publication

Crip spatialities and temporalities II: a systematic typology of temporal taxes

Living with a disability involves handling many costs that the general population is not aware of, which have recently been denounced in the online #CripTax campaign. Those costs can be split into many categories, the principal ones being financial …

Crip spatialities and temporalities I : discreet crips in a discrete world

This article explores the relationships that disabled people have with the space surrounding them. Extending Jacques Lévy’s work on various non-Euclidean spatialities, we study the discontinuous and discrete nature of space as inhabited by disabled …

Cue-Pin-Select, a Secure Mental Password Manager

People struggle to invent safe passwords for many of their typical online activities, leading to a variety of security problems when they use overly simple passwords or reuse them multiple times with minor modifications. Having different passwords for …

La thanatopolitique du Covid-19

À l’occasion des centaines de milliers de décès soudains du Covid-19, la réalité tangible de la mort s’impose à nouveau à toute la société, après des siècles de mise à distance, jusque dans nos quotidiens confinés1. Alors que nous vivons de mémoire …

Making more extensive and efficient typo-tolerant password checkers

As passwords remain the main online authentication method, focus has shifted from naive entropy to how usability improvements can increase security. Chatterjee et al. recently introduced the first two typo-tolerant password checkers, their second …

Origami voting: a non-cryptographic approach to transparent ballot verification

Over the past four decades, fear of election manipulation and hacking has spurred the security technology community to propose a variety of voting systems to implement verifiable voting. Most of these rely on hard to understand cryptographic …

Towards an Empirical Cost Model for Mental Password Algorithms

Reliance on technology has diminished our use of mental computation. However, mental computation's inherent privacy features are becoming central to new research on creating more secure and usable passwords than one gets with approaches such as …

Usable everlasting encryption using the pornography infrastructure

—Nine years before Snapchat and its ephemeral messages, Aumann, Ding, and Rabin introduced the idea of everlasting security: an encryption that could not be decrypted after a certain date, no matter the adversary’s computing power. Their method is …

Counting authorised paths in constrained control-flow graphs

Our goal in this extended abstract is to investigate a model of computation inspired by control-flow graphs, automata and arithmetic circuits. The objective is to extend the definition of the first to include computing on nodes and edges. We are …

A note on the inflating enclosing ball problem

Our goal in this paper is, given a connected set of balls, to select and inflate one ball to cover the whole set with the minimal radius. More formally, we are given an abstract metric space and a path-connected set of balls with given centres …