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Algorithms and Security


The primary objective of the group is to bring together expertise in education, research and practice in the field of information security and algorithms. Our group members conduct research in areas spanning from the theoretical foundations of cryptography to the design and implementation of leading edge efficient and secure communication protocols.

The key areas of our technological expertise include Design and development of practical cryptographic mechanisms and protocols that can be employed by resource-limited devices such as sensor nodes and RFIDs.


  • Design of specific middleware security services that can be easily integrated in larger applications of wireless sensor networks. Implementation and deployment of realistic sensor networks with applications in environmental monitoring, health care, energy management of buildings, etc.
  • Design of protocols that focus on providing security and enhancing user privacy in ubiquitous environments that use RFID and other similar technologies. Securing transactions in peer-to-peer networks.
  • Design of security protocols and intrusion detection techniques for Ad-Hoc networks, such as authentication and key agreement protocols based on challenge-response and zero-knowledge techniques.
  • Design of security architectures for wireless and telecommunication networks (UMTS). Smart card security for e-voting and passport control.
  • Design and development low-level cryptographic primitives that can be used in securing the communications in critical applications.
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Students' Views

"As I flashback in memory to this 2004-2005 year, I feel overwhelmed by the rewards and satisfaction from this experience. It is the special and unforgettable friends that I made in Greece, and the professionalism and friendliness of AIT's professors and staff, which gave me the opportunity to get the best boost for my career, and still manage to feel home and enjoy the beauty of Greece.  As a tech-savvy, I applied to AIT to satisfy my zeal about new technologies and I was quite confident that I will get what I want. In AIT, I was very pleased by the faculty, staff and students, because one feels he’s living among his family and friends, especially that the faculty was highly supportive, encouraging me to follow my studies."

Ghassan El Abdallah, MSITT 2005 (Lebanon)

news list News & Announcements

ΑΙΤ participation at the 17th Infocom-Digital Reboot Conference

Dr. Ioannis Tomkos was invited to present a plenary talk at the top Greek business conference on telecoms, the 17th Infocom World Conference, that took place on November 24, 2015 at the Divani Caravel Hotel (

Παρουσιάστηκε το I-Guide στην Ξάνθη

Εντυπωσιακή εφαρμογή – τουριστικός οδηγός για τους επισκέπτες !

EU Horizon2020 Project SANSA 1st Technical Meeting held at AIT

The first technical meeting of the European Commission’s Horizon 2020 Framework Programme’s project SANSA (Shared Access Terrestrial – Satellite Backhaul Network enabled by Smart Antennas) took place on Thursday 23 and Friday 24 July 2015 at AIT’s premises in 44 Kifissias Avenue, Maroussi, Athens, Greece.

Πρόσκληση Για Αίτηση Συμμετοχής στην Πράξη «Συνέργεια για την Απασχόληση στη Δυτική Αθήνα»

Το Athens Information Technology ως ένας από τους φορείς που συμμετέχει στην υλοποίηση της Πράξης «Συνέργεια για την Απασχόληση στη Δυτική Αθήνα», του Α.Σ. «Περιβαλλοντικό Πάρκο Αναπτυξιακή», ανακοινώνει την πρόσκληση για την αίτηση συμμετοχής στο νέο επιδοτούμενο αυτό πρόγραμμα για ανέργους.

Optical networking: The next 10 years

Article by Professor Ioannis Tomkos at Gazettabyte.

Predicting the future is a foolhardy endeavor, at best one can make educated guesses.

Affiliated with Aalborg University-CTiF, Harvard-Kennedy School Of Goverment © ATHENS INFORMATION TECHNOLOGY designed by {Linakis+Associates}