Wireless Device Secret Deletion Mechanism
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Solution Overview
Problem
Wireless communication systems are insecure and vulnerable to attacks, especially when secrets used for encryption are stored transparently in devices without adequate protection, risking exposure if the device is stolen or compromised.
Innovation Solution
Implementing a mechanism to periodically delete secrets stored transparently in devices, such as smart card readers, based on predefined conditions like timeout, inactivity, loss of connection, signal strength, or number of transactions, to minimize exposure and require re-establishment of secure communication links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If secrets are stored transparently in devices without protection, then ease of operation is improved, but security is worsened
Solution Approach 1:
The patent implements periodic deletion of secrets based on predefined conditions such as timeout periods, inactivity detection, loss of connection, signal strength thresholds, or number of transactions. This periodic action ensures that secrets are automatically removed after serving their purpose, maintaining security while allowing transparent storage during active use.
2Reliability
If secrets are deleted frequently, then security is improved, but loss of time is worsened
Solution Approach 1:
The patent employs dynamic deletion conditions that adapt to actual usage patterns. Instead of fixed periodic deletion, the system monitors multiple parameters (timeout, inactivity, connection status, signal strength, transaction count) and deletes secrets based on the first condition that is met. This dynamic approach minimizes unnecessary deletions and re-establishment operations, reducing time loss while maintaining security.
Data Source
AI summary
A system includes a first wireless-enabled device that transparently stores confidential information and a second wireless-enabled device that stores the same confidential information. The confidential information is to be used to secure a wireless communication link between the first device and the second device. One or both of the first device and the second device is to delete the confidential information upon fulfillment of one or more conditions related to the communication link.