Be able to have a pairing BLE connexion with fixed password/passkey

[Piwy]

Hi,

I would like to make it mandatory to enter a password whenever you want to connect to my peripheral device nrf52840.

I use NCS 2.4.2.

First of all i want to succed connexion with a password when i try connexion with my phone and after i will need to implement also a central device nrf52840.

I don't find any example to succed this secure connexion, can you help me ?

Best regards,

Pierre-yves

[Susheel Nuguru]

It seems like you might be looking for a static password as mentioned in the linked thread enabling CONFIG_BT_FIXED_PASSKEY.

[Piwy]

Ty, it's help me to set up a peripheral, when i try to connect with my phone there is a request and if the code is wrong, i disconnect.I needed to add bt_conn_set_security(conn,BT_SECURITY_L4); to have the request...

But i don't have the request with another device nrf52840. i use bluetooth shell sample with the command connect and i can connect like if there was no request.

Then how to have the request on all device to force code pin connexion ?

Also with a phone, if there apossibility to refuse pairing request and connect ?

[Piwy]

Hi, is there new idea about my issue ?

[Susheel Nuguru]

No, I do not have an idea about the issue.

Piwy said:

Then how to have the request on all device to force code pin connexion ?

This topic has been discussed a lot on how to have a connection only with passcode. Please check if one of the discussions helps here.  Very Similar request like yours can be found here