期刊
TSINGHUA SCIENCE AND TECHNOLOGY
卷 20, 期 1, 页码 72-80出版社
TSINGHUA UNIV PRESS
DOI: 10.1109/TST.2015.7040516
关键词
secure sharing; sensitive data; big data; proxy re-encryption; private space
类别
资金
- National Natural Science Foundation of China [61173170, 61300222, 61433006, U1401258]
- Independent Innovation Fund of Huazhong University of Science and Technology [2012TS052, 2012TS053, 2013QN120, CXY13Q019]
Users store vast amounts of sensitive data on a big data platform. Sharing sensitive data will help enterprises reduce the cost of providing users with personalized services and provide value-added data services. However, secure data sharing is problematic. This paper proposes a framework for secure sensitive data sharing on a big data platform, including secure data delivery, storage, usage, and destruction on a semi-trusted big data sharing platform. We present a proxy re-encryption algorithm based on heterogeneous ciphertext transformation and a user process protection method based on a virtual machine monitor, which provides support for the realization of system functions. The framework protects the security of users' sensitive data effectively and shares these data safely. At the same time, data owners retain complete control of their own data in a sound environment for modern Internet information security.
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