{"id":100704,"date":"2021-07-07T16:22:52","date_gmt":"2021-07-07T14:22:55","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-tor-browser-10-5"},"modified":"2021-07-07T16:22:52","modified_gmt":"2021-07-07T14:22:55","slug":"vypusk-tor-browser-10-5","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/vypusk-tor-browser-10-5","title":{"rendered":"Lan\u00e7amento do Tor Browser 10.5","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Ap\u00f3s dez meses de desenvolvimento, foi lan\u00e7ado um importante update do navegador especializado Tor Browser 10.5, que continua a evolu\u00e7\u00e3o das funcionalidades da vers\u00e3o ESR do Firefox 78. O navegador foca em garantir anonimato, seguran\u00e7a e privacidade, redirecionando todo o tr\u00e1fego apenas pela rede Tor. N\u00e3o \u00e9 poss\u00edvel acessar diretamente atrav\u00e9s da conex\u00e3o de rede padr\u00e3o do sistema atual, o que impede a rastreabilidade do verdadeiro IP do usu\u00e1rio (em caso de invas\u00e3o do navegador, atacantes podem acessar os par\u00e2metros de rede do sistema, por isso, para bloquear completamente poss\u00edveis vazamentos, \u00e9 recomend\u00e1vel usar produtos como Whonix). As compila\u00e7\u00f5es do Tor Browser est\u00e3o dispon\u00edveis para Linux, Windows e macOS.     <\/p>\n<p>Para proporcionar prote\u00e7\u00e3o adicional, o Tor Browser inclui a extens\u00e3o HTTPS Everywhere, que permite a utiliza\u00e7\u00e3o de criptografia de tr\u00e1fego em todos os sites, quando poss\u00edvel. Para reduzir as amea\u00e7as de ataques que usam JavaScript e bloquear plugins por padr\u00e3o, a extens\u00e3o NoScript \u00e9 inclu\u00edda. Para combater o bloqueio e a inspe\u00e7\u00e3o de tr\u00e1fego, s\u00e3o utilizados fteproxy e obfs4proxy.     <\/p>\n<p>Para a cria\u00e7\u00e3o de um canal de comunica\u00e7\u00e3o criptografado em ambientes que bloqueiam qualquer tr\u00e1fego exceto HTTP, s\u00e3o oferecidos transportes alternativos que, por exemplo, permitem contornar tentativas de bloquear o Tor na China. Para prote\u00e7\u00e3o contra rastreamento da movimenta\u00e7\u00e3o do usu\u00e1rio e para evitar caracter\u00edsticas espec\u00edficas de cada visitante, as APIs WebGL, WebGL2, WebAudio, Social, SpeechSynthesis, Touch, AudioContext, HTMLMediaElement, Mediastream, Canvas, SharedWorker, WebAudio, Permissions, MediaDevices.enumerateDevices e screen.orientation foram desativadas ou limitadas, assim como foram desativados os meios de envio de telemetria, Pocket, Reader View, HTTP Alternative-Services, MozTCPSocket, &#171;link rel=preconnect&#187;, e foi modificado o libmdns.      <\/p>\n<p>Na nova vers\u00e3o:  <\/p>\n<ul>\n<li class=\"l\"> Foi adicionado um novo gateway de ponte embutido, chamado &#171;Snowflake&#187;, utilizado para conex\u00e3o em locais onde a bloqueio do Tor \u00e9 aplicado, que utiliza uma rede de proxies.<a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pt\/server\/\"   title=\"servidores\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1594\">servidores<\/a>Funcionalmente, o Snowflake se assemelha ao proxy Flash, mas resolve problemas relacionados ao NAT. A intera\u00e7\u00e3o com os proxies \u00e9 feita por meio do protocolo P2P WebRTC, que suporta a passagem por tradutores de endere\u00e7os.\n<p>Atualmente, existem cerca de 8000 proxies ativos diariamente, funcionando em v\u00e1rias redes ao redor do mundo. A manuten\u00e7\u00e3o de uma grande rede de servidores proxy \u00e9 facilitada pelo fato de que n\u00e3o \u00e9 necess\u00e1rio executar um aplicativo de servidor para iniciar seu pr\u00f3prio proxy, bastando instalar um complemento especial no navegador do usu\u00e1rio. No in\u00edcio da conex\u00e3o, \u00e9 utilizada a t\u00e9cnica &#171;domain fronting&#187;, que permite fazer solicita\u00e7\u00f5es HTTPS com um host fict\u00edcio no SNI e a real transfer\u00eancia do nome do host solicitado no cabe\u00e7alho Host dentro da sess\u00e3o TLS (por exemplo, \u00e9 poss\u00edvel utilizar redes de entrega de conte\u00fado para contornar bloqueios).   <center><img decoding=\"async\" alt=\"Lan\u00e7amento do Tor Browser 10.5\" src=\"\/wp-content\/uploads\/2021\/07\/5964a5f08824a02693f01994f8ba2480.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <\/p>\n<li class=\"l\"> Adicionada notifica\u00e7\u00e3o sobre a descontinua\u00e7\u00e3o do suporte a antigos servi\u00e7os onion baseados na segunda vers\u00e3o do protocolo, que foi declarada obsoleta h\u00e1 um ano. A remo\u00e7\u00e3o completa do c\u00f3digo relacionado \u00e0 segunda vers\u00e3o do protocolo est\u00e1 prevista para o outono. A segunda vers\u00e3o do protocolo foi desenvolvida h\u00e1 cerca de 16 anos e, devido ao uso de algoritmos obsoletos, n\u00e3o pode ser considerada segura nas condi\u00e7\u00f5es atuais. H\u00e1 dois anos e meio, na vers\u00e3o 0.3.2.9, os usu\u00e1rios foram apresentados \u00e0 terceira vers\u00e3o do protocolo para servi\u00e7os onion, not\u00e1vel pela transi\u00e7\u00e3o para endere\u00e7os de 56 caracteres, prote\u00e7\u00e3o mais confi\u00e1vel contra vazamentos de dados atrav\u00e9s de servidores de diret\u00f3rios, estrutura modular expans\u00edvel e o uso de algoritmos SHA3, ed25519 e curve25519 em vez de SHA1, DH e RSA-1024.    <center><img decoding=\"async\" alt=\"Lan\u00e7amento do Tor Browser 10.5\" src=\"\/wp-content\/uploads\/2021\/07\/6a0ef497afda5ff9a67e9978d56a3ae2.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> A interface de conex\u00e3o inicial \u00e0 rede Tor foi aprimorada, agora movida do painel para a tela principal e implementada na forma de uma nova p\u00e1gina de servi\u00e7o &#171;about:torconnect&#187;. O navegador agora detecta automaticamente a opera\u00e7\u00e3o em redes censur\u00e1veis e oferece gateways de ponte para contornar bloqueios.      <center><img decoding=\"async\" alt=\"Lan\u00e7amento do Tor Browser 10.5\" src=\"\/wp-content\/uploads\/2021\/07\/fad3f5fec5a2f5c84f12a926f1af7ee4.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> Na plataforma Linux, foram garantidas capacidades de compila\u00e7\u00e3o com suporte a Wayland.\n<li class=\"l\"> Atualizadas as vers\u00f5es do NoScript 11.2.9, Tor Launcher 0.2.30, libevent 2.1.12.\n<li class=\"l\"> O suporte ao CentOS 6 foi descontinuado.      <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55449\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u0434\u0435\u0441\u044f\u0442\u0438 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 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\u0430\u043d\u043e\u043d\u0438\u043c\u043d\u043e\u0441\u0442\u0438, \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0438 \u043f\u0440\u0438\u0432\u0430\u0442\u043d\u043e\u0441\u0442\u0438, \u0432\u0435\u0441\u044c \u0442\u0440\u0430\u0444\u0438\u043a \u043f\u0435\u0440\u0435\u043d\u0430\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0442\u043e\u043b\u044c\u043a\u043e \u0447\u0435\u0440\u0435\u0437 \u0441\u0435\u0442\u044c Tor. \u041e\u0431\u0440\u0430\u0442\u0438\u0442\u044c\u0441\u044f \u043d\u0430\u043f\u0440\u044f\u043c\u0443\u044e \u0447\u0435\u0440\u0435\u0437 \u0448\u0442\u0430\u0442\u043d\u043e\u0435 \u0441\u0435\u0442\u0435\u0432\u043e\u0435 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 \u0442\u0435\u043a\u0443\u0449\u0435\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043d\u0435\u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e, \u0447\u0442\u043e \u043d\u0435 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043e\u0442\u0441\u043b\u0435\u0434\u0438\u0442\u044c \u0440\u0435\u0430\u043b\u044c\u043d\u044b\u0439 IP \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f (\u0432 \u0441\u043b\u0443\u0447\u0430\u0435 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":100705,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-100704","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0441\u043b\u0435 \u0434\u0435\u0441\u044f\u0442\u0438 \u043c\u0435\u0441\u044f\u0446\u0435\u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d 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