Hearing Device Authentication Logging for Security and Speed
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Solution Overview
Problem
Hearing devices face security challenges due to their limited computational power and memory, making them vulnerable to unauthorized data changes and attacks, which can lead to malfunctions or battery exhaustion, and existing security algorithms are not readily functional on these devices.
Innovation Solution
A hearing device with a processing unit, memory unit, and interface that logs client device identifiers for faster and simplified authentication and key derivation, using encrypted client device certificates and common secrets stored in memory to enhance security and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hearing device uses open standard-based wireless communication interface, then communication versatility and ease of operation are improved, but security and reliability deteriorate due to vulnerability to unauthorized access and attacks
Solution Approach 1:
The patent implements preliminary action by performing authentication and key derivation before actual data transmission. The hearing device derives security keys from authenticated data received from client devices, establishing secure communication parameters in advance. This preliminary security setup prevents unauthorized access while maintaining open communication standards, resolving the contradiction between communication versatility and security.
2Reliability
If advanced security algorithms and protocols are implemented in a hearing device, then security and reliability are improved, but device complexity and computational requirements increase beyond the capabilities of small hearing devices
Solution Approach 1:
The patent applies the extraction principle by removing complex computational security operations from the hearing device and relocating them to the client device. The hearing device only needs to store and process derived security keys, while the computationally intensive authentication and key derivation operations are performed by the more powerful client devices. This extraction of computational burden maintains strong security while respecting the limited processing capabilities of hearing devices.
3Reliability
If authentication and key derivation are performed for each new client device connection, then security is maintained, but authentication time and processing overhead increase
Solution Approach 1:
The patent implements preliminary action by pre-authenticating client devices and deriving their security keys in advance during the initial connection. The hearing device stores these pre-derived keys associated with each authenticated client device. When the same client device reconnects, the hearing device can quickly retrieve the stored key instead of performing full authentication again, significantly reducing authentication time while maintaining security through the use of pre-established trusted relationships.
Data Source
AI summary
A hearing device includes: a processing unit configured to compensate for hearing loss of a user of the hearing device; a memory unit; and an interface; wherein the hearing device is configured to: receive an authentication message from a client device via the interface, derive a client device identifier from the authentication message, and store the client device identifier in the memory unit.