How to require a passkey for Notify?

h2zero / NimBLE-Arduino

A fork of the NimBLE library structured for compilation with Arduino, for use with ESP32, nRF5x.

https://h2zero.github.io/NimBLE-Arduino/

Apache License 2.0

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Closed trullock closed 8 months ago

trullock commented 8 months ago

I have a server which sends out notifications.

I want only trusted clients to be able to connect (mac unknown) so wish to protect the connection with a passkey/pin.

I can't get nrfConnect to ask for a passkey without adding READ_ENC to my characteristic.

Does adding READ_ENC imply that clients can Read?

Am I misunderstanding the API, is this a missing feature, or am I not understanding the BT standard. Must you be able to read in order to notify?

Thanks

h2zero commented 8 months ago

To require all connections to be secure you can call NimBLEDevice::startSecurity in the onConnect callback. Something like this : https://github.com/h2zero/NimBLE-Arduino/issues/92#issuecomment-720788573

trullock commented 8 months ago

Great, thanks for your help