Security related events clarify

[daoms]

From SDK we can see that there is a lot of events about security. I've read some of them by comments and still a little confused about the difference of them.

Could anyone can explain a bit about them from the central side and peripheral side？

BLE_GAP_EVT_SEC_PARAMS_REQUEST

BLE_GAP_EVT_SEC_INFO_REQUEST

BLE_GAP_EVT_SEC_REQUEST

BLE_GAP_EVT_CONN_SEC_UPDATE

PM_EVT_CONN_SEC_CONFIG_REQ

PM_EVT_CONN_SEC_PARAMS_REQ

[Kenneth]

There are message sequence charts that show what will trigger these events;
https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s132.api.v7.2.0/group___b_l_e___g_a_p___m_s_c.html

Kenneth