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Paper 2021/1574

Ascon PRF, MAC, and Short-Input MAC

Christoph Dobraunig and Maria Eichlseder and Florian Mendel and Martin Schläffer

Abstract

The cipher suite Ascon v1.2 already provides authenticated encryption schemes, hash, and extendable output functions. Furthermore, the underlying permutation is also used in two instances of Isap v2.0, an authenticated encryption scheme designed to provide enhanced robustness against side-channel and fault attacks. In this paper, we enrich the functionality one can get out of Ascon's permutation by providing efficient Pseudorandom Functions (PRFs), a Message Authentication Code (MAC) and a fast short-input PRF for messages up to 128 bits.

Metadata
Available format(s)
PDF
Category
Secret-key cryptography
Publication info
Preprint. MINOR revision.
Keywords
Pseudorandom functionMACAscon
Contact author(s)
ascon @ iaik tugraz at
History
2021-12-03: received
Short URL
https://ia.cr/2021/1574
License
Creative Commons Attribution
CC BY
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