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Chosen-Plaintext Attack on Energy-Efficient Hardware Implementation of GIFT-COFB | IEEE Conference Publication | IEEE Xplore

Chosen-Plaintext Attack on Energy-Efficient Hardware Implementation of GIFT-COFB


Abstract:

Electronic devices are connected now more than ever with the prevalence of the Internet of Things. The ever-increasing communication between these lightweight devices pre...Show More

Abstract:

Electronic devices are connected now more than ever with the prevalence of the Internet of Things. The ever-increasing communication between these lightweight devices presses for the need to embed a cryptographic mechanism to ensure the confidentiality and authentication of data. Lightweight cryptography nicely supports the need for encryption mechanisms on IoT devices with limited memory, storage, and computing capability. This paper focuses on breaking the hardware implementation of GIFT-COFB, one of NIST's Lightweight Cryptography finalists. The 2-round partial unrolled design of GIFT-COFB is shown to be the most energy-efficient among all other r-round partial unrolling and fully unrolled settings [1]. In this paper, we propose a chosen-plaintext attack to retrieve the master key K effectively and demonstrate the feasibility of our proposed attack on the 2-round partial unrolled GIFT-COFB. Our efficient attack can derive the secret key by exploiting the nonlinearity of the Sboxes with a worst-case complexity of O(2^{4}).
Date of Conference: 27-30 June 2022
Date Added to IEEE Xplore: 09 August 2022
ISBN Information:
Conference Location: McLean, VA, USA

References

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