This book investigates novel privacy-preserving and accountable approaches for blockchain-based financial services. The authors start by providing an overview of blockchain technology and the types of blockchains. The book then reviews the privacy-preserving and accountability-enhancing techniques that are building blocks of our designed schemes. In the following chapters, the authors provide privacy-preserving and accountable solutions for different blockchain-based financial services. Finally, the authors discuss future research directions of privacy preservation in blockchain-based financial applications.Provides a unified framework for privacy preservation and accountability in blockchain financial services;Applies advanced cryptography to lending, anonymous payments, data trading, and flexible data sharing;Delivers practical solutions using zero-knowledge proofs, commitments, and smart contracts with performance analysis.
