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Search: authors:"Atul Luykx"

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Beyond Conventional Security in Sponge-Based Authenticated Encryption Modes

The Sponge function is known to achieve \(2^{c/2}\) security, where c is its capacity. This bound was carried over to its keyed variants, such as SpongeWrap, to achieve a \(\min \{2^{c/2},2^\kappa \}\) security bound, with \(\kappa \) the key length. Similarly, many CAESAR competition submissions were designed to comply with the classical \(2^{c/2}\) security bound. We show that...

Connecting tweakable and multi-key blockcipher security

Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2013R1A1A2007488). Atul Luykx is supported by a Fellowship from the Institute for