26 citations · 37 across the 11 of their papers we have counts for
13 papers
SoK: Privacy-Preserving Order Matching
Prerna Arote, Adrian Saiz, Lucianna Kiffer
Privacy-preserving order matching enables traders to discover and execute compatible orders while limiting disclosure of sensitive trading information. Existing systems span financ…
Cryptographic Security Is Not Enough: Privacy Gaps in the Renegade Decentralized Dark Pool
Prerna Arote, Adrian Saiz, Oriol Saguillo +1
Dark pools are designed to provide pre-trade privacy, liveness, and post-trade confidentiality - concealing order flow before execution and limiting information leakage after. Dece…
How Bitcoin Forms Its Network: Peer-Table Sampling and Structural Properties
Taki E. M. Abedesselam, Antonio Cruciani, Fabio Giacomelli +2
The global structure of P2P networks underlying modern cryptocurrencies is hidden by design: each node only knows its neighbors and maintains a local \textit{peer table} of IP addr…
Exploiting Multi-Core Parallelism in Blockchain Validation and Construction
Arivarasan Karmegam, Lucianna Kiffer, Antonio Fernández Anta
Blockchain validators can reduce block processing time by exploiting multi-core CPUs, but deterministic execution must preserve a given total order while respecting transaction con…
Multiple Sides of 36 Coins: Measuring Peer-to-Peer Infrastructure Across Cryptocurrencies
Lucianna Kiffer, Lioba Heimbach, Dennis Trautwein +2
Blockchain technologies underpin an expanding ecosystem of decentralized applications, financial systems, and infrastructure. However, the fundamental networking layer that sustain…
Unravelling the Probabilistic Forest: Arbitrage in Prediction Markets
Oriol Saguillo, Vahid Ghafouri, Lucianna Kiffer +1
Polymarket is a prediction market platform where users can speculate on future events by trading shares tied to specific outcomes, known as conditions. Each market is associated wi…
Deanonymizing Ethereum Validators: The P2P Network Has a Privacy Issue
Lioba Heimbach, Yann Vonlanthen, Juan Villacis +2
Many blockchain networks aim to preserve the anonymity of validators in the peer-to-peer (P2P) network, ensuring that no adversary can link a validator's identifier to the IP addre…
Stability of P2P Networks Under Greedy Peering (Full Version)
Lucianna Kiffer, Rajmohan Rajaraman
Major cryptocurrency networks have relied on random peering choice rules for making connections in their peer-to-peer networks. Generally, these choices have good properties, parti…
The PoW Landscape in the Aftermath of The Merge
Lucianna Kiffer, Sophia Skorik, Yann Vonlanthen +1
On 15th September 2022, The Merge marked the Ethereum network's transition from computation-hardness-based consensus (proof-of-work) to a committee-based consensus mechanism (proof…
Ethereum's Proposer-Builder Separation: Promises and Realities
Lioba Heimbach, Lucianna Kiffer, Christof Ferreira Torres +1
With Ethereum's transition from Proof-of-Work to Proof-of-Stake in September 2022 came another paradigm shift, the Proposer-Builder Separation (PBS) scheme. PBS was introduced to d…
Nakamoto Consensus under Bounded Processing Capacity
Lucianna Kiffer, Joachim Neu, Srivatsan Sridhar +2
For Nakamoto's longest-chain consensus protocol, whose proof-of-work (PoW) and proof-of-stake (PoS) variants power major blockchains such as Bitcoin and Cardano, we revisit the cla…
Strategic Latency Reduction in Blockchain Peer-to-Peer Networks
Weizhao Tang, Lucianna Kiffer, Giulia Fanti +1
Most permissionless blockchain networks run on peer-to-peer (P2P) networks, which offer flexibility and decentralization at the expense of performance (e.g., network latency). Hist…
HaPPY-Mine: Designing a Mining Reward Function
Lucianna Kiffer, Rajmohan Rajaraman
In cryptocurrencies, the block reward is meant to serve as the incentive mechanism for miners to commit resources to create blocks and in effect secure the system. Existing systems…