Trajectory-Based Authenticated Key Establishment for Dynamic Internet of Things

In Internet of Things (IoT), cryptography-based security services are widely used to mitigate threats. However, establishing cryptographic keys between entities in dynamic IoTs is a challenging issue, due the high mobility these entities. They may not have established secrets prior key establishment, and establishment has be finished limited time. Existing solutions either rely on having secrets, or latency that meet time limit. This paper proposes new method does use secret trust efficiency. The method, called Trajectory-based Authenticated Key Establishment (TAKE), establishes shared uses it derive pair symmetric keys, using only real-time trajectory data moving entity. can also for authentication establish asymmetric keys. Theoretical analysis experimental evaluation demonstrate TAKE efficiently with multiple levels resist attacks authentication, confidentiality integrity. Experiment results show distinguish authorised them reliability, true positive rate 99% false 0. One finishes within 200 ms, which significantly faster than other without secrets.