ENHANCING CLOUD COMPUTING SECURITY AND PRIVACY THROUGH ATTRIBUTE-BASED DATA SHARING

Abstract

Data sharing is a handy and 
financial provider provided via cloud 
computing. Data contents privateness 
additionally emerges from it when you 
consider that the facts is outsourced to 
some cloud servers. To shield the 
precious and touchy information, more 
than a few methods are used to decorate 
get admission to manipulate on the 
shared data. In these techniques, 
Ciphertext-policy attribute-based 
encryption (CP-ABE) can make it extra 
handy and secure. Traditional CP-ABE 
focuses on information confidentiality 
merely, whilst the user’s non-public 
privateness safety is an vital trouble at 
present. CP-ABE with hidden get entry to 
coverage ensures records confidentiality 
and ensures that user’s privateness is no 
longer published as well. However, most 
of the present schemes are inefficient in 
verbal exchange overhead and 
computation cost. Moreover, most of 
these works take no consideration about 
authority verification or the hassle of 
privateness leakage in authority 
verification phase. To handle the troubles 
stated above, a privateness maintaining 
CP-ABE scheme with environment 
friendly authority verification is delivered 
in this paper. Additionally, the secret 
keys of it acquire consistent size. 
Meanwhile, the proposed scheme 
achieves the selective safety underneath 
the decisional n-BDHE trouble and 
decisional linear assumption. The 
computational effects affirm the deserves 
of the introduced scheme.