Fired when the client presents its credentials to the server.
func onSSLClientAuthentication(connectionId: Int32, certEncoded: Data, certSubject: String, certIssuer: String, status: String, accept: inout Bool)
This is where the server can decide whether to continue or not. The Accept parameter is a recommendation on whether to continue or close the connection. This is just a suggestion: application software must use its own logic to determine whether to continue or not.
When Accept is False, Status shows why the verification failed (otherwise, Status contains the string "OK").