{"id":165095,"date":"2013-06-01T00:00:00","date_gmt":"2013-06-01T00:00:00","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/research\/msr-research-item\/improving-trusted-tickets-with-state-bound-keys\/"},"modified":"2018-10-16T21:53:27","modified_gmt":"2018-10-17T04:53:27","slug":"improving-trusted-tickets-with-state-bound-keys","status":"publish","type":"msr-research-item","link":"https:\/\/www.microsoft.com\/en-us\/research\/publication\/improving-trusted-tickets-with-state-bound-keys\/","title":{"rendered":"Improving Trusted Tickets with State-Bound Keys"},"content":{"rendered":"<div class=\"asset-content\">\n<p>Traditional network authentication systems like Windows\u2019 Active Directory or MIT\u2019s Kerberos only provide for mutual authentication of communicating entities, e.g. a user\u2019s email client interacting with an IMAP server, while the user\u2019s machine is inherently assumed to be trusted. While there have been first attempts to explicitly establish this trust relationship by leveraging the Trusted Platform Module, these provide no means to directly react to potentially relevant changes in the client\u2019s system state. We expand previous designs by binding keys to the current platform state and involving these in the network authentication process, thereby guaranteeing the continued validity of the attestee.<\/p>\n<\/div>\n<p><!-- .asset-content --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Traditional network authentication systems like Windows\u2019 Active Directory or MIT\u2019s Kerberos only provide for mutual authentication of communicating entities, e.g. a user\u2019s email client interacting with an IMAP server, while the user\u2019s machine is inherently assumed to be trusted. While there have been first attempts to explicitly establish this trust relationship by leveraging the Trusted [&hellip;]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"footnotes":""},"msr-content-type":[3],"msr-research-highlight":[],"research-area":[13547],"msr-publication-type":[193721],"msr-product-type":[],"msr-focus-area":[],"msr-platform":[],"msr-download-source":[],"msr-locale":[268875],"msr-field-of-study":[],"msr-conference":[],"msr-journal":[],"msr-impact-theme":[],"msr-pillar":[],"class_list":["post-165095","msr-research-item","type-msr-research-item","status-publish","hentry","msr-research-area-systems-and-networking","msr-locale-en_us"],"msr_publishername":"Springer","msr_edition":"Trust and Trustworthy 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