Many organizations need large amounts of high quality data for their applications, and one
way to acquire such data is to combine datasets from multiple parties. Since these …

Cryptocurrency exchange services are either trusted central entities that have been routinely
hacked (losing over 8 billion USD), or decentralized services that make all orders public …

In this paper we present ALBATROSS, a family of multiparty randomness generation
protocols with guaranteed output delivery and public verification that allows to trade off …

Front-running is the malicious, and often illegal, act of both manipulating the order of
pending trades and injecting additional trades to make a profit at the cost of other users. In …

The scientific interest in the area of Decentralized Randomness Beacon (DRB) protocols
has been thriving recently. Partially that interest is due to the success of the disruptive …

Abstract The proliferation of Decentralised Finance (DeFi) and Decentralised Autonomous
Organisations (DAO), which in current form are exposed to front-running of token …

While blockchain systems are quickly gaining popularity, front-running remains a major
obstacle to fair exchange. In this paper, we show how to apply identity-based encryption …

Traditional blockchains grant the miner of a block full control not only over which
transactions but also their order. This constitutes a major flaw discovered with the …

Time-based primitives like time-lock puzzles (TLP) are finding widespread use in practical
protocols, partially due to the surge of interest in the blockchain space where TLPs and …

Recent years have seen a tremendous growth in the interest in secure multiparty
computation (MPC) and its applications. While much progress has been made concerning …