Blockchain-Enabled Decentralized Identity Management for Secure Internet Services and Network Authentication

Abstract

In contemporary digital ecosystems, legacy identity management paradigms rely heavily on centralized Identity Providers (IdPs) and federated single sign on (SSO) frameworks. These architectures introduce severe structural vulnerabilities, including single points of failure, pervasive user tracking, identity theft, and systemic susceptibility to credential stuffing and Distributed Denial of Service (DDoS) attacks. To overcome these bottlenecks, Decentralized Identity Management (DIDM) backed by Distributed Ledger Technology (DLT) and Self-Sovereign Identity (SSI) principles offers a privacy-preserving alternative. This paper presents a comprehensive review and performance analysis of a blockchain-enabled decentralized identity framework engineered for secure internet services and high-throughput network authentication. By harmonizing W3C Decentralized Identifier (DID) specifications, verifiable credentials (VCs), zero-knowledge proofs (BBS+ signatures), and smart-contract-based cryptographic accumulators on a permissioned Hyperledger Fabric ledger, the proposed system eliminates centralized trust while maintaining operational efficiency. Experimental benchmarks demonstrate sub-50 ms verification latencies and sustained throughput exceeding 3,000 transactions per second (TPS) under heavy request loads. Furthermore, threat model evaluation validates robust resilience against Sybil, Man-in-the-Middle, replay, and impersonation attacks, confirming suitability for enterprise Zero Trust Network Access.

KEYWORDS: Decentralized Identity, Self-Sovereign Identity (SSI), Blockchain, Zero-Knowledge Proofs, Network Authentication, Hyperledger Fabric, Zero Trust Architecture.