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Reset tree-based optical fault detection.

Dong-Geon Lee¹, Dooho Choi, Jungtaek Seo

¹Computer Engineering Department, Pusan National University, Busan 609-735, Korea. guneez@pusan.ac.kr

Sensors (Basel, Switzerland)

|May 24, 2013

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This study introduces a novel reset tree-based scheme to detect optical fault injection attacks on cryptographic hardware. The new method uses existing reset signal buffers as sensors, enhancing security against powerful invasive attacks.

Area of Science:

Electrical Engineering
Computer Science
Cybersecurity

Background:

Optical fault injection attacks are invasive methods targeting cryptographic hardware by using high-energy light to induce errors.
Existing countermeasures, while effective, do not offer complete protection against these sophisticated attacks.
Secret information, such as cryptographic keys, can be extracted from compromised hardware.

Purpose of the Study:

To propose a new detection scheme for optical fault injection attacks.
To enhance the security of cryptographic hardware against invasive optical attacks.
To present a novel approach utilizing existing circuit components for fault detection.

Main Methods:

A novel reset tree-based scheme is presented.

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The scheme leverages buffers within the reset signal tree as fault detection sensors.

SPICE simulations incorporating radiation-induced current models were performed for evaluation.

Main Results:

The proposed scheme effectively detects optical fault injection attempts.
Simulation results validate the feasibility and effectiveness of the reset tree-based detection method.
The approach demonstrates potential as a supplemental security measure.

Conclusions:

The reset tree-based scheme offers a promising new method for detecting optical fault injection attacks.
Utilizing existing circuit buffers provides an efficient and potentially cost-effective security enhancement.
This technique can serve as an additional layer of defense for cryptographic hardware.