Transient Secondary Identifier for Secure Device Bootstrap
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Solution Overview
Problem
Wireless devices face security issues when ownership is transferred, as the unique identifier remains unchanged, leading to potential exploitation of previously established secure relationships.
Innovation Solution
A wireless device generates a secondary identifier upon initialization or reset, using identifier logic to replace the primary identifier for secure communications, ensuring the primary identifier remains secure and transient, preventing exposure during ownership changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a unique identifier is used to establish secure relationships between devices, then secure communications can be established, but security vulnerabilities arise when device ownership is transferred
Solution Approach 1:
The identifier system is segmented into two distinct components: a permanent primary identifier (e.g., MAC address) that remains with the device, and a transient secondary identifier that can be reassigned. This segmentation allows the system to maintain secure relationships using the secondary identifier while the primary identifier remains protected and unchanged during ownership transfers.
Solution Approach 2:
The secondary identifier is made dynamic and changeable, allowing it to be reset or reassigned when device ownership transfers. This dynamic property enables the system to adapt to new ownership while maintaining security, as the previous owner cannot exploit the old secondary identifier after it has been changed.
2Ease of operation
If the primary identifier is used for all communications, then device identification is simple, but the primary identifier becomes exposed and vulnerable to unauthorized access
Solution Approach 1:
A secondary identifier acts as an intermediary between the device's primary identifier and external communications. The secondary identifier shields the primary identifier from exposure during normal operations, allowing devices to communicate securely without revealing the permanent primary identifier that could be exploited if compromised.
3Reliability
If a secondary identifier is generated for each ownership transfer, then security is maintained, but the complexity of identifier management increases
Solution Approach 1:
The system implements self-service mechanisms where the device automatically generates new secondary identifiers when needed, and the association between identifiers is automatically updated. This reduces manual intervention and simplifies the management complexity, as the system handles identifier rotation autonomously based on ownership transfer events.
Data Source
AI summary
Systems, methods, and other embodiments associated with generating transient identifiers are described. According to one embodiment, an apparatus includes a memory device that stores a primary identifier that is unique to the apparatus. The primary identifier correlates with a displayed identifier of the apparatus that is used by a remote device to initiate communications with the apparatus. The apparatus includes identifier logic configured to generate a secondary identifier in response to receiving an association request that includes the displayed identifier when the apparatus is in a bootstrap mode. The bootstrap mode is a state of the apparatus when the apparatus is initializing and will accept a new association. The association request is a wireless communication that initiates establishing secure communications. The apparatus includes communication logic configured to establish secure wireless communications with the remote device by causing the remote device to identify the apparatus using the secondary identifier.