Aircraft Ground Communication Security Level Management
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Solution Overview
Problem
Existing secure communication protocols between aircraft and ground bases, such as ACARS and ATN, become complex and costly due to the need for cryptographic key exchanges, leading to increased costs for airlines and potential security risks if the receiver cannot validate the security level of incoming messages.
Innovation Solution
A method and device that utilize a correspondence table to determine and enforce the appropriate security level for each type of information exchanged, allowing flexible and organized security settings based on the communication system's characteristics and user preferences, ensuring secure and efficient message transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If secure communication protocols (ACARS, ATN) are used to exchange messages between aircraft and ground base, then communication security is improved, but protocol complexity and implementation costs increase
Solution Approach 1:
The patent segments the security management into two parts: a correspondence table that pre-defines security levels for different message types, and a validation mechanism that checks received messages against this table. This segmentation avoids the need for complex real-time cryptographic key exchanges while maintaining security, as the correspondence table provides a simplified lookup approach instead of full protocol implementation.
2Reliability
If secure communication protocols are implemented, then communication security is improved, but implementation costs and service provider charges increase
Solution Approach 1:
The patent uses a lightweight correspondence table structure that can be easily stored and processed without requiring expensive cryptographic infrastructure. The table acts as a simple, disposable reference that replaces complex security protocols, significantly reducing implementation costs while maintaining adequate security validation for message exchanges.
3Adaptability or versatility
If the sender chooses a particular security level for a message, then security control is improved, but the recipient cannot validly consider the message without knowing its security level
Solution Approach 1:
The patent incorporates feedback by requiring the recipient to validate received messages against the correspondence table. The validation process provides feedback on whether the message's security level matches the expected level for its type, ensuring that messages are only processed when appropriate security measures were applied during transmission.
4Adaptability or versatility
If flexible security settings are applied to different message types, then security adaptability is improved, but complexity in managing security levels increases
Solution Approach 1:
The correspondence table serves as a universal structure that handles security level assignment for all message types in a standardized manner. This multi-functional table can store and retrieve security level information for any message type, providing flexible security management without requiring separate complex mechanisms for each message category.
Data Source
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Figure 2
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AI summary
A method for emitting a message relating to a determined type of information to be exchanged between an aircraft and a ground base reception method, and corresponding devices. The method determines a level of a securement associated with the determined type by a correspondence table, and emits the message according to a protocol having the determined level of securement.