Welcome to the resource topic for 2022/139
Title:
Sponge-based Authenticated Encryption: Security against Quantum Attackers
Authors: Christian Janson, Patrick Struck
Abstract:In this work, we study the security of sponge-based authenticated encryption schemes against quantum attackers. In particular, we analyse the sponge-based authenticated encryption scheme SLAE as put forward by Degabriele et al. (ASIACRYPT’19). We show that the scheme achieves security in the post-quantum (QS1) setting in the quantum random oracle model by using the one-way to hiding lemma. Furthermore, we analyse the scheme in a fully-quantum (QS2) setting. There we provide a set of attacks showing that SLAE does not achieve ciphertext indistinguishability and hence overall does not provide the desired level of security.
ePrint: https://eprint.iacr.org/2022/139
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