Privacy-Preserving Identity Management using Blockchain in Cybersecurity Systems

Abstract

The proposed privacy-preserving identity management framework in this research is the combination of blockchain technology, zero-knowledge proofs, and adaptive sharding, which improves security, scalability and regulatory compliance and cybersecurity system. In contrast to current blockchain-based identity mechanisms, the presented mechanism involves encryption of identity attributes and distributes them on dynamic permissioned shards with the ability to selectively disclose identity information without leaking sensitive information. Comparison to Sovrin SSI, uPort and Civic show off impressive results, with a$33-63$percent increase in the transaction rate, 32 percent reduction in the duration of verification and 27 percent less time to generate the proofs. Compliance is achieved by reducing the storage overhead during which the immutability is preserved with chameleon hash-based redaction. There is a huge probability of leakage of privacy and efficiency of the consensus is 97 percent, so identity operations are sound and resistant to tampering. The architecture even makes it possible to have safe cross-domain authentication within heterogeneous environment. These results reassure that the framework will provide secure, efficient, and privacy-compliant identity management and thus will be very useful in enterprise, government, and IoT-based cybersecurity environments.