{"id":143815,"date":"2025-09-18T17:11:56","date_gmt":"2025-09-18T15:11:56","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-p2p-platformy-gnunet-0-25"},"modified":"2025-09-18T17:11:56","modified_gmt":"2025-09-18T15:11:56","slug":"vypusk-p2p-platformy-gnunet-0-25","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/vypusk-p2p-platformy-gnunet-0-25","title":{"rendered":"Udgivelse af P2P-platformen GNUnet 0.25","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Udgivelsen af GNUnet 0.25-rammen, der er designet til at opbygge sikre, decentrale P2P-netv\u00e6rk, er blevet pr\u00e6senteret. Netv\u00e6rk, der er oprettet ved hj\u00e6lp af GNUnet, har ikke et enkelt punkt for fejl og kan garantere brugernes privatliv, herunder udelukke mulige misbrug fra administratorer, der har adgang til netv\u00e6rksknuderne.       <\/p>\n<p>GNUnet underst\u00f8tter oprettelse af P2P-netv\u00e6rk oven p\u00e5 TCP, UDP, HTTP\/HTTPS, Bluetooth og WLAN, og det kan arbejde i F2F (Friend-to-friend) tilstand. NAT-omg\u00e5else underst\u00f8ttes, herunder ved brug af UPnP og ICMP. Til adressering af dataplacering kan der anvendes en distribueret hash-tabel (DHT). Der tilbydes v\u00e6rkt\u00f8jer til implementering af mesh-netv\u00e6rk. For selektivt at give og tilbagekalde adgangsrettigheder anvendes en tjeneste til decentraliseret identitetsattributudveksling, reclaimID, som bruger GNS (GNU Name System) og attributbaseret kryptering (Attribute-Based Encryption).    <\/p>\n<p>Systemet har et lavt ressourceforbrug og anvender en flerprocessarkitektur for at sikre isolering mellem komponenterne. Det tilbyder midler til logf\u00f8ring og indsamling af statistik. GNUnet giver et grundl\u00e6ggende API til C og bindings til andre programmeringssprog til udvikling af slutapplikationer. For at forenkle udviklingen anbefales det at bruge begivenhedsl\u00f8kker i stedet for tr\u00e5de. Systemet inkluderer et testbibliotek til automatisk implementering af eksperimentelle netv\u00e6rk, der d\u00e6kker titusindvis af peers.         <\/p>\n<p>Der udvikles flere f\u00e6rdige applikationer baseret p\u00e5 GNUnet-teknologier:   <\/p>\n<ul>\n<li class=\"l\"> GNS-systemet (GNU Name System) fungerer som et fuldt decentraliseret og censurfrit alternativ til DNS. GNS kan bruges sidel\u00f8bende med DNS og anvendes i traditionelle applikationer som web-browsere. I mods\u00e6tning til DNS anvender GNS en rettet graf i stedet for en tr\u00e6struktur for servere. Navne\u00e6ndringer ligner dem fra DNS, men foresp\u00f8rgsler og svar udf\u00f8res med beskyttelse af privatlivets fred \u2014 den behandleran node ved ikke, hvem svaret gives til, og transitnoder samt tredjepartsobservat\u00f8rer kan ikke dekryptere foresp\u00f8rgsler og svar. Integriteten og uforanderligheden af optegnelser sikres gennem brug af kryptografiske mekanismer. DNS-zonen i GNS defineres ved hj\u00e6lp af et s\u00e6t best\u00e5ende af en offentlig og en privat n\u00f8gle ECDSA baseret p\u00e5 elliptiske kurver Curve25519.                   <\/li>\n<li class=\"l\"> En tjeneste til anonym filudveksling, der ikke tillader analyse af oplysninger ved kun at overf\u00f8re data i krypteret form og ikke g\u00f8r det muligt at spore, hvem der har uploadet, s\u00f8gt og downloadet filer, takket v\u00e6re brugen af GAP-protokollen.                 <\/li>\n<li class=\"l\"> System <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/da\/vpn\/\"   title=\"VPN\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"281\">VPN<\/a> til oprettelse af skjulte tjenester i dom\u00e6net \u00ab.gnu\u00bb og tunneling af IPv4 og IPv6 over et P2P-netv\u00e6rk. Der underst\u00f8ttes desuden konverteringsskemaer fra IPv4 til IPv6 og fra IPv6 til IPv4 samt oprettelse af tunneler fra IPv4 over IPv6 og fra IPv6 over IPv4.      <\/li>\n<li class=\"l\"> GNUnet Conversation-tjenesten til foretagelse af telefonopkald over GNUnet. GNS anvendes til identifikation af brugere, og indholdet af stemmetrafikken sendes i krypteret form. Anonymitet tilbydes dog ikke endnu \u2014 andre noder kan spore forbindelsen mellem to brugere og identificere dem. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/da\/lir\/ipv4\/\"   title=\"IP-adresser\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"737\">IP-adresser<\/a>.  <\/li>\n<li class=\"l\"> Platformen til opbygning af decentrale sociale netv\u00e6rk Secushare, der bruger PSYC-protokollen og underst\u00f8tter distribution af meddelelser i multicast-tilstand med end-to-end kryptering, s\u00e5 kun autoriserede brugere (dem, som meddelelserne er adresseret til, inklusive nodeadministratorer, kan l\u00e6se dem) har adgang til meddelelser, filer, chats og diskussioner.    <\/li>\n<li class=\"l\"> Betalingssystemet GNU Taler, der giver anonymitet for k\u00f8bere, men sporer s\u00e6lgernes transaktioner for at sikre gennemsigtighed og give skatteopg\u00f8relser. Det underst\u00f8tter samarbejde med forskellige eksisterende valutaer og elektroniske penge, herunder dollars, euro og bitcoins.      <\/li>\n<li class=\"l\"> Tjenesten GNUnet Messenger til at oprette sikre chatapplikationer. For at sikre fortrolighed og beskytte mod aflytning anvendes CADET-protokollen (Confidential Ad-hoc Decentralized End-to-End Transport), som muligg\u00f8r helt decentraliseret interaktion mellem en gruppe brugere ved hj\u00e6lp af ende-til-ende kryptering af de overf\u00f8rte data.     <\/li>\n<\/ul>\n<p>I den nye version:  <\/p>\n<ul>\n<li class=\"l\"> KERN-subsystemet, der sikrer routing og informationsudveksling mellem knuder i det decentrale netv\u00e6rk, er blevet omarbejdet. En ny implementering af sikre kommunikationskanaler er blevet foresl\u00e5et, hvor en variant af KEMTLS protokollen til krypterede forbindelser anvendes, som bruger algoritmerne X25519, XChaCha20 og Poly1305, samt mange koncepter fra DTLS 1.3-protokollen.\n<li class=\"l\"> Tjenesten PILS (Peer Identity Lifecycle) er tilf\u00f8jet til identifikation af netv\u00e6rksdeltagere, hvilket g\u00f8r det muligt at danne peer-identifikatorer afh\u00e6ngigt af den aktuelle kontekst for forbindelsen. For eksempel vil der blive dannet \u00e9n identifikator, n\u00e5r en deltager f\u00e5r adgang hjemmefra, og en anden, n\u00e5r de rejser til udlandet, hvilket forhindrer sporing af deltagerens bev\u00e6gelser.\n<li class=\"l\"> Ydeevnen for tjenesten til overf\u00f8rsel (AXFR\/IXFR) af DNS-zoner i GNS er blevet v\u00e6sentligt forbedret. Nye v\u00e6rkt\u00f8jer til spejling og import af DNS-zoner fra filer er blevet tilf\u00f8jet.\n<li class=\"l\"> Underst\u00f8ttelsen af AutoTools er blevet afbrudt i byggev\u00e6rkt\u00f8jet.          <\/ul>\n<p>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=63901\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0444\u0440\u0435\u0439\u043c\u0432\u043e\u0440\u043a\u0430 GNUnet 0.25, \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u043e\u0433\u043e \u0434\u043b\u044f \u043f\u043e\u0441\u0442\u0440\u043e\u0435\u043d\u0438\u044f \u0437\u0430\u0449\u0438\u0449\u0451\u043d\u043d\u044b\u0445 \u0434\u0435\u0446\u0435\u043d\u0442\u0440\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u044b\u0445 P2P-\u0441\u0435\u0442\u0435\u0439. \u0421\u043e\u0437\u0434\u0430\u0432\u0430\u0435\u043c\u044b\u0435 \u043f\u0440\u0438 \u043f\u043e\u043c\u043e\u0449\u0438 GNUnet \u0441\u0435\u0442\u0438 \u043d\u0435 \u0438\u043c\u0435\u044e\u0442 \u0435\u0434\u0438\u043d\u043e\u0439 \u0442\u043e\u0447\u043a\u0438 \u043e\u0442\u043a\u0430\u0437\u0430 \u0438 \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u044b \u0433\u0430\u0440\u0430\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u043d\u0435\u043f\u0440\u0438\u043a\u043e\u0441\u043d\u043e\u0432\u0435\u043d\u043d\u043e\u0441\u0442\u044c \u0447\u0430\u0441\u0442\u043d\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439, \u0432 \u0442\u043e\u043c \u0447\u0438\u0441\u043b\u0435 \u0438\u0441\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u0437\u043b\u043e\u0443\u043f\u043e\u0442\u0440\u0435\u0431\u043b\u0435\u043d\u0438\u044f \u0441\u043e \u0441\u0442\u043e\u0440\u043e\u043d\u044b \u0430\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u043e\u0432, \u0438\u043c\u0435\u044e\u0449\u0438\u0445 \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0443\u0437\u043b\u0430\u043c \u0441\u0435\u0442\u0438. 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