{"id":44053,"date":"2014-11-21T09:46:28","date_gmt":"2014-11-21T12:46:28","guid":{"rendered":"https:\/\/www.smart-gsm.com\/blog\/?p=44053"},"modified":"2014-11-21T10:23:28","modified_gmt":"2014-11-21T13:23:28","slug":"encriptacion-android-5-0-performance","status":"publish","type":"post","link":"https:\/\/www.smart-gsm.com\/blog\/encriptacion-android-5-0-performance\/","title":{"rendered":"Cifrado por defecto en Android 5.0 degrada la performance"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"img-responsive\" src=\"https:\/\/www.smart-gsm.com\/blog\/wp-content\/uploads\/2014\/11\/cifrado.jpg\" alt=\"cifrado\" width=\"620\" height=\"465\" \/><\/p>\n<p>Poco antes del anuncio de la versi\u00f3n final de Android 5.0 Lollipop, nos enteramos de que la nueva versi\u00f3n del sistema operativo de Google tendr\u00eda encriptaci\u00f3n <a title=\"Android L encriptar\u00e1 datos del usuario por defecto en el tel\u00e9fono\" href=\"https:\/\/www.smart-gsm.com\/blog\/android-l-encriptacion-por-defecto\/\" target=\"_blank\">habilitada por defecto<\/a>. El cifrado por defecto es un agregado bienvenido para incrementar la seguridad en Android, pero aparentemente tendr\u00eda un precio, causando problemas de performance.<\/p>\n<p>El sitio <em>AnandTech<\/em> logr\u00f3 conseguir un <a title=\"caracteristicas Google Nexus 6\" href=\"https:\/\/www.smart-gsm.com\/moviles\/google-nexus-6\" target=\"_blank\">Nexus 6<\/a> provisto por <a title=\"celulares Motorola\" href=\"https:\/\/www.smart-gsm.com\/fabricantes\/motorola\" target=\"_blank\"><strong>Motorola<\/strong><\/a> sin la encriptaci\u00f3n habilitada, para compararlo con los Nexus 6 disponibles en el mercado, que son cifrados por defecto, bajo la sospecha de que \u00e9sta podr\u00eda ser la causa de los problemas. Las pruebas confirmaron que la performance de lectura en el Nexus 6 encriptado puede descender hasta un 63%, mientras que las velocidades de escritura lo hacen hasta un 50%.<\/p>\n<p><!--more--><\/p>\n<p>Como para aumentar el problema, los nuevos equipos que se venden con Android 5.0 &#8211; como el Nexus 5, y el Nexus 9 &#8211; tendr\u00e1n el encriptado habilitado autom\u00e1ticamente durante el proceso de activaci\u00f3n, y una vez realizado, no hay forma de deshabilitarlo, quedando condenado a la degradaci\u00f3n en performance.<\/p>\n<p>Diferente es el caso de las actualizaciones a Lollipop desde versiones anteriores de Android, en los cuales se puede revertir la encriptaci\u00f3n y recuperar la performance perdida.<\/p>\n<p>Es probable que Google est\u00e9 activamente trabajando en optimizar el c\u00f3digo para que la degradaci\u00f3n de performance no sea tan severa &#8211; teniendo en cuenta que la encriptaci\u00f3n tendr\u00e1 si o si un impacto en ella, dada la capa extra.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Poco antes del anuncio de la versi\u00f3n final de Android 5.0 Lollipop, nos enteramos de que la nueva versi\u00f3n del sistema operativo de Google tendr\u00eda encriptaci\u00f3n habilitada por defecto. El&#8230;<\/p>\n","protected":false},"author":1,"featured_media":44056,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"initial","rop_publish_now_accounts":[],"rop_publish_now_history":[],"rop_publish_now_status":"pending","footnotes":""},"categories":[4],"tags":[17],"class_list":["post-44053","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias","tag-android"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cifrado por defecto en Android 5.0 degrada la performance - SmartGSM - Blog<\/title>\n<meta name=\"robots\" content=\"noindex, follow\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cifrado por defecto en Android 5.0 degrada la performance - SmartGSM - Blog\" \/>\n<meta property=\"og:description\" content=\"Poco antes del anuncio de la versi\u00f3n final de Android 5.0 Lollipop, nos enteramos de que la nueva versi\u00f3n del sistema operativo de Google tendr\u00eda encriptaci\u00f3n habilitada por defecto. 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