Designing RF Ring Oscillator Using Current-Mode Technology

Abstract-In medical cloud computing, a patient can remotely outsource her medical data to the cloud server. In this case, only authorized doctors are allowed to access the data since the medical data is highly sensitive. Encrypting the data before outsourcing is a commonly used approach, where the patient only needs to send the corresponding encryption key to the authorized doctors.In addition, propose two Secure and Efficient Dynamic Searchable Symmetric Encryption (SEDSSE) schemes over medical cloud data. Firstly, we leverage the secure k-Nearest Neighbor (kNN) and Attribute-Based Encryption (ABE) techniques to propose a dynamic searchable symmetric encryption scheme, which can achieve two important security features, i.e., forward privacy and backward privacy which are very challenging in the area of dynamic searchable symmetric encryption.Extensive experiments demonstrate the efficiency of our schemes on storage overhead, index building, trapdoor generating and query