Speeding Up OMD Instantiations in Hardware

Diana Maimut; Alexandru Stefan Mega

Paper 2019/1351

Speeding Up OMD Instantiations in Hardware

Diana Maimut and Alexandru Stefan Mega

Abstract

Particular instantiations of the Offset Merkle Damgaard authenticated encryption scheme (OMD) represent highly secure alternatives for AES-GCM. It is already a fact that OMD can be efficiently implemented in software. Given this, in our paper we focus on speeding-up OMD in hardware, more precisely on FPGA platforms. Thus, we propose a new OMD instantiation based on the compression function of BLAKE2b. Moreover, to the best of our knowledge, we present the first FPGA implementation results for the SHA-512 instantiation of OMD as well as the first architecture of an online authenticated encryption system based on OMD.

Metadata

Available format(s): PDF
Category: Implementation
Publication info: Published elsewhere. SECITC 2019
Keywords: Authenticated encryption pseudorandom function compression function provable security FPGA hardware optimization nonce respecting adversaries.
Contact author(s): maimut diana @ gmail com
History: 2019-11-27: received
Short URL: https://ia.cr/2019/1351
License: CC BY

BibTeX

@misc{cryptoeprint:2019/1351,
      author = {Diana Maimut and Alexandru Stefan Mega},
      title = {Speeding Up {OMD} Instantiations in Hardware},
      howpublished = {Cryptology {ePrint} Archive, Paper 2019/1351},
      year = {2019},
      url = {https://eprint.iacr.org/2019/1351}
}