An Enhanced Cloud Based Attribute Cryptography Technique for Hierarchy Shared Files

Abstract

Ciphertext-policy attribute-based Cryptography (CP-ABC) has been a preferred cryptography technology to unravel the tough drawback of secure information sharing in cloud computing. The shared info files generally have the characteristic of structure hierarchy, notably at intervals the house of care and so the military. However, the hierarchy structure of shared files has not been explored in CP-ABC. Throughout this paper, degree economical file hierarchy attribute-based Cryptography theme is projected in cloud computing. The stratified access structures unit integrated into one access structure, and then, the stratified files unit encrypted with the integrated access structure. The ciphertext components related to attributes might be shared by the files. Therefore, every ciphertext storage and time worth of cryptography unit saved. Moreover, the projected theme is proved to be secure beneath the standard assumption. Experimental simulation shows that the projected theme is incredibly economical in terms of cryptography and coding. With the number of the files increasing, the advantages of our theme become a lot of and a lot of conspicuous.