METHOD FOR PROCESSING AN UPDATE FILE OF AN AVIONIC EQUIPMENT OF AN AIRCRAFT, A COMPUTER PROGRAM PRODUCT, RELATED PROCESSING ELECTRONIC DEVICE AND PROCESSING SYSTEM
First Claim
1. A method for processing an update file of at least one set of computer data of a piece of avionics equipment of an aircraft, the processing method being implemented within a processing system comprising a mobile terminal independent of the aircraft, an update unit integrated into the aircraft, and a database separate from the aircraft and the mobile terminal, the processing method comprising:
- obtaining a computed message digest, associated with the update file, the computed message digest resulting from the application, by the update unit, of a cryptographic hash function to the update file,obtaining a reference message digest, associated with the update file, the reference message digest being acquired by the mobile terminal by secure access to a database comprising the reference message digest,processing the update file based on a comparison of the computed message digest with the reference message digest.
1 Assignment
0 Petitions
Accused Products
Abstract
This method makes it possible to validate an update file of at least one set of computer data of a piece of avionics equipment of an aircraft. The processing method is implemented within a processing system comprising a mobile terminal independent of the aircraft, an update unit integrated into the aircraft, and a database separate from the aircraft and the mobile terminal, and comprises obtaining a computed message digest, the computed message digest resulting from the application, by the update unit, of a cryptographic hash function to the update file, obtaining a reference message digest, the reference message digest being acquired by the mobile terminal by secure access to a database comprising the reference message digest, and processing the update file based on a comparison of the computed message digest with the reference message digest.
-
Citations
9 Claims
-
1. A method for processing an update file of at least one set of computer data of a piece of avionics equipment of an aircraft, the processing method being implemented within a processing system comprising a mobile terminal independent of the aircraft, an update unit integrated into the aircraft, and a database separate from the aircraft and the mobile terminal, the processing method comprising:
-
obtaining a computed message digest, associated with the update file, the computed message digest resulting from the application, by the update unit, of a cryptographic hash function to the update file, obtaining a reference message digest, associated with the update file, the reference message digest being acquired by the mobile terminal by secure access to a database comprising the reference message digest, processing the update file based on a comparison of the computed message digest with the reference message digest. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. An electronic device for processing an update file of at least one set of computer data of a piece of avionics equipment of an aircraft, the electronic processing device being configured to be integrated into a system for processing an update file, the processing system comprising a mobile terminal independent of the aircraft, an update unit integrated into the aircraft, and a database separate from the aircraft and the mobile terminal, wherein the electronic processing device comprises:
-
a module for obtaining a computed message digest, associated with the update file, the computed message digest resulting from the application, by the update unit, of a cryptographic hash function to the update file, a module for obtaining a reference message digest, associated with the update file, the reference message digest being acquired by the mobile terminal by secure access to a database comprising the reference message digest, a module for processing the update file based on a comparison of the computed message digest with the reference message digest.
-
-
8. A system for processing an update file of at least one set of computer data of a piece of avionics equipment of an aircraft, the processing system comprising a mobile terminal independent of the aircraft, an update unit integrated into the aircraft, and a database separate from the aircraft and the mobile terminal, wherein:
-
the mobile terminal comprises at least one module for obtaining a reference message digest, associated with the update file, the reference message digest being acquired by the mobile terminal by secure access to a database comprising the reference message digest, the update unit comprises at least one module for obtaining a computed message digest, associated with the update file, the computed message digest resulting from the application, by the update unit, of a cryptographic hash function to the update file, and the mobile terminal, or the update unit, comprises a module for processing the update file based on a comparison of the computed message digest with the reference message digest. - View Dependent Claims (9)
-
Specification