TLS / DTLS

NB-IoT networks are designed to connect IoT edge devices, such as devices providing connection to enterprise or public networks, or to application cloud over long distances. According to the NB-IoT network architecture principles, an eUICC or eSIM handles the IoT edge device authentication over a network server.

On top of the default security implemented in the NB-IoT protocol, an additional security layer is often required in order to manage the payload encryption/decryption as well as the keys and certificates provisioning between the IoT devices and the application server.

Trusted Objects solutions implement the DTLS protocol, which allows to deliver end-to-end security on NB-IoT connectivity. They implement the UDP-DTLS protocol. The TO136 secure element brings a significantly faster data stream than the regular TCP-TLS protocol and battery life improvement. Trusted Objects' DTLS (Datagram Transport Layer Security) stack on UDP combines the speed and lightweight characteristics of the UDP transport protocol with a high level of security equivalent to TLS. In addition, DTLS brings optimized capabilities in terms of packetization, ordering and retransmission.