Blockchain and Distributed Ledger Technologies for Secure System Design

Abstract

The contemporary distributed systems are becoming highly dependent on strong security protocols to secure sensitive information, maintain continuity services, and sustain the trust of people in highly networked systems. With the increasingly advanced cyber threats, centralized security architectures are increasingly limited in ensuring confidentiality, integrity, and availability. This paper explores the idea of Distributed Ledger Technology (DLT) as a new security paradigm to improve trust and resiliency of distributed infrastructures. A systematic review of the literature has been done, with the establishment of a conceptual framework to serve as an assessment of how mechanisms of DLT can be applied to overcome the fundamental security issues. The review summarizes the recent empirical and theoretical research results to evaluate the efficiency of blockchain and ledger technologies associated with securing distributed systems. The findings show that classifications of immutability and cryptographic access controls in data integrity and decentralized consensus models enhance the availability and security of data, respectively. Nonetheless, trade-offs were discovered that were never previously anticipated, specifically, scalability and security. When more transaction throughput is achieved, decentralization tends to decrease, and the risk of vulnerabilities also increases. Also, energy usage and latency are significant issues for large-scale deployments. On the whole, this paper has concluded that even though DLT has significant security advantages, its implementation should be well-coordinated with system needs and operational limitations. The results provide useful advice to secure system designers who want to optimize performance, cost, and resilience of the next generation distributed environment (