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Jul 06, 2025
- read Détecter les contenus pédocriminels en ligne : quelles options techniques ? Quels risques pour la vie privée ? Peut-on détecter automatiquement les contenus pédopornographiques en ligne sans ouvrir la voie à la surveillance de masse ?
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Mar 04, 2025
- read Ordinateur quantique : comprendre le grand défi des « codes correcteurs d’erreurs » et l’avancée récente de Google Google a montré en décembre 2024 qu’une stratégie importante pour développer les ordinateurs quantiques fonctionnait effectivement en pratique. Explications.
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Jan 09, 2025
- read Marie Stuart, quand la vie d’une reine ne tient qu’à la robustesse d’un code secret Découvrez l’histoire tragique de Marie Stuart, reine d’Écosse, qui fut condamnée à mort pour haute trahison par la couronne d’Angleterre.
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Sep 07, 2023
- read Les dangers de la cryptographie non maîtrisée Un article récent « casse » le système de pseudonymat utilisé par un forum où des économistes, confiants dans la sécurité du site, se livraient parfois à des propos indignes.
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Jan 08, 2023
- read Comment choisir un bon mot de passe ? Lettres, chiffres, caractères spéciaux… les recommandations abondent. Sont-elles efficaces ? Décryptage de deux experts.
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Jan 02, 2023
- read La quête d’une cybersécurité résistante à l’arsenal quantique Pour se protéger de futures cyberattaques quantiques, on explore deux voies technologiques. Décryptage.
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Dec 04, 2022
- read Internet sera-t-il quantique ? Les communications quantiques sont sécurisées par nature, mais les mettre en œuvre à l’échelle de la planète reste un objectif très lointain.
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Mar 30, 2022
- read Cryptographie : à quoi servent les nombres aléatoires ? La cryptographie se base entre autres sur l’utilisation de nombres aléatoires. Or, produire des nombres aléatoires n’est pas si simple que cela, et peut mener à des failles de sécurité.
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Mar 16, 2022
- read Cartes bleues et sécurité des échanges : vers une cryptographie post-quantique La cryptographie actuelle est basée sur le fait que les ordinateurs classiques ne peuvent pas résoudre tous les problèmes. Un paradigme que l’ordinateur quantique pourrait bousculer…
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Dec 09, 2021
- read Qu’est-ce qu’un algorithme ? Les algorithmes ont traversé l’histoire, de l’antiquité aux GAFAM. Pour mieux comprendre ces boîtes noires et les questions que posent leurs utilisations.
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May 06, 2021
- read « Retour sur… » : Les technologies quantiques sont-elles prêtes à entrer dans nos vies ? Des capteurs aux ordinateurs en passant par la cryptographie, on fait le point sur la maturité des technologies quantiques.
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Nov 29, 2020
- read Cryptographie : comment ma carte à puce résiste-t-elle aux attaques ? Véritables coffres-forts modernes, les cartes à puces sont conçues pour résister aux attaques. Décodage avec des spécialistes en cryptographie.
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May 13, 2020
- read L’intrication de particules, ou quand Einstein contribue malgré lui à la physique quantique L’intrication quantique sous-tend les développements technologiques comme l’ordinateur quantique et la cryptographie quantique. De quoi s’agit-il ?
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Dec 03, 2019
- read Comment déjouer les points faibles du Bitcoin Malgré sa domination incontestable le bitcoin possède plusieurs graves défauts. Comment les dépasser?
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Apr 16, 2018
- read Peut-on faire confiance à la blockchain ? La blockchain est présentée comme une technologie sûre, garantissant une confiance à ses utilisateurs. Doit-on lui faire, aveuglément, confiance ?
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Jan 23, 2018
- read Un nouveau très grand nombre premier vient d’être découvert Une nouvelle découverte d’un très grand nombre premier est une belle occasion de réviser nos basiques et de rêver à Mersenne.
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Nov 08, 2016
- read La crypto quantique débarque Si Angela veut faire part d’un secret à Barack, comment faire pour que Edward n’intercepte pas le message ? Les protocoles quantiques de distribution de clés secrètes vont leur sauver la mise…
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