ISAP+: ISAP with Fast Authentication

ePrint Report: ISAP+: ISAP with Fast Authentication

Arghya Bhattacharjee, Avik Chakraborti, Nilanjan Datta, Cuauhtemoc Mancillas-López, Mridul Nandi

This paper analyses the lightweight, sponge-based NAEAD mode $\textsf{ISAP}$, one of the finalists of the NIST Lightweight Cryptography (LWC) standardisation project, that achieves high-throughput with inherent protection against differential power analysis (DPA). We observe that $\textsf{ISAP}$ requires $256$-bit capacity in the authentication module to satisfy the NIST LWC security criteria. In this paper, we study the analysis carefully and observe that this is …

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