{"id":1680,"date":"2005-12-19T16:23:57","date_gmt":"2005-12-19T20:23:57","guid":{"rendered":"https:\/\/www.bu.edu\/riscs\/?p=1680"},"modified":"2017-04-07T12:51:53","modified_gmt":"2017-04-07T16:51:53","slug":"authentication-without-identification-from-theory-to-practice","status":"publish","type":"post","link":"https:\/\/www.bu.edu\/riscs\/2005\/12\/19\/authentication-without-identification-from-theory-to-practice\/","title":{"rendered":"Authentication without Identification: from Theory to Practice"},"content":{"rendered":"<p><a href=\"http:\/\/cs.brown.edu\/~anna\/\" target=\"_blank\">Anna Lysyanskaya<\/a>, Informations Systems Dept., SMG, Boston University<br \/>\nMonday, December 19, 3:10 PM,\u00a0<a href=\"https:\/\/www.google.com\/maps\/search\/111+Cummington+Street,+boston,+ma,+room+135\/data=!4m2!2m1!4b1?hl=en&#038;dg=dbrw&#038;newdg=1\">MCS 135<\/a><\/p>\n<p><!--more View Details >--><\/p>\n<p>Suppose that we have a valuable on-line resource (for example, an on-line\u00a0library), and a whole bunch of people authorized to access various sections of\u00a0this resource (for example, some people have subscribed to the fiction section\u00a0of the library, while others have subscribed to the biography section.) How\u00a0does the resource verify that a given user is authorized to access the\u00a0requested section?<\/p>\n<p>One approach to resolving this issue is to first find out who the user is, and\u00a0then check which sections this user is authorized to access. Some users, in\u00a0the context of certain types of resources, may find this unacceptable from the\u00a0privacy point of view: they may not feel comfortable communicating who they are\u00a0every time that they need to access an on-line resource!<\/p>\n<p>Another approach would be to verify that the user has the appropriate\u00a0credentials for accessing the resource in such a way that no other information\u00a0about this user is revealed. The fact that this is at all possible may sound\u00a0paradoxical. In this talk, I will explain (some of) the theory of\u00a0zero-knowledge proof systems that makes this possible in principle. I will\u00a0then describe my work on developing highly practical methods for authentication\u00a0without identification.<\/p>\n<p>This talk will be based on joint work with Jan Camenisch.<\/p>\n<p>Bio:<\/p>\n<p>Anna Lysyanskaya is an Assistant Professor of Computer Science at Brown<br \/>\nUniversity. She received an A.B. in Computer Science and Mathematics from Smith<br \/>\nCollege in 1997, and a Ph.D. in Computer Science and Electrical Engineering<br \/>\nfrom MIT in 2002. She is a recipient of the NSF CAREER award. Her research<br \/>\ninterests are in cryptography, theoretical computer science, and computer<br \/>\nsecurity.<\/p>\n<p>Host:\u00a0<a href=\"http:\/\/www.cs.bu.edu\/~reyzin\/\">Leo Reyzin<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Anna Lysyanskaya, Informations Systems Dept., SMG, Boston University Monday, December 19, 3:10 PM,\u00a0MCS 135<\/p>\n","protected":false},"author":1401,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[3897],"tags":[],"_links":{"self":[{"href":"https:\/\/www.bu.edu\/riscs\/wp-json\/wp\/v2\/posts\/1680"}],"collection":[{"href":"https:\/\/www.bu.edu\/riscs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bu.edu\/riscs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bu.edu\/riscs\/wp-json\/wp\/v2\/users\/1401"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bu.edu\/riscs\/wp-json\/wp\/v2\/comments?post=1680"}],"version-history":[{"count":6,"href":"https:\/\/www.bu.edu\/riscs\/wp-json\/wp\/v2\/posts\/1680\/revisions"}],"predecessor-version":[{"id":2285,"href":"https:\/\/www.bu.edu\/riscs\/wp-json\/wp\/v2\/posts\/1680\/revisions\/2285"}],"wp:attachment":[{"href":"https:\/\/www.bu.edu\/riscs\/wp-json\/wp\/v2\/media?parent=1680"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bu.edu\/riscs\/wp-json\/wp\/v2\/categories?post=1680"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bu.edu\/riscs\/wp-json\/wp\/v2\/tags?post=1680"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}