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@article{196075,
        author = {P. Renuka and Venkatesh Rajamahanti and R. Yogendra Bobby and P. Akhil and S. Baba Shaheer},
        title = {Optimized Dual Access Control for Secure Cloud Storage},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {12},
        number = {11},
        pages = {1394-1398},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=196075},
        abstract = {The rapid adoption of cloud computing has introduced critical challenges related to data privacy, unauthorized access, and auditability in shared storage environments. This paper presents an Optimized Dual Access Control mechanism for secure cloud storage that combines ring-signature-based homomorphic authenticators with Ciphertext-Policy Attribute-Based Encryption (CP-ABE) and One-Time Password (OTP) verification. The proposed system enables a public verifier to audit the integrity of shared cloud data without retrieving the entire dataset, while preserving the anonymity of individual block signers. A batch auditing extension further improves efficiency by processing multiple verification tasks simultaneously. On the access-control side, a two-level authorization model involving both the data owner and the cloud server resists Distributed Denial-of-Service (DDoS) and Economic Denial-of-Sustainability (EDoS) attacks. User registration and revocation are managed by a group manager, and traceability capabilities allow the group manager to identify data owners during disputes. Performance analysis confirms that the construction imposes negligible overhead compared to single-layer alternatives, while providing substantially stronger security guarantees. Experimental results demonstrate correctness in AES-CBC encryption, successful group-signature generation, and accurate batch auditing across concurrent verification tasks.},
        keywords = {cloud storage security, dual access control, ring signatures, CP-ABE, homomorphic authenticators, batch auditing, OTP verification},
        month = {April},
        }