期刊
IEEE TRANSACTIONS ON CLOUD COMPUTING
卷 10, 期 2, 页码 762-773出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCC.2020.2975184
关键词
CloudIoT; access control over data; attribute based encryption; hidden access structure; accountability
类别
资金
- National Natural Science Foundation of China [61972095, U1736112, 61972094, 61902070, 61772009, 61672207, 61822202, 61872089]
This article proposes a CP-ABE scheme for access control of IoT data on the cloud, providing fine-grained and flexible access control and addressing key abuse issues.
The pervasive, ubiquitous, and heterogeneous properties of IoT make securing IoT systems a very challenging task. More so when access and storage are performed through a cloud-based IoT system. IoT data stored on cloud should be encrypted to ensure data privacy. It is also crucial to allow only authorized entities to access and decrypt the encrypted data. In this article, we propose a ciphertext-policy attribute-based encryption (CP-ABE) scheme that enables fine-grained access control of encrypted IoT data on cloud. CP-ABE is regarded as a highly promising approach to provide flexible and fine-grained access control, which is quite suited to secure cloud based IoT systems. We first present an access control system model of CloudIoT platform based on ABE. Based on the presented system model, we construct a ciphertext-policy hiding CP-ABE scheme, which guarantees the privacy of the users. We further construct a white-box traceable CP-ABE scheme with accountability in order to address the user key abuse and authorization center key abuse. Experiment illustrates the proposed systems are efficient.
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