{"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\/cs\/blog\/news\/czenzuroustojchivaya-sistema-domennyh-imyon-gns-poluchila-status-predlozhennogo-standarta","title":{"rendered":"Cenzurou odoln\u00fd syst\u00e9m dom\u00e9nov\u00fdch jmen GNS z\u00edskal status navrhovan\u00e9ho standardu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

V\u00fdbor IETF (Internet Engineering Task Force), zodpov\u011bdn\u00fd za v\u00fdvoj internetov\u00fdch protokol\u016f a architektury, dokon\u010dil formov\u00e1n\u00ed RFC pro syst\u00e9m dom\u00e9nov\u00fdch jmen GNS (GNU Name System), kter\u00fd je vyv\u00edjen projektem GNUnet jako zcela decentralizovan\u00e9 a cenzu\u0159e odoln\u00e9 alternativy DNS. Specifikace publikovan\u00e1 jako RFC-9498 z\u00edskala status \u201eNavrhovan\u00e9ho standardu\u201c. Pln\u011b kompatibiln\u00ed implementace GNS, publikovan\u00e1 v RFC, je sou\u010d\u00e1st\u00ed platformy GNUnet 0.20.0 a je tak\u00e9 k dispozici v k\u00f3dov\u00e9 z\u00e1kladn\u011b projektu GNUnet-Go. <\/p>\n

GNS m\u016f\u017ee b\u00fdt pou\u017e\u00edv\u00e1n vedle DNS a aplikac\u00ed, jako jsou webov\u00e9 prohl\u00ed\u017ee\u010de. Integrita a nem\u011bnnost z\u00e1znam\u016f jsou zaji\u0161t\u011bny pomoc\u00ed kryptografick\u00fdch mechanism\u016f. Na rozd\u00edl od DNS pou\u017e\u00edv\u00e1 GNS m\u00edsto stromov\u00e9 hierarchie servery<\/a> se pou\u017e\u00edv\u00e1 orientovan\u00fd graf. P\u0159evod jmen je podobn\u00fd jako u DNS, ale dotazy a odpov\u011bdi se prov\u00e1d\u011bj\u00ed s ochranou soukrom\u00ed \u2014 uzel zpracov\u00e1vaj\u00edc\u00ed dotaz nev\u00ed, komu se odpov\u011b\u010f p\u0159ed\u00e1v\u00e1, a tranzitn\u00ed uzly a extern\u00ed pozorovatel\u00e9 nemohou de\u0161ifrovat dotazy a odpov\u011bdi. <\/p>\n

DNS z\u00f3na v GNS je ur\u010dena pomoc\u00ed p\u00e1ru otev\u0159en\u00e9ho a uzav\u0159en\u00e9ho kl\u00ed\u010de ECDSA zalo\u017een\u00e9ho na eliptick\u00fdch k\u0159ivk\u00e1ch Curve25519. Pou\u017eit\u00ed Curve25519 je n\u011bkter\u00fdmi pova\u017eov\u00e1no za pon\u011bkud zvl\u00e1\u0161tn\u00ed krok, proto\u017ee pro ECDSA se obvykle pou\u017e\u00edvaj\u00ed jin\u00e9 typy eliptick\u00fdch k\u0159ivek, a ve spojen\u00ed s Curve25519 se obvykle pou\u017e\u00edv\u00e1 algoritmus digit\u00e1ln\u00edho podepisov\u00e1n\u00ed Ed25519, kter\u00fd je modern\u011bj\u0161\u00ed, bezpe\u010dn\u011bj\u0161\u00ed a rychlej\u0161\u00ed ne\u017e ECDSA. Z hlediska kryptografick\u00e9 odolnosti tak\u00e9 vyvol\u00e1v\u00e1 pochybnosti v\u00fdb\u011br velikosti kl\u00ed\u010de \u2014 32 bajt\u016f nam\u00edsto 64 bajt\u016f, kter\u00e9 se obvykle pou\u017e\u00edvaj\u00ed pro Ed25519, a tak\u00e9 pou\u017eit\u00ed kask\u00e1dov\u00e9ho symetrick\u00e9ho \u0161ifrov\u00e1n\u00ed, p\u0159i pou\u017eit\u00ed algoritm\u016f AES a TwoFish v re\u017eimu CFB. <\/p>\n

Tento p\u0159\u00edstup je vysv\u011btlen pot\u0159ebou implementace hierarchick\u00fdch kl\u00ed\u010d\u016f, kter\u00e9 umo\u017e\u0148uj\u00ed pou\u017e\u00edt ko\u0159enov\u00fd ve\u0159ejn\u00fd kl\u00ed\u010d k extrakci pod\u0159\u00edzen\u00e9ho ve\u0159ejn\u00e9ho kl\u00ed\u010de, vyu\u017e\u00edvaj\u00edc\u00ed vlastnosti linearity k\u0159ivky Curve25519. Tato vlastnost umo\u017e\u0148uje z\u00edsk\u00e1v\u00e1n\u00ed pod\u0159\u00edzen\u00fdch ve\u0159ejn\u00fdch kl\u00ed\u010d\u016f bez znalosti soukrom\u00fdch ko\u0159enov\u00fdch kl\u00ed\u010d\u016f. Uveden\u00e1 technika se tak\u00e9 pou\u017e\u00edv\u00e1 v Bitcoinu. Velikost kl\u00ed\u010de 32 bajt\u016f byla zvolena tak, aby se kl\u00ed\u010d ve\u0161el do jednoho z\u00e1znamu DNS.
\n
Zdroj: 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 \u0434\u0435\u0446\u0435\u043d\u0442\u0440\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u0438 \u043d\u0435\u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0439 \u0434\u043b\u044f \u0446\u0435\u043d\u0437\u0443\u0440\u044b \u0437\u0430\u043c\u0435\u043d\u044b DNS. \u0421\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f, \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u043d\u0430\u044f \u043a\u0430\u043a RFC-9498, \u043f\u043e\u043b\u0443\u0447\u0438\u043b\u0430 \u0441\u0442\u0430\u0442\u0443\u0441 «\u041f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u043d\u043e\u0433\u043e \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0430». \u041f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0430\u044f \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u043d\u043e\u043c\u0443 RFC \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f 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\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\udd47Cenzurovou odolnou syst\u00e9m dom\u00e9nov\u00fdch jmen GNS z\u00edskal status navrhovan\u00e9ho standardu | ProHoster","description":"Komitet IETF (Internet Engineering Task Force), kter\u00fd se zab\u00fdv\u00e1 v\u00fdvojem protokol\u016f a architektury internetu, 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