Multi-party protocol with access control on symmetric fully homomorphic encryption scheme

Abstract

Homomorphic encryption is a particular class of encryption presented by Rivest, Adleman et al. in 1978 that permits mathematical operations on the encrypted data without decrypting it [1], in fact, without knowing the decryption key. In the last few years, homomorphic encryption techniques have been studied deeply since they have become more and more vital and important in several different cryptographic applications such as lottery protocols, voting protocols, anonymity, privacy, and electronic auctions. This paper introduces the symmetric fully homomorphic scheme (Sym-FHE) and multi-party protocol with access control to allow many users access and manipulate the data in the cloud without violating the confidentiality of sensitive data.