Welcome to the resource topic for 2019/184
Title:
Face-off between the CAESAR Lightweight Finalists: ACORN vs. Ascon
Authors: William Diehl, Farnoud Farahmand, Abubakr Abdulgadir, Jens-Peter Kaps, Kris Gaj
Abstract:Authenticated ciphers potentially provide resource savings and security improvements over the joint use of secret-key ciphers and message authentication codes. The CAESAR competition has aimed to choose the most suitable authenticated ciphers for several categories of applications, including a lightweight use case, for which the primary criteria are performance in resource-constrained devices, and ease of protection against side channel attacks (SCA). In March 2018, two of the candidates from this category, ACORN and Ascon, were selected as CAESAR contest finalists. In this research, we compare two SCA-resistant FPGA implementations of ACORN and Ascon, where one set of implementations has area consumption nearly equivalent to the defacto standard AES-GCM, and the other set has throughput (TP) close to that of AES-GCM. The results show that protected implementations of ACORN and Ascon, with area consumption less than but close to AES-GCM, have 23.3 and 2.5 times, respectively, the TP of AES-GCM. Likewise, implementations of ACORN and Ascon with TP greater than but close to AES-GCM, consume 18 percent and 74 percent of the area, respectively, of AES-GCM.
ePrint: https://eprint.iacr.org/2019/184
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