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26 Publications
2024 | Published | Conference Paper | IST-REx-ID: 18913 |

An empirical study of consensus protocols’ DoS resilience
G. Giuliari, A. Sonnino, M. Frei, F. Streun, E. Kokoris Kogias, A. Perrig, in:, Proceedings of the 19th ACM Asia Conference on Computer and Communications Security, ACM, 2024, pp. 1345–1360.
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G. Giuliari, A. Sonnino, M. Frei, F. Streun, E. Kokoris Kogias, A. Perrig, in:, Proceedings of the 19th ACM Asia Conference on Computer and Communications Security, ACM, 2024, pp. 1345–1360.
2024 | Published | Conference Paper | IST-REx-ID: 18957 |

Sui Lutris: A blockchain combining broadcast and consensus
S. Blackshear, A. Chursin, G. Danezis, A. Kichidis, E. Kokoris Kogias, X. Li, M. Logan, A. Menon, T. Nowacki, A. Sonnino, B. Williams, L. Zhang, in:, Proceedings of the 2024 on ACM SIGSAC Conference on Computer and Communications Security, ACM, 2024, pp. 2606–2620.
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S. Blackshear, A. Chursin, G. Danezis, A. Kichidis, E. Kokoris Kogias, X. Li, M. Logan, A. Menon, T. Nowacki, A. Sonnino, B. Williams, L. Zhang, in:, Proceedings of the 2024 on ACM SIGSAC Conference on Computer and Communications Security, ACM, 2024, pp. 2606–2620.
2024 | Published | Conference Paper | IST-REx-ID: 18071 |

HammerHead: Leader reputation for dynamic scheduling
G. Tsimos, A. Kichidis, A. Sonnino, E. Kokoris Kogias, in:, Proceedings - International Conference on Distributed Computing Systems, IEEE, 2024, pp. 1377–1387.
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G. Tsimos, A. Kichidis, A. Sonnino, E. Kokoris Kogias, in:, Proceedings - International Conference on Distributed Computing Systems, IEEE, 2024, pp. 1377–1387.
2023 | Published | Journal Article | IST-REx-ID: 13988 |

Practical limitations of Ethereum’s layer-2
R. Neiheiser, G. Inacio, L. Rech, C. Montez, M. Matos, L. Rodrigues, IEEE Access 11 (2023) 8651–8662.
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R. Neiheiser, G. Inacio, L. Rech, C. Montez, M. Matos, L. Rodrigues, IEEE Access 11 (2023) 8651–8662.
2023 | Published | Conference Paper | IST-REx-ID: 14516 |

STROBE: Streaming Threshold Random Beacons
D. Beaver, M. Kelkar, K. Lewi, V. Nikolaenko, A. Sonnino, K. Chalkias, E. Kokoris Kogias, L.D. Naurois, A. Roy, in:, 5th Conference on Advances in Financial Technologies, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2023.
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D. Beaver, M. Kelkar, K. Lewi, V. Nikolaenko, A. Sonnino, K. Chalkias, E. Kokoris Kogias, L.D. Naurois, A. Roy, in:, 5th Conference on Advances in Financial Technologies, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2023.
2023 | Published | Conference Paper | IST-REx-ID: 14609 |

Practical asynchronous high-threshold distributed key generation and distributed polynomial sampling
S. Das, Z. Xiang, E. Kokoris Kogias, L. Ren, in:, 32nd USENIX Security Symposium, Usenix, 2023, pp. 5359–5376.
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S. Das, Z. Xiang, E. Kokoris Kogias, L. Ren, in:, 32nd USENIX Security Symposium, Usenix, 2023, pp. 5359–5376.
2023 | Published | Conference Paper | IST-REx-ID: 14735 |

Executing and proving over dirty ledgers
C. Stefo, Z. Xiang, E. Kokoris Kogias, in:, 27th International Conference on Financial Cryptography and Data Security, Springer Nature, 2023, pp. 3–20.
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C. Stefo, Z. Xiang, E. Kokoris Kogias, in:, 27th International Conference on Financial Cryptography and Data Security, Springer Nature, 2023, pp. 3–20.
2023 | Published | Conference Paper | IST-REx-ID: 14743 |

QuePaxa: Escaping the tyranny of timeouts in consensus
P. Tennage, C. Basescu, E. Kokoris Kogias, E. Syta, P. Jovanovic, V. Estrada-Galinanes, B. Ford, in:, Proceedings of the 29th Symposium on Operating Systems Principles, Association for Computing Machinery, 2023, pp. 281–297.
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P. Tennage, C. Basescu, E. Kokoris Kogias, E. Syta, P. Jovanovic, V. Estrada-Galinanes, B. Ford, in:, Proceedings of the 29th Symposium on Operating Systems Principles, Association for Computing Machinery, 2023, pp. 281–297.
2023 | Published | Conference Paper | IST-REx-ID: 14744
Divide & Scale: Formalization and roadmap to robust sharding
Z. Avarikioti, A. Desjardins, E. Kokoris Kogias, R. Wattenhofer, in:, 30th International Colloquium on Structural Information and Communication Complexity, Springer Nature, 2023, pp. 199–245.
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Z. Avarikioti, A. Desjardins, E. Kokoris Kogias, R. Wattenhofer, in:, 30th International Colloquium on Structural Information and Communication Complexity, Springer Nature, 2023, pp. 199–245.
2023 | Published | Conference Paper | IST-REx-ID: 14829 |

Proof of availability and retrieval in a modular blockchain architecture
S. Cohen, G. Goren, E. Kokoris Kogias, A. Sonnino, A. Spiegelman, in:, 27th International Conference on Financial Cryptography and Data Security, Springer Nature, 2023, pp. 36–53.
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S. Cohen, G. Goren, E. Kokoris Kogias, A. Sonnino, A. Spiegelman, in:, 27th International Conference on Financial Cryptography and Data Security, Springer Nature, 2023, pp. 36–53.
2023 | Published | Conference Paper | IST-REx-ID: 14989 |

Parakeet: Practical key transparency for end-to-end eEncrypted messaging
H. Malvai, E. Kokoris Kogias, A. Sonnino, E. Ghosh, E. Oztürk, K. Lewi, S. Lawlor, in:, Proceedings of the 2023 Network and Distributed System Security Symposium, Internet Society, 2023.
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H. Malvai, E. Kokoris Kogias, A. Sonnino, E. Ghosh, E. Oztürk, K. Lewi, S. Lawlor, in:, Proceedings of the 2023 Network and Distributed System Security Symposium, Internet Society, 2023.
2022 | Published | Conference Paper | IST-REx-ID: 12168 |

Be aware of your leaders
S. Cohen, R. Gelashvili, E. Kokoris Kogias, Z. Li, D. Malkhi, A. Sonnino, A. Spiegelman, in:, International Conference on Financial Cryptography and Data Security, Springer Nature, 2022, pp. 279–295.
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S. Cohen, R. Gelashvili, E. Kokoris Kogias, Z. Li, D. Malkhi, A. Sonnino, A. Spiegelman, in:, International Conference on Financial Cryptography and Data Security, Springer Nature, 2022, pp. 279–295.
2022 | Published | Conference Paper | IST-REx-ID: 11331 |

Narwhal and Tusk: A DAG-based mempool and efficient BFT consensus
G. Danezis, E. Kokoris Kogias, A. Sonnino, A. Spiegelman, in:, Proceedings of the 17th European Conference on Computer Systems, Association for Computing Machinery, 2022, pp. 34–50.
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G. Danezis, E. Kokoris Kogias, A. Sonnino, A. Spiegelman, in:, Proceedings of the 17th European Conference on Computer Systems, Association for Computing Machinery, 2022, pp. 34–50.
2022 | Published | Conference Paper | IST-REx-ID: 12160
Hierarchical consensus: A horizontal scaling framework for blockchains
A. De la Rocha, E. Kokoris Kogias, J.M. Soares, M. Vukolic, in:, 42nd International Conference on Distributed Computing Systems Workshops, Institute of Electrical and Electronics Engineers, 2022, pp. 45–52.
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A. De la Rocha, E. Kokoris Kogias, J.M. Soares, M. Vukolic, in:, 42nd International Conference on Distributed Computing Systems Workshops, Institute of Electrical and Electronics Engineers, 2022, pp. 45–52.
2022 | Published | Conference Paper | IST-REx-ID: 12229 |

Bullshark: DAG BFT protocols made practical
A. Spiegelman, N. Giridharan, A. Sonnino, E. Kokoris Kogias, in:, Proceedings of the 2022 ACM SIGSAC Conference on Computer and Communications Security, Association for Computing Machinery, 2022, pp. 2705–2718.
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A. Spiegelman, N. Giridharan, A. Sonnino, E. Kokoris Kogias, in:, Proceedings of the 2022 ACM SIGSAC Conference on Computer and Communications Security, Association for Computing Machinery, 2022, pp. 2705–2718.
2022 | Published | Conference Paper | IST-REx-ID: 12298 |

Jolteon and ditto: Network-adaptive efficient consensus with asynchronous fallback
R. Gelashvili, E. Kokoris Kogias, A. Sonnino, A. Spiegelman, Z. Xiang, in:, Financial Cryptography and Data Security, Springer Nature, 2022, pp. 296–315.
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R. Gelashvili, E. Kokoris Kogias, A. Sonnino, A. Spiegelman, Z. Xiang, in:, Financial Cryptography and Data Security, Springer Nature, 2022, pp. 296–315.
2022 | Published | Conference Paper | IST-REx-ID: 12300 |

Practical asynchronous distributed key generation
S. Das, T. Yurek, Z. Xiang, A. Miller, E. Kokoris Kogias, L. Ren, in:, 2022 IEEE Symposium on Security and Privacy, Institute of Electrical and Electronics Engineers, 2022, pp. 2518–2534.
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S. Das, T. Yurek, Z. Xiang, A. Miller, E. Kokoris Kogias, L. Ren, in:, 2022 IEEE Symposium on Security and Privacy, Institute of Electrical and Electronics Engineers, 2022, pp. 2518–2534.
2021 | Published | Conference Paper | IST-REx-ID: 10076 |

Reactive key-loss protection in blockchains
S. Blackshear, K. Chalkias, P. Chatzigiannis, R. Faizullabhoy, I. Khaburzaniya, E. Kokoris Kogias, J. Lind, D. Wong, T. Zakian, in:, FC 2021 Workshops, Springer Nature, 2021, pp. 431–450.
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S. Blackshear, K. Chalkias, P. Chatzigiannis, R. Faizullabhoy, I. Khaburzaniya, E. Kokoris Kogias, J. Lind, D. Wong, T. Zakian, in:, FC 2021 Workshops, Springer Nature, 2021, pp. 431–450.
2021 | Published | Conference Paper | IST-REx-ID: 10324 |

Brick: Asynchronous incentive-compatible payment channels
Z. Avarikioti, E. Kokoris Kogias, R. Wattenhofer, D. Zindros, in:, 25th International Conference on Financial Cryptography and Data Security, Springer Nature, 2021, pp. 209–230.
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Z. Avarikioti, E. Kokoris Kogias, R. Wattenhofer, D. Zindros, in:, 25th International Conference on Financial Cryptography and Data Security, Springer Nature, 2021, pp. 209–230.
2021 | Published | Conference Paper | IST-REx-ID: 10325 |

SoK: Communication across distributed ledgers
A. Zamyatin, M. Al-Bassam, D. Zindros, E. Kokoris Kogias, P. Moreno-Sanchez, A. Kiayias, W.J. Knottenbelt, in:, 25th International Conference on Financial Cryptography and Data Security, Springer Nature, 2021, pp. 3–36.
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A. Zamyatin, M. Al-Bassam, D. Zindros, E. Kokoris Kogias, P. Moreno-Sanchez, A. Kiayias, W.J. Knottenbelt, in:, 25th International Conference on Financial Cryptography and Data Security, Springer Nature, 2021, pp. 3–36.