Blockchain for Digital Identity Management: Ensuring Privacy, Security, and User Control Over Personal Information

Abstract

A problem of controlling digital identity has turned out to be one of the problems of the age of great big digital transformations where centralized systems will likely encounter privacy breach, security vulnerability, and lack of control over the users. The paper assesses the efficacy of blockchain-based digital identity management systems to maintain privacy, security, and autonomy of users. The research employs the in-depth experimental study to contrast the designs of blockchain with conventional centralized and federated identity systems on several parameters of performance, security, privacy, scalability and regulatory compliance. The findings reveal that blockchain-based identification systems negatively affect security breach by a large margin, enhance privacy protection through the use of cryptographic functionality, and offer more user independence as exemplified by self-sovereign identity systems. The overheads to the processing are also added but the scalability is maintained at the optimal levels. The results show that blockchain can become a trusted, transparent, and convenient base of the new generation digital identity management systems.