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 comprising:
- obtaining a computed message digest associated with the update file by the application by an update unit integrated into the aircraft of a cryptographic hash function to the update file,obtaining a reference message digest not stored on the aircraft, associated with the update file and acquired by a mobile terminal independent of the operation of the aircraft by secure access to a database separate from the aircraft and the mobile terminal, said database comprising the reference message digest, andprocessing the update file based on a comparison of the computed message digest with the reference message digest.
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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.
21 Citations
9 Claims
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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 comprising:
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obtaining a computed message digest associated with the update file by the application by an update unit integrated into the aircraft of a cryptographic hash function to the update file, obtaining a reference message digest not stored on the aircraft, associated with the update file and acquired by a mobile terminal independent of the operation of the aircraft by secure access to a database separate from the aircraft and the mobile terminal, said 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. - View Dependent Claims (2, 3, 4, 5, 6)
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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,
wherein the electronic processing device comprises a processor for processing the update file based on a comparison of: -
a computed message digest, associated with the update file, the computed message digest resulting from the application, by an update unit integrated into the aircraft, of a cryptographic hash function to the update file, with a reference message digest not stored on the aircraft associated with the update file, the reference message digest being acquired by a mobile terminal independent of the operation of the aircraft by secure access to a database separate from the aircraft and the mobile terminal, said database comprising the reference message digest; wherein the electronic processing device is configured to be integrated into a system for processing the update file, said system comprising the mobile terminal independent of the operation of the aircraft, the update unit integrated into the aircraft, and the database separate from the aircraft and the mobile terminal.
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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, said processing system comprising:
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a mobile terminal independent of the operation of the aircraft that is configured for obtaining a reference message digest not stored on the aircraft, 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, said database being separate from the aircraft and the mobile terminal, and an update unit integrated into the aircraft that is configured 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, wherein the mobile terminal, or the update unit, is configured for processing the update file based on a comparison of the computed message digest with the reference message digest. - View Dependent Claims (9)
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Specification