{"id":184199,"date":"2005-04-11T00:00:00","date_gmt":"2009-10-31T13:28:48","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/research\/msr-research-item\/secure-content-distribution-using-untrusted-servers\/"},"modified":"2017-07-31T10:51:01","modified_gmt":"2017-07-31T17:51:01","slug":"secure-content-distribution-using-untrusted-servers","status":"publish","type":"msr-video","link":"https:\/\/www.microsoft.com\/en-us\/research\/video\/secure-content-distribution-using-untrusted-servers\/","title":{"rendered":"Secure Content Distribution Using Untrusted Servers"},"content":{"rendered":"<div class=\"asset-content\">\n<p>A publisher can make content available to many readers through replication on remote, untrusted computers. Yet a reader should have confidence that content is authentic, and publishers should be able to control access to content. This talk presents the design and implementation of the SFS read-only file system (SFSRO) for secure, scalable distribution of public and private content replicated using untrusted servers.<\/p>\n<p>SFSRO provides authenticity of single-writer, many-reader content. A publisher creates a digitally-signed database out of the contents of a source file system. Untrusted servers replicate the content, accessed by readers through a file system interface. A reader accepts only verified, authentic content \u2014 eliminating the need to trust the distribution infrastructure.<\/p>\n<p>To control access to private content, a publisher encrypts content for confidentiality. This talk introduces lazy revocation and key regression to cope with the cost of distributing keys to readers. These techniques allow a publisher on a low-bandwidth connection to support many readers accessing private content.<\/p>\n<\/div>\n<p><!-- .asset-content --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A publisher can make content available to many readers through replication on remote, untrusted computers. Yet a reader should have confidence that content is authentic, and publishers should be able to control access to content. This talk presents the design and implementation of the SFS read-only file system (SFSRO) for secure, scalable distribution of public [&hellip;]<\/p>\n","protected":false},"featured_media":290498,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr_hide_image_in_river":0,"footnotes":""},"research-area":[],"msr-video-type":[],"msr-locale":[268875],"msr-post-option":[],"msr-session-type":[],"msr-impact-theme":[],"msr-pillar":[],"msr-episode":[],"msr-research-theme":[],"class_list":["post-184199","msr-video","type-msr-video","status-publish","has-post-thumbnail","hentry","msr-locale-en_us"],"msr_download_urls":"","msr_external_url":"https:\/\/youtu.be\/U880_Zm3UjQ","msr_secondary_video_url":"","msr_video_file":"","_links":{"self":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video\/184199","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video"}],"about":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/types\/msr-video"}],"version-history":[{"count":1,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video\/184199\/revisions"}],"predecessor-version":[{"id":418307,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video\/184199\/revisions\/418307"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/media\/290498"}],"wp:attachment":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/media?parent=184199"}],"wp:term":[{"taxonomy":"msr-research-area","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/research-area?post=184199"},{"taxonomy":"msr-video-type","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-video-type?post=184199"},{"taxonomy":"msr-locale","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-locale?post=184199"},{"taxonomy":"msr-post-option","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-post-option?post=184199"},{"taxonomy":"msr-session-type","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-session-type?post=184199"},{"taxonomy":"msr-impact-theme","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-impact-theme?post=184199"},{"taxonomy":"msr-pillar","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-pillar?post=184199"},{"taxonomy":"msr-episode","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-episode?post=184199"},{"taxonomy":"msr-research-theme","embeddable":true,"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-research-theme?post=184199"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}