{"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\/sk\/blog\/news\/vypusk-libtorrent-2-0-s-podderzhkoj-protokola-bittorrent-2","title":{"rendered":"Vydanie libtorrent 2.0 s podporou protokolu BitTorrent 2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Predstaven\u00e9<\/a><\/noindex> v\u00fdznamn\u00e1 verzia kni\u017enice libtorrent 2.0<\/a><\/noindex> (zn\u00e1ma aj ako libtorrent-rasterbar), ktor\u00e1 pon\u00faka implement\u00e1ciu protokolu BitTorrent, efekt\u00edvnu z h\u013eadiska spotreby pam\u00e4te a z\u00e1\u0165a\u017ee CPU. Kni\u017enica sa vyu\u017e\u00edva<\/a><\/noindex> v tak\u00fdch torrentov\u00fdch klientoch, ako s\u00fa Deluge<\/a><\/noindex>, qBittorrent<\/a><\/noindex>, Folx<\/a><\/noindex>, Lince<\/a><\/noindex>, Miro<\/a><\/noindex> a Flush<\/a><\/noindex> (nezamie\u0148a\u0165 s inou kni\u017enicou libtorrent<\/a><\/noindex>, ktor\u00e1 sa pou\u017e\u00edva v rTorrent). K\u00f3d libtorrent je nap\u00edsan\u00fd v jazyku C++ a distribuovan\u00fd<\/a><\/noindex> pod licenciou BSD.<\/p>\n

Verzia je pozoruhodn\u00e1 pridan\u00edm<\/a><\/noindex> podporou protokolu BitTorrent v2<\/a><\/noindex>, v ktorom sa uskuto\u010dnila zmena od pou\u017e\u00edvania algoritmu SHA-1, ktor\u00fd m\u00e1 m\u00e1 probl\u00e9my<\/a><\/noindex> s v\u00fdberom kol\u00edzi\u00ed v prospech SHA2-256. SHA2-256 sa pou\u017e\u00edva ako na kontrolu integrity blokov d\u00e1t, tak aj pre z\u00e1znamy v indexoch (info-dictionary), \u010do naru\u0161uje kompatibilitu s DHT a trackerom. Pre magnetick\u00e9 odkazy na torrentov\u00e9 s\u00fabory s hashmi SHA2-256 bol navrhnut\u00fd nov\u00fd prefix \u201eurn:btmh:\u201c (pre SHA-1 a hybridn\u00e9 torrentov\u00e9 s\u00fabory sa pou\u017e\u00edva \u201eurn:btih:\u201c).<\/p>\n

Ke\u010f\u017ee zmena funkcie hashovania naru\u0161uje kompatibilitu protokolu (pole s hashom 32 bajtov namiesto 20 bajtov), v\u00fdvoj \u0161pecifik\u00e1cie BitTorrent v2 sa od za\u010diatku konal bez oh\u013eadu na sp\u00e4tn\u00fa kompatibilitu a do zlo\u017eenia boli prijat\u00e9 aj in\u00e9 v\u00fdznamn\u00e9 zmeny, ako pou\u017e\u00edvanie Merkleho hashov\u00e9ho stromu v indexoch na zmen\u0161enie ve\u013ekosti torrentov\u00fdch s\u00faborov a kontrolu nahran\u00fdch d\u00e1t na \u00farovni blokov.<\/p>\n

Medzi zmenami v BitTorrent v2 sa tie\u017e vyn\u00edma prechod k viazaniu samostatn\u00fdch hashov\u00fdch stromov k ka\u017ed\u00e9mu s\u00faboru a aplikovanie zarovn\u00e1vania s\u00faborov po \u010dastiach (bez prid\u00e1vania doplnkov\u00e9ho vyp\u013a\u0148ania po ka\u017edom s\u00fabore), \u010do umo\u017e\u0148uje zbavi\u0165 sa duplicitn\u00fdch d\u00e1t pri existencii rovnak\u00fdch s\u00faborov a zjednodu\u0161uje identifik\u00e1ciu r\u00f4znych zdrojov pre s\u00fabory. Zefekt\u00edvnila sa aj \u0161trukt\u00fara k\u00f3dovania adres\u00e1rov v torrente a boli pridan\u00e9 optimaliz\u00e1cie pre spracovanie ve\u013ek\u00e9ho po\u010dtu drobn\u00fdch s\u00faborov. <\/p>\n

Pre zjednodu\u0161enie koexistencie BitTorrent v1 a BitTorrent v2 bola implementovan\u00e1 mo\u017enos\u0165 vytv\u00e1rania hybridn\u00fdch torrentov\u00fdch s\u00faborov, ktor\u00e9 obsahuj\u00fa okrem \u0161trukt\u00far s hashmi SHA-1 aj indexy so SHA2-256.
\nUveden\u00e9 hybridn\u00e9 torrenty sa m\u00f4\u017eu pou\u017e\u00edva\u0165 s klientmi, ktor\u00e9 podporuj\u00fa len protokol BitTorrent v1. O\u010dak\u00e1van\u00e1 podpora protokolu WebTorrent v libtorrent 2.0 je z d\u00f4vodu nevyrie\u0161en\u00fdch probl\u00e9mov so stabilitou odlo\u017een\u00e1<\/a><\/noindex> do \u010fal\u0161ej v\u00fdznamnej verzie, ktor\u00e1 vyjde najsk\u00f4r koncom roka. <\/p>\n

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

Zdroj: 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\udd47Vydanie libtorrent 2.0 s podporou protokolu BitTorrent 2 | ProHoster","description":"Bol predstaven\u00fd v\u00fdznamn\u00fd release kni\u017enice libtorrent.","canonical_url":"https:\/\/prohoster.info\/sk\/blog\/news\/vypusk-libtorrent-2-0-s-podderzhkoj-protokola-bittorrent-2","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sk_SK","og:site_name":"ProHoster | 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