Security Of Blockchain System Research Articles

Impact of Post Quantum Digital Signatures On Block Chain: Comparative Analysis

The emergence of quantum computing poses a substantial risk to the security of block chain technology, requiring a transition to post-quantum cryptography (PQC) to protect the future integrity and security of block chain systems. This study provides a comprehensive assessment of integrating post-quantum digital signatures into block chain frameworks, aiming to mitigate quantum vulnerabilities while maintaining the reliability, scalability, and integrity of block chain applications. A comprehensive evaluation is conducted to assess the efficacy of post-quantum signature algorithms recommended by NIST in comparison to conventional cryptographic benchmarks like ECDSA. The evaluation primarily centers on the speed of transaction processing, network scalability, and the overall upgrade of security. The results indicate that enhancing block chain systems to counter quantum attacks is intricate. Nevertheless, it is a crucial measure in guaranteeing block chain applications’ enduring security and dependability amidst the ever-changing technical risks. The findings of our analysis indicate that the adoption of post-quantum signatures poses significant technical and operational challenges. However, it also offers opportunities to strengthen the resilience of block chain systems against quantum threats, drive advancements in secure digital transactions, and establish a new benchmark for cryptographic practices in the era of quantum computing. This study provides significant insights and ideas for developers and politicians interested in developing and administering secure, quantum-resistant block chain networks, contributing to the critical conversation on preparing block chain technology for a post-quantum future.

A survey of blockchain consensus safety and security: State-of-the-art, challenges, and future work

Blockchain technology has been widely used in finance, Internet of Things, insurance, and other fields since it was proposed in 2008. As a part of blockchain technology, the consensus protocol has a profound impact on the safety and security of blockchain systems. Therefore, there have been a lot of research on the safety and security of blockchain consensus protocols. However, the research shows us the diversity and complexity which motivate us to do this survey. In this paper, we provide a comprehensive survey focusing on the safety and security of blockchain consensus protocols, where we discuss in detail the classification of blockchain consensus protocols, the potential safety and security problems, safety and security assurance approaches, and validation methods etc. Furthermore, we also identify research challenges and current research gaps, and suggest future work to be further investigated in the end of this paper.

What can blockchain do and cannot do?

ABSTRACT This paper studies the economic functions of blockchain. First, by explaining blockchain technologies from an economic perspective, it introduces the Token Paradigm to summarize mainstream blockchain systems, discusses the true meanings of consensus and trustlessness in the blockchain field, and analyzes the functions of smart contracts. Next, it categorizes major blockchain applications according to how they use tokens and discusses relevant economic problems such as tokens’ monetary features, tokens’ impacts on blockchain platforms, blockchain’s governance functions, and the efficiency and security of blockchain systems. Finally, it discusses the concept of Blockchain as a Financial Infrastructure (BaaFI), which is represented by central bank digital currencies (CBDC) and global stable coins.

A survey on the security of blockchain systems

Since its inception, the blockchain technology has shown promising application prospects. From the initial cryptocurrency to the current smart contract, blockchain has been applied to many fields. Although there are some studies on the security and privacy issues of blockchain, there lacks a systematic examination on the security of blockchain systems. In this paper, we conduct a systematic study on the security threats to blockchain and survey the corresponding real attacks by examining popular blockchain systems. We also review the security enhancement solutions for blockchain, which could be used in the development of various blockchain systems, and suggest some future directions to stir research efforts into this area.