[Resource Topic] 2024/1186: MATTER: A Wide-Block Tweakable Block Cipher

Welcome to the resource topic for 2024/1186

Title:
MATTER: A Wide-Block Tweakable Block Cipher

Authors: Roberto Avanzi, Orr Dunkelman, Kazuhiko Minematsu

Abstract:

In this note, we introduce the MATTER Tweakable Block Cipher, designed principally for low latency in low-area hardware implementations, but that can also be implemented in an efficient and compact way in software.

MATTER is a 512-bit wide balanced Feistel network with three to six rounds, using the ASCON permutation as the round function.
The Feistel network defines a keyed, non-tweakable core, which is made tweakable by using the encryption of the tweak as its key.
Key and tweak are 320-bit inputs.

MATTER is particularly suitable for use in an OCB-like mode of operation, with an encrypted checksum for authentication.

ePrint: https://eprint.iacr.org/2024/1186

See all topics related to this paper.

Feel free to post resources that are related to this paper below.

Example resources include: implementations, explanation materials, talks, slides, links to previous discussions on other websites.

For more information, see the rules for Resource Topics .