{"id":168001,"date":"2015-02-27T00:00:00","date_gmt":"2015-02-27T00:00:00","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/research\/msr-research-item\/antp-authenticated-ntp-implementation-specification\/"},"modified":"2018-10-16T21:33:26","modified_gmt":"2018-10-17T04:33:26","slug":"antp-authenticated-ntp-implementation-specification","status":"publish","type":"msr-research-item","link":"https:\/\/www.microsoft.com\/en-us\/research\/publication\/antp-authenticated-ntp-implementation-specification\/","title":{"rendered":"ANTP: Authenticated NTP Implementation Specification"},"content":{"rendered":"<div class=\"asset-content\">\n<p>This document describes ANTP, an authentication protocol designed to be built over the Network Time Protocol operating in client\/server mode. ANTP&#8217;s design meets the requirements of NTP and the Security Requirements of Time Protocols in Packet-Switched Networks, a TICTOC Working Draft. In particular, the server does not need to keep per-client state, and the authentication steps does not degrade timestamp accuracy when compared to unauthenticated NTP. This specification is meant to accompany a paper describing ANTP and analyzing its security (&#8220;Authenticated Network Time Synchronization&#8221; by Dowling, Stebila and Zaverucha).<\/p>\n<\/div>\n<p><!-- .asset-content --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This document describes ANTP, an authentication protocol designed to be built over the Network Time Protocol operating in client\/server mode. ANTP&#8217;s design meets the requirements of NTP and the Security Requirements of Time Protocols in Packet-Switched Networks, a TICTOC Working Draft. In particular, the server does not need to keep per-client state, and the authentication [&hellip;]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","footnotes":""},"msr-content-type":[3],"msr-research-highlight":[],"research-area":[13558],"msr-publication-type":[193718],"msr-product-type":[],"msr-focus-area":[],"msr-platform":[],"msr-download-source":[],"msr-locale":[268875],"msr-post-option":[],"msr-field-of-study":[],"msr-conference":[],"msr-journal":[],"msr-impact-theme":[],"msr-pillar":[],"class_list":["post-168001","msr-research-item","type-msr-research-item","status-publish","hentry","msr-research-area-security-privacy-cryptography","msr-locale-en_us"],"msr_publishername":"Microsoft 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