Based on lagrange interpolation for smart sensors

The Smart Sensor is functioning as information exchanger with hosts. In order to reduce the communication time that the host sent to the members of a medical information system. Each host will be given a decryption keys to access the confidential document by inputting a secret key into an interpolation function which is generated from Lagrange interpolation. Since tasks are done by the Smart Sensor, the whole process will be taken within a short time period because there is no physically connection between the end devices. The information exchanging occurs at the end hosts. Otherwise, it is able to work across various systems and solve the difficulty of integrating heterogeneous systems.