{"id":421,"date":"2010-09-23T07:30:11","date_gmt":"2010-09-23T14:30:11","guid":{"rendered":"http:\/\/www.evardsson.com\/blog\/?p=421"},"modified":"2010-09-23T13:06:31","modified_gmt":"2010-09-23T20:06:31","slug":"looking-into-evercookie","status":"publish","type":"post","link":"https:\/\/www.evardsson.com\/blog\/2010\/09\/23\/looking-into-evercookie\/","title":{"rendered":"Looking into evercookie"},"content":{"rendered":"<p>Things have been rather quiet around here lately as I have been busy with work and school. Something in my twitter stream yesterday caught my eye, though. It seems that Samy Kamkar has come up with a way to make a <a href=\"http:\/\/samy.pl\/evercookie\/\">seriously persistent cookie<\/a>. How does it work? By storing the cookie value in (currently) 10 different methods.<\/p>\n<blockquote>\n<ul>\n<li>Standard HTTP Cookies<\/li>\n<li>Local Shared Objects (Flash Cookies)<\/li>\n<li>Storing cookies in RGB values of auto-generated, force-cached PNGs using HTML5 Canvas tag to read pixels (cookies) back out<\/li>\n<li>Storing cookies in and reading out Web History<\/li>\n<li>Storing cookies in HTTP ETags<\/li>\n<li>Internet Explorer userData storage<\/li>\n<li>HTML5 Session Storage<\/li>\n<li>HTML5 Local Storage<\/li>\n<li>HTML5 Global Storage<\/li>\n<li>HTML5 Database Storage via SQLite<\/li>\n<\/ul>\n<\/blockquote>\n<p>It seems from the site that this is a project in current development with even more methods to come. Currently the only mitigation is using <a href=\"http:\/\/www.apple.com\/safari\/download\/\">Safari<\/a> in Privacy Mode which destroys all versions of the evercookie on browser restart. In the coming weeks I will have some time to spend on personal projects, and I may use some of that time to look into this further.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Things have been rather quiet around here lately as I have been busy with work and school. Something in my twitter stream yesterday caught my eye, though. It seems that Samy Kamkar has come up &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[30,56,32,10],"tags":[110,147],"class_list":["post-421","post","type-post","status-publish","format-standard","hentry","category-html","category-html5","category-javascript","category-security","tag-privacy","tag-security"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pxT7i-6N","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.evardsson.com\/blog\/wp-json\/wp\/v2\/posts\/421","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.evardsson.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.evardsson.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.evardsson.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.evardsson.com\/blog\/wp-json\/wp\/v2\/comments?post=421"}],"version-history":[{"count":2,"href":"https:\/\/www.evardsson.com\/blog\/wp-json\/wp\/v2\/posts\/421\/revisions"}],"predecessor-version":[{"id":424,"href":"https:\/\/www.evardsson.com\/blog\/wp-json\/wp\/v2\/posts\/421\/revisions\/424"}],"wp:attachment":[{"href":"https:\/\/www.evardsson.com\/blog\/wp-json\/wp\/v2\/media?parent=421"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.evardsson.com\/blog\/wp-json\/wp\/v2\/categories?post=421"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.evardsson.com\/blog\/wp-json\/wp\/v2\/tags?post=421"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}