{"id":4720,"date":"2025-05-06T13:29:25","date_gmt":"2025-05-06T11:29:25","guid":{"rendered":"https:\/\/pepr-cloud.fr\/fr\/?p=4720"},"modified":"2025-05-06T13:33:39","modified_gmt":"2025-05-06T11:33:39","slug":"pets-2025-innovations-en-cybersecurite-et-apprentissage-federe","status":"publish","type":"post","link":"https:\/\/pepr-cloud.fr\/fr\/pets-2025-innovations-en-cybersecurite-et-apprentissage-federe\/","title":{"rendered":"PETS 2025 : Innovations en Cybers\u00e9curit\u00e9 et Apprentissage F\u00e9d\u00e9r\u00e9"},"content":{"rendered":"<div class=\"wp-block-cover has-custom-content-position is-position-bottom-center animate__animated animate__fadeInDown\" style=\"min-height:250px;aspect-ratio:unset;\"><span aria-hidden=\"true\" class=\"has-background-dim-0 wp-block-cover__gradient-background has-background-dim\"><\/span><img loading=\"lazy\" decoding=\"async\" width=\"976\" height=\"392\" class=\"wp-block-cover__image-background wp-image-4721\" alt=\"\" src=\"https:\/\/pepr-cloud.fr\/files\/2025\/05\/lincoln_memorial_at_early_dusk_cropped.jpg\" data-object-fit=\"cover\" srcset=\"https:\/\/pepr-cloud.fr\/files\/2025\/05\/lincoln_memorial_at_early_dusk_cropped.jpg 976w, https:\/\/pepr-cloud.fr\/files\/2025\/05\/lincoln_memorial_at_early_dusk_cropped-300x120.jpg 300w, https:\/\/pepr-cloud.fr\/files\/2025\/05\/lincoln_memorial_at_early_dusk_cropped-768x308.jpg 768w, https:\/\/pepr-cloud.fr\/files\/2025\/05\/lincoln_memorial_at_early_dusk_cropped-150x60.jpg 150w\" sizes=\"auto, (max-width: 976px) 100vw, 976px\" \/><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<p class=\"has-text-align-center has-large-font-size\"><\/p>\n<\/div><\/div>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h1 class=\"has-text-color wp-block-heading\" style=\"color:#223cb0\"><strong>TRUSTINCloudS \u00e0 PETS 2025 : Innovations en Cybers\u00e9curit\u00e9 et Apprentissage F\u00e9d\u00e9r\u00e9<\/strong><\/h1>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-black-color has-text-color\"><strong><em>Du 14 au 19 juillet 2025, Washington DC accueillera la 25\u00e8me \u00e9dition du Privacy Enhancing Technologies Symposium (PETS). Cet \u00e9v\u00e9nement rassemble des experts mondiaux pour discuter des avanc\u00e9es en technologies de confidentialit\u00e9. Le projet TRUSTINCloudS, qui d\u00e9veloppe des solutions pour les d\u00e9fis de la cybers\u00e9curit\u00e9 dans les environnements Cloud, y pr\u00e9sentera ses travaux innovants.<\/em><\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator aligncenter has-text-color has-background has-cyan-bluish-gray-background-color has-cyan-bluish-gray-color is-style-wide\"\/>\n\n\n\n<p><strong>Un cadre d&rsquo;apprentissage f\u00e9d\u00e9r\u00e9 respectueux de la vie priv\u00e9e et soucieux de l&rsquo;\u00e9quit\u00e9<\/strong><\/p>\n\n\n\n<p>L&rsquo;apprentissage f\u00e9d\u00e9r\u00e9 permet l&rsquo;entra\u00eenement distribu\u00e9 de mod\u00e8les entre plusieurs propri\u00e9taires de donn\u00e9es, orchestr\u00e9 par un serveur central. Cependant, cette approche pr\u00e9sente des lacunes en mati\u00e8re de confidentialit\u00e9 et d&rsquo;\u00e9quit\u00e9. Les mises \u00e0 jour du mod\u00e8le peuvent entra\u00eener des attaques par inf\u00e9rence d&rsquo;appartenance, tandis que les jeux de donn\u00e9es locaux d\u00e9s\u00e9quilibr\u00e9s peuvent introduire des biais de classification, notamment pour les groupes minoritaires.<\/p>\n\n\n\n<p>Le projet TRUSTINCloudS a d\u00e9velopp\u00e9 une nouvelle attaque par inf\u00e9rence exploitant les m\u00e9triques d&rsquo;\u00e9quit\u00e9 lors de l&rsquo;entra\u00eenement du mod\u00e8le global. Pour contrer cette menace, ils proposent un algorithme d&rsquo;agr\u00e9gation de domaines chiffr\u00e9s, sensible \u00e0 l&rsquo;\u00e9quit\u00e9 et diff\u00e9rentiellement priv\u00e9 par conception. Ce dernier utilise la perte de pr\u00e9cision approximative du sch\u00e9ma de chiffrement homomorphe multi-cl\u00e9s CKKS \u00e0 seuil.<\/p>\n\n\n\n<p>Les r\u00e9sultats, pr\u00e9sent\u00e9s \u00e0 PETS 2025, d\u00e9montrent l&rsquo;efficacit\u00e9 de cette approche en termes d\u2019\u00e9quit\u00e9 et de confidentialit\u00e9, valid\u00e9e par des exp\u00e9riences sur trois ensembles de donn\u00e9es r\u00e9els.<\/p>\n\n\n\n<p class=\"has-text-align-left\"><strong><em>Pour en savoir plus, consultez <a href=\"https:\/\/hal.science\/hal-04782394v1\">le papier complet ici<\/a>.<\/em><\/strong><\/p>","protected":false},"excerpt":{"rendered":"<p>TRUSTINCloudS \u00e0 PETS 2025 : Innovations en Cybers\u00e9curit\u00e9 et Apprentissage F\u00e9d\u00e9r\u00e9 Du 14 au 19 juillet 2025, Washington DC accueillera la 25\u00e8me \u00e9dition du Privacy Enhancing Technologies Symposium (PETS). Cet \u00e9v\u00e9nement rassemble des experts mondiaux pour discuter des avanc\u00e9es en technologies de confidentialit\u00e9. Le projet TRUSTINCloudS, qui d\u00e9veloppe des solutions\u2026<\/p>\n<p> <a class=\"continue-reading-link\" href=\"https:\/\/pepr-cloud.fr\/fr\/pets-2025-innovations-en-cybersecurite-et-apprentissage-federe\/\"><span>Continuer la lecture<\/span><i class=\"crycon-right-dir\"><\/i><\/a> <\/p>\n","protected":false},"author":2468,"featured_media":4721,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-4720","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-evenement"],"_links":{"self":[{"href":"https:\/\/pepr-cloud.fr\/fr\/wp-json\/wp\/v2\/posts\/4720","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pepr-cloud.fr\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pepr-cloud.fr\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pepr-cloud.fr\/fr\/wp-json\/wp\/v2\/users\/2468"}],"replies":[{"embeddable":true,"href":"https:\/\/pepr-cloud.fr\/fr\/wp-json\/wp\/v2\/comments?post=4720"}],"version-history":[{"count":5,"href":"https:\/\/pepr-cloud.fr\/fr\/wp-json\/wp\/v2\/posts\/4720\/revisions"}],"predecessor-version":[{"id":4729,"href":"https:\/\/pepr-cloud.fr\/fr\/wp-json\/wp\/v2\/posts\/4720\/revisions\/4729"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pepr-cloud.fr\/fr\/wp-json\/wp\/v2\/media\/4721"}],"wp:attachment":[{"href":"https:\/\/pepr-cloud.fr\/fr\/wp-json\/wp\/v2\/media?parent=4720"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pepr-cloud.fr\/fr\/wp-json\/wp\/v2\/categories?post=4720"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pepr-cloud.fr\/fr\/wp-json\/wp\/v2\/tags?post=4720"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}