{"id":105412,"date":"2022-10-30T15:36:45","date_gmt":"2022-10-30T13:36:45","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-kodovuyu-bazu-freebsd-dobavlena-novaya-realizacziya-vpn-wireguard"},"modified":"2022-10-30T15:36:45","modified_gmt":"2022-10-30T13:36:45","slug":"v-kodovuyu-bazu-freebsd-dobavlena-novaya-realizacziya-vpn-wireguard","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/v-kodovuyu-bazu-freebsd-dobavlena-novaya-realizacziya-vpn-wireguard","title":{"rendered":"Nova implementacija VPN WireGuard dodana je u kodnu bazu FreeBSD.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

U stablo izvornog koda FreeBSD prihva\u0107ene su izmjene s novom implementacijom VPN WireGuard, temeljenom na kodu modula jezgre, koji su zajedni\u010dki pripremili glavne ekipe programera FreeBSD i WireGuard uz sudjelovanje Jasona A. Donenfelda, autora VPN-a WireGuard, i Johna H. Baldwina, poznatog programera GDB-a i FreeBSD-a, koji je na po\u010detku 2000-ih godina implementirao podr\u0161ku za SMP i NUMA u jezgru FreeBSD-a. Nakon prihva\u0107anja drajvera u sastav FreeBSD-a (sys\/dev\/wg), njegov razvoj i odr\u017eavanje od sada \u0107e se voditi u repozitoriju FreeBSD. <\/p>\n

Prije prihva\u0107anja koda uz podr\u0161ku organizacije FreeBSD Foundation, provedena je potpuna recenzija izmjena, tijekom koje je tako\u0111er analizirana interakcija drajvera s ostalim podsustavima jezgre i ocijenjena mogu\u0107nost kori\u0161tenja kriptografskih primitava koje pru\u017ea jezgra. <\/p>\n

Za kori\u0161tenje potrebnih kriptografskih algoritama za drajver pro\u0161iren je API kriptosustava FreeBSD jezgre, u koji je dodata omotnica koja omogu\u0107ava kori\u0161tenje algoritama koji nisu podr\u017eani u FreeBSD-u putem standardnog kripto-API-a, koriste\u0107i implementaciju potrebnih algoritama iz biblioteke libsodium. Od algoritama ugra\u0111enih u drajver ostavljen je samo kod za izra\u010dunavanje he\u0161eva Blake2, budu\u0107i da se pru\u017eena implementacija ovog algoritma u FreeBSD-u oslanja na fiksnu veli\u010dinu he\u0161a. <\/p>\n

Osim toga, tijekom recenzije provodila je optimizacija koda, koja je omogu\u0107ila pobolj\u0161anje u\u010dinkovitosti raspodjele optere\u0107enja na vi\u0161ejezgrene CPU-e (osigurana je ravnomjerna ravnote\u017ea raspodjele zadataka \u0161ifriranja i de\u0161ifriranja paketa na jezgrima CPU-a). Na kraju, tro\u0161kovi obrade paketa su dovedeni bli\u017ee implementaciji drajvera za Linux. U kodu je tako\u0111er osigurana mogu\u0107nost kori\u0161tenja drajvera ossl za ubrzanje operacija \u0161ifriranja. <\/p>\n

Za razliku od prethodnog poku\u0161aja integracije WireGuard-a u FreeBSD, u novoj implementaciji kori\u0161tena je standardna alatka wg, a ne modificirana verzija ifconfig, \u0161to je omogu\u0107ilo uskla\u0111ivanje postavki izme\u0111u Linux-a i FreeBSD-a. Alatka wg, kao i drajver, uklju\u010dena je u izvorne kodove FreeBSD-a, \u0161to je postalo mogu\u0107e zahvaljuju\u0107i promjeni licenciranja koda wg (kod je sada dostupan pod MIT i GPL licencama). Prethodni poku\u0161aj uklju\u010divanja WireGuard-a u FreeBSD dogodio se 2020. godine, ali je zavr\u0161io skandalom, kada je ve\u0107 dodani kod uklonjen zbog niskog kvaliteta, neurednog rada s baferima, kori\u0161tenja zamjenskih re\u0161enja umesto provjera, nepotpune implementacije protokola i povrede GPL licence. <\/p>\n

Podsje\u0107amo, da VPN<\/a> WireGuard je implementiran na temelju modernih metoda enkripcije, pru\u017ea vrlo visoke performanse, jednostavan je za kori\u0161tenje, oslobo\u0111en komplikacija i dobro se pokazao u nizu velikih implementacija koje obra\u0111uju velike koli\u010dine saobra\u0107aja. Projekt se razvija od 2015. godine, pro\u0161ao je reviziju i formalnu verifikaciju kori\u0161\u0107enih metoda enkripcije. U WireGuard-u se koristi koncept rutiranja prema enkripcijskim klju\u010devima, koji podrazumeva vezivanje zatvorenog klju\u010da za svako mre\u017eno su\u010delje i njegovo kori\u0161tenje za povezivanje otvorenih klju\u010deva. <\/p>\n

Razmena otvorenih klju\u010deva za uspostavljanje veze vr\u0161i se analogno kao kod SSH. Za uskla\u0111ivanje klju\u010deva i povezivanje bez pokretanja posebnog demona u korisni\u010dkom prostoru koristi se mehanizam Noise_IK iz Noise Protocol Framework-a, sli\u010dan odr\u017eavanju authorized_keys u SSH. Prijenos podataka vr\u0161i se kroz enkapsulaciju u UDP pakete. Podr\u017eava se prebacivanje IP adrese<\/a> VPN servera (roaming) bez prekida veze uz automatsko rekonfigurisanje klijenta. <\/p>\n

Za \u0161ifriranje se koristi stream cifra ChaCha20 i algoritam za autentifikaciju poruka (MAC) Poly1305, koje su razvili Daniel J. Bernstein, Tanja Lange i Peter Schwabe. ChaCha20 i Poly1305 predstavljaju br\u017ee i sigurnije alternative AES-256-CTR i HMAC, \u010dija softverska implementacija omogu\u0107uje postizanje fiksnog vrijeme izvo\u0111enja bez anga\u017eiranja specijalizirane hardverske podr\u0161ke. Za generiranje zajedni\u010dkog tajnog klju\u010da koristi se protokol Diffie-Hellman na elipti\u010dnim krivuljama s implementacijom Curve25519, tako\u0111er predlo\u017eenom od strane Daniela J. Bernsteina. Za hashiranje se koristi algoritam BLAKE2s (RFC7693).
\n
Izvor: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0412 \u0434\u0435\u0440\u0435\u0432\u043e \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u0445 \u0442\u0435\u043a\u0441\u0442\u043e\u0432 FreeBSD \u043f\u0440\u0438\u043d\u044f\u0442\u044b \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0441 \u043d\u043e\u0432\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 VPN WireGuard, \u043e\u0441\u043d\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u043d\u0430 \u043a\u043e\u0434\u0435 \u043c\u043e\u0434\u0443\u043b\u044f \u044f\u0434\u0440\u0430, \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u043d\u043e \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u043e\u0441\u043d\u043e\u0432\u043d\u044b\u043c\u0438 \u043a\u043e\u043c\u0430\u043d\u0434\u0430\u043c\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 FreeBSD \u0438 WireGuard \u043f\u0440\u0438 \u0443\u0447\u0430\u0441\u0442\u0438\u0438 \u0414\u0436\u0435\u0439\u0441\u043e\u043d\u0430 \u0414\u043e\u043d\u0435\u043d\u0444\u0438\u043b\u0434\u0430 (Jason A. Donenfeld), \u0430\u0432\u0442\u043e\u0440\u0430 VPN WireGuard, \u0438 \u0414\u0436\u043e\u043d\u0430 \u0411\u043e\u043b\u0434\u0443\u0438\u043d\u0430 (John H. Baldwin), \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u043e\u0433\u043e \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430 GDB \u0438 FreeBSD, \u0432 \u043d\u0430\u0447\u0430\u043b\u0435 2000-\u0445 \u0433\u043e\u0434\u043e\u0432 \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u0432\u0448\u0435\u0433\u043e \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 SMP \u0438 NUMA […]<\/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-105412","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47U kodnu bazu FreeBSD-a dodana je nova implementacija VPN WireGuard | ProHoster","description":"U izvorna stabla FreeBSD-a prihva\u0107ene su izmene s novom implementacijom VPN WireGuard-a, zasnovanom na kodu modula jezgra, zajedni\u010dki pripremljenom od strane glavnih timova developera FreeBSD-a i WireGuard-a u saradnji.","canonical_url":"https:\/\/prohoster.info\/hr\/blog\/news\/v-kodovuyu-bazu-freebsd-dobavlena-novaya-realizacziya-vpn-wireguard","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hr_HR","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0412 \u043a\u043e\u0434\u043e\u0432\u0443\u044e 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