Secure and Auditable Data Distribution Architecture for Decentralized Service Platforms

Abstract

Decentralized information services increasingly require reliable mechanisms for secure data distribution and access accountability. Traditional centralized management systems are vulnerable to single-point failures and unauthorized data manipulation. This study proposes a distributed data distribution architecture based on blockchain-assisted access control and encrypted storage services. Service data are encrypted and stored in distributed repositories, while access records and key management information are maintained on a consortium blockchain. A proxy re-encryption mechanism is introduced to support dynamic authorization without exposing original data. The system is implemented on a hybrid cloud environment and evaluated under large-scale service workloads. Results indicate that the proposed architecture enhances data integrity, traceability, and access transparency while maintaining acceptable system throughput.