I am working with bluetooth low energy at esp32 and I want to put some security in my device, but my device has no display or keyboard, looking into BLE protocol and I found that in this case, the authentication must be in Just Works mode, in other words, this mode just put zero as passkey and do the connection and I have no security.
Somebody already works with ble authentication in case that the device has no display or keyboard? is just this mode (Just Works) that I can apply in this situation?
BLE Authentication
Re: BLE Authentication
Since the ESP32 has flash memory, you could make it such that when the ESP32 with BLE boots for the first time, it will accept connections from anyone. When you then connect your desired device, it could remember the address of that device and only allow connections from it in the future.
Free book on ESP32 available here: https://leanpub.com/kolban-ESP32
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