Banik, Subhadeep

Bogdanov, Andrey

Regazzoni, Francesco

Internet of things and cyber-physical systems requiring security functionality has pushed for the design of a number of block ciphers and hash functions specifically developed for being implemented in resource constrained devices. Initially the optimization was mainly on area and power consumption, but, nowadays the attention is more on the energy consumption. In this paper, for the first time, we look at energy consumption of lightweight block ciphers implemented in reconfigurable devices, and we analyze the effects that round unrolling might have on the energy consumed during the encryption. Concentrating on applications that require a number of parallel encryptions, we instantiate several designs on the target FPGA and we analyze how the energy consumption varies in each algorithm when changing the amount of unrolled rounds. Our results, obtained on the Xc6slx45t device of the Spartan6 family, demonstrate that Present is the most energy efficient algorithm and that the relation between the energy consumption and the number of unrolled rounds measured on FPGA is similar to the one measured on dedicated hardware

Online Research Database In Technology

Exploring the energy consumption of lightweight blockciphers in FPGA - DTU Orbit(08/11/2017) Exploring the energy consumption of lightweight blockciphers in FPGAInternet of things and cyber-physical systems requiring security functionality has pushed for the design of a number ofblock ciphers and hash functions specifically developed for being implemented in resource constrained devices. Initiallythe optimization was mainly on area and power consumption, but, nowadays the attention is more on the energyconsumption. In this paper, for the first time, we look at energy consumption of lightweight block ciphers implemented inreconfigurable devices, and we analyze the effects that round unrolling might have on the energy consumed during theencryption. Concentrating on applications that require a number of parallel encryptions, we instantiate several designs onthe target FPGA and we analyze how the energy consumption varies in each algorithm when changing the amount ofunrolled rounds. Our results, obtained on the Xc6slx45t device of the Spartan6 family, demonstrate that Present is themost energy efficient algorithm and that the relation between the energy consumption and the number of unrolled roundsmeasured on FPGA is similar to the one measured on dedicated hardware. General informationState: PublishedOrganisations: Department of Applied Mathematics and Computer Science , ALaRI - USIAuthors: Banik, S. (Intern), Bogdanov, A. (Intern), Regazzoni, F. (Ekstern)Pages: 1-6Publication date: 2015 Host publication informationTitle of host publication: Proceedings of 2015 International Conference on Reconfigurable Computing and FPGAs(ReConFig15)Publisher: IEEEEditors: Huebner, M., Gokhale, M., Cumplido, R.ISBN (Print): 978-1-4673-9406-2Main Research Area: Technical/natural sciencesConference: International Conference on Reconfigurable Computing and FPGAs 2015, Cancun, Mexico, 08/12/2014 -08/12/2014DOIs: 10.1109/ReConFig.2015.7393308 Source: FindItSource-ID: 277216966Publication: Research - peer-review › Article in proceedings – Annual report year: 2016 

Exploring the energy consumption of lightweight blockciphers in FPGA

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Exploring the energy consumption of lightweight blockciphers in FPGA

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