Keyword has emerging as a promising pattern for data outsourcing and high-quality data services. However, concerns of sensitive information on potentially cause privacy problems. Data encryption protects data security to some extent, but at the cost of compromised efficiency. Searchable symmetric encryption (SSE) allows retrieval of encrypted data. In this paper, we focus on addressing data pri...

In recent years, the combination of power systems and IoT (Internet things) has become a new generation smart grid. Cloud computing is used to provide storage services for grid data due its convenience. Generally, searchable encryption technology considered feasible solution guarantee security support search function. Li proposed symmetric scheme based on pseudo-random function in 2019. this pa...

Dynamic searchable encryption satisfies users’ needs for ciphertext retrieval on semi-trusted servers, while allowing users to update server-side data. However, cloud servers with dynamically updatable data are vulnerable information abuse and file injection attacks, current public key-based dynamic algorithms often complicated in construction high computational overhead, which is not efficient...