Browsing Τμήμα Πληροφορικής / Department of Computer Science by Author "Papadopoulos, Panagiotis"
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Where's Wally? How to Privately Discover your Friends on the Internet
Papadopoulos, Panagiotis; Chariton, Antonios A.; Athanasopoulos, Elias; Markatos, Evangelos P. (Association for Computing Machinery, 2018)Internet friends who would like to connect with each other (e.g., VoIP, chat) use point-to-point communication applications such as Skype or WhatsApp. Apart from providing the necessary communication channel, these ...
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Øpass: Zero-storage Password Management Based on Password Reminders
Tzagarakis, Giannis; Papadopoulos, Panagiotis; Chariton, Antonios A.; Athanasopoulos, Elias; Markatos, Evangelos P. (Association for Computing Machinery, 2018)A plethora of Internet services and applications require user authentication. Although many alternatives have been proposed, and despite the significant advancement in attackers' capabilities to perform password cracking, ...