Area Optimization of Lightweight Lattice-Based Encryption on Reconfigurable Hardware

Thomas Pöppelmann, Tim Güneysu

IEEE International Symposium on Circuits and Systemss, ISCAS 2014, Melbourne, Victoria, Australia, June 1-5, 2014


Ideal lattice-based cryptography gained significant attraction in the last years due to its versatility, simplicity and performance in implementations. Nevertheless, existing implementations of encryption schemes reported only results trimmed for high-performance what is certainly not sufficient for all applications in practice. To the contrary, we investigate lightweight aspects and suitable parameter sets for Ring-LWE encryption in this work and show optimizations that enable implementations even with very few resources on a reconfigurable hardware device. Despite of this restriction, we still achieve reasonable throughput that is sufficient for many today's and future applications.

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