Abstract-Type-based proxy re-encryption can solve the finegrained delegation perfectly, and being more and more important in applications. However, as we know, there is still a problem come up with type-based proxy re-encryption in adaptive corruption model. In this paper, we propose a typedbased proxy re-encryption in the adaptive corruption model without random oracle; the scheme is CCA secure and proxyinvisible. Compared with the type-based proxy re-encryption proposed by J.S.D in 2013, this scheme has advantages in both security and efficiency.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.