SUKHODOLSKIY I A, ZAPECHNIKOV S V. An access control model for cloud storage using attribute-based encryption[C]//Proceedings of the 2017 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering. Piscataway, NJ:IEEE, 2017:578-581.
 SANDHIA G K, KASMIR RAJA S V, JANSI K R. Multi-authority-based file hierarchy hidden CP-ABE scheme for cloud security[J]. Service Oriented Computing and Applications, 2018,12(3/4):295-308.
 WANG S, ZHOU J, LIU J K, et al. An efficient file hierarchy attribute-based encryption scheme in cloud computing[J]. IEEE Transactions on Information Forensics and Security, 2016, 11(6):1265-1277.
 GRUMAN G, KNORR E. What cloud computing really means[J]. Courts Today, 2010, 8(4):34.
 刘建,鲜明,王会梅,等.面向移动云的属性基密文访问控制优化方法[J].通信学报,2018,39(7):43-53.(LIU J, XIAN M, WANG H M, et al. Optimization method for attribute-based cryptographic access control in mobile cloud computing[J]. Journal on Communications, 2018, 39(7):43-53.)
 NARUSE T, MOHRI M, SHIRAISHI Y. Attribute revocable attribute-based encryption with forward secrecy for fine-grained access control of shared data[EB/OL].[2019-01-03]. https://www.researchgate.net/publication/320140444_Attribute_Revocable_Attribute-Based_Encryption_with_Forward_Secrecy_for_Fine-Grained_Access_Control_of_Shared_Data.
 GOYAL V, PANDEY O, SAHAI A, et al. Attribute-based encryption for fine-grained access control of encrypted data[C]//Proceedings of the 13th ACM Conference on Computer and Communications Security. New York:ACM, 2006:89-98.
 闫玺玺,孟慧.支持直接撤销的密文策略属性基加密方案[J].通信学报,2016,37(5):44-50.(YAN X X, MENG H. Ciphertext policy attribute-based encryption scheme supporting direct revocation[J]. Journal on Communications, 2016, 37(5):44-50.)
 BETHENCOURT J, SAHAI A, WATERS B. Ciphertext-policy attribute-based encryption[C]//Proceedings of the 2007 IEEE Symposium on Security and Privacy. Washington, DC:IEEE Computer Society, 2007:321-334.
 SAHAI A, WATERS B. Fuzzy identity-based encryption[C]//Proceedings of the 2005 Annual International Conference on the Theory and Applications of Cryptographic Techniques, LNCS 3494. Berlin:Springer, 2005:457-473.
 OSTROVSKY R, SAHAI A, WATERS B. Attribute-based encryption with non-monotonic access structures[C]//CCS'07:Proceedings of the 14th ACM Conference on Computer and Communications Security. New York:ACM, 2007:195-203.
 CHEUNG L, NEWPORT C. Provably secure ciphertext policy ABE[C]//CCS'07:Proceedings of the 14th ACM Conference on Computer and Communications Security. New York:ACM, 2007:456-465.
 LEWKO A, OKAMOTO T, SAHAI A, et al. Fully secure functional encryption:attribute-based encryption and (hierarchical) inner product encryption[C]//Proceedings of the 2010 Annual International Conference on the Theory and Applications of Cryptographic Techniques, LNCS 6110. Berlin:Springer, 2010:62-91.
 GREEN M, HOHENBERGER S, WATERS B. Outsourcing the decryption of ABE ciphertexts[C]//SEC'11:Proceedings of the 20th USENIX conference on Security. Berkeley, CA:USENIX Association, 2011:34.
 ODELU V, DAS A K, KHURRAM KHAN M, et al. Expressive CP-ABE scheme for mobile devices in IoT satisfying constant-size keys and ciphertexts[EB/OL].[2019-01-06]. https://www.researchgate.net/publication/313814297_Expressive_CP-ABE_Scheme_for_Mobile_Devices_in_IoT_satisfying_Constant-size_Keys_and_Ciphertexts.
 OHIGASHI T, NISHIMURA K, AIBARA R, et al. Implementation and evaluation of secure outsourcing scheme for secret sharing scheme on cloud storage services[C]//Proceedings of the 2014 IEEE 38th International Computer Software and Applications Conference Workshops. Piscataway, NJ:IEEE, 2014:78-83.
 HUR J. Improving security and efficiency in attribute-based data sharing[J]. IEEE Transactions on Knowledge and Data Engineering, 2013, 25(10):2271-2282.
 DINH H T, LEE C, NIYATO D, et al. A survey of mobile cloud computing:architecture, applications, and approaches[J]. Wireless Communications and Mobile Computing, 2013, 13(18):1587-1611.
 AHMAD M S, MUSA N E, NADARAJAH R, et al. Comparison between Android and iOS operating system in terms of security[C]//Proceedings of the 2013 8th International Conference on Information Technology in Asia. Piscataway, NJ:IEEE, 2013,7:1-4.