{"id":6469,"date":"2022-09-19T14:28:30","date_gmt":"2022-09-19T14:28:30","guid":{"rendered":"https:\/\/www.capgemini.com\/ca-fr\/?post_type=research-and-insight&#038;p=696236"},"modified":"2025-03-30T07:58:55","modified_gmt":"2025-03-30T07:58:55","slug":"securite-numerique-et-informatique-quantique","status":"publish","type":"research-and-insight","link":"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/","title":{"rendered":"S\u00e9curite num\u00e9rique et informatique quantique : une relation essentiellement paradoxale"},"content":{"rendered":"\n<header class=\"wp-block-cg-blocks-hero-reusable is-style-blue-line header heroReusable  \"><div class=\"header-bgs\"><picture><source srcset=\"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/6\/2022\/09\/GettyImages-1393513175.jpg?w=2880&amp;quality=70 1x, https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/6\/2022\/09\/GettyImages-1393513175.jpg?w=2880&amp;quality=70 2x\" media=\"(min-width: 1500px)\"\/><source srcset=\"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/6\/2022\/09\/GettyImages-1393513175.jpg?w=1440&amp;quality=70 1x, https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/6\/2022\/09\/GettyImages-1393513175.jpg?w=2880&amp;quality=70 2x\" media=\"(min-width: 992px)\"\/><source srcset=\"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/6\/2022\/09\/GettyImages-1393513175.jpg?w=1024&amp;quality=70 1x, https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/6\/2022\/09\/GettyImages-1393513175.jpg?w=1024&amp;quality=70 2x\" media=\"(min-width: 768px)\"\/><source srcset=\"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/6\/2022\/09\/GettyImages-1393513175.jpg?w=768&amp;quality=70 1x, https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/6\/2022\/09\/GettyImages-1393513175.jpg?w=768&amp;quality=70 2x\" media=\"(min-width: 0)\"\/><img decoding=\"async\" src=\"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/6\/2022\/09\/GettyImages-1393513175.jpg\" class=\"header-img header-img-d\" alt=\"\" style=\"object-fit:cover;object-position:52% 61%\" loading=\"eager\"\/><\/picture><\/div><div class=\"heroPictureCardHeaderShape\"><\/div><div class=\"container\"><div class=\"row\"><div class=\"col-md-12\"><div class=\"box\"><div class=\"boxTagWrapper\"><div class=\"tagInfo\"><div><span class=\"box-tag\">Cybers\u00e9curit\u00e9 &amp; Quantique<\/span><\/div><\/div><div class=\"brandInfo\"><div class=\"brandLogo\"><img decoding=\"async\" loading=\"lazy\" src=\"\/wp-content\/themes\/capgemini2020\/assets\/images\/capgemini-invent.svg\" alt=\"capgemini-invent\"\/><\/div><\/div><\/div><div class=\"box-title\"><h1 data-maxlength=\"34\">S\u00e9curite num\u00e9rique et informatique quantique : une relation essentiellement paradoxale<\/h1><\/div><div class=\"inner-row-insight download-btn\"><div class=\"col-md-4 downloadFiles addPadding\"><a class=\"button-download--small\" type=\"download\" href=\"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/6\/2022\/09\/Capgemini-Invent_POV_securite-numerique-informatique-quantique.pdf\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Ouvrir dans une nouvelle fen\u00eatre\"><span>Point de vue<\/span><span class=\"type\">2 MB  pdf<\/span><\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/header>\n\n\n\n<section class=\"wp-block-cg-blocks-intro-para undefined section section--intro is-style-default\" id=\"introParaWrapper\"><div class=\"intro-para\"><div class=\"container\"><div class=\"row\"><div class=\"col-12 col-md-1\"><nav class=\"article-social\"><ul class=\"social-nav\"><li class=\"ip-order-fb\"><a href=\"https:\/\/www.facebook.com\/sharer\/sharer.php?u=https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Ouvrir dans une nouvelle fen\u00eatre\"><i aria-hidden=\"true\" class=\"icon-fb\"><\/i><span class=\"sr-only\">Facebook<\/span><\/a><\/li><li class=\"ip-order-tw\"><a href=\"https:\/\/twitter.com\/intent\/tweet?url=https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/&amp;text=S\u00e9curite num\u00e9rique et informatique quantique : une relation essentiellement paradoxale\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Ouvrir dans une nouvelle fen\u00eatre\"><i aria-hidden=\"true\" class=\"icon-tw\"><\/i><span class=\"sr-only\">Twitter<\/span><\/a><\/li><li class=\"ip-order-li\"><a href=\"https:\/\/www.linkedin.com\/sharing\/share-offsite\/?url=https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/&amp;text=S\u00e9curite num\u00e9rique et informatique quantique : une relation essentiellement paradoxale\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Ouvrir dans une nouvelle fen\u00eatre\"><i aria-hidden=\"true\" class=\"icon-li\"><\/i><span class=\"sr-only\">Linkedin<\/span><\/a><\/li><\/ul><\/nav><\/div><div class=\"col-12 col-md-11 col-lg-10\"><h2 class=\"intro-para-title\">L\u2019ensemble de nos actions en ligne est r\u00e9gi par un ensemble de r\u00e8gles cryptographiques permettant les \u00e9changes s\u00e9curis\u00e9s entre les diff\u00e9rentes parties.<\/h2><p class=\"intro-para-content\">Alors que nous attendons impatiemment l\u2019\u00e9mergence de l\u2019application des technologies quantiques, porteuses de progr\u00e8s technologiques majeurs, Internet se pr\u00e9pare pour le jour o\u00f9 les ordinateurs quantiques seront capables de d\u00e9crypter nos communications s\u00e9curis\u00e9es, appel\u00e9 par certains le Q-Day\u00a0; une nouvelle menace se profile certainement sur nos donn\u00e9es.<\/p><\/div><\/div><\/div><\/div><\/section>\n\n\n\n<section class=\"wp-block-cg-blocks-group undefined section section--article-content\" id=\"quoteWrapper\"><div class=\"article-main-content\"><div class=\"container\"><div class=\"row\"><div class=\"col-12 col-md-11 col-lg-10 offset-md-1 offset-lg-1\"><div class=\"article-text article-quote-text\">\n\n<figure class=\"wp-block-image alignleft size-full is-resized\"><a href=\"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/6\/2022\/09\/Capgemini-Invent_POV_securite-numerique-informatique-quantique.pdf\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/6\/2022\/09\/couverture-pov-cyber-quantique.png\" alt=\"\" class=\"wp-image-696265\" width=\"197\" height=\"278\"\/><\/a><\/figure>\n\n\n<p>Et alors que le hardware quantique n\u2019est pas encore suffisamment mature pour d\u00e9crypter les algorithmes utilis\u00e9s, nos donn\u00e9es sont d\u00e9j\u00e0 \u00e0 risque des hackers qui accumulent des donn\u00e9es crypt\u00e9es afin de les d\u00e9crypter dans le futur. Comment alors se pr\u00e9parer \u00e0 cette \u00e9ventualit\u00e9 et comment cette menace a, d\u00e8s aujourd\u2019hui, chang\u00e9 la fa\u00e7on dont nous r\u00e9fl\u00e9chissons cette relation entre cybers\u00e9curit\u00e9 et informatique quantique ?<br><br>L\u2019informatique quantique est une \u00e9volution technologique scientifique. A l\u2019inverse, la s\u00e9curit\u00e9 num\u00e9rique est un concept : par essence, elle peut \u00eatre interpr\u00e9t\u00e9e diff\u00e9remment en fonction de ses usages, parfois concurrents. Explorer la relation entre l\u2019informatique quantique et la s\u00e9curit\u00e9 num\u00e9rique peut donc g\u00e9n\u00e9rer des discours paradoxaux :<br>Le paradoxe du progr\u00e8s quantique : menace ou opportunit\u00e9 pour la s\u00e9curit\u00e9 ?<br>Le paradoxe de la recherche quantique : attendre trop longtemps ou agir trop rapidement ?<br>Le paradoxe g\u00e9opolitique : un enjeu universel ou une question de souverainet\u00e9 ?<br><\/p>\n\n\n<p>Pour en savoir plus sur la cybers\u00e9curit\u00e9 et le quantique, t\u00e9l\u00e9chargez le point de vue r\u00e9dig\u00e9 par les experts de Capgemini Invent.<\/p>\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/6\/2022\/09\/Capgemini-Invent_POV_securite-numerique-informatique-quantique.pdf\">T\u00e9l\u00e9charger le point de vue<\/a><\/div>\n\n<\/div>\n\n<\/div><\/div><\/div><\/div><\/div><\/section>\n\n\n\n<section class=\"wp-block-cg-blocks-wrapper-people-slider section section--expert-slider wrapper-people-slider undefined\"><div class=\"container\"><div class=\"content-title\"><h3 data-maxlength=\"34\">Auteurs<\/h3><\/div><\/div><div class=\"slider slider-boxed\"><div class=\"container\"><div class=\"slider-window\"><div class=\"slider-list\">\n\t\t<div class=\"slide\">\n\t\t\t<div class=\"box\">\n\t\t\t\t<div class=\"row\">\n\t\t\t\t\t<div class=\"col-md-6 col-lg-4 box-img-wrapper\">\n\t\t\t\t\t\t<img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/themes\/capgemini2025\/assets\/images\/mockup.png\" alt=\"\"\/>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"col-md-6 col-lg-8 box-inner\">\n\t\t\t\t\t\t<div class=\"row title-social-media-header\">\n\t\t\t\t\t\t\t<div class=\"col-md-12 col-lg-6 mbl-social-icon\">\n\t\t\t\t\t\t\t\t<ul class=\"social-nav\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"col-md-12 col-lg-6 box-container\">\n\t\t\t\t\t\t\t\t<div class=\"box-title\">\n\t\t\t\t\t\t\t\t\t<h3 class=\"people-profile-title\"><\/h3>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"col-md-12 col-lg-6 social-box-container dkt-social-icon\">\n\t\t\t\t\t\t\t\t<ul class=\"social-nav\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\n\n\n<\/div><\/div><\/div><div class=\"slider-nav\"><button class=\"slider-prev inactive\" aria-label=\"Curseur pr\u00e9c\u00e9dent\" tabindex=\"-1\"><\/button><ul class=\"slider-paginator\"><\/ul><button class=\"slider-next\" aria-label=\"Curseur suivant\"><\/button><\/div><\/div><\/section>\n","protected":false},"excerpt":{"rendered":"<p>L\u2019ensemble de nos actions en ligne est r\u00e9gi par un ensemble de r\u00e8gles cryptographiques permettant les \u00e9changes s\u00e9curis\u00e9s entre les diff\u00e9rentes parties. Alors que nous attendons impatiemment l\u2019\u00e9mergence de l\u2019application des technologies quantiques, porteuses de progr\u00e8s technologiques majeurs, Internet se pr\u00e9pare pour le jour o\u00f9 les ordinateurs quantiques seront capables de d\u00e9crypter nos communications s\u00e9curis\u00e9es, appel\u00e9 par certains le Q-Day ; une nouvelle menace se profile certainement sur nos donn\u00e9es.<\/p>\n","protected":false},"author":201,"featured_media":6470,"template":"","meta":{"cg_dt_proposed_to":[],"cg_seo_hreflang_relations":"[]","cg_seo_canonical_relation":"","cg_seo_hreflang_x_default_relation":"{\"uuid\":\"0655029a-27cb-42d6-9dfb-2171b9207346\",\"blogId\":\"\",\"domain\":\"\",\"sitePath\":\"\",\"postLink\":\"\",\"postId\":null,\"isSaved\":false,\"isCrossLink\":false,\"hasCrossLink\":false}","cg_dt_approved_content":true,"cg_dt_mandatory_content":false,"cg_dt_notes":"","cg_dg_source_changed":false,"cg_dt_link_disabled":false,"footnotes":"","related_resource_url":"","related_resource_id":0,"related_resource_size":"","related_resource_type":"","cg_author":0,"_yoast_wpseo_primary_theme":0,"primary_term":"","featured_focal_points":""},"tags":[185],"research-and-insight-type":[159],"theme":[186,164],"brand":[160],"service":[187],"industry":[],"partners":[],"content-group":[],"class_list":["post-6469","research-and-insight","type-research-and-insight","status-publish","has-post-thumbnail","hentry","tag-cybersecurite","research-and-insight-type-points-de-vue","theme-cybersecurite","theme-innovation","brand-capgemini-invent","service-cybersecurite"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.8 (Yoast SEO v22.8) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>S\u00e9curite num\u00e9rique et informatique quantique : une relation essentiellement paradoxale - Capgemini Canada French<\/title>\n<meta name=\"description\" content=\"L\u2019ensemble de nos actions en ligne est r\u00e9gi par un ensemble de r\u00e8gles cryptographiques permettant les \u00e9changes s\u00e9curis\u00e9s entre les diff\u00e9rentes parties. Alors que nous attendons impatiemment l\u2019\u00e9mergence de l\u2019application des technologies quantiques, porteuses de progr\u00e8s technologiques majeurs, Internet se pr\u00e9pare pour le jour o\u00f9 les ordinateurs quantiques seront capables de d\u00e9crypter nos communications s\u00e9curis\u00e9es, appel\u00e9 par certains le Q-Day ; une nouvelle menace se profile certainement sur nos donn\u00e9es.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.capgemini.com\/fr-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"S\u00e9curite num\u00e9rique et informatique quantique : une relation essentiellement paradoxale\" \/>\n<meta property=\"og:description\" content=\"L\u2019ensemble de nos actions en ligne est r\u00e9gi par un ensemble de r\u00e8gles cryptographiques permettant les \u00e9changes s\u00e9curis\u00e9s entre les diff\u00e9rentes parties. Alors que nous attendons impatiemment l\u2019\u00e9mergence de l\u2019application des technologies quantiques, porteuses de progr\u00e8s technologiques majeurs, Internet se pr\u00e9pare pour le jour o\u00f9 les ordinateurs quantiques seront capables de d\u00e9crypter nos communications s\u00e9curis\u00e9es, appel\u00e9 par certains le Q-Day ; une nouvelle menace se profile certainement sur nos donn\u00e9es.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/\" \/>\n<meta property=\"og:site_name\" content=\"Capgemini Canada French\" \/>\n<meta property=\"article:modified_time\" content=\"2025-03-30T07:58:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/21\/2025\/10\/New-Web-preview-global.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"627\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/\",\"url\":\"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/\",\"name\":\"S\u00e9curite num\u00e9rique et informatique quantique : une relation essentiellement paradoxale - Capgemini Canada French\",\"isPartOf\":{\"@id\":\"https:\/\/www.capgemini.com\/ca-fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/21\/2022\/09\/GettyImages-1393513175.jpg\",\"datePublished\":\"2022-09-19T14:28:30+00:00\",\"dateModified\":\"2025-03-30T07:58:55+00:00\",\"description\":\"L\u2019ensemble de nos actions en ligne est r\u00e9gi par un ensemble de r\u00e8gles cryptographiques permettant les \u00e9changes s\u00e9curis\u00e9s entre les diff\u00e9rentes parties. Alors que nous attendons impatiemment l\u2019\u00e9mergence de l\u2019application des technologies quantiques, porteuses de progr\u00e8s technologiques majeurs, Internet se pr\u00e9pare pour le jour o\u00f9 les ordinateurs quantiques seront capables de d\u00e9crypter nos communications s\u00e9curis\u00e9es, appel\u00e9 par certains le Q-Day ; une nouvelle menace se profile certainement sur nos donn\u00e9es.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/#primaryimage\",\"url\":\"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/21\/2022\/09\/GettyImages-1393513175.jpg\",\"contentUrl\":\"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/21\/2022\/09\/GettyImages-1393513175.jpg\",\"width\":4900,\"height\":2756,\"caption\":\"quantum computer\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.capgemini.com\/ca-fr\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Research &amp; insights\",\"item\":\"https:\/\/www.capgemini.com\/ca-fr\/research-and-insight\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"S\u00e9curite num\u00e9rique et informatique quantique : une relation essentiellement paradoxale\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.capgemini.com\/ca-fr\/#website\",\"url\":\"https:\/\/www.capgemini.com\/ca-fr\/\",\"name\":\"Capgemini Canada French\",\"description\":\"Capgemini\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.capgemini.com\/ca-fr\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"fr-FR\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"S\u00e9curite num\u00e9rique et informatique quantique : une relation essentiellement paradoxale - Capgemini Canada French","description":"L\u2019ensemble de nos actions en ligne est r\u00e9gi par un ensemble de r\u00e8gles cryptographiques permettant les \u00e9changes s\u00e9curis\u00e9s entre les diff\u00e9rentes parties. Alors que nous attendons impatiemment l\u2019\u00e9mergence de l\u2019application des technologies quantiques, porteuses de progr\u00e8s technologiques majeurs, Internet se pr\u00e9pare pour le jour o\u00f9 les ordinateurs quantiques seront capables de d\u00e9crypter nos communications s\u00e9curis\u00e9es, appel\u00e9 par certains le Q-Day ; une nouvelle menace se profile certainement sur nos donn\u00e9es.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.capgemini.com\/fr-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/","og_locale":"fr_FR","og_type":"article","og_title":"S\u00e9curite num\u00e9rique et informatique quantique : une relation essentiellement paradoxale","og_description":"L\u2019ensemble de nos actions en ligne est r\u00e9gi par un ensemble de r\u00e8gles cryptographiques permettant les \u00e9changes s\u00e9curis\u00e9s entre les diff\u00e9rentes parties. Alors que nous attendons impatiemment l\u2019\u00e9mergence de l\u2019application des technologies quantiques, porteuses de progr\u00e8s technologiques majeurs, Internet se pr\u00e9pare pour le jour o\u00f9 les ordinateurs quantiques seront capables de d\u00e9crypter nos communications s\u00e9curis\u00e9es, appel\u00e9 par certains le Q-Day ; une nouvelle menace se profile certainement sur nos donn\u00e9es.","og_url":"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/","og_site_name":"Capgemini Canada French","article_modified_time":"2025-03-30T07:58:55+00:00","og_image":[{"width":1200,"height":627,"url":"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/21\/2025\/10\/New-Web-preview-global.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/","url":"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/","name":"S\u00e9curite num\u00e9rique et informatique quantique : une relation essentiellement paradoxale - Capgemini Canada French","isPartOf":{"@id":"https:\/\/www.capgemini.com\/ca-fr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/#primaryimage"},"image":{"@id":"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/#primaryimage"},"thumbnailUrl":"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/21\/2022\/09\/GettyImages-1393513175.jpg","datePublished":"2022-09-19T14:28:30+00:00","dateModified":"2025-03-30T07:58:55+00:00","description":"L\u2019ensemble de nos actions en ligne est r\u00e9gi par un ensemble de r\u00e8gles cryptographiques permettant les \u00e9changes s\u00e9curis\u00e9s entre les diff\u00e9rentes parties. Alors que nous attendons impatiemment l\u2019\u00e9mergence de l\u2019application des technologies quantiques, porteuses de progr\u00e8s technologiques majeurs, Internet se pr\u00e9pare pour le jour o\u00f9 les ordinateurs quantiques seront capables de d\u00e9crypter nos communications s\u00e9curis\u00e9es, appel\u00e9 par certains le Q-Day ; une nouvelle menace se profile certainement sur nos donn\u00e9es.","breadcrumb":{"@id":"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/#primaryimage","url":"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/21\/2022\/09\/GettyImages-1393513175.jpg","contentUrl":"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/21\/2022\/09\/GettyImages-1393513175.jpg","width":4900,"height":2756,"caption":"quantum computer"},{"@type":"BreadcrumbList","@id":"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.capgemini.com\/ca-fr\/"},{"@type":"ListItem","position":2,"name":"Research &amp; insights","item":"https:\/\/www.capgemini.com\/ca-fr\/research-and-insight\/"},{"@type":"ListItem","position":3,"name":"S\u00e9curite num\u00e9rique et informatique quantique : une relation essentiellement paradoxale"}]},{"@type":"WebSite","@id":"https:\/\/www.capgemini.com\/ca-fr\/#website","url":"https:\/\/www.capgemini.com\/ca-fr\/","name":"Capgemini Canada French","description":"Capgemini","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.capgemini.com\/ca-fr\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"fr-FR"}]}},"theme_term_info":[{"id":186,"name":"Cybers\u00e9curit\u00e9"},{"id":164,"name":"Innovation"}],"industry_term_info":[],"services_term_info":[{"id":187,"name":"Cybersecurit\u00e9"}],"partners_term_info":[],"brand_term_info":[{"id":160,"name":"Capgemini Invent","slug":"capgemini-invent"}],"brand_term":[{"id":160,"slug":"capgemini-invent"}],"parsely":{"version":"1.1.0","canonical_url":"https:\/\/capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/","smart_links":{"inbound":0,"outbound":0},"traffic_boost_suggestions_count":0,"meta":{"@context":"https:\/\/schema.org","@type":"NewsArticle","headline":"S\u00e9curite num\u00e9rique et informatique quantique : une relation essentiellement paradoxale","url":"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/","mainEntityOfPage":{"@type":"WebPage","@id":"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/"},"thumbnailUrl":"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/21\/2022\/09\/GettyImages-1393513175.jpg?w=150&h=150&crop=1","image":{"@type":"ImageObject","url":"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/21\/2022\/09\/GettyImages-1393513175.jpg"},"articleSection":"Uncategorized","author":[],"creator":[],"publisher":{"@type":"Organization","name":"Capgemini Canada French","logo":""},"keywords":["cybers\u00e9curit\u00e9"],"dateCreated":"2022-09-19T14:28:30Z","datePublished":"2022-09-19T14:28:30Z","dateModified":"2025-03-30T07:58:55Z"},"rendered":"<meta name=\"parsely-title\" content=\"S\u00e9curite num\u00e9rique et informatique quantique : une relation essentiellement paradoxale\" \/>\n<meta name=\"parsely-link\" content=\"https:\/\/www.capgemini.com\/ca-fr\/perspectives\/publications\/securite-numerique-et-informatique-quantique\/\" \/>\n<meta name=\"parsely-type\" content=\"post\" \/>\n<meta name=\"parsely-image-url\" content=\"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/21\/2022\/09\/GettyImages-1393513175.jpg?w=150&amp;h=150&amp;crop=1\" \/>\n<meta name=\"parsely-pub-date\" content=\"2022-09-19T14:28:30Z\" \/>\n<meta name=\"parsely-section\" content=\"Uncategorized\" \/>\n<meta name=\"parsely-tags\" content=\"cybers\u00e9curit\u00e9\" \/>","tracker_url":"https:\/\/cdn.parsely.com\/keys\/capgemini.com\/p.js"},"archive_status":false,"featured_image_src":"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/21\/2022\/09\/GettyImages-1393513175.jpg","featured_image_alt":"","jetpack_sharing_enabled":true,"distributor_meta":false,"distributor_terms":false,"distributor_media":false,"distributor_original_site_name":"Capgemini Canada French","distributor_original_site_url":"https:\/\/www.capgemini.com\/ca-fr","push-errors":false,"tag_names":["Cybers\u00e9curit\u00e9"],"featured_image_url":"https:\/\/www.capgemini.com\/ca-fr\/wp-content\/uploads\/sites\/21\/2022\/09\/GettyImages-1393513175.jpg","_links":{"self":[{"href":"https:\/\/www.capgemini.com\/ca-fr\/wp-json\/wp\/v2\/research-and-insight\/6469","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.capgemini.com\/ca-fr\/wp-json\/wp\/v2\/research-and-insight"}],"about":[{"href":"https:\/\/www.capgemini.com\/ca-fr\/wp-json\/wp\/v2\/types\/research-and-insight"}],"author":[{"embeddable":true,"href":"https:\/\/www.capgemini.com\/ca-fr\/wp-json\/wp\/v2\/users\/201"}],"version-history":[{"count":3,"href":"https:\/\/www.capgemini.com\/ca-fr\/wp-json\/wp\/v2\/research-and-insight\/6469\/revisions"}],"predecessor-version":[{"id":707875,"href":"https:\/\/www.capgemini.com\/ca-fr\/wp-json\/wp\/v2\/research-and-insight\/6469\/revisions\/707875"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.capgemini.com\/ca-fr\/wp-json\/wp\/v2\/media\/6470"}],"wp:attachment":[{"href":"https:\/\/www.capgemini.com\/ca-fr\/wp-json\/wp\/v2\/media?parent=6469"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.capgemini.com\/ca-fr\/wp-json\/wp\/v2\/tags?post=6469"},{"taxonomy":"research-and-insight-type","embeddable":true,"href":"https:\/\/www.capgemini.com\/ca-fr\/wp-json\/wp\/v2\/research-and-insight-type?post=6469"},{"taxonomy":"theme","embeddable":true,"href":"https:\/\/www.capgemini.com\/ca-fr\/wp-json\/wp\/v2\/theme?post=6469"},{"taxonomy":"brand","embeddable":true,"href":"https:\/\/www.capgemini.com\/ca-fr\/wp-json\/wp\/v2\/brand?post=6469"},{"taxonomy":"service","embeddable":true,"href":"https:\/\/www.capgemini.com\/ca-fr\/wp-json\/wp\/v2\/service?post=6469"},{"taxonomy":"industry","embeddable":true,"href":"https:\/\/www.capgemini.com\/ca-fr\/wp-json\/wp\/v2\/industry?post=6469"},{"taxonomy":"partners","embeddable":true,"href":"https:\/\/www.capgemini.com\/ca-fr\/wp-json\/wp\/v2\/partners?post=6469"},{"taxonomy":"content-group","embeddable":true,"href":"https:\/\/www.capgemini.com\/ca-fr\/wp-json\/wp\/v2\/content-group?post=6469"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}