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UID:www.tcs.tifr.res.in/event/638
DTSTAMP:20230914T125932Z
SUMMARY:Secret Key Agreement: General Capacity and Second-Order Asymptotics
DESCRIPTION:Speaker: Shun Watanabe (Tokyo University of Agriculture and Tec
 hnology\nDepartment of Computer and\nInformation Sciences\n4-8-1 Harumicho
 \nFuchu\, Tokyo 183-0057\nJapan\n )\n\nAbstract: \nAbstract: We revisit t
 he problem of secret key agreement using interactive public communication 
 for two parties and propose a new secret key agreement protocol. The proto
 col attains the secret key capacity for general observations and attains t
 he second-order asymptotic term in the maximum length of a secret key for 
 independent and identically distributed observations. In contrast to the p
 reviously suggested secret key agreement protocols\, the proposed protocol
  uses interactive communication. In fact\, the standard one-way communicat
 ion protocol used prior to this work fails to attain the asymptotic result
 s above. Our converse proofs rely on a recently established upper bound fo
 r secret key lengths. Both our lower and upper bounds are derived in a sin
 gle-shot setup and the asymptotic results are obtained as corollaries (it 
 is a joint work with M. Hayashi and H. Tyagi (arXiv:1411.0735).\n\nBio: Sh
 un Watanabe received B.E.\, M.E.\, and Ph.D. degree from Tokyo Institute o
 f Technology in 2005\, 2007\, and 2009\, respectively. During April 2009 t
 o February 2015\, he was an assistant professor of the Department of Infor
 mation Science and Intelligence Systems at the University of Tokushima.  
 During April 2013 to March 2015\, he was a visiting assistant professor of
  the Institute for Systems Research at the University of Maryland\, Colleg
 e Park. Since February 2015\, he has been a tenure track associate profess
 or of the Department of Computer and Information Sciences at Tokyo Univers
 ity of Agriculture and Technology.\n \n
URL:https://www.tcs.tifr.res.in/web/events/638
DTSTART;TZID=Asia/Kolkata:20151204T110000
DTEND;TZID=Asia/Kolkata:20151204T120000
LOCATION:A-212 (STCS Seminar Room)
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