Attribute-Based Data Sharing Scheme Revisited in Cloud Computing

Abstract

Cipher text policy attribute based mostly cryptography may be very promising cryptography technique for secure information sharing at intervals the context of cloud computing. Information owner is allowed to completely management the access policy associated with his information that to be shared. However, CP-ABE is restricted to a attainable security risk that is referred to as key understanding disadvantage whereby the key keys of users have to be compelled to be compelled to be issued by a trustworthy key authority. Besides, most of the current CP-ABE schemes cannot support attribute with capricious state. throughout this paper, we've a bent to urge back attribute-based information sharing theme thus on unravel the key but together improve the standard of attribute, so as that the following theme could be a ton of friendly to cloud computing applications. we've a bent to propose Associate in Nursing improved two-party key supplying protocol can which will| that may guarantee that neither key authority nor cloud service provider will compromise the total secret key of a user one by one. Moreover, we've a bent to introduce the construct of attribute with weight, being provided to spice up the expression of attribute, which can not exclusively extend the expression from binary to capricious state, but together lighten the quality of access policy