{"id":93570,"date":"2020-09-07T19:42:05","date_gmt":"2020-09-07T17:42:05","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-libtorrent-2-0-s-podderzhkoj-protokola-bittorrent-2"},"modified":"2020-09-07T19:42:05","modified_gmt":"2020-09-07T17:42:05","slug":"vypusk-libtorrent-2-0-s-podderzhkoj-protokola-bittorrent-2","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/vypusk-libtorrent-2-0-s-podderzhkoj-protokola-bittorrent-2","title":{"rendered":"Izlazak libtorrent 2.0 s podr\u0161kom za BitTorrent 2 protokol","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Predstavljen<\/a><\/noindex> zna\u010dajan izlazak biblioteke libtorrent 2.0<\/a><\/noindex> (poznata i kao libtorrent-rasterbar), koja nudi implementaciju BitTorrent protokola, u\u010dinkovitu u pogledu potro\u0161nje memorije i optere\u0107enja CPU-a. Biblioteka zastupljena<\/a><\/noindex> u takvim torrent klijentima kao \u0161to su Deluge<\/a><\/noindex>, qBittorrent<\/a><\/noindex>, Folx<\/a><\/noindex>, Lince<\/a><\/noindex>, Miro<\/a><\/noindex> i Flush<\/a><\/noindex> (ne mije\u0161ati s drugom bibliotekom libtorrent<\/a><\/noindex>, koja se koristi u rTorrent). Kod libtorrent napisan je u C++ i distribuira se<\/a><\/noindex> pod BSD licencom.<\/p>\n

Izlazak se isti\u010de dodavanjem<\/a><\/noindex> podr\u0161ke za BitTorrent v2<\/a><\/noindex>, u kojoj je do\u0161lo do promjene od kori\u0161tenja SHA-1 algoritma, koji ima problema<\/a><\/noindex> s odabirom kolizija, u korist SHA2-256. SHA2-256 se koristi za provjeru cjelovitosti blokova podataka, kao i za zapise u indeksima (info-rij\u010dnik), \u0161to naru\u0161ava kompatibilnost s DHT i trackerima. Za magnetske linkove na torrente s hash-evima SHA2-256 predlo\u017een je novi prefiks \u201eurn:btmh:\u201c (za SHA-1 i hibridne torrente koristi se \u201eurn:btih:\u201d).<\/p>\n

Budu\u0107i da promjena funkcije hasiranja naru\u0161ava kompatibilnost protokola (polje s hashom od 32 bajta umjesto 20 bajta), razvoj BitTorrent v2 specifikacije prvotno je proveden bez obzira na backwards kompatibilnost, a u sisitem su uklju\u010dene druge bitne promjene, kao \u0161to je kori\u0161tenje Merkle hash stabla u indeksima kako bi se smanjila veli\u010dina torrent datoteka i provjerila u\u010ditanost podataka na razini blokova.<\/p>\n

Me\u0111u promjenama u BitTorrent v2 tako\u0111er se izdvaja prelazak na vezivanje pojedinih hash stabala za svaku datoteku te primjena poravnanja datoteka po dijelovima (bez dodavanja popunskih podataka nakon svake datoteke), \u0161to omogu\u0107uje uklanjanje duplikacije podataka kada postoje iste datoteke i pojednostavljuje identifikaciju razli\u010ditih izvora za datoteke. Pove\u0107ana je u\u010dinkovitost kodificiranja strukture direktorija u torrent-u i dodane su optimizacije za obradu velikog broja malih datoteka. <\/p>\n

Kako bi se olak\u0161alo su\u017eivot BitTorrent v1 i BitTorrent v2, implementirana je mogu\u0107nost stvaranja hibridnih torrent datoteka, koje uklju\u010duju osim struktura s SHA-1 hash-evima, indekse sa SHA2-256.
\nNavedeni hibridni torrenti mogu se koristiti s klijentima koji podr\u017eavaju samo BitTorrent v1 protokol. O\u010dekivana podr\u0161ka za WebTorrent protokol u libtorrent 2.0 zbog nerije\u0161enih problema sa stabilno\u0161\u0107u odgo\u0111ena<\/a><\/noindex> do sljede\u0107eg zna\u010dajnog izdanja, koje ne\u0107e iza\u0107i prije kraja godine. <\/p>\n

<\/a><\/noindex><\/p>\n

Izvor: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 libtorrent 2.0 (\u0438\u0437\u0432\u0435\u0441\u0442\u043d\u0430 \u0442\u0430\u043a\u0436\u0435 \u043a\u0430\u043a libtorrent-rasterbar), \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u044e\u0449\u0435\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 BitTorrent, \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u0443\u044e \u0441 \u0442\u043e\u0447\u043a\u0438 \u0437\u0440\u0435\u043d\u0438\u044f \u043f\u043e\u0442\u0440\u0435\u0431\u043b\u0435\u043d\u0438\u044f \u043f\u0430\u043c\u044f\u0442\u0438 \u0438 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u043d\u0430 CPU. \u0411\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0430 \u0437\u0430\u0434\u0435\u0439\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0430 \u0432 \u0442\u0430\u043a\u0438\u0445 \u0442\u043e\u0440\u0440\u0435\u043d\u0442-\u043a\u043b\u0438\u0435\u043d\u0442\u0430\u0445, \u043a\u0430\u043a Deluge, qBittorrent, Folx, Lince, Miro \u0438 Flush (\u043d\u0435 \u043f\u0443\u0442\u0430\u0442\u044c \u0441 \u0434\u0440\u0443\u0433\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u043e\u0439 libtorrent, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u0432 rTorrent). \u041a\u043e\u0434 libtorrent \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 C++ \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f […]<\/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-93570","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\udd47Izdanje libtorrent 2.0 s podr\u0161kom za BitTorrent 2 protokol | ProHoster","description":"Predstavljeno je zna\u010dajno izdanje biblioteke libtorrent.","canonical_url":"https:\/\/prohoster.info\/hr\/blog\/news\/vypusk-libtorrent-2-0-s-podderzhkoj-protokola-bittorrent-2","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hr_HR","og:site_name":"ProHoster | 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