NFC Tag Authentication for Mobile Device Security
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Solution Overview
Problem
Conventional authentication methods for mobile computing devices are not fully secure and can be time-consuming, as they often rely on observable processes or require carrying additional tokens for one-time passwords, which are inconvenient.
Innovation Solution
Implementing near field communication (NFC) technology by attaching an NFC tag to a commonly carried or worn object, allowing the mobile device to wirelessly retrieve a tag identifier for secure authentication without additional input, using a password as the initial access step.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional username and password authentication is used, then the authentication process is simple to implement, but security is compromised because passersby can observe and repeat the authentication process
Solution Approach 1:
The patent combines multiple authentication factors (password, NFC tag, biometric data) into a unified authentication system. The NFC tag is integrated with the mobile device and works in conjunction with the password and biometric sensors, creating a multi-layered security approach that enhances reliability while maintaining user convenience through automated processing.
Solution Approach 2:
The NFC tag acts as an intermediary element that bridges the user and the authentication system. Instead of directly comparing passwords, the system uses the NFC tag as a mediator to verify device ownership and initiate the authentication process, adding a security layer without significantly increasing user burden.
2Reliability
If one-time passwords are used to improve security, then authentication security is enhanced, but convenience deteriorates because users must carry additional tokens and manually enter passwords
Solution Approach 1:
The system enables self-service authentication where the mobile device automatically performs the authentication steps without requiring manual token handling. The NFC tag is pre-configured on the user's device, and the authentication process is automatically initiated when the device is brought near the access point, eliminating the need for users to manually enter one-time passwords or handle separate tokens.
Solution Approach 2:
The mobile device serves multiple functions: it contains the NFC tag for identification, stores biometric data for verification, and communicates with the authentication server. This multi-functionality consolidates what would traditionally require separate devices (password token, biometric scanner) into a single universal device that the user already carries.
3Reliability
If manual password entry is required for authentication, then security is maintained through user input verification, but time consumption increases especially for urgent access needs
Solution Approach 1:
The system performs preliminary authentication actions by pre-configuring the NFC tag with unique identifiers and pre-storing biometric templates in the secure element of the mobile device. When authentication is needed, these pre-prepared elements are quickly verified without requiring time-consuming manual input, enabling rapid authentication while maintaining security through the preliminary setup of cryptographic credentials.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Provides a secure and convenient authentication process by leveraging NFC tags embedded in everyday objects, enhancing security while reducing the time required for access, as the device can be unlocked if the retrieved tag identifier matches the stored one.
Implementation Method 1
An NFC reader of the mobile computing device senses the NFC tag and wirelessly retrieves a tag identifier from the tag
Data Source
AI summary
A user is authenticated to a mobile computing device using an NFC tag. The NFC tag may be initially associated when an NFC reader of the device senses the NFC tag and wirelessly retrieves a tag identifier from the tag. The tag identifier is stored for subsequent retrieval. The authentication process begins after receiving a valid password and then positioning the device proximate the object such that the NFC reader of the device retrieves the tag identifier from the NFC tag without receiving input at the mobile computing device. In the event that the retrieved tag identifier matches the stored tag identifier, the mobile computing device is unlocked and the user may access the mobile computing device. If the retrieved tag identifier does not match the stored tag identifier, the user is not authenticated and the mobile computing device remains locked.