{"id":100995,"date":"2021-08-12T10:22:39","date_gmt":"2021-08-12T08:22:39","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kompaniya-expressvpn-otkryla-narabotki-svyazannye-s-vpn-protokolom-lightway"},"modified":"2021-08-12T10:22:39","modified_gmt":"2021-08-12T08:22:39","slug":"kompaniya-expressvpn-otkryla-narabotki-svyazannye-s-vpn-protokolom-lightway","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/kompaniya-expressvpn-otkryla-narabotki-svyazannye-s-vpn-protokolom-lightway","title":{"rendered":"La soci\u00e9t\u00e9 ExpressVPN a publi\u00e9 des travaux li\u00e9s au protocole VPN Lightway.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>La soci\u00e9t\u00e9 ExpressVPN a annonc\u00e9 l'ouverture du code source de l'impl\u00e9mentation du protocole Lightway, con\u00e7u pour atteindre un temps de connexion minimal tout en pr\u00e9servant un haut niveau de s\u00e9curit\u00e9 et de fiabilit\u00e9. Le code est \u00e9crit en C et distribu\u00e9 sous la licence GPLv2. L'impl\u00e9mentation est tr\u00e8s compacte et tient en deux mille lignes de code. La prise en charge des plateformes Linux, Windows, macOS, iOS, Android, des routeurs (Asus, Netgear, Linksys) et des navigateurs est d\u00e9clar\u00e9e. Pour la compilation, l'utilisation des syst\u00e8mes de construction Earthly et Ceedling est requise. L'impl\u00e9mentation est pr\u00e9sent\u00e9e sous la forme d'une biblioth\u00e8que qui peut \u00eatre utilis\u00e9e pour int\u00e9grer les fonctionnalit\u00e9s client et serveur. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/fr\/vpn\/\"   title=\"VPN\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"176\">VPN<\/a> dans leurs applications.      <\/p>\n<p> Le code utilise des fonctions cryptographiques pr\u00e9-approuv\u00e9es fournies par la biblioth\u00e8que wolfSSL, d\u00e9j\u00e0 utilis\u00e9e dans des solutions ayant obtenu la certification FIPS 140-2. En mode standard, le protocole utilise UDP pour la transmission des donn\u00e9es et DTLS pour la cr\u00e9ation d'un canal de communication chiffr\u00e9. En option, pour garantir le fonctionnement dans des r\u00e9seaux UDP peu fiables ou contraignants, <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/fr\/server\/dts-prohoster\/\"   title=\"serveur\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3016\">serveur<\/a> un mode de flux plus fiable mais moins rapide est fourni, permettant de transmettre des donn\u00e9es sur TCP et TLSv1.3.    <\/p>\n<p>Les tests r\u00e9alis\u00e9s par ExpressVPN ont montr\u00e9 qu'en comparaison avec d'anciens protocoles (ExpressVPN prend en charge L2TP\/IPSec, OpenVPN, IKEv2, PPTP, WireGuard et SSTP, mais ne pr\u00e9cise pas avec quoi la comparaison a \u00e9t\u00e9 effectu\u00e9e), le passage \u00e0 Lightway a permis de r\u00e9duire en moyenne le temps de connexion de 2,5 fois (dans plus de la moiti\u00e9 des cas, le canal de communication est \u00e9tabli en moins d'une seconde). Le nouveau protocole a \u00e9galement permis de diminuer le nombre de d\u00e9connexions dans des r\u00e9seaux mobiles peu fiables, rencontrant des probl\u00e8mes de qualit\u00e9 de communication, de 40%.    <\/p>\n<p>Le d\u00e9veloppement de l'impl\u00e9mentation de r\u00e9f\u00e9rence du protocole se fera sur GitHub avec la possibilit\u00e9 pour les membres de la communaut\u00e9 de participer au d\u00e9veloppement (pour soumettre des modifications, il est n\u00e9cessaire de signer un accord CLA concernant le transfert des droits de propri\u00e9t\u00e9 sur le code). D'autres fournisseurs de VPN sont \u00e9galement invit\u00e9s \u00e0 collaborer, pouvant utiliser sans restrictions le protocole propos\u00e9.        <\/p>\n<p>La s\u00e9curit\u00e9 de la mise en \u0153uvre a \u00e9t\u00e9 confirm\u00e9e par les r\u00e9sultats d'un audit ind\u00e9pendant r\u00e9alis\u00e9 par Cure53, qui a \u00e9galement audit NTPsec, SecureDrop, Cryptocat, F-Droid et Dovecot. L'audit a concern\u00e9 la v\u00e9rification des codes sources et a inclus des tests pour identifier d'\u00e9ventuelles vuln\u00e9rabilit\u00e9s (les questions li\u00e9es \u00e0 la cryptographie n'ont pas \u00e9t\u00e9 examin\u00e9es). Dans l'ensemble, la qualit\u00e9 du code a \u00e9t\u00e9 \u00e9valu\u00e9e comme \u00e9lev\u00e9e, mais l'inspection a tout de m\u00eame r\u00e9v\u00e9l\u00e9 trois vuln\u00e9rabilit\u00e9s pouvant entra\u00eener des d\u00e9faillances et une vuln\u00e9rabilit\u00e9 permettant d'exploiter le protocole comme amplificateur de trafic lors d'attaques DDoS. Ces probl\u00e8mes ont d\u00e9j\u00e0 \u00e9t\u00e9 corrig\u00e9s et les suggestions d'am\u00e9lioration du code ont \u00e9t\u00e9 prises en compte. L'audit a \u00e9galement port\u00e9 sur les vuln\u00e9rabilit\u00e9s et probl\u00e8mes connus dans les composants tiers impliqu\u00e9s, tels que libdnet, WolfSSL, Unity, Libuv et lua-crypt. Globalement, les probl\u00e8mes sont mineurs, sauf pour la vuln\u00e9rabilit\u00e9 MITM dans WolfSSL (CVE-2021-3336).<br \/>\n<br \/>Source : <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55626\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f ExpressVPN \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e\u0431 \u043e\u0442\u043a\u0440\u044b\u0442\u0438\u0438 \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u0445 \u0442\u0435\u043a\u0441\u0442\u043e\u0432 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 Lightway, \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043d\u043d\u043e\u0433\u043e \u0434\u043b\u044f \u0434\u043e\u0441\u0442\u0438\u0436\u0435\u043d\u0438\u044f \u043c\u0438\u043d\u0438\u043c\u0430\u043b\u044c\u043d\u043e\u0433\u043e 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\u0434\u0432\u0435 \u0442\u044b\u0441\u044f\u0447\u0438 \u0441\u0442\u0440\u043e\u043a \u043a\u043e\u0434\u0430. \u0417\u0430\u044f\u0432\u043b\u0435\u043d\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c Linux, Windows, macOS, iOS, Android, \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440\u043e\u0432 (Asus, Netgear, [&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-100995","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\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f ExpressVPN 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