In order to protect the security and privacy of data exchange between the resource-constrained Internet of Things (IoT) devices
the outsourcing technology is adopted to combine the ciphertext policy attribute-based encryption and equality test. For IoT devices
a concise encryption and decryption algorithm is proposed
as well as the ciphertext detection mechanism performed by the authorized cloud server is established without decryption
thereby alleviating the local computing burden and achieving accurate decryption. Based on the decisional q-1 assumption
it is proved that the proposed scheme resists chosen plaintext attacks and enjoys indistinguishable security. Finally
the experimental analysis shows that the scheme is practical and effective.
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references
SAHAI A, WATERS B. Fuzzy identity-based encryption[C]// International Conference on Theory and Applications of Cryptographic Techniques. Aarhus, Denmark: Springer-Verlag, 2005: 457-473.
YANG G, TAN CH, HUANG Q, et al. Probabilistic Public Key Encryption with Equality Test[C]// International Conference on Topics in Cryptology. San Francisco: Springer-Verlag, 2010: 119-131.
BELGUITH S, KAANICHE N, LAURENT M, et al. PHOABE: Securely outsourcing multi-authority attribute based encryption with policy hidden for cloud assisted IoT[J]. Computer Networks, 2018, 133: 141-156. DOI: 141
ROUSELAKIS Y, WATERS B. Practical constructions and new proof methods for large universe attribute-based encryption[C]// ACM SIGSAC Conference on Computer % Communications Security. Berlin, Germany: ACM, 2013: 463-474.
CUI H, DENG R H, WU G, et al. An Efficient and Expressive Ciphertext-Policy Attribute-Based Encryption Scheme with Partially Hidden Access Structures[C]// International Conference on Provable Security. Nanjing, China: Springer-Verlag, 2016: 19-38.
SHAO J, ZHU Y, JI Q. Efficient Decentralized Attribute-Based Encryption with Outsourced Computation for Mobile Cloud Computing[C]// 2017 IEEE International Symposium on Parallel and Distributed Processing with Applications and 2017 IEEE International Conference on Ubiquitous Computing and Communications (ISPA/IUCC). Guangzhou, China: IEEE, 2017: 417-422.
WANG Q, PENG L, XIONG H, et al. Ciphertext-Policy Attribute-based Encryption with Delegated Equality Test in Cloud Computing[J]. IEEE Access, 2017(6): 760-771. DOI: 760
LIAO Y, CHEN H, LI F, et al. Insecurity of A Key-policy Attribute Based Encryption Scheme with Equality Test[J]. IEEE Access, 2018(6): 10189-10196. DOI: 10189
ZHU H, WANG L, AHMAD H, et al. Key-Policy Attribute-Based Encryption with Equality Test in Cloud Computing[J]. IEEE Access, 2017(5): 20428-20439. DOI: 20428