Conference Publications

2018

Pyrros Chaidos, Olga Fourtounelli, Aggelos Kiayias, Thomas Zacharias “A Universally Composable Framework for the Privacy of Email Ecosystems” ASIACRYPT 2018.
Aggelos Kiayias, Annabell Kuldmaa, Helger Lipmaa, Janno Siim, and Thomas Zacharias “On the Security Properties of e-Voting Bulletin Boards” SCN, 2018.
Benjamin Weggenmann, Florian Kerschbaum. “SynTF: Synthetic and Differentially Private Term Frequency Vectors for Privacy-Preserving Text Mining” SIGIR, 2018.
Rafael Gálvez, Seda Gurses “The Odyssey: modeling privacy threats in a brave new world” EuroS&PW, 2018.
Seda Gurses, Rebekah Overdorf, and Ero Balsa, “POTs: The revolution will not be optimized?,” HotPETs, 2018.
Bernardo David, Peter Gazi, Aggelos Kiayias, Alexander Russell “Ouroboros Praos: An Adaptively-Secure, Semi-synchronous Proof-of-Stake Blockchain” EUROCRYPT 2018.
Juan A. Garay, Aggelos Kiayias, Nikos Leonardos, Giorgos Panagiotakos “Bootstrapping the Blockchain, with Applications to Consensus and Fast PKI Setup” PKC 2018.
Debajyoti Das, Sebastian Meiser, Esfandiar Mohammadi and Aniket Kate “Anonymity Trilemma: Strong Anonymity, Low Bandwidth Overhead, Low Latency—Choose Two” IEEE Symposium on Security and Privacy (SP) 2018.
Vera Rimmer, Davy Preuveneers, Marc Juarez, Tom Van Goethem and Wouter Joosen “Automated Feature Extraction for Website Fingerprinting through Deep Learning” NDSS 2018.
Rob Jansen, Marc Juarez, Rafael Gálvez, Tariq Elahi and Claudia Diaz “Inside Job: Applying Traffic Analysis to Measure Tor from Within” NDSS 2018.

2017

Behzad Abdolmaleki, Karim Baghery, Helger Lipmaa, Michał Zając “A Subversion-Resistant SNARK“ ASIACRYPT 2017.
Prastudy Fauzi, Helger Lipmaa, Janno Siim, Michał Zając “An Efficient Pairing-Based Shuffle Argument” ASIACRYPT 2017.
Rebekah Overdorf , Marc Juarez, Gunes Acar, Rachel Greenstadt and Claudia Diaz “How Unique is Your .onion? An Analysis of the Fingerprintability of Tor Onion Services” CCS 2017: 2021-2036.
Vasilios Mavroudis, Michael Veale “Eavesdropping Whilst You’re Shopping: Balancing Personalisation and Privacy in Connected Retail Spaces” Proceedings of Living in the Internet of Things: Cybersecurity of the IoT – 2018.
Vasilios Mavroudis, Andrea Cerulli, Petr Svenda, Dan Cvrcek, Dusan Klinec, George Danezis “A Touch of Evil: High-Assurance Cryptographic Hardware from Untrusted Components” CCS 2017: 1583-1600
Raphael R. Toledo, George Danezis, Isao Echizen “Mix-ORAM: Using delegate shuffles” WPES 2017.
Ania Piotrowska, Jamie Hayes, Nethanel Gelernter, George Danezis and Amir Herzberg “AnNotify: A Private Notification Service” WPES 2017.
Juan Garay, Aggelos Kiayias, Nikos Leonardos “The Bitcoin Backbone Protocol with Chains of Variable Difficulty” Crypto 2017.
Aggelos Kiayias, Alexander Russell, Bernardo David, Roman Oliynykov “Ouroboros: A Provably Secure Proof-of-Stake Blockchain Protocol.” Crypto 2017.
Nikolaos Alexopoulos, Aggelos Kiayias, Riivo Talviste, Thomas Zacharias “MCMix: Anonymous Messaging via Secure Multiparty Computation.” USENIX Security Symposium 2017.
Ania Piotrowska, Jamie Hayes, Tariq Elahi, Sebastian Meiser, George Danezis “The Loopix Anonymity System.” USENIX Security Symposium 2017.
Jonas Böhler, Daniel Bernau, and Florian Kerschbaum. “Privacy-preserving outlier detection for data streams“. 31st Annual IFIP WG 11.3 Conference on Data and Applications Security and Privacy (DBSec’17) 2017.
Helger Lipmaa and Kateryna Pavly. “A Simpler Rate-Optimal CPIR Protocol.” 21st International Conference on Financial Cryptography and Data Security 2017.
Helger Lipmaa. “Optimally Sound Sigma Protocols Under DCRA.” 21st International Conference on Financial Cryptography and Data Security 2017.
Aggelos Kiayias, Thomas Zacharias, Bingsheng Zhang: “Ceremonies for End-to-End Verifiable Elections.” Public-Key Cryptography – PKC 2017.
Florian Bourse, Fabrice Benhamouda and Helger Lipmaa. “CCA-Secure Inner-Product Functional Encryption from Projective Hash Functions.” Public-Key Cryptography – PKC 2017.

2016

Prastudy Fauzi, Helger Lipmaa and Michał Zając. “A Shuffle Argument Secure in the Generic Model.” ASIACRYPT 2016.

Foteini Baldimtsi, Aggelos Kiayias, Thomas Zacharias and Bingsheng Zhang. “Indistinguishable Proofs of Work or Knowledge.” ASIACRYPT 2016.
Aggelos Kiayias, Feng-Hao Liu, Yiannis Tselekounis. “Practical Non-Malleable Codes from l-more Extractable Hash Functions.” CCS ’16 Proceedings of the 2016 ACM SIGSAC Conference on Computer and Communications Security.
George Argyros, Ioannis Stais, Suman Jana, Angelos D. Keromytis, Aggelos Kiayias. “SFADiff: Automated Evasion Attacks and Fingerprinting Using Black-box Differential Automata Learning.” CCS ’16 Proceedings of the 2016 ACM SIGSAC Conference on Computer and Communications Security.
Aggelos Kiayias, Ozgur Oksuz, Alexander Russell, Qiang Tang, Bing Wang. “Efficient Encrypted Keyword Search for Multi-user Data Sharing.” Computer Security – ESORICS 2016.
Marc Juarez, Mohsen Imani, Mike Perry, Claudia Diaz, Matthew Wright. “Toward an Efficient Website Fingerprinting Defense.” Computer Security – ESORICS 2016.
Jamie Hayes, George Danezis. “k-fingerprinting: A Robust Scalable Website Fingerprinting Technique.” USENIX Security Symposium 2016.
Aggelos Kiayias, Elias Koutsoupias, Maria Kyropoulou, and Yiannis Tselekounis. “Blockchain Mining Games.” ACM Conference on Economics and Computation 2016.
Rafael Gálvez, Marc Juarez, and Claudia Diaz. “Profiling Tor Users with Unsupervised Learning Techniques.” Infer 2016.
Helger Lipmaa. “Prover-Efficient Commit-And-Prove Zero-Knowledge SNARKs.” AFRICACRYPT 2016.
Stanislaw Jarecki, Aggelos Kiayias, Hugo Krawczyk, Jiayu Xu. “Highly-Efficient and Composable Password-Protected Secret Sharing (Or: How to Protect Your Bitcoin Wallet Online).” IEEE EURO S&P 2016.
Prastudy Fauzi and Helger Lipmaa. “Efficient Culpably Sound NIZK Shuffle Argument without Random Oracles.” CT-RSA 2016, San Franscisco, CA, USA 2016.
Luca Melis, George Danezis, Emiliano De Cristofaro. “Efficient Private Statistics with Succinct Sketches.” NDSS 2016.
George Danezis, Sarah Meiklejohn. “Centrally Banked Cryptocurrencies.” NDSS 2016.
Harry Halpin, Patrick J. Hayes, and Henry S. Thompson. “When owl:sameAs isn’t the Same Redux: Towards a Theory of Identity, Context, and Inference on the Semantic Web.” Modeling and Using Context: 9th International and Interdisciplinary Conference, CONTEXT 2015.
Fatemeh Shirazi, Milivoj Simeonovski, Muhammad Rizwan Asghar, Michael Backes, Claudia Díaz. “A Survey on Routing in Anonymous Communication Protocols“.

2015

Chen Chen, Daniele Enrico Asoni, David Barrera, George Danezis, Adrian Perrig. “HORNET: High-speed Onion Routing at the Network Layer.” ACM CCS 2015, Denver 2015.

2018

Pyrros Chaidos, Olga Fourtounelli, Aggelos Kiayias, Thomas Zacharias “A Universally Composable Framework for the Privacy of Email Ecosystems” ASIACRYPT 2018.

Aggelos Kiayias, Annabell Kuldmaa, Helger Lipmaa, Janno Siim, and Thomas Zacharias “On the Security Properties of e-Voting Bulletin Boards” SCN, 2018.

Benjamin Weggenmann, Florian Kerschbaum. “SynTF: Synthetic and Differentially Private Term Frequency Vectors for Privacy-Preserving Text Mining” SIGIR, 2018.

Rafael Gálvez, Seda Gurses “The Odyssey: modeling privacy threats in a brave new world” EuroS&PW, 2018.

Seda Gurses, Rebekah Overdorf, and Ero Balsa, “POTs: The revolution will not be optimized?,” HotPETs, 2018.

Bernardo David, Peter Gazi, Aggelos Kiayias, Alexander Russell “Ouroboros Praos: An Adaptively-Secure, Semi-synchronous Proof-of-Stake Blockchain” EUROCRYPT 2018.

Juan A. Garay, Aggelos Kiayias, Nikos Leonardos, Giorgos Panagiotakos “Bootstrapping the Blockchain, with Applications to Consensus and Fast PKI Setup” PKC 2018.

Debajyoti Das, Sebastian Meiser, Esfandiar Mohammadi and Aniket Kate “Anonymity Trilemma: Strong Anonymity, Low Bandwidth Overhead, Low Latency—Choose Two” IEEE Symposium on Security and Privacy (SP) 2018.

Vera Rimmer, Davy Preuveneers, Marc Juarez, Tom Van Goethem and Wouter Joosen “Automated Feature Extraction for Website Fingerprinting through Deep Learning” NDSS 2018.

Rob Jansen, Marc Juarez, Rafael Gálvez, Tariq Elahi and Claudia Diaz “Inside Job: Applying Traffic Analysis to Measure Tor from Within” NDSS 2018.

2017

Behzad Abdolmaleki, Karim Baghery, Helger Lipmaa, Michał Zając “A Subversion-Resistant SNARK“ ASIACRYPT 2017.

Prastudy Fauzi, Helger Lipmaa, Janno Siim, Michał Zając “An Efficient Pairing-Based Shuffle Argument” ASIACRYPT 2017.

Rebekah Overdorf , Marc Juarez, Gunes Acar, Rachel Greenstadt and Claudia Diaz “How Unique is Your .onion? An Analysis of the Fingerprintability of Tor Onion Services” CCS 2017: 2021-2036.

Vasilios Mavroudis, Michael Veale “Eavesdropping Whilst You’re Shopping: Balancing Personalisation and Privacy in Connected Retail Spaces” Proceedings of Living in the Internet of Things: Cybersecurity of the IoT – 2018.

Vasilios Mavroudis, Andrea Cerulli, Petr Svenda, Dan Cvrcek, Dusan Klinec, George Danezis “A Touch of Evil: High-Assurance Cryptographic Hardware from Untrusted Components” CCS 2017: 1583-1600

Raphael R. Toledo, George Danezis, Isao Echizen “Mix-ORAM: Using delegate shuffles” WPES 2017.

Ania Piotrowska, Jamie Hayes, Nethanel Gelernter, George Danezis and Amir Herzberg “AnNotify: A Private Notification Service” WPES 2017.

Juan Garay, Aggelos Kiayias, Nikos Leonardos “The Bitcoin Backbone Protocol with Chains of Variable Difficulty” Crypto 2017.

Aggelos Kiayias, Alexander Russell, Bernardo David, Roman Oliynykov “Ouroboros: A Provably Secure Proof-of-Stake Blockchain Protocol.” Crypto 2017.

Nikolaos Alexopoulos, Aggelos Kiayias, Riivo Talviste, Thomas Zacharias “MCMix: Anonymous Messaging via Secure Multiparty Computation.” USENIX Security Symposium 2017.

Ania Piotrowska, Jamie Hayes, Tariq Elahi, Sebastian Meiser, George Danezis “The Loopix Anonymity System.” USENIX Security Symposium 2017.

Jonas Böhler, Daniel Bernau, and Florian Kerschbaum. “Privacy-preserving outlier detection for data streams“. 31st Annual IFIP WG 11.3 Conference on Data and Applications Security and Privacy (DBSec’17) 2017.

Helger Lipmaa and Kateryna Pavly. “A Simpler Rate-Optimal CPIR Protocol.” 21st International Conference on Financial Cryptography and Data Security 2017.

Helger Lipmaa. “Optimally Sound Sigma Protocols Under DCRA.” 21st International Conference on Financial Cryptography and Data Security 2017.

Aggelos Kiayias, Thomas Zacharias, Bingsheng Zhang: “Ceremonies for End-to-End Verifiable Elections.” Public-Key Cryptography – PKC 2017.

Florian Bourse, Fabrice Benhamouda and Helger Lipmaa. “CCA-Secure Inner-Product Functional Encryption from Projective Hash Functions.” Public-Key Cryptography – PKC 2017.

2016

Prastudy Fauzi, Helger Lipmaa and Michał Zając. “A Shuffle Argument Secure in the Generic Model.” ASIACRYPT 2016.

Foteini Baldimtsi, Aggelos Kiayias, Thomas Zacharias and Bingsheng Zhang. “Indistinguishable Proofs of Work or Knowledge.” ASIACRYPT 2016.

Aggelos Kiayias, Feng-Hao Liu, Yiannis Tselekounis. “Practical Non-Malleable Codes from l-more Extractable Hash Functions.” CCS ’16 Proceedings of the 2016 ACM SIGSAC Conference on Computer and Communications Security.

George Argyros, Ioannis Stais, Suman Jana, Angelos D. Keromytis, Aggelos Kiayias. “SFADiff: Automated Evasion Attacks and Fingerprinting Using Black-box Differential Automata Learning.” CCS ’16 Proceedings of the 2016 ACM SIGSAC Conference on Computer and Communications Security.

Aggelos Kiayias, Ozgur Oksuz, Alexander Russell, Qiang Tang, Bing Wang. “Efficient Encrypted Keyword Search for Multi-user Data Sharing.” Computer Security – ESORICS 2016.

Marc Juarez, Mohsen Imani, Mike Perry, Claudia Diaz, Matthew Wright. “Toward an Efficient Website Fingerprinting Defense.” Computer Security – ESORICS 2016.

Jamie Hayes, George Danezis. “k-fingerprinting: A Robust Scalable Website Fingerprinting Technique.” USENIX Security Symposium 2016.

Aggelos Kiayias, Elias Koutsoupias, Maria Kyropoulou, and Yiannis Tselekounis. “Blockchain Mining Games.” ACM Conference on Economics and Computation 2016.

Rafael Gálvez, Marc Juarez, and Claudia Diaz. “Profiling Tor Users with Unsupervised Learning Techniques.” Infer 2016.

Helger Lipmaa. “Prover-Efficient Commit-And-Prove Zero-Knowledge SNARKs.” AFRICACRYPT 2016.

Stanislaw Jarecki, Aggelos Kiayias, Hugo Krawczyk, Jiayu Xu. “Highly-Efficient and Composable Password-Protected Secret Sharing (Or: How to Protect Your Bitcoin Wallet Online).” IEEE EURO S&P 2016.

Prastudy Fauzi and Helger Lipmaa. “Efficient Culpably Sound NIZK Shuffle Argument without Random Oracles.” CT-RSA 2016, San Franscisco, CA, USA 2016.

Luca Melis, George Danezis, Emiliano De Cristofaro. “Efficient Private Statistics with Succinct Sketches.” NDSS 2016.

George Danezis, Sarah Meiklejohn. “Centrally Banked Cryptocurrencies.” NDSS 2016.

Harry Halpin, Patrick J. Hayes, and Henry S. Thompson. “When owl:sameAs isn’t the Same Redux: Towards a Theory of Identity, Context, and Inference on the Semantic Web.” Modeling and Using Context: 9th International and Interdisciplinary Conference, CONTEXT 2015.

Fatemeh Shirazi, Milivoj Simeonovski, Muhammad Rizwan Asghar, Michael Backes, Claudia Díaz. “A Survey on Routing in Anonymous Communication Protocols“.

2015

Chen Chen, Daniele Enrico Asoni, David Barrera, George Danezis, Adrian Perrig. “HORNET: High-speed Onion Routing at the Network Layer.” ACM CCS 2015, Denver 2015.