{"id":3991,"date":"2020-12-22T10:11:39","date_gmt":"2020-12-22T09:11:39","guid":{"rendered":"https:\/\/esferas.org\/msqlu\/?p=3991"},"modified":"2020-12-22T10:12:13","modified_gmt":"2020-12-22T09:12:13","slug":"nextcloud-de-19-a-20-problemas-de-cifrado","status":"publish","type":"post","link":"https:\/\/esferas.org\/msqlu\/2020\/12\/22\/nextcloud-de-19-a-20-problemas-de-cifrado\/","title":{"rendered":"nextcloud de 19 a 20: problemas de cifrado"},"content":{"rendered":"<div class='__iawmlf-post-loop-links' style='display:none;' data-iawmlf-post-links='[{&quot;id&quot;:192,&quot;href&quot;:&quot;https:\\\/\\\/docs.nextcloud.com\\\/server\\\/20\\\/admin_manual\\\/configuration_files\\\/encryption_migration.html&quot;,&quot;archived_href&quot;:&quot;https:\\\/\\\/web-wp.archive.org\\\/web\\\/20260207032630\\\/https:\\\/\\\/docs.nextcloud.com\\\/server\\\/20\\\/admin_manual\\\/configuration_files\\\/encryption_migration.html&quot;,&quot;redirect_href&quot;:&quot;&quot;,&quot;checks&quot;:[{&quot;date&quot;:&quot;2026-04-15 10:49:33&quot;,&quot;http_code&quot;:206}],&quot;broken&quot;:false,&quot;last_checked&quot;:{&quot;date&quot;:&quot;2026-04-15 10:49:33&quot;,&quot;http_code&quot;:206},&quot;process&quot;:&quot;done&quot;}]'><\/div>\n<p>O, dicho de otra manera, una vez actualizado el sistema te puedes encontrar con que no arranque.<\/p>\n\n\n\n<!--more-->\n\n\n\n<p>Un mensaje cr\u00edptico sobre un problema criptogr\u00e1fico (resulta ir\u00f3nico):<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">An unhandled exception has been thrown:\n Exception: Authenticated ciphertext could not be decoded. in \/opt\/nextcloud\/lib\/private\/Security\/Crypto.php:122<\/pre>\n\n\n\n<p>Seguido del  volcado de pila tradicional del PHP que es tan colorido como in\u00fatil. Pero mira, por una vez no estoy solo. Por lo visto es algo que ocurre en bastantes casos porque el cifrado parece cambiar a nivel profundo en la nueva versi\u00f3n y estamos tan acostumbrados a instalar sin leer los cambios  que poco nos pasa.<\/p>\n\n\n\n<p>La soluci\u00f3n para que el sistema vuelva a arrancar la he encontrado en este foro de errores de Nextcloud en github y consiste en a\u00f1adir en el archivo de configuraci\u00f3n las siguientes dos l\u00edneas:<\/p>\n\n\n\n<pre title=\"\/opt\/nextcloud\/config\/config.php\" class=\"wp-block-code\"><code lang=\"php\" class=\"language-php\">'encryption.legacy_format_support' =&gt; true,\n'encryption.key_storage_migrated' =&gt; false,<\/code><\/pre>\n\n\n\n<p>Y luego encarar el cambio de cifrado, que viene <a href=\"https:\/\/docs.nextcloud.com\/server\/20\/admin_manual\/configuration_files\/encryption_migration.html\" target=\"_blank\" rel=\"noreferrer noopener\">documentado<\/a>, y al que hay que prestar m\u00e1s atenci\u00f3n. En cuanto me aclare lo anoto por aqu\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>O, dicho de otra manera, una vez actualizado el sistema te puedes encontrar con que no arranque.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","webmentions_disabled_pings":false,"webmentions_disabled":false,"footnotes":""},"categories":[2],"tags":[927,19,705],"class_list":["post-3991","post","type-post","status-publish","format-standard","hentry","category-software","tag-cifrado","tag-errores","tag-nextcloud"],"_links":{"self":[{"href":"https:\/\/esferas.org\/msqlu\/wp-json\/wp\/v2\/posts\/3991","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/esferas.org\/msqlu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/esferas.org\/msqlu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/esferas.org\/msqlu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/esferas.org\/msqlu\/wp-json\/wp\/v2\/comments?post=3991"}],"version-history":[{"count":2,"href":"https:\/\/esferas.org\/msqlu\/wp-json\/wp\/v2\/posts\/3991\/revisions"}],"predecessor-version":[{"id":3993,"href":"https:\/\/esferas.org\/msqlu\/wp-json\/wp\/v2\/posts\/3991\/revisions\/3993"}],"wp:attachment":[{"href":"https:\/\/esferas.org\/msqlu\/wp-json\/wp\/v2\/media?parent=3991"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/esferas.org\/msqlu\/wp-json\/wp\/v2\/categories?post=3991"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/esferas.org\/msqlu\/wp-json\/wp\/v2\/tags?post=3991"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}