We survey the state-of-the-art non-interactive zero-knowledge argument schemes and their
applications in confidential transactions and private smart contracts on blockchain. The main …

To reduce the transmission cost of blockchain confidential transactions, we propose
SymmeProof, a novel communication efficient non-interactive zero-knowledge range proof …

One of the most promising innovations offered by the cryptographic currencies (like Bitcoin)
are the so-called smart contracts, which can be viewed as financial agreements between …

Zero-knowledge arguments have become practical, and widely used, especially in the world
of Blockchain, for example in Zcash. This work revisits zero-knowledge proofs in the discrete …

Abstract The Anonymous Zero-knowledge Transactions with Efficient Communication
(AZTEC) protocol describes a set of zero-knowledge proofs that define a confidential …

Our transaction history in the current centralized banking system has the ability to reveal a
lot of private information for each spender, both to the banking system itself, but also to those …

We introduce the abstract framework of decentralized smart contracts system with balance
and transaction amount hiding property over account-model blockchain. To build a concrete …

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

In recent years, many advances have been made in cryptography, as well as in the
performance of communication networks and processors. As a result, many advanced …

We propose Lelantus, a new anonymous payment system which ensures both transaction
confidentiality and anonymity with small proof sizes, short verification times and without …