University of Birmingham > Talks@bham > Computer Science Distinguished Seminars > Discrete Gaussian Sampling over the Integers Using Polar Codes

Discrete Gaussian Sampling over the Integers Using Polar Codes

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Gaussian sampling over the integers is one of the fundamental building blocks of latticed-based cryptography. We propose a new integer Gaussian sampler based on polar codes, dubbed “polar sampler”. The polar sampler is asymptotically information theoretically optimum. It also features quasi-linear complexity and constant-time implementation. Security analysis is given based on the statistical distance, Kullback-Leibler divergence and Rényi divergence.

This talk is part of the Computer Science Distinguished Seminars series.

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