Traceable and Revokable Attributes-Based Verifiable Searchable Authentication Scheme for Blockchain Data Sharing
摘要
In cloud computing and blockchain-integrated attribute-based keyword search (B-ABKS) frameworks, achieving seamless data-sharing has emerged as a promising solution for resource allocation and utilization. To enable secure, authenticated, verifiable query keywords, search blockchain systems pose significant security challenges arising from unauthorized access, exploiting vulnerabilities, and sophisticated attacks. Existing schemes face significant challenges in addressing evolving threats, tracing illegal access, detecting malicious activity ensuring robust security measures with limited computational and storage overhead. In the above-mentioned challenges, we design a traceable and revokable attribute-based verifiable searchable authenticated scheme for blockchain data sharing. The proposed hybrid framework facilitates secure and authenticated keyword searches while ensuring completeness, validity, and freshness of retrieved data without relying on the semi-trusted cloud server (CS). Our scheme integrates cryptographic signatures within hybrid indexes of the authenticated database, ensuring efficient keyword search verification, real-time traceability, and scalable revocation of compromised users in the blockchain system. Finally, the security, functionality, and performance evaluation results show that our proposed scheme performs better efficiently than the compared scheme.