[Resource Topic] 2022/674: A Note on Key Ranking for Optimal Collision Side-Channel Attacks

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Title:
A Note on Key Ranking for Optimal Collision Side-Channel Attacks

Authors: Cezary Glowacz

Abstract:

In “Optimal collision side-channel attacks” (Optimal Collision Side-Channel Attacks) we studied collision side-channel attacks and derived an optimal distinguisher for key ranking. In this note we show that the problem of key ranking using this distinguisher is NP-hard and we provide estimates of lower bounds for secret key ranks in collision side-channel attacks.

ePrint: https://eprint.iacr.org/2022/674

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