Bump Validation for Secure Device Pairing
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Solution Overview
Problem
Current methods for exchanging information between portable electronic devices, such as cell phones, are cumbersome and lack robust validation to ensure information is transferred only when intended and to the correct recipient.
Innovation Solution
A system that uses status reports from devices to a server to determine if two devices are at the same location and time, with bump validation processes to confirm valid connections, including position and time validation, and optional user approval, ensuring secure and intended information transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual methods are used to exchange information between devices, then information can be transferred, but the process is tedious and time-consuming
Solution Approach 1:
The patent replaces manual mechanical operations (typing, navigating menus, addressing) with automated electronic systems. Devices automatically detect proximity through sensors, establish connections via protocols, and transfer data without user intervention, transforming a manual mechanical process into an automated electronic one.
Solution Approach 2:
The system performs preliminary actions by pre-establishing device discovery mechanisms and connection protocols before actual data transfer. Devices continuously broadcast their presence and capabilities, so when two devices meet, the connection framework is already in place, eliminating the need for manual setup during the transfer moment.
2Productivity
If automatic connection methods are implemented, then information exchange becomes faster, but validation of intended transfer is compromised
Solution Approach 1:
The patent implements feedback mechanisms where devices exchange validation data (timestamps, location information, device identifiers) during the connection process. The system receives feedback about the connection state and uses this information to verify whether the transfer was intended, allowing automated speed with reliability validation.
Solution Approach 2:
The system performs partial validation actions automatically (checking timestamps, locations) without requiring full manual confirmation. This partial automation provides sufficient validation for most cases while maintaining fast transfer speeds, applying excessive validation only when needed based on the situation.
3Reliability
If robust validation processes are added to ensure secure transfer, then reliability improves, but system complexity increases
Solution Approach 1:
The patent makes the device's communication system universal by combining multiple functions into a single integrated mechanism. The same sensors, processors, and protocols used for basic connection establishment are also used for validation, eliminating the need for separate complex validation hardware and reducing overall system complexity.
Solution Approach 2:
The validation system is self-service in that devices automatically perform validation checks on each other using their own capabilities (sensors, clocks, location data) without requiring external validation infrastructure. Each device serves its own validation needs, reducing system complexity while maintaining security.
4Measurement precision
If multiple validation checks are performed, then transfer accuracy improves, but processing time increases
Solution Approach 1:
The system applies partial validation actions by performing only the necessary checks based on the situation. For high-confidence scenarios (clear proximity, matching timestamps), minimal validation is applied. For ambiguous cases, additional checks are performed, avoiding excessive processing time for routine transfers while maintaining accuracy when needed.
Solution Approach 2:
Validation data (timestamps, location information) is collected preliminarily during the connection establishment phase, before the actual transfer decision. This preliminary collection means validation checks can be performed quickly during the transfer process rather than adding significant processing time afterward.
Data Source
AI summary
A “bump” occurs when two devices at the same place at the same time indicate their intention to establish a connection for transferring information. A process for validating bumps is described.