I am a graduate researcher at EPFL working on Decentralized Systems, Applied Cryptography and Distributed Computing.
I received my MEng in Electrical and Computer Engineering from the National Technical University of Athens and worked as an undergraduate researcher at the Distributed Knowledge and Media Systems Group.
I am a member of the Initiative for Cryptocurrencies and Contracts (IC3) and an IBM PhD Fellow
I am interested in increasing the digital trust of online information and processes, especially those that impact the physical world.
I am working on building a scalable and robust infrastructure for the future decentralised internet focusing on scalable blockchain systems, bias-resistant decentralised randomness generation, secure software update dispersion and novel applications of threshold cryptography and distributed consensus.
“ Rethinking General-Purpose Decentralized Computing”
in the 17th Wokrshop on Hot Topics in Operating Systems, HotOS 2019
“Channels: Horizontal Scaling and Confidentiality on Permissioned Blockchains”
in the 23rd European Symposium on Research in Computer Security, ESORICS 2018
★ Deployed in Hyperledger Fabric
“Omniledger: A secure, scale-out, decentralized ledger via sharding”
in the 39th IEEE Symposium on Security and Privacy, Oakland' 2018
★ Part of Harmony Blockchain
“CHAINIAC: Proactive Software-Update Transparency via Collectively Signed Skipchains and Verified Builds”
in the 26th USENIX Security Symposium, Security' 2017
★ EPFL E-Voting uses Skipchains
“Scalable bias-resistant distributed randomness”
in the 38th IEEE Symposium on Security and Privacy, Oakland' 2017
★ Part of IOST
“Proof-of-Personhood: Redemocratizing Permissionless Cryptocurrencies”
in the 2017 IEEE European Symposium on Security and Privacy Workshops, EuroS&PW 2017
★ Stay Tuned!
“TRM-SIoT: A scalable hybrid trust & reputation model for the social internet of things”
in the 21st IEEE Conference on Emerging Technologies and Factory Automation, ETFA 2016
“Enhancing bitcoin security and performance with strong consistency via collective signing”
in the 25th USENIX Security Symposium, Security' 2016
★ Part of Zilliqa Blockchain
“CALYPSO: Auditable Sharing of Private Data over Blockchains”
★ Deployed in ByzGen
“Managing identities using blockchains and CoSi”
- Prelimary Version of Skipchains
Awards and Honors
- EPFL IC School Appreciation for Exceptional Performance 2018
- IBM PhD Fellowship 2018-2020
- EPFL IC School Appreciation for Exceptional Performance 2017
- IBM PhD Fellowship 2017-2018
- EDIC PhD Fellowship EPFL 2015
- Thomaidion Award for Academic Excellence 2016 NTUA
- Programming competitions:
- 2nd Place in Greece IEEE Xtreme 7.0