ENTITY-IDENTITY BASED SECURITY PROCUREMENT OF COMPUTER FILES THAT ARE DOWNLOADABLE TO AN AIRCRAFT, METHOD OF AUTHENTICATION, AND ASSOCIATED SYSTEM AND AIRCRAFT

摘要

The present invention relates in general to the security of computer files installed on board an aircraft and in particular to the mechanisms with which the authenticity thereof, or in other words the origin and integrity, can be guaranteed.;According to one embodiment of the invention, a method for processing an operating computer file (100) of an equipment item installed on board an aircraft (110), especially for ensuring the security thereof, the method comprising the digital signature of the said computer file by means of a least one first private key (124, 124′), the said first private key being generated according to a scheme based on the identity (122, 122′) of a first entity (120, 120′).;The method may also comprise the multiple signature of data and/or the generation of composite private keys from a plurality of dedicated key generating centers.;The invention is also aimed at a system and a corresponding method for authentication as well as an aircraft equipped with such a system.;The invention is applicable to commercial and private civil aviation.