Cryptocurrencies and Blockchain-based technologies are disrupting all markets. While the
potential of such technologies remains to be seen, there is a current need to understand …

In this literature review, we first briefly provide an introduction on the privacy aspect of
blockchain systems and why it is a difficult quality to achieve, especially using traditional …

With the emergence of countless independent blockchain systems in recent years, cross-
chain transactions have attracted considerable attention, and lots of solutions have been put …

LDSP is a layer-2 cryptocurrency payment system that supports a dynamic and distributed
setup with scalability and payer privacy. Different from the statekeeping merchant …

The lack of scalability is a leading issue of blockchain. By transferring transactions to off-
chain, 2-party payment channels achieve instant transaction confirmation between channel …

Payment channel networks, such as Bitcoin's Lightning Network, promise to improve the
scalability of blockchain systems by processing the majority of transactions off-chain. Due to …

Blockchain based systems, in particular cryptocurrencies, face a serious limitation:
scalability. This holds, especially, in terms of number of transactions per second. Several …

Blockchain decentralization not only ensures transparency of transactions to eliminate need
of trusting third party, but also makes the transactions of the network to be publicly …