A secure and efficient outsourced computation on data sharing scheme for privacy computing

With the development of computer technology, it makes malicious users more easily get data stored in cloud. However, these data are always related to users’ privacy, and it is harmful when the data are acquired by attackers. Ciphertext-policy attribute-based encryption (CP-ABE) is suitable to achieve privacy and security in cloud. In this paper, we put forward a secure and efficient outsourced computation algorithm on data sharing scheme for...