Image-Based Data Sharing for Secure Credential Exchange
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Solution Overview
Problem
Current methods for sharing data between electronic devices, such as Wi-Fi credentials, are inefficient and time-consuming, particularly when multiple users need to access a shared service, as they require manual intervention and battery consumption.
Innovation Solution
A method involving image-based data sharing where a publisher device and customer devices in proximity exchange data through short-range wireless connections, using hash codes of images of their surroundings to authenticate and authorize access, ensuring secure and efficient data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If QR code sharing method is used, then data can be shared between devices, but the process becomes time-consuming and battery power is consumed
Solution Approach 1:
The patent replaces the manual mechanical process of physically passing devices or sequentially scanning QR codes with an automated optical recognition system. The publisher device captures an image of the customer device's display, automatically extracts and verifies credentials through image processing, eliminating the need for manual intervention and sequential device handling.
Solution Approach 2:
The patent creates a visual copy (screenshot or image capture) of the credentials displayed on the customer device. This copy is then processed by the publisher device's image recognition system to extract and verify the credentials, replacing the need for direct device-to-device data transfer or manual entry.
2Ease of operation
If QR code sharing method is used, then data can be shared between devices, but battery power of the provider device is consumed
Solution Approach 1:
Instead of maintaining a continuously active screen and processing system, the publisher device only activates its camera and image processing capabilities when a credential sharing event is initiated. The system enters a low-power state between sharing events, significantly reducing battery consumption while maintaining readiness to share credentials when needed.
Solution Approach 2:
The customer device displays the credentials autonomously, and the publisher device's image recognition system automatically captures and processes the visual information without requiring the publisher to manually input or transfer data. This automated self-service approach reduces the computational burden and power consumption on the publisher device.
3Reliability
If manual credential sharing is used, then security can be maintained, but the process becomes laborious and time-consuming
Solution Approach 1:
The patent replaces manual credential verification with automated image recognition and optical character recognition systems. The publisher device captures an image of the credentials displayed on the customer device, automatically extracts the credential information, and verifies its validity through algorithmic processing, maintaining security while eliminating manual labor.
Solution Approach 2:
The system implements automated feedback loops where the publisher device's image recognition system continuously monitors and verifies the credentials captured from the customer device. The system provides automatic confirmation of successful credential extraction and verification, ensuring security requirements are met while streamlining the sharing process.
4Adaptability or versatility
If chat group method is used, then credentials can be shared with multiple users, but an application must be installed and configured by all members
Solution Approach 1:
The patent creates a universal credential sharing system that works across different device types and operating systems without requiring installation of specialized applications. The publisher device uses standard camera and image processing capabilities to capture and verify credentials from any customer device displaying them, making the system universally applicable without adding complexity to individual devices.
Solution Approach 2:
The patent introduces an intermediary visual medium (the displayed credentials on the customer device screen) that serves as a universal interface between different devices. Instead of requiring direct device-to-device communication through a specific application, the credentials are transmitted visually through the display medium, which any device with a screen can provide, eliminating the need for specialized software installation.
Data Source
AI summary
A method of sharing data between a publisher device and at least one customer device, the method including the steps, performed by a processing unit of the publisher device, of: a) receiving, from a customer device, a request for obtaining the data from the publisher device, the request including customer image data related to a customer image of a given scene; b) determining a similarity score between the customer image data and publisher image data related to a publisher image stored in the publisher device; and c) depending on the similarity score, sending the data to the customer device.