Secure Wireless Handover via Segmented Storage and Intermediary Authentication
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Solution Overview
Problem
Conventional short distance wireless communication methods, such as those using non-contact IC modules, lack sufficient security, particularly in storing communication information like Bluetooth BD addresses and link keys, making them vulnerable to piracy and alteration.
Innovation Solution
A communication system that employs a first wireless communication method, like NFC, for authentication and then switches to a second method, such as WLAN or Bluetooth, for secure data transfer, using a storage unit to store communication information in a way that reduces exposure to unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If communication information is stored in a storage unit accessible by non-contact IC module, then ease of operation is improved, but security deteriorates
Solution Approach 1:
The patent divides the storage function into two separate components: a non-contact IC module for convenient access and a secure storage unit with restricted access. The communication information is stored in the secure storage unit, which is only accessible through specific authentication processes, thereby preventing unauthorized access while maintaining ease of operation for authorized users.
Solution Approach 2:
The patent introduces an intermediary authentication mechanism between the non-contact IC module and the secure storage unit. This intermediary layer verifies the identity and authority of the access request before allowing retrieval of communication information, thus preventing direct unauthorized access while maintaining operational convenience for legitimate users.
2Ease of manufacture
If low-level security measure is used in non-contact IC module storage, then ease of manufacture is improved, but security deteriorates
Solution Approach 1:
The patent segments the storage system into a simple non-contact IC module for ease of manufacture and a secure storage unit with sophisticated security measures. This allows the secure storage unit to implement strong security without complicating the manufacturing of the entire system, as the secure unit can be integrated as a separate module.
Solution Approach 2:
The patent applies local quality by implementing strong security measures only in the secure storage unit where communication information is stored, while the non-contact IC module maintains simple manufacturing characteristics. This localized approach to security ensures high security for critical data without compromising the ease of manufacture of the overall system.
3Ease of operation
If arbitrary user can access storage unit via non-contact IC reader/writer, then ease of operation is improved, but security deteriorates
Solution Approach 1:
The patent introduces an intermediary authentication mechanism that stands between the non-contact IC reader/writer and the secure storage unit. This intermediary layer verifies the legitimacy of access requests, allowing authorized users to easily access their information while preventing arbitrary or unauthorized access, thus maintaining both ease of operation and security.
Solution Approach 2:
The patent implements a feedback mechanism where the secure storage unit responds to authentication requests from the non-contact IC module. The system provides feedback about authentication status, allowing authorized users to access information seamlessly while blocking unauthorized access attempts, thereby maintaining both ease of operation and security.
Data Source
AI summary
In a communication terminal, a transmission control unit transmits, by a first wireless communication method to the information processing apparatus, instruction for executing wireless communication by a second wireless communication method using communication information stored in the information processing apparatus. In an information processing apparatus, a storage unit stores the communication information. A communication unit executes wireless communication by the second wireless communication method using the communication information stored in the storage unit, in a case where the instruction is transmitted by the transmission control unit.