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An Efficient Time specified Access Mechanism for Cloud Storage

Publication Date : 01/10/2015

Author(s) :

Minu Varghese , Prema Mani.

Volume/Issue :
Volume 2
Issue 9
(10 - 2015)

Abstract :

This research work generally focused on providing an efficient time specified access mechanism for shared cloud data. With the rapid development of versatile cloud services, it becomes largely susceptible to use cloud services to share data in a friend circle in the cloud computing environment. Since it is not feasible to implement full life cycle privacy security, access control becomes a difficult task, especially when share sensitive data on cloud servers. In order to solve this problem, proposed a key control mechanism with time-specified attributes (KCM-TSA), which is able to enforce the security of user privacy over the cloud in a controllable way. In the KCM-TSA scheme, every ciphertext is associated with a time interval while private key is associated with a time instant. The ciphertext can only be decrypted if both the time instant is in the allowed time interval and the attributes associated with the ciphertext satisfy the key’s access structure. The KCM-TSA is able to solve some important security problems by supporting user-defined authorization period and by providing fine-grained access control during the period. The sensitive data will be securely self-destructed after a user-specified expiration time. This scheme satisfies the security requirements and is superior to other existing schemes.

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An Efficient Time specified Access Mechanism for Cloud Storage

September 30, 2015