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A Note on One Outsourcing Scheme for Big Data Access Control in Cloud

摘要


We analyze Yang et al.'s outsourcing scheme [IEEE TPDS, 2015, 3461-3470] for big data access control in the cloud, and remark that the scheme is awed because it brings the data owner a new challenge for protecting the session keys with more memory overhead. To the best of our knowledge, it is the first time to find such a shortcoming in outsourcing schemes.

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