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Prof Alexander Russell

Senior Research Fellow

Academic Research

USA

The Generals’ Scuttlebutt: Byzantine-Resilient Gossip Protocols

Sandro Coretti-Drayton,Prof Aggelos Kiayias,Cristopher Moore,Prof Alexander Russell

November 2022, ACM CCS '22

UNIVERSAL COMPOSITION

Practical Settlement Bounds for Proof-of-Work Blockchains

Peter Gaži,Ling Ren,Prof Alexander Russell

November 2022, ACM CCS '22

PROOF-OF-WORK

On UC-Secure Range Extension and Batch Verification for ECVRF

Christian Badertscher,Peter Gaži,Iñigo Querejeta Azurmendi,Prof Alexander Russell

September 2022, ESORICS '22

Ofelimos: Combinatorial Optimization via Proof-of-Useful-Work: A Provably Secure Blockchain Protocol

Matthias Fitzi,Prof Aggelos Kiayias,Giorgos Panagiotakos,Prof Alexander Russell

August 2022, Crypto '22

Efficient Random Beacons with Adaptive Security for Ungrindable Blockchains

Prof Aggelos Kiayias,Cristopher Moore,Saad Quader,Prof Alexander Russell

December 2021, ePrint Archive

PSEUDORANDOMNESS

Ouroboros Chronos: Permissionless Clock Synchronization via Proof-of-Stake

Christian Badertscher,Peter Gaži,Prof Aggelos Kiayias,Prof Alexander Russell,Vassilis Zikas

October 2021, Eurocrypt '21

BLOCKCHAIN PROOF-OF-STAKE

Cardano Disaster Recovery Plan

Christian Badertscher,Nicholas Clarke,Jared Corduan,Duncan Coutts,Peter Gaži,Philipp Kant,Prof Aggelos Kiayias,Prof Alexander Russell

May 2021, IOHK

CARDANO

Hydra: Fast Isomorphic State Channels

Manuel Chakravarty,Sandro Coretti-Drayton,Matthias Fitzi,Peter Gaži,Philipp Kant,Prof Aggelos Kiayias,Prof Alexander Russell

March 2021, Financial Cryptography 2021

LAYER-TWO

Tight Consistency Bounds for Bitcoin

Peter Gaži,Prof Aggelos Kiayias,Prof Alexander Russell

November 2020, ACM CCS '20

BITCOIN PROOF-OF-STAKE PROOF-OF-WORK

Ledger Combiners for Fast Settlement

Matthias Fitzi,Peter Gaži,Prof Aggelos Kiayias,Prof Alexander Russell

November 2020, TCC '20

LEDGER

Consistency of Proof-of-Stake Blockchains with Concurrent Honest Slot Leaders

Prof Aggelos Kiayias,Saad Quader,Prof Alexander Russell

November 2020, ICDCS '20

BLOCKCHAIN PROOF-OF-STAKE

Consensus Redux: Distributed Ledgers in the Face of Adversarial Supremacy

Christian Badertscher,Peter Gaži,Prof Aggelos Kiayias,Prof Alexander Russell,Vassilis Zikas

August 2020, ePrint Archive

PROOF-OF-STAKE PROOF-OF-WORK

The Combinatorics of the Longest-Chain Rule: Linear Consistency for Proof-of-Stake Blockchains

Erica Blum,Prof Aggelos Kiayias,Cristopher Moore,Saad Quader,Prof Alexander Russell

January 2020, SODA20

BLOCKCHAIN PROOF-OF-STAKE

Proof-of-Stake Blockchain Protocols with Near-Optimal Throughput

Matthias Fitzi,Peter Gaži,Prof Aggelos Kiayias,Prof Alexander Russell

January 2020, ePrint Archive

PROOF-OF-STAKE

Parallel Chains: Improving Throughput and Latency of Blockchain Protocols via Parallel Composition

Matthias Fitzi,Peter Gaži,Prof Aggelos Kiayias,Prof Alexander Russell

November 2018, EPrint Archive

BLOCKCHAIN DISTRIBUTED PROTOCOL SCALABILITY

Ouroboros-BFT: A Simple Byzantine Fault Tolerant Consensus Protocol

Prof Aggelos Kiayias,Prof Alexander Russell

October 2018, EPrint Archive

BLOCKCHAIN CONSENSUS DISTRIBUTED PROTOCOL

Stake-Bleeding Attacks on Proof-of-Stake Blockchains

Peter Gaži,Prof Aggelos Kiayias,Prof Alexander Russell

June 2018, Crypto Valley'18

ATTACK DISTRIBUTED PROOF-OF-STAKE

Ouroboros Praos: An adaptively-secure, semi-synchronous proof-of-stake protocol

Bernardo David,Peter Gaži,Prof Aggelos Kiayias,Prof Alexander Russell

April 2018, EUROCRYPT 2018

CONSENSUS CRYPTOCURRENCY PROOF-OF-STAKE

Ouroboros: A Provably Secure Proof-of-Stake Blockchain Protocol

Prof Aggelos Kiayias,Prof Alexander Russell,Bernardo David,Prof Roman Oliynykov

August 2017, CRYPTO 2017 (ePrint Archive)

BLOCKCHAIN CRYPTOCURRENCY PROOF-OF-STAKE