How to manage secure conections with multiple peripherals from a central in nRF connect SDK?

RE: How to manage secure conections with multiple peripherals from a central in nRF connect SDK?

Kenneth — Wed, 29 Nov 2023 14:33:40 GMT

It's up to you which side you call bt_conn_set_security().

Kenneth

RE: How to manage secure conections with multiple peripherals from a central in nRF connect SDK?

alemarque — Wed, 29 Nov 2023 12:06:10 GMT

Ok, Thank you.

As I can see, this sample seems to be made for a peripheral. It would be usefull for a central too?

Regards

RE: How to manage secure conections with multiple peripherals from a central in nRF connect SDK?

Kenneth — Wed, 29 Nov 2023 10:17:53 GMT

Try:

Kenneth

RE: How to manage secure conections with multiple peripherals from a central in nRF connect SDK?

alemarque — Tue, 28 Nov 2023 14:44:50 GMT

Hello,

Thank you for your suggestion and sorry for the delay.

I was looking from the samples included with the nRF connect SDK but Sadly I can't find any sample with BT_SECURITY_L4.

If you could show me any sample or where to find it, I would appreciate it.

Thank you!

RE: How to manage secure conections with multiple peripherals from a central in nRF connect SDK?

Kenneth — Mon, 20 Nov 2023 14:04:08 GMT

Hello,

Look for central BT examples with the following: bt_conn_set_security(conn, BT_SECURITY_L4). From the documentaiton you can find:

/** Security level. */
typedef enum __packed {
	/** Level 0: Only for BR/EDR special cases, like SDP */
	BT_SECURITY_L0,
	/** Level 1: No encryption and no authentication. */
	BT_SECURITY_L1,
	/** Level 2: Encryption and no authentication (no MITM). */
	BT_SECURITY_L2,
	/** Level 3: Encryption and authentication (MITM). */
	BT_SECURITY_L3,
	/** Level 4: Authenticated Secure Connections and 128-bit key. */
	BT_SECURITY_L4,
	/** Bit to force new pairing procedure, bit-wise OR with requested
	 *  security level.
	 */
	BT_SECURITY_FORCE_PAIR = BIT(7),
} bt_security_t;

Kenneth