In Proof-of-Work (PoW) systems, a 51% attack happens when an attacker controls more than half of the blockchain’s hashing ...

Proof of History explains how blockchains cryptographically track time to order transactions efficiently and scale without ...

Abstract: Recent years have seen extensive adoption of blockchain technology across a variety of application domains, all with the goal of enhancing data privacy, system trustworthiness, and security.

Abstract: The rapid advancement of quantum computing is poised to disrupt the foundations of classical cryptography, calling into question the long-term security of widely used algorithms. Classical ...