{"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\/ro\/blog\/news\/vypusk-libtorrent-2-0-s-podderzhkoj-protokola-bittorrent-2","title":{"rendered":"Lansarea libtorrent 2.0 cu suport pentru protocolul BitTorrent 2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Prezentat<\/a><\/noindex> o lansare semnificativ\u0103 a bibliotecii libtorrent 2.0<\/a><\/noindex> (cunoscut\u0103 \u0219i sub denumirea de libtorrent-rasterbar), care ofer\u0103 o implementare a protocolului BitTorrent, eficient\u0103 din punct de vedere al consumului de memorie \u0219i al \u00eenc\u0103rc\u0103rii CPU. Biblioteca este utilizat\u0103<\/a><\/noindex> \u00een astfel de clien\u021bi torrent precum Deluge<\/a><\/noindex>, qBittorrent<\/a><\/noindex>, Folx<\/a><\/noindex>, Lince<\/a><\/noindex>, Miro<\/a><\/noindex> \u0219i Flush<\/a><\/noindex> (nu trebuie confundat\u0103 cu o alt\u0103 bibliotec\u0103 libtorrent<\/a><\/noindex>, care este utilizat\u0103 \u00een rTorrent). Codul libtorrent este scris \u00een C++ \u0219i se r\u0103sp\u00e2nde\u0219te<\/a><\/noindex> sub licen\u021ba BSD.<\/p>\n

lansarea este remarcabil\u0103 prin ad\u0103ugarea<\/a><\/noindex> suportului pentru protocolul BitTorrent v2<\/a><\/noindex>, care abandoneaz\u0103 utilizarea algoritmului SHA-1, ce prezenta probleme<\/a><\/noindex> \u00een selec\u021bia coliziunilor, \u00een favoarea SHA2-256. SHA2-256 este utilizat at\u00e2t pentru controlul integrit\u0103\u021bii blocurilor de date, c\u00e2t \u0219i pentru \u00eenregistr\u0103rile \u00een indec\u0219i (info-dictionary), ceea ce afecteaz\u0103 compatibilitatea cu DHT \u0219i tracker-ele. Pentru linkurile magnetice la torrente cu hash-uri SHA2-256 a fost propus un nou prefix \u00aburn:btmh:\u00bb (pentru SHA-1 \u0219i torrente hibride se folose\u0219te \u00aburn:btih:\u00bb).<\/p>\n

Dat fiind c\u0103 \u00eenlocuirea func\u021biei de hash afecteaz\u0103 compatibilitatea protocolului (un c\u00e2mp cu hash de 32 de bi\u021bi \u00een loc de 20 de bi\u021bi), dezvoltarea specifica\u021biei BitTorrent v2 a fost ini\u021bial efectuat\u0103 f\u0103r\u0103 a \u021bine cont de compatibilitatea \u00eenapoi \u0219i au fost adoptate alte modific\u0103ri semnificative, cum ar fi utilizarea arborilor de hash Merkle \u00een indici pentru a reduce dimensiunea fi\u0219ierelor torrent \u0219i pentru a verifica datele desc\u0103rcate la nivel de bloc.<\/p>\n

Printre modific\u0103rile aduse de BitTorrent v2 se num\u0103r\u0103 \u0219i trecerea la legarea arborelui de hash pentru fiecare fi\u0219ier \u0219i aplicarea aloc\u0103rii fi\u0219ierelor pe p\u0103r\u021bi (f\u0103r\u0103 a ad\u0103uga umplutur\u0103 suplimentar\u0103 dup\u0103 fiecare fi\u0219ier), ceea ce permite eliminarea duplic\u0103rii datelor atunci c\u00e2nd sunt fi\u0219iere identice \u0219i simplific\u0103 identificarea diferitelor surse pentru fi\u0219iere. Eficien\u021ba cod\u0103rii structurii directoarelor \u00een torrent a fost sporit\u0103 \u0219i au fost ad\u0103ugate optimiz\u0103ri pentru gestionarea unui num\u0103r mare de fi\u0219iere mici. <\/p>\n

Pentru a facilita coexistencea \u00eentre BitTorrent v1 \u0219i BitTorrent v2, a fost implementat\u0103 capacitatea de a crea fi\u0219iere torrent hibride care includ, pe l\u00e2ng\u0103 structuri cu hash-uri SHA-1, indici cu SHA2-256.
\nAceste torrente hibride pot fi utilizate cu clien\u021bi care suport\u0103 doar protocolul BitTorrent v1. Suportul anticipat \u00een libtorrent 2.0 pentru protocolul WebTorrent, din cauza problemelor nerezolvate cu stabilitatea a fost am\u00e2nat<\/a><\/noindex> p\u00e2n\u0103 la urm\u0103toarea lansare semnificativ\u0103, care nu va avea loc mai devreme de sf\u00e2r\u0219itul anului. <\/p>\n

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

Sursa: opennet.ro<\/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\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\udd47Lansarea libtorrent 2.0 cu suport pentru protocolul BitTorrent 2 | ProHoster","description":"O nou\u0103 versiune semnificativ\u0103 a bibliotecii libtorrent a fost 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