Welcome to the resource topic for 2015/1085
Title:
Malicious Keccak
Authors: Pawel Morawiecki
Abstract:In this paper, we investigate Keccak — the cryptographic hash function adopted as the SHA-3 standard. We propose a malicious variant of the function, where new round constants are introduced. We show that for such the variant, collision and preimage attacks are possible. We also identify a class of weak keys for the malicious Keccak working in the MAC mode. Ideas presented in the paper were verified by implementing the attacks on the function with the 128-bit hash.
ePrint: https://eprint.iacr.org/2015/1085
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