{"id":119480,"date":"2024-08-14T09:43:01","date_gmt":"2024-08-14T07:43:01","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/nist-standartiziroval-tri-algoritma-postkvantovogo-shifrovaniya"},"modified":"2026-02-15T22:08:21","modified_gmt":"2026-02-15T20:08:21","slug":"nist-standartiziroval-tri-algoritma-postkvantovogo-shifrovaniya","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/nist-standartiziroval-tri-algoritma-postkvantovogo-shifrovaniya","title":{"rendered":"Le NIST a standardis\u00e9 trois algorithmes de cryptographie post-quantique","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>L'Institut national des standards et de la technologie des \u00c9tats-Unis (NIST) a pr\u00e9sent\u00e9 les trois premi\u00e8res normes d\u00e9finissant des algorithmes cryptographiques r\u00e9sistants aux attaques sur un ordinateur quantique. Le premier algorithme standardis\u00e9 (CRYSTALS-Kyber) d\u00e9finit un moyen d'encapsulation des cl\u00e9s et est destin\u00e9 \u00e0 chiffrer l'\u00e9change de donn\u00e9es, tandis que les deux autres (CRYSTALS-Dilithium et Sphincs+) mettent en \u0153uvre des variantes de formation de signatures num\u00e9riques pouvant \u00eatre utilis\u00e9es pour r\u00e9soudre des probl\u00e8mes li\u00e9s \u00e0 l'authentification. Pour \u00e9viter toute confusion, les variantes standardis\u00e9es des algorithmes ont \u00e9t\u00e9 renomm\u00e9es : CRYSTALS-Kyber devient ML-KEM, CRYSTALS-Dilithium devient ML-DSA, et Sphincs+ devient SLH-DSA. Les algorithmes choisis sont en cours de d\u00e9veloppement depuis 2016 et sont les gagnants du concours NIST pr\u00e9c\u00e9demment annonc\u00e9 sur le d\u00e9veloppement d'algorithmes de cryptographie post-quantique.      <\/p>\n<p>Les ordinateurs quantiques, en plein d\u00e9veloppement ces derniers temps, r\u00e9solvent beaucoup plus rapidement les probl\u00e8mes de d\u00e9composition d'un nombre naturel en facteurs premiers (RSA) et de logarithmique discret des points sur une courbe elliptique (ECDSA), qui sous-tendent les algorithmes modernes de chiffrement asym\u00e9trique \u00e0 cl\u00e9 publique, efficacement insolubles sur des processeurs classiques. \u00c0 l'heure actuelle, les capacit\u00e9s des ordinateurs quantiques ne sont pas encore suffisantes pour violer les algorithmes de chiffrement classiques et les signatures num\u00e9riques bas\u00e9es sur des cl\u00e9s publiques, tels que l'ECDSA, mais il est pr\u00e9vu que la situation pourrait changer d\u00e8s cette d\u00e9cennie.    <\/p>\n<p>Normes adopt\u00e9es :  <\/p>\n<ul>\n<li class=\"l\"> FIPS 203 \u2014 consid\u00e9r\u00e9 comme la norme principale pour <a href=\"https:\/\/prohoster.info\/fr\/ssl-sertifikat\/gogetssl-multi-domain\/\"  data-wpil-monitor-id=\"3313\">chiffrement des donn\u00e9es<\/a>, utilisant l'algorithme CRYSTALS-Kyber (ML-KEM \u2014 Module-Lattice Key-Encapsulation Mechanism) pour organiser l'\u00e9change de cl\u00e9s entre les parties effectuant le chiffrement et le d\u00e9chiffrement des donn\u00e9es. L'algorithme CRYSTALS-Kyber utilise des m\u00e9thodes cryptographiques bas\u00e9es sur la r\u00e9solution de probl\u00e8mes de th\u00e9orie des r\u00e9seaux, dont le temps de r\u00e9solution ne diff\u00e8re pas entre les ordinateurs classiques et quantiques. Les avantages de l'algorithme choisi incluent une taille de cl\u00e9 relativement petite et une grande rapidit\u00e9 d'ex\u00e9cution.\n<li class=\"l\"> FIPS 204 \u2014 norme principale pour la formation de signatures num\u00e9riques, bas\u00e9e sur l'algorithme CRYSTALS-Dilithium (ML-DSA \u2014 Module-Lattice Digital Signature Algorithm), qui, tout comme CRYSTALS-Kyber, est fond\u00e9e sur la th\u00e9orie des r\u00e9seaux.\n<li class=\"l\"> FIPS 205 \u2014 norme alternative pour la formation de signatures num\u00e9riques, utilisant l'algorithme Sphincs+ (SLH-DSA \u2014 Stateless Hash-Based Digital Signature Algorithm), qui applique des m\u00e9thodes cryptographiques bas\u00e9es sur des fonctions de hachage. Sphincs+ est inf\u00e9rieur \u00e0 CRYSTALS-Dilithium en taille de signature et en rapidit\u00e9, mais est fond\u00e9 sur des principes math\u00e9matiques compl\u00e8tement diff\u00e9rents, c'est-\u00e0-dire qu'il restera efficace en cas de compromission des algorithmes fond\u00e9s sur la th\u00e9orie des r\u00e9seaux.     <\/ul>\n<p>De plus, d'ici la fin de l'ann\u00e9e, le quatri\u00e8me standard, FIPS 206, destin\u00e9 \u00e0 travailler avec des signatures num\u00e9riques et bas\u00e9 sur l'algorithme FALCON, sera approuv\u00e9. Tout comme les algorithmes CRYSTALS-Kyber et CRYSTALS-Dilithium, il repose sur la r\u00e9solution de probl\u00e8mes de th\u00e9orie des r\u00e9seaux, mais contrairement \u00e0 eux, il est orient\u00e9 vers des applications n\u00e9cessitant une taille minimale de signature. La version standardis\u00e9e de l'algorithme FALCON sera fournie sous le nom de FN-DSA (FFT (transform\u00e9e de Fourier rapide) over NTRU-Lattice Digital Signature Algorithm). D'ici la fin de l'ann\u00e9e, il est \u00e9galement pr\u00e9vu de s\u00e9lectionner des algorithmes pour cr\u00e9er des normes alternatives de chiffrement g\u00e9n\u00e9ral, qui seront bas\u00e9es sur des principes de fonctionnement diff\u00e9rents de ceux utilis\u00e9s dans la norme FIPS 203 bas\u00e9e sur l'algorithme CRYSTALS-Kyber.      <center>  <div class=\"youtube-placeholder\" data-id=\"vWJS62eIVxI\" onclick=\"loadVideo(this)\">\r\n        <img decoding=\"async\" src=\"https:\/\/img.youtube.com\/vi\/vWJS62eIVxI\/hqdefault.jpg\" alt=\"Lire la vid\u00e9o\" loading=\"lazy\" width=\"480\" height=\"360\" style=\"width:100%;height:auto;\">\r\n        <div class=\"play-button\"><\/div>\r\n    <\/div><\/center><br \/>\n<br \/>Source : <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=61700\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041d\u0430\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u0439 \u0438\u043d\u0441\u0442\u0438\u0442\u0443\u0442 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043e\u0432 \u0438 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0439 \u0421\u0428\u0410 (NIST) \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b \u043f\u0435\u0440\u0432\u044b\u0435 \u0442\u0440\u0438 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0430, \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u044f\u044e\u0449\u0438\u0435 \u043a\u0440\u0438\u043f\u0442\u043e\u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c\u044b, \u0441\u0442\u043e\u0439\u043a\u0438\u0435 \u043a \u043f\u043e\u0434\u0431\u043e\u0440\u0443 \u043d\u0430 \u043a\u0432\u0430\u043d\u0442\u043e\u0432\u043e\u043c \u043a\u043e\u043c\u043f\u044c\u044e\u0442\u0435\u0440\u0435. \u041f\u0435\u0440\u0432\u044b\u0439 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c (CRYSTALS-Kyber) \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u044f\u0435\u0442 \u0441\u043f\u043e\u0441\u043e\u0431 \u0438\u043d\u043a\u0430\u043f\u0441\u0443\u043b\u044f\u0446\u0438\u0438 \u043a\u043b\u044e\u0447\u0435\u0439 \u0438 \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d \u0434\u043b\u044f \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043e\u0431\u043c\u0435\u043d\u0430 \u0434\u0430\u043d\u043d\u044b\u043c\u0438, \u0430 \u0434\u0432\u0430 \u0434\u0440\u0443\u0433\u0438\u0445 (CRYSTALS-Dilithium \u0438 Sphincs+) \u0440\u0435\u0430\u043b\u0438\u0437\u0443\u044e\u0442 \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u044b \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0446\u0438\u0444\u0440\u043e\u0432\u044b\u0445 \u043f\u043e\u0434\u043f\u0438\u0441\u0435\u0439, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043c\u043e\u0433\u0443\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0434\u043b\u044f \u0440\u0435\u0448\u0435\u043d\u0438\u044f \u0437\u0430\u0434\u0430\u0447, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0445 \u0441 \u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0435\u0439. \u0414\u043b\u044f \u0442\u043e\u0433\u043e, [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-119480","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" 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