Assessing the Scalability and Security of Decentralized Identity Management Systems in Blockchain-Based Platforms

Abstract

The integration of blockchain technology into identity management systems (IdMS) has fostered a new paradigm of decentralized identity (DID) frameworks. These systems aim to empower users with greater control over their digital identities while minimizing reliance on centralized authorities. However, concerns persist regarding the scalability and security of these architectures in real-world, large-scale applications. This paper critically evaluates the scalability limitations and security implications of blockchain-based decentralized IdMS, drawing implementations and empirical studies. Our analysis identifies critical trade-offs between throughput, latency, consensus mechanisms, and resistance to adversarial threats, and provides insights into the future research trajectory required to enhance these systems' robustness and viability.