Hybrid Internet of Things (IoT) data transmission security corresponding to device verification

The Internet Of Things (IoT) devices are popular and deployed generally. Due to the wireless data transmission between each IoT device and remote service hosts, considering the security of data, the data transmission with security is needed. With less manual operation assistance, to make IoT service configuration automatically done well with security, the way to exchange the security key and identification each other becomes an important issue. In this research, Hybrid Internet Of Things (IoT) Data Transmission Security corresponding to Device Verification is proposed. Each IoT device can be differentiated and identified individually. The IoT device can provide its own security independent from another. Based on the unique MAC address of each IoT device, each device can be identified individually. According to the verification result, the public key of asymmetric cryptosystem can be obtained. Based on asymmetric cryptosystem, the common key from 20 to 200 bytes can be exchanged and decrypted at a local service server less than 0.3 s. The transmission time in LAN can be less than 0.1 s. Corresponding to the various data length from 20 bytes to 1 MB, the encryption time delay at an IoT device is about 0.5 s and the decryption time delay at a local service server is about 0.4 s. Furthermore, the time delay for the data encryption at the IoT device, transmission in LAN, and decryption at a local service will cost less than 1 s. The verification shows the acceptable cost of the proposed application with the hybrid cryptosystem.