IEEE/ICACT20230058 Slide.09        [Big Slide]       [YouTube] Oral Presentation
The second is Device to Device, in which devices verify each other's trustworthiness by authenticating each other. The pros of this method are that it saves resources and cuts down on latency, but the cons are that each device has to be authenticated, and if there are n devices, each device will have to go through n combinations of two authentications.

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