Название: Privacy Preservation in Blockchain-based Financial Services
Автор: Liang Xue, Xiaodong Lin, Xuemin (Sherman) Shen
Издательство: Springer
Серия: Wireless Networks
Год: 2026
Страниц: 161
Язык: английский
Формат: pdf (true), epub
Размер: 15.1 MB

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.

The monograph is organized as follows: Chap. 1 offers a broad introduction to blockchain technology and introduces four major application domains in finance: lending, payment, fair data trading, and flexible data sharing. It also analyzes the privacy and accountability requirements specific to each domain and outlines the associated challenges. Chapter 2 reviews foundational cryptographic primitives and technologies that enhance privacy and accountability—such as commitment schemes, zero-knowledge proofs, and smart contracts—which serve as the building blocks of the proposed schemes. Chapters 3 through 6 each focus on a specific application domain. Chapter 3 addresses double-mortgage fraud in decentralized lending by proposing a privacy-preserving mortgage management scheme that conceals borrower identity on-chain while enabling accountability in case of fraud. Chapter 4 introduces a decentralized anonymous payment system with regulatory enforcement, balancing user privacy with compliance by leveraging zero-knowledge proofs. Chapter 5 presents a privacy-aware and fair data trading mechanism that secures data availability, reliable retrieval, identity privacy while supporting fine-grained data access control. Chapter 6 proposes a blockchain-based financial data sharing and key update scheme that integrates flexible access control and efficient key management. Chapter 7 wraps up the monograph and explores potential avenues for future research in privacy preservation for blockchain-based financial services.

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.

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