Paper 2024/1186
MATTER: A Wide-Block Tweakable Block Cipher
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.
Metadata
- Available format(s)
-
PDF
- Category
- Secret-key cryptography
- Publication info
- Preprint.
- Keywords
- Tweakable Block CiphersLightweight CryptographyWide-Block CiphersMemory Encryption
- Contact author(s)
-
roberto avanzi@gmail com
orrd@cs haifa ac il - History
- 2024-07-25: revised
- 2024-07-23: received
- See all versions
- Short URL
- https://ia.cr/2024/1186
- License
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CC BY-NC-ND
BibTeX
@misc{cryptoeprint:2024/1186, author = {Roberto Avanzi and Orr Dunkelman and Kazuhiko Minematsu}, title = {{MATTER}: A Wide-Block Tweakable Block Cipher}, howpublished = {Cryptology {ePrint} Archive, Paper 2024/1186}, year = {2024}, url = {https://eprint.iacr.org/2024/1186} }