Adding more parallelism to the AEGIS authenticated encryption algorithms

Frank Denis

Paper 2023/523

Adding more parallelism to the AEGIS authenticated encryption algorithms

Frank Denis

, Fastly Inc.

Abstract

While the round function of the AEGIS authenticated encryption algorithms is highly parallelizable, their mode of operation is not. We introduce two new modes to overcome that limitation: AEGIS-128X and AEGIS-256X, that require minimal changes to existing implementations and retain the security properties of AEGIS-128L and AEGIS-256.

Note: Version 1.2. The parallelism degree was added to the context in order to align with the latest AEGIS draft. The test vectors have been updated.

Metadata

Available format(s): PDF
Category: Secret-key cryptography
Publication info: Preprint.
Keywords: aegis aead parallelism encryption
Contact author(s): fde @ 00f net
History: 2023-12-03: last of 2 revisions; 2023-04-11: received; See all versions
Short URL: https://ia.cr/2023/523
License: CC0

BibTeX

@misc{cryptoeprint:2023/523,
      author = {Frank Denis},
      title = {Adding more parallelism to the {AEGIS} authenticated encryption algorithms},
      howpublished = {Cryptology {ePrint} Archive, Paper 2023/523},
      year = {2023},
      url = {https://eprint.iacr.org/2023/523}
}