activity
20152023
most citedRelational reasoning via probabilistic coupling

42 citations · 115 across the 8 of their papers we have counts for

collaborators

10 papers

cs.DS2023

Recursive lattice reduction -- A framework for finding short lattice vectors

Divesh Aggarwal, Thomas Espitau, Spencer Peters +1

We propose a recursive lattice reduction framework for finding short non-zero vectors or dense sublattices of a lattice. The framework works by recursively searching for dense subl…

cs.DS2020★ 1 cited

The nearest-colattice algorithm

Thomas Espitau, Paul Kirchner

In this work, we exhibit a hierarchy of polynomial time algorithms solving approximate variants of the Closest Vector Problem (CVP). Our first contribution is a heuristic algorithm…

cs.DS2019

Algebraic and Euclidean Lattices: Optimal Lattice Reduction and Beyond

Thomas Espitau, Paul Kirchner, Pierre-Alain Fouque

We introduce a framework generalizing lattice reduction algorithms to module lattices in order to practically and efficiently solve the -Hermite Module-SVP problem over arbitrar…

cs.DS2019

Certified lattice reduction

Thomas Espitau, Antoine Joux

Quadratic form reduction and lattice reduction are fundamental tools in computational number theory and in computer science, especially in cryptography. The celebrated Lenstra-Lens…

cs.LO2018

An Assertion-Based Program Logic for Probabilistic Programs

Gilles Barthe, Thomas Espitau, Marco Gaboardi +3

Research on deductive verification of probabilistic programs has considered expectation-based logics, where pre- and post-conditions are real-valued functions on states, and assert…

cs.PL2017★ 36 cited

Proving Expected Sensitivity of Probabilistic Programs

Gilles Barthe, Thomas Espitau, Benjamin Grégoire +2

Program sensitivity, also known as Lipschitz continuity, describes how small changes in a program's input lead to bounded changes in the output. We propose an average notion of pro…