what the min/max key size for?

[bernerd]

HI,ALL

as i known, the BLE key is a six digit pin.

and in the static void device_manager_init(bool erase_bonds) ,the statement shows below:

register_param.sec_param.min_key_size = SEC_PARAM_MIN_KEY_SIZE;

register_param.sec_param.max_key_size = SEC_PARAM_MAX_KEY_SIZE;

#define SEC_PARAM_MIN_KEY_SIZE 7
#define SEC_PARAM_MAX_KEY_SIZE 16

what the two pataments for?

BR

Bernerd

[RK]

That has nothing to do with the length of the BLE pin.

They declare the maximum and minimum encryption key sizes (all documented as usual in the softdevice documentation)

[bernerd]

thank you very much!! is the encryption used in the data in the air?