Leakage Resilient l-more Extractable Hash and Applications to Non-Malleable Cryptography

ePrint Report: Leakage Resilient l-more Extractable Hash and Applications to Non-Malleable Cryptography

Aggelos Kiayias, Feng-Hao Liu, Yiannis Tselekounis

$\ell$-more extractable hash functions were introduced by Kiayias et al. (CCS '16) as a strengthening of extractable hash functions by Goldwasser et al. (Eprint '11) and Bitansky et al. (ITCS '12, Eprint '14). In this work, we define and study an even stronger notion of leakage-resilient $\ell$-more extractable hash functions, and instantiate the notion under the same assumptions used by Kiayias et …

applications cryptography eprint report hash non