ble_sm_incr_peer_sign_counter() function
API to be used to increment the sign-counter whenever the CSRK is used to authenticate a received signed message.
Syntax
int ble_sm_incr_peer_sign_counter(uint16_t conn_handle); Arguments
conn_handle
The connection_handle of the peer from whom the signed message is received, and with whom the CSRK was shared that was used to authenticate the signed message.