Obfuscating Ciphertext-Policy Attribute-Based Re-Encryption for Sensor Networks with Cloud Storage

【Author】 Teng, Minyu; Han, Jingxuan; Xie, Jintao; Gao, Jiayao; Li, Jiangfeng; Shi, Yang

【Source】ACM TRANSACTIONS ON SENSOR NETWORKS

【影响因子】2.560

【Abstract】With the rapid growth of wireless sensor networks, secure data transmission, storage, and distribution in such networks has become an urgent demand. To defend against security risks such as data leakage, key compromise, and unauthorized misuse of data simultaneously, we propose a novel obfuscatable ciphertext-policy attribute-based re-encryption scheme with a specially designed obfuscator. The proposed scheme leverages program obfuscation to transform the re-encryption program codes into an unintelligible form and embed the private keys into the obfuscated implementation. Consequently, the proposed scheme protects data confidentiality and keeps the secrecy of the private key while providing fine-grained access control. Formal proofs for the security of the proposed re-encryption scheme and the obfuscator are provided. Extensive experiments have been conducted on representative platforms, including cloud servers, workstations, and embedded devices, to evaluate the computational efficiency and energy consumption of the scheme. Experimental results indicate that the scheme achieves high efficiency on various platforms and economical energy consumption on typical embedded devices with constrained resources.

【Keywords】Sensor network; cloud computing; ciphertext-policy attribute-based en- cryption; program obfuscation

【发表时间】2024 SEP

【收录时间】2024-10-22

【文献类型】案例研究

【主题类别】

区块链技术-协同技术-云存储