Trading goods lies at the backbone of the modern economy and the recent advent of
cryptocurrencies has opened the door for trading decentralized (digital) assets: A large …

Time-lock puzzles (TLP) are a cryptographic tool that allow one to encrypt a message into
the future, for a predetermined amount of time T. At present, we have only two constructions …

Decentralized and permissionless ledgers offer an inherently low transaction rate, as a
result of their consensus protocol demanding the storage of each transaction on-chain. A …

In this work, we provide a systematisation of knowledge of delay-based cryptography, in
which we discuss and compare the existing primitives within cryptography that utilise a time …

Despite the myriad benefits offered by blockchain technology, most of them still face several
interrelated issues, such as limited transaction throughput, exorbitant transaction fees, and …

Payment channels (PC) are a promising solution to the scalability issue of cryptocurrencies,
allowing users to perform the bulk of the transactions off-chain without needing to post …

Decentralized cryptocurrencies still suffer from three interrelated weaknesses: Low
transaction rates, high transaction fees, and long confirmation times. Payment Channels …

Payment channel networks (eg, the Lightning Network in Bitcoin) constitute one of the most
popular scalability solutions for blockchains. Their safety relies on parties being online to …

Payment Channel Networks (PCNs) are innovative second-layer scaling technologies that
aim to improve transaction rates, reduce on-chain storage costs, and enable efficient atomic …

Repeated Modular Squaring is a versatile computational operation that has led to practical
constructions of timed-cryptographic primitives like time-lock puzzles (TLP) and verifiable …