AIRCRAFT INFORMATION VERIFICATION IN RESPONSE TO COMPROMISED DIGITAL CERTIFICATE Russian patent published in 2017 - IPC G06F21/57 G06F21/64 H04L9/32 

FIELD: aviation.

SUBSTANCE: method of the data verification for use in the aircraft is disclosed. According to this method: one receives a great number of digital certificates that are related to the mentioned data the by virtue of the processing unit; one verifies for every digital certificate from the noted digital certificates quantity that the side, which issued the digital certificate, is on the admissible certification authority list in the processing system on the aircraft board; one determines by virtue of the processing unit if the certificate from the noted digital certificates quantity is compromised; one exercises the choice of the selected amount from the noted digital certificates quantity by virtue of the processing unit in reaction to the determination of the fact that the mentioned certificate from the noted digital certificates quantity is compromised. One determines the selected amount with reference to the quorum principle, which is selected from the quorum principles on the ground of the number of the aircraft systems, where the noted data will be used, and on the ground of the aircraft location at the data loading moment; and one verifies the noted data by virtue of the processing unit for use in the aircraft with the use of the noted selected amount and the noted digital certificates quantity. The data verification for use in the aircraft, during which the selected amount from the noted digital certificates quantity is used, comprises the determination if at least the set number of the amount, selected from the noted digital certificates quantity, is valid; and one determines the set number with reference to the quorum principle, which is composed of one or more of the following: the quorum principles for the aircraft operator; the quorum principles for the provider of the aircraft maintenance operation; the quorum principles for the aircraft type; the quorum principles for the aircraft system, where the noted data will be used; the quorum principles for the number of the aircraft systems, where the noted data will be used; and the quorum principles, which is used when it is known or there is a suspicion that the certification authority is compromised.

EFFECT: enhancement of flight safety.

10 cl, 8 dwg