{"id":111687,"date":"2023-11-22T03:10:24","date_gmt":"2023-11-22T01:10:24","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/czenzuroustojchivaya-sistema-domennyh-imyon-gns-poluchila-status-predlozhennogo-standarta"},"modified":"2023-11-22T03:10:24","modified_gmt":"2023-11-22T01:10:24","slug":"czenzuroustojchivaya-sistema-domennyh-imyon-gns-poluchila-status-predlozhennogo-standarta","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/czenzuroustojchivaya-sistema-domennyh-imyon-gns-poluchila-status-predlozhennogo-standarta","title":{"rendered":"Il sistema di nomi di dominio GNS resistente alla censura ha ottenuto lo status di standard proposto","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Il Comitato IETF (Internet Engineering Task Force), responsabile dello sviluppo dei protocolli e dell'architettura di Internet, ha completato la stesura del RFC per il sistema di nomi di dominio GNS (GNU Name System), sviluppato dal progetto GNUnet come un'alternativa completamente decentralizzata e non censurabile al DNS. La specifica, pubblicata come RFC-9498, ha ottenuto lo status di \"Standard proposto\". L'implementazione di GNS completamente conforme al RFC pubblicato \u00e8 parte della piattaforma GNUnet 0.20.0 ed \u00e8 inoltre disponibile nel codice sorgente del progetto GNUnet-Go. <\/p>\n

GNS pu\u00f2 essere utilizzato affianco al DNS e impiegato in applicazioni tradizionali, come i browser web. L'integrit\u00e0 e l'immutabilit\u00e0 delle registrazioni sono garantite dall'uso di meccanismi crittografici. A differenza del DNS, GNS utilizza un grafo diretto anzich\u00e9 una gerarchia ad albero. server<\/a> viene utilizzato un grafo diretto. La trasformazione dei nomi \u00e8 simile a quella del DNS, ma le richieste e le risposte vengono eseguite mantenendo la riservatezza \u2014 il nodo che elabora la richiesta non sa a chi viene fornita la risposta, e i nodi di transito e gli osservatori esterni non possono decifrare le richieste e le risposte. <\/p>\n

La zona DNS in GNS \u00e8 definita tramite una coppia di chiavi aperta e chiusa ECDSA basata su curve ellittiche Curve25519. L'uso di Curve25519 \u00e8 visto da alcuni come una scelta piuttosto strana, poich\u00e9 per l'ECDSA vengono normalmente utilizzati altri tipi di curve ellittiche, e in abbinamento a Curve25519 si utilizza di solito l'algoritmo di firma digitale Ed25519, pi\u00f9 moderno, pi\u00f9 sicuro e pi\u00f9 veloce rispetto all'ECDSA. Dal punto di vista della resistenza crittografica, solleva anche dubbi la scelta delle dimensioni della chiave \u2014 32 byte invece di 64 byte, utilizzate di solito per Ed25519, cos\u00ec come l'uso della crittografia simmetrica a cascata, utilizzando gli algoritmi AES e TwoFish in modalit\u00e0 CFB. <\/p>\n

Questo approccio \u00e8 giustificato dalla necessit\u00e0 di implementare chiavi gerarchiche che permettano di utilizzare la chiave pubblica radice per estrarre una chiave pubblica secondaria, sfruttando la propriet\u00e0 di linearit\u00e0 della curva Curve25519. Questa caratteristica consente di ottenere chiavi pubbliche secondarie senza conoscere le chiavi private radice. Questa tecnica \u00e8 utilizzata anche in Bitcoin. La dimensione della chiave di 32 byte \u00e8 stata scelta affinch\u00e9 rientrasse in un'unica registrazione DNS.
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u0438\u0442\u0435\u0442 IETF (Internet Engineering Task Force), \u0437\u0430\u043d\u0438\u043c\u0430\u044e\u0449\u0438\u0439\u0441\u044f \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435\u043c \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 \u0438 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b \u0438\u043d\u0442\u0435\u0440\u043d\u0435\u0442\u0430, \u0437\u0430\u0432\u0435\u0440\u0448\u0438\u043b \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 RFC \u0434\u043b\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0434\u043e\u043c\u0435\u043d\u043d\u044b\u0445 \u0438\u043c\u0451\u043d GNS (GNU Name System), \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u043c\u043e\u0439 \u043f\u0440\u043e\u0435\u043a\u0442\u043e\u043c GNUnet \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e 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GNS \u0432\u0445\u043e\u0434\u0438\u0442 \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b GNUnet […]<\/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-111687","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\udd47Il sistema di nomi di dominio resistente alla censura GNS ha ricevuto lo status di standard proposto | ProHoster","description":"Il comitato IETF (Internet Engineering Task Force), che si occupa dello sviluppo dei protocolli e dell'architettura di Internet, ha completato la 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