Foi lan\u00e7ado o GNUnet 0.17, um framework projetado para construir redes P2P descentralizadas e seguras. As redes criadas com o GNUnet n\u00e3o possuem um \u00fanico ponto de falha e conseguem garantir a privacidade dos usu\u00e1rios, eliminando potenciais abusos por parte de ag\u00eancias de seguran\u00e7a e administradores que tenham acesso aos n\u00f3s da rede. <\/p>\n
O GNUnet suporta a cria\u00e7\u00e3o de redes P2P sobre TCP, UDP, HTTP\/HTTPS, Bluetooth e WLAN, podendo operar no modo F2F (Friend-to-friend). Suporte para a ultrapassagem de NAT, incluindo o uso de UPnP e ICMP, \u00e9 oferecido. Para endere\u00e7amento de armazenamento de dados, \u00e9 poss\u00edvel usar uma tabela hash distribu\u00edda (DHT). Ferramentas para a implementa\u00e7\u00e3o de redes mesh s\u00e3o disponibilizadas. Para concess\u00e3o e revoga\u00e7\u00e3o seletiva de direitos de acesso, \u00e9 utilizado o servi\u00e7o de troca descentralizada de atributos de identifica\u00e7\u00e3o reclaimID, que emprega o GNS (GNU Name System) e criptografia baseada em atributos. <\/p>\n
O sistema se destaca por seu baixo consumo de recursos e pela utiliza\u00e7\u00e3o de uma arquitetura multiprocessada para garantir isolamento entre os componentes. Fornece ferramentas flex\u00edveis para registro de logs e acumula\u00e7\u00e3o de estat\u00edsticas. Para o desenvolvimento de aplicativos finais, o GNUnet disponibiliza uma API para a linguagem C e bindings para outras linguagens de programa\u00e7\u00e3o. Para simplificar o desenvolvimento, sugere-se o uso de loops de eventos em vez de threads e processos. Inclui uma biblioteca de testes para a implanta\u00e7\u00e3o autom\u00e1tica de redes experimentais que abrangem dezenas de milhares de pares. <\/p>\n
V\u00e1rios aplicativos prontos est\u00e3o sendo desenvolvidos com base nas tecnologias GNUnet: <\/p>\n
Na nova vers\u00e3o do GNUnet, foram feitas altera\u00e7\u00f5es que comprometem a compatibilidade do protocolo e podem causar problemas na intera\u00e7\u00e3o entre n\u00f3s baseados no GNUnet 0.17 e vers\u00f5es anteriores. Em particular, a compatibilidade no n\u00edvel da tabela hash distribu\u00edda (DHT) foi afetada \u2014 a implementa\u00e7\u00e3o da DHT foi atualizada para a nova vers\u00e3o da especifica\u00e7\u00e3o, e as defini\u00e7\u00f5es de tipos de blocos foram transferidas para a GANA (GNUnet Assigned Numbers Authority). Foi adicionado suporte a formatos de mensagens alinhados e reagrupados. Altera\u00e7\u00f5es incompat\u00edveis relacionadas ao sistema descentralizado de nomes de dom\u00ednio GNS (GNU Name System) tamb\u00e9m foram trazidas de volta na nova vers\u00e3o da especifica\u00e7\u00e3o. Para registros adicionados ao GNS, foi oferecida a possibilidade de ajustar o tempo de vida do registro. \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 0.17, \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 \u0441\u043f\u0435\u0446\u0441\u043b\u0443\u0436\u0431 \u0438 \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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Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"