Attribute-Based Multiple User Authentication And Anonymous Data Sharing Scheme Revisited In Cloud Computing

摘要

Data sharing has never been simpler with the advances of cloud computing, and a precise investigation on the mutual data gives a variety of advantages to both the general public and people. Data sharing with countless must consider a few issues, including productivity, data respectability and security of data proprietor. Ring mark is a promising possibility to build a mysterious and bona fide data sharing framework. It enables a data proprietor to namelessly validate his data which can be put into the cloud for storage or investigation reason However the exorbitant declaration confirmation in the conventional open key base setting turns into a bottleneck for this answer for be adaptable. Character based ring mark, which takes out the procedure of authentication check, can be utilized. In this paper, we further upgrade the security of ID-based ring mark by giving forward security: If a mystery key of any client has been endangered, all past produced marks that incorporate this client still stay substantial. This property is particularly vital to any substantial scale data sharing framework, as it is difficult to ask all data proprietors to authenticate their data regardless of whether a mystery key of one single client has been endangered We give a solid and proficient instantiation of our plan, demonstrate its security and give an execution to demonstrate its reasonableness.