NFC Application Security via Physical Parameter Control
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Solution Overview
Problem
Mobile telephone devices equipped with Near Field Communications (NFC) interfaces lack effective security measures to enable or disable applications, making them susceptible to unauthorized access, as they cannot be shielded like RFID tags without disrupting network communication.
Innovation Solution
A telecommunications chip card with a processor and memory stores applications and an application management program that uses physical parameter data, such as location and time, to control the activation or deactivation of NFC applications, requiring cryptographic certificates or keys for addition or removal, enhancing security by ensuring applications are only active when appropriate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If NFC applications are always active on mobile devices, then communication functionality is maintained, but security is compromised due to unauthorized access risks
Solution Approach 1:
The system automatically manages application activation and deactivation based on physical parameters without requiring manual user intervention. The mobile device autonomously evaluates location, time, and other physical data to determine which NFC applications should be active, eliminating the need for users to manually control each application's security state.
Solution Approach 2:
The system continuously monitors physical parameter data and uses this feedback to dynamically adjust application activation status. By constantly evaluating current location, time, and environmental conditions, the system adapts its security posture in real-time, activating applications only when physical conditions warrant their use.
2Reliability
If NFC applications are disabled for security, then unauthorized access is prevented, but legitimate communication functionality is lost
Solution Approach 1:
The system dynamically adjusts application activation status based on changing physical conditions rather than maintaining a static enabled/disabled state. Applications are activated when physical parameters indicate legitimate use cases and deactivated when security risks are detected, allowing the system to adapt its security and functionality in real-time.
Solution Approach 2:
The system uses changes in physical parameter values (location, time, environmental conditions) as triggers for application activation and deactivation. By monitoring parameter thresholds and changes, the system intelligently transitions between secure and functional states based on actual operating conditions.
3Ease of operation
If applications are stored on mobile device memory, then ease of access is improved, but security control is reduced compared to dedicated RFID tags
Solution Approach 1:
The system segments NFC applications into multiple isolated profiles stored in secure memory regions, with each profile having controlled access permissions. This segmentation allows the system to manage multiple applications while maintaining security through isolated storage and selective activation based on physical parameters.
Data Source
AI summary
A telecommunications chip card (100) for enabling the login of a mobile telephone device (202) into a digital cellular mobile telecommunications network (200), the telecommunications chip card comprising:a chip card reader interface (102) adapted for allowing communications between the telecommunications chip card and the mobile telephone device, wherein the chip card reader interface is adapted for receiving physical parameter data (112, 118, 120, 224) via the chip card reader interface;a processor (104);a memory (106) for storing applications for execution by the processor;an application (108) stored in the memory comprising machine readable instructions executable by the processor; andan application management program (110) stored in the memory comprising machine readable instructions executable by the processor, wherein the applications management program enables or disables the application depending on at least the physical parameter data.