{"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\/da\/blog\/news\/kompaniya-expressvpn-otkryla-narabotki-svyazannye-s-vpn-protokolom-lightway","title":{"rendered":"Virksomheden ExpressVPN har offentliggjort sine arbejder relateret til VPN-protokollen Lightway","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

ExpressVPN har annonceret \u00e5bningen af kildekoden til implementeringen af Lightway-protokollen, som er designet til at opn\u00e5 minimal forbindelsestid samtidig med at et h\u00f8jt sikkerheds- og p\u00e5lidelighedsniveau opretholdes. Koden er skrevet i C og distribueres under GPLv2-licensen. Implementeringen er meget kompakt og fylder kun to tusinde linjer kode. Der er erkl\u00e6ret st\u00f8tte til platforme som Linux, Windows, macOS, iOS, Android, routere (Asus, Netgear, Linksys) og browsere. Bygningen kr\u00e6ver brug af bygge-systemer som Earthly og Ceedling. Implementeringen tilbydes som et bibliotek, som kan bruges til at integrere funktioner til klient- og serverapplikationer. VPN<\/a> til deres applikationer. <\/p>\n

Koden anvender velpr\u00f8vede kryptografiske funktioner fra biblioteket wolfSSL, som allerede benyttes i l\u00f8sninger, der har opn\u00e5et FIPS 140-2-certificering. I standardtilstand anvender protokollen UDP til dataoverf\u00f8rsel og DTLS til at skabe en krypteret kommunikationskanal. Som et supplement til at sikre funktionalitet i p\u00e5lidelige eller begr\u00e6nsede UDP-netv\u00e6rk, serveren<\/a> tilbydes en mere p\u00e5lidelig, men langsommere, streamingtilstand, der muligg\u00f8r dataoverf\u00f8rsel over TCP og TLSv1.3. <\/p>\n

Tests udf\u00f8rt af ExpressVPN har vist, at sammenlignet med de gamle protokoller (ExpressVPN underst\u00f8tter L2TP\/IPSec, OpenVPN, IKEv2, PPTP, WireGuard og SSTP, men angiver ikke, hvad der konkret er blevet sammenlignet med), har overgangen til Lightway reduceret forbindelse-tiden med gennemsnitligt 2,5 gange (i mere end halvdelen af tilf\u00e6ldene oprettes forbindelsen p\u00e5 under et sekund). Den nye protokol har ogs\u00e5 givet mulighed for en 40% reduktion i antallet af forbindelsesbrud i up\u00e5lidelige mobile netv\u00e6rk med problemer med forbindelseskvaliteten. <\/p>\n

Udviklingen af den reference-implementering af protokollen vil finde sted p\u00e5 GitHub og give mulighed for deltagelse fra medlemmer af samfundet (for at indsende \u00e6ndringer kr\u00e6ves det at underskrive en CLA-aftale om overdragelse af ejendomrettigheder til koden). Ogs\u00e5 andre VPN-udbydere inviteres til at samarbejde, da de uden begr\u00e6nsninger kan bruge den foresl\u00e5ede protokol. <\/p>\n

Sikkerheden ved implementeringen er blevet bekr\u00e6ftet gennem en uafh\u00e6ngig audit udf\u00f8rt af Cure53, som tidligere har udf\u00f8rt audits af NTPsec, SecureDrop, Cryptocat, F-Droid og Dovecot. Auditen omfattede en kontrol af kildekoden samt tests for at identificere mulige s\u00e5rbarheder (sp\u00f8rgsm\u00e5l relateret til kryptografi blev ikke behandlet). Generelt blev kvaliteten af koden vurderet som h\u00f8j, men auditten afsl\u00f8rede dog tre s\u00e5rbarheder, der kan f\u00f8re til serviceafbrydelser, samt \u00e9n s\u00e5rbarhed, der muligg\u00f8r anvendelse af protokollen som en trafikforst\u00e6rker ved DDoS-angreb. De n\u00e6vnte problemer er allerede blevet l\u00f8st, og de fremsatte bem\u00e6rkninger til forbedring af koden er blevet taget i betragtning. Auditten gjorde ogs\u00e5 opm\u00e6rksom p\u00e5 kendte s\u00e5rbarheder og problemer i de anvendte tredjeparts komponenter som libdnet, WolfSSL, Unity, Libuv og lua-crypt. De fleste problemer er ubetydelige, undtagen MITM i WolfSSL (CVE-2021-3336).
\n
Kilde: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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