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  • The Inria's Research Teams produce an annual Activity Report presenting their activities and their results of the year. These reports include the team members, the scientific program, the software developed by the team and the new results of the year. The report also describes the grants, contracts and the activities of dissemination and teaching. Finally, the report gives the list of publications of the year.

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Section: New Results

Masking the GLP Lattice-Based Signature Scheme at Any Order

Participants : Benjamin Grégoire, Gilles Barthe [IMDEA] , Sonia Belaïd [CryptoExpert] , Thomas Espitau [UPMC Paris 6] , Pierre-Alain Fouque [Université Rennes 1] , Mélissa Rossi [ENS Paris] , Mehdi Tibouchi [NTT] .

Recently, numerous physical attacks have been demonstrated against lattice based schemes, often exploiting their unique properties such as the reliance on Gaussian distributions, rejection sampling and FFT-based polynomial multiplication. In this work, we describe the first masked implementation of a lattice-based signature scheme. Since masking Gaussian sampling and other procedures involving contrived probability distribution would be prohibitively inefficient, we focus on the GLP scheme. This work is described in [13].