Wearable Device Authentication via Sensor Signal Detection
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Solution Overview
Problem
The existing authentication methods for online services are inconvenient as they require multiple login credentials for different accounts, leading to a need for a secure and convenient authentication solution.
Innovation Solution
A wearable device equipped with sensors such as optical, pressure, or temperature sensors that detect when the device is worn by the user, sending a unique signal for authentication, allowing the user device to automatically authenticate the user without requiring credentials as long as the wearable device is in use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional authentication methods using login credentials are used, then security can be maintained, but convenience deteriorates due to requiring multiple credentials for different accounts
Solution Approach 1:
The wearable device serves as an intermediary authentication tool between the user and the online service. Instead of directly entering credentials, the user wears the device which automatically communicates with the service provider to verify identity, simplifying the authentication process while maintaining security
Solution Approach 2:
The wearable device performs authentication automatically without requiring user intervention to enter credentials. The device self-activates upon detection of wearing status and autonomously communicates authentication data to the service, eliminating the need for manual credential input
2Ease of operation
If automatic authentication via wearable device is implemented, then convenience is improved by eliminating credential entry, but security may worsen if the device is lost or stolen
Solution Approach 1:
The system performs preliminary registration of the wearable device with the service provider before actual use. During this setup phase, the service provider stores authentication data associated with the device, enabling automatic authentication while maintaining security through pre-established trust relationships
Solution Approach 2:
The authentication system dynamically adjusts its behavior based on device status. When the wearable device is detected as being worn, automatic authentication is enabled; when not worn or potentially compromised, the system can require additional verification or revoke access, making the security model adaptive rather than static
3Ease of operation
If the wearable device continuously sends authentication signals, then authentication convenience is improved, but energy consumption increases
Solution Approach 1:
Instead of continuous signal transmission, the wearable device sends authentication signals periodically or on-demand. The device activates signal transmission when it detects it is being worn and when authentication is needed, rather than continuously broadcasting, thereby reducing energy consumption while maintaining authentication functionality
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 method by eliminating the need for multiple login credentials, ensuring seamless access to accounts as long as the wearable device is worn by the user, while enhancing security by requiring re-authentication when the device is removed.
Implementation Method 1
the sensor may be an optical sensor configured to detect ambient light level. When the wearable device is worn by the user, the optical sensor may be covered by a body part of the user and may not receive light. When the wearable device is taken off from the user, the optical sensor may be exposed and may receive light.
Implementation Method 2
The sensor may be a temperature sensor configured to detect a temperature. For example, the temperature sensor may detect a body temperature of the user when the wearable device is worn by the user and may detect ambient temperature of the user when the wearable device is taken off from the user.
Implementation Method 3
the wearable device may send a signal, such as a short range wireless signal, Bluetooth Low Energy or the like, to the user device
Data Source
AI summary
A wearable device is used to authenticate a user into a user account at a user device of the user. In particular, the wearable device may include a sensor configured to detect whether the wearable device is worn by or is with the user. If so, the wearable device may send a signal to the user device and the user device may authenticate the user based on the signal received from the wearable device. For example, when the sensor detects that the wearable device is worn by the user, the wearable device may send a unique signal periodically, such as every five seconds or every 10 seconds. Based on whether the unique signal from the wearable device is received, the user device may authenticate the user.