ARADI and LLAMA: Low-Latency Cryptography for Memory Encryption

Patricia Greene; Mark Motley; Bryan Weeks

Paper 2024/1240

ARADI and LLAMA: Low-Latency Cryptography for Memory Encryption

Patricia Greene, National Security Agency

Mark Motley, National Security Agency

Bryan Weeks, National Security Agency

Abstract

In this paper, we describe a low-latency block cipher (ARADI) and authenticated encryption mode (LLAMA) intended to support memory encryption applications.

Note: Revised to correct a typographical error identified by M. Saarinen, and to add a clarifying footnote. Revised to clarify a restriction on the choice of IV length (cf. ePrint 2024/1328).

Metadata

Available format(s): PDF
Category: Secret-key cryptography
Publication info: Preprint.
Keywords: block cipher low-latency SPN
Contact author(s): ppgreen @ nsa gov
mjmotle @ nsa gov
beweeks @ uwe nsa gov
History: 2024-09-05: last of 2 revisions; 2024-08-05: received; See all versions
Short URL: https://ia.cr/2024/1240
License: CC BY

BibTeX

@misc{cryptoeprint:2024/1240,
      author = {Patricia Greene and Mark Motley and Bryan Weeks},
      title = {{ARADI} and {LLAMA}: Low-Latency Cryptography for Memory Encryption},
      howpublished = {Cryptology {ePrint} Archive, Paper 2024/1240},
      year = {2024},
      url = {https://eprint.iacr.org/2024/1240}
}