The method of clinical critical of a system according to the avionics embarked on board a 371.

摘要

A data security system for securing the critical data of an on-board airplane avionics system comprising access control means for controlling access to the said data on the basis of the security related information of a user, wherein the security related information is selected from the group consisting of: a list of authorised users; a maximum number of allowed accesses, as well as the types of allowed accesses; a time window allowed for access; a series/concatenation allowed for access, by various different users; and a hierarchical prioritisation of the zones associated with the data storage means.