Study of different silicon Physical Unclonable Functions

Sudhanya, P.; Krishnammal, P. Muthu

doi:10.1109/wispnet.2016.7566095

Cited by 8 publications

(3 citation statements)

References 10 publications

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“…Due to security breaches, the use of Non-Volatile Memories (NVMs) is being replaced by Physical Unclonable Functions (PUFs). Built from an entropy source, PUFs help avoiding threats like counterfeiting, reverse engineering and tampering [3] due to their superior resilience to attacks, flexibility and lower cost [4]. A PUF requires an input known as challenge and provides an output known as response.…”

Section: Introductionmentioning

confidence: 99%

Design considerations for a CMOS 65-nm RTN-based PUF

Camacho-Ruiz,

Rubio-Barbero,

Castro-Lopez

et al. 2023

2023 19th International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design (

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Physical Unclonable Functions (PUFs) have emerged as more secure alternatives to traditional Non-Volatile Memories in the field of hardware security. Recently, a novel PUF has been presented that uses the Random Telegraph Noise (RTN) phenomenon as the underlying source of entropy. To turn this concept into an integrated circuit, this paper provides a description of the transistor-level implementation of the PUF as well as a discussion on the constraints and requirements (both in functionality and testing capability) that a silicon implementation brings about. More specifically, the paper explores how to design and physically arrange the core elements of the RTN-PUF to efficiently use the silicon area and attain low PUF response times after a challenge is given.

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Section: Introductionmentioning

confidence: 99%

Design considerations for a CMOS 65-nm RTN-based PUF

Camacho-Ruiz,

Rubio-Barbero,

Castro-Lopez

et al. 2023

2023 19th International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design (

View full text Add to dashboard Cite

show abstract

“…Nowadays, Non-Volatile Memories (NVMs) are widely used as a method to store keys and thus secure sensitive information. However, threats like counterfeiting, reverse engineering, and tampering [1] are becoming serious concerns for the security protocols using NVMs, putting at risk the information stored. In this scenario, Physical Unclonable Functions or PUFs arise as an alternative to traditional NVMs for their superior resilience to attacks, higher flexibility, and lower costs [2].…”

Section: Introductionmentioning

confidence: 99%

A novel Physical Unclonable Function using RTN

Camacho-Ruiz

Castro-López

Roca

et al. 2022

2022 IEEE International Symposium on Circuits and Systems (ISCAS)

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PUFs have emerged as an alternative to traditional Non-Volatile Memories in the field of hardware security. In this paper, a novel PUF is proposed that uses the Random Telegraph Noise phenomenon as the underlying source of entropy. This phenomenon manifests as discrete and random shifts in the drain current of transistors and it is characterized by several parameters like the number of the defects in the device, as well as the emission and capture time constants and current shifts of these defects. Using the recently reported Maximum Current Fluctuation metric, it is possible to condense all this information and use it for the PUF design. By forming pairs of transistors, measuring, and comparing their Maximum Current Fluctuation over a given time interval, we demonstrate using numerical experiments that it is possible to obtain a PUF. Furthermore, the results reported here show that this RTNbased PUF matches, and even outperforms, other silicon PUFs in terms of uniqueness, unpredictability, and reliability with an evident advantage in silicon area.

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“…Security and authentication between devices and/or third parties, essential for many of those tasks, require sensitive data (e.g., cryptographic keys) to be stored in Non-Volatile Memories (NVMs) [1]. However, counterfeiting, reverse engineering, or tampering jeopardizes the privacy of such data [2]. To solve this problem, particularly when area and energy are scarce (as for IoT devices), Physically Unclonable Functions (PUFs) have emerged as a promising lightweight hardware security alternative [3].…”

Section: Introductionmentioning

confidence: 99%

High-level design of a novel PUF based on RTN

Camacho-Ruiz

Castro-López

Roca

et al. 2022

2022 18th International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design (

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Physically Unclonable Functions (PUFs) have emerged as an alternative to traditional Non-Volatile Memories in the field of lightweight hardware security. Recently, a novel PUF has been presented that uses the Random Telegraph Noise (RTN) phenomenon as the underlying source of entropy. While, in general, the nature of that entropy source largely dictates the quality of a PUF, little attention is often paid, however, to how the PUF architecture and its building blocks impact the PUF quality. This paper addresses the high-level design of the novel PUF to ascertain the extent of that impact and refine the building blocks specifications to mitigate it. Using high-level numerical and mixed-signal electrical simulations, the results demonstrate that it is very important to account for nonidealities in the PUF's building blocks to prevent PUF quality degradation.

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Study of different silicon Physical Unclonable Functions

Cited by 8 publications

References 10 publications

Design considerations for a CMOS 65-nm RTN-based PUF

Design considerations for a CMOS 65-nm RTN-based PUF

A novel Physical Unclonable Function using RTN

High-level design of a novel PUF based on RTN

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