US Patent 11582233 Secure authentication of devices for Internet of Things

A computer-implemented system and method for secure authentication of IoT devices are disclosed. The method for secure authentication of IoT devices comprises establishing a network connection with a network operator server via a control channel, establishing identity of the network operator server using a pre-shared server key from one or more of pre-shared server keys, establishing identity of the IoT device using a pre-shared client key from one or more of pre-shared client keys and cryptographically generating a session key for a network session to allow secure data exchange between the network operator server and the IoT device. The cryptographically generated session key is used for securely authenticating application running on the authenticated IoT device.