The 3GPP Task Force recently supplemented mobile LTE network security with an additional set of confidentiality and integrity algorithms, namely 128-EEA3 and 128-EIA3 built on top of ZUC, a new keystream generator. We contribute two techniques to improve the software performance of these algorithms. We show how delayed modular reduction increases the efficiency of the LFSR feedback function, yielding performance gains for ZUC and thus both 128-EEA3 and 128-EIA3. We also show how to leverage carryless multiplication to evaluate the universal hash function making up the core of 128-EIA3. Our software implementation results on Qualcomm’s Hexagon DSP architecture indicate significant performance gains when employing these techniques: up to roughly a 2.4-fold and a 4-fold throughput improvement for 128-EEA3 and 128-EIA3, respectively.
CITATION STYLE
Avanzi, R., & Brumley, B. B. (2015). Faster 128-EEA3 and 128-EIA3 software. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 7807, pp. 199–208). Springer Verlag. https://doi.org/10.1007/978-3-319-27659-5_14
Mendeley helps you to discover research relevant for your work.