Author : B. Rajeswari 1
Date of Publication :1st April 2018
Abstract: Cloud computing provides a versatile and convenient means for knowledge sharing, that brings numerous edges for each the society and people. However, there exists a natural resistance for users to directly source the shared knowledge to the cloud server since info} typically contain valuable information. Thus, it's necessary to position cryptographically increased access management on the shared knowledge. Identity-based cryptography may be a promising cryptanalytic primitive to create a sensible knowledge sharing system. However, access management isn't static. That is, once some user’s authorization is terminated, there ought to be a mechanism which will take away him/her from the system. Consequently, the revoked user cannot access each the antecedently and afterwards shared knowledge. to the present finish, we tend to propose a notion referred to as revocable-storage identity-based cryptography (RS-IBE), which may offer the forward/backward security of ciphertext by introducing the functionalities of user revocation and ciphertext update at the same time. What is more, we tend to gift a concrete construction of RS-IBE, and prove its security within the outlined security model. The performance comparisons indicate that the planned RS-IBE theme has blessings in terms of practicality and potency, and so is possible for a sensible and cost-efficient data-sharing system. Finally, we offer implementation results of the planned theme to demonstrate its utility.
Reference :
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