pennsylvania State University propose using graphene to create physically unclonable functions (PUFs) that are energy efficient, scalable, and secure against AI attacks. Abstract "Graphene has a range of properties that makes it suitable for building devices for the Internet of Things. However, the deployment of such devices will also likely require the development of s... » read more

TimeCache: Using Time to Eliminate Cache Side Channels when Sharing Software
By Technical Paper Link - 14 Jun, 2021 - Comments: 0

"Abstract—Timing side channels have been used to extract cryptographic keys and sensitive documents even from trusted enclaves. Specifically, cache side channels created by reuse of shared code or data in the memory hierarchy have been exploited by several known attacks, e.g., evict+reload for recovering an RSA key and Spectre variants for leaking speculatively loaded data. In this paper, we ... » read more

A Novel PUF Using Stochastic Short-Term Memory Time of Oxide-Based RRAM for Embedded Applications
By Technical Paper Link - 31 Mar, 2021 - Comments: 0

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
By Technical Paper Link - 31 Mar, 2021 - Comments: 0

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
By Technical Paper Link - 31 Mar, 2021 - Comments: 0

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
By Technical Paper Link - 03 Mar, 2021 - Comments: 0

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

IoT Cybersecurity Improvement Act of 2020
By Technical Paper Link - 09 Jan, 2021 - Comments: 0

The "IoT Cybersecurity Improvement Act of 2020" became a U.S. law on 12/4/2020.   The legislation was passed by unanimous consent by the Senate and the House of Representatives. Congress.Gov states: "This bill requires the National Institute of Standards and Technology (NIST) and the Office of Management and Budget (OMB) to take specified steps to increase cybersecurity for Internet of ... » read more

The Key is Left under the Mat: On the Inappropriate Security Assumption of Logic Locking Schemes
By Technical Paper Link - 31 Dec, 2020 - Comments: 0

Abstract: "Logic locking has been proposed as an obfuscation technique to protect outsourced IC designs from IP piracy by untrusted entities in the design and fabrication process. In this case, the netlist is locked by adding extra key-gates, and will be unlocked only if a correct key is applied to the key-gates. The key is assumed to be written into a non-volatile memory after the fabricati... » read more

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