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id : 679
type : Seminar
dateandtime : 2015-05-15 14:00:00
duration : 60 min.
Recommended duration for PhD thesis is 90 minutes, for other seminar types, it is 60 minutes. The duration specified here is used to reserve the room.
place : BMB4
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departmental : yes
title : Single Password Authentication
author : Dr. Alptekin Küpçü
supervisors :
Supervisors field is applicable especially for a Thesis Defense
company : Koç University
country : Turkey
abstract : Security of our passwords is an everyday and very pressing problem.
Users frequently reuse their passwords when authenticating to various
online services. Combined with the use of weak passwords or
honeypot/phishing attacks, this brings high risks to the security of
the user's account information.
We invented a mechanism such that a user may employ a single simple
password to login to all websites securely, with proven security
against dictionary attacks, phishing, honeypots, or in many cases,
even malware. Our system is easy to deploy, especially if some single
sign-on services such as Google Accounts, Facebook, Microsoft
Passport, Yahoo employ this system. This is the first and only system
of its kind, provably providing such strong security guarantees.
biography : Alptekin Küpçü received his Ph.D. degree from Brown University
Computer Science Department in 2010. Since then, he has been working
as an assistant professor at Koç University, and leading the
Cryptography, Security & Privacy Research Group he has founded. His
research mainly focuses on applied cryptography, and its intersection
with cloud security, privacy, peer-to-peer networks, and game theory
and mechanism design. He has also led the development of the Brownie
Cashlib cryptographic library, which is available as open source
online. Dr. Küpçü has various accomplishments including 2 patents
pending, 7 funded research projects (for 5 of which he was the
principal investigator), 2 European Union COST Action management
committee memberships, Koç University Teaching Innovation Grant, and
the Royal Society Newton Advanced Fellowship. For more information,
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COW by: Ahmet Sacan