{"id":150385,"date":"2025-12-02T23:11:56","date_gmt":"2025-12-02T21:11:56","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/lets-encrypt-umenshit-srok-dejstviya-sertifikatov-do-45-dnej"},"modified":"2025-12-02T23:11:56","modified_gmt":"2025-12-02T21:11:56","slug":"lets-encrypt-umenshit-srok-dejstviya-sertifikatov-do-45-dnej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/lets-encrypt-umenshit-srok-dejstviya-sertifikatov-do-45-dnej","title":{"rendered":"Let's Encrypt reduzir\u00e1 a validade dos certificados para 45 dias.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A autoridade certificadora sem fins lucrativos Let's Encrypt, gerida pela comunidade e que fornece certificados de forma gratuita a todos os interessados, anunciou a decis\u00e3o de reduzir gradualmente a validade dos certificados TLS emitidos de 90 para 45 dias. No dia 10 de fevereiro de 2027, a validade dos certificados ser\u00e1 reduzida para 64 dias, e no dia 16 de fevereiro de 2028 \u2014 para 45 dias. A op\u00e7\u00e3o de obter certificados com validade de 45 dias estar\u00e1 dispon\u00edvel a partir de 13 de maio de 2026. <\/p>\n

Simultaneamente, o per\u00edodo de validade da autoriza\u00e7\u00e3o tamb\u00e9m ser\u00e1 reduzido de forma gradual \u2014 no dia 10 de fevereiro de 2027, ele ser\u00e1 reduzido de 30 para 10 dias, e no dia 16 de fevereiro de 2028 \u2014 de 10 dias para 7 horas. O per\u00edodo de validade da autoriza\u00e7\u00e3o refere-se ao tempo ap\u00f3s a confirma\u00e7\u00e3o de seus direitos sobre. o dom\u00ednio<\/a>, durante o qual o certificado pode ser emitido sem a necessidade de novas verifica\u00e7\u00f5es. Ap\u00f3s o t\u00e9rmino desse per\u00edodo, uma nova confirma\u00e7\u00e3o de direitos \u00e9 necess\u00e1ria. <\/p>\n

A raz\u00e3o para a redu\u00e7\u00e3o da validade dos certificados \u00e9 a nova exig\u00eancia da associa\u00e7\u00e3o CA\/Browser Forum, que deve ser seguida pelos fabricantes de navegadores e autoridades certificadoras. Uma redu\u00e7\u00e3o similar da validade ser\u00e1 implementada por todas as autoridades certificadoras. O CA\/Browser Forum estabeleceu o prazo final para a implementa\u00e7\u00e3o em mar\u00e7o de 2029, e a validade m\u00e1xima do certificado ser\u00e1 de 47 dias. Ap\u00f3s mar\u00e7o de 2029, o processamento de novos certificados nos navegadores, cuja validade exceda 47 dias, resultar\u00e1 em erros 'ERR_CERT_VALIDITY_TOO_LONG'. <\/p>\n

Entre as vantagens da transi\u00e7\u00e3o para certificados de curta dura\u00e7\u00e3o, destaca-se a possibilidade de diminuir o tempo de implementa\u00e7\u00e3o de novos algoritmos criptogr\u00e1ficos caso sejam identificadas vulnerabilidades nos algoritmos atualmente em uso, al\u00e9m do aumento da seguran\u00e7a. Por exemplo, no caso de uma fuga oculta de um certificado devido a uma invas\u00e3o, certificados de curta validade impedir\u00e3o que atacantes controlem o tr\u00e1fego da v\u00edtima por um longo per\u00edodo ou usem os certificados para phishing. Verifica\u00e7\u00f5es mais frequentes de posse de dom\u00ednio e a redu\u00e7\u00e3o dos prazos de validade dos certificados tamb\u00e9m diminuir\u00e3o a probabilidade de que um certificado continue em vigor ap\u00f3s a perda de relev\u00e2ncia das informa\u00e7\u00f5es contidas nele, reduzindo assim o risco de dissemina\u00e7\u00e3o de certificados emitidos incorretamente. <\/p>\n

Em virtude da redu\u00e7\u00e3o da validade dos certificados, a Let's Encrypt recomenda que os usu\u00e1rios n\u00e3o atualizem os certificados manualmente, mas sim que adotem sistemas autom\u00e1ticos de gerenciamento de certificados. Al\u00e9m disso, os usu\u00e1rios que j\u00e1 utilizam sistemas automatizados devem garantir que suas ferramentas suportem corretamente certificados com validade reduzida. Para coordenar a atualiza\u00e7\u00e3o autom\u00e1tica oportuna dos certificados, os administradores podem usar a extens\u00e3o do protocolo ARI (ACME Renewal Information), que permite obter informa\u00e7\u00f5es sobre a necessidade de atualiza\u00e7\u00e3o dos certificados e escolher o momento ideal para a atualiza\u00e7\u00e3o. Tamb\u00e9m \u00e9 \u00fatil configurar um sistema de monitoramento para identificar situa\u00e7\u00f5es em que um certificado n\u00e3o foi atualizado a tempo. <\/p>\n

Para simplificar a confirma\u00e7\u00e3o de direitos sobre o dom\u00ednio, o projeto Let's Encrypt planeja implementar em 2026 um novo m\u00e9todo de verifica\u00e7\u00e3o DNS-PERSIST-01, que, ao contr\u00e1rio dos m\u00e9todos HTTP-01 e DNS-01, n\u00e3o requer a atualiza\u00e7\u00e3o de informa\u00e7\u00f5es a cada verifica\u00e7\u00e3o nem que o cliente ACME tenha acesso \u00e0 infraestrutura web ou ao servidor DNS. No PERSIST-01, \u00e9 suficiente adicionar uma vez ao DNS um determinado registro TXT ('_validation-persist.example.com. IN TXT (\"ca.example;\" accounturi=https:\/\/ca.example\/acct\/123)') e o cliente ACME poder\u00e1 realizar a autoriza\u00e7\u00e3o sem a necessidade de atualizar os dados no DNS.
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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\u0434\u043d\u0435\u0439, […]<\/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-150385","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\udd47Let's Encrypt reduzir\u00e1 a validade dos certificados para 45 dias | ProHoster","description":"A autoridade certificadora sem fins lucrativos Let's Encrypt, controlada pela comunidade e que oferece certificados gratuitamente a todos que desejam, anunciou a decis\u00e3o de reduzir gradualmente a validade dos certificados TLS 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