Terminal Device Authentication Using Sensor Data
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Solution Overview
Problem
Existing methods for authenticating terminal devices in communication networks often require complex configurations, pre-shared secrets, and public key infrastructures, which can be insecure and inconvenient, especially for residential users without Internet access.
Innovation Solution
A method that authenticates terminal devices without pre-configured secrets or complex algorithms, using symmetrical or asymmetrical key generation and sensor-based interactions to establish a secure connection, leveraging existing secure connections and user interactions to ensure legitimacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional authentication methods (passwords, pre-shared secrets, public key infrastructure) are used, then security can be achieved, but device complexity and configuration difficulty increase significantly
Solution Approach 1:
The terminal device generates authentication credentials autonomously using its own sensor data without requiring external key distribution or certificate management. The device serves itself by creating the authentication proof from its unique physical characteristics, eliminating the need for complex pre-configuration or infrastructure support.
Solution Approach 2:
Sensor data acts as an intermediary that bridges the terminal device and the authentication server. Instead of directly exchanging secrets or certificates, the sensor data serves as a neutral mediator that proves the device's identity through its unique physical characteristics, simplifying the authentication protocol.
2Reliability
If pre-shared secrets or passwords are used for authentication, then security can be established, but vulnerability to attacks (invasive, side-channel, eavesdropping) increases
Solution Approach 1:
The patent extracts the authentication proof from static secrets and embeds it in dynamic sensor data that reflects the device's unique physical characteristics. By taking out the vulnerability of pre-shared secrets and replacing them with ephemeral sensor-based credentials, the system eliminates the attack vectors that target stored secrets.
Solution Approach 2:
The authentication credentials are made dynamic by using sensor data that changes with each measurement. Instead of static passwords or keys, the system uses continuously varying sensor readings that reflect the device's physical state, making it impossible for attackers to reuse captured credentials or perform replay attacks.
3Reliability
If complex authentication algorithms and certificate verification are implemented, then security is improved, but computational energy consumption increases
Solution Approach 1:
The patent uses inexpensive, easily measurable sensor data instead of computationally intensive cryptographic operations. The sensor readings serve as disposable, single-use authentication credentials that require minimal processing to generate and verify, dramatically reducing energy consumption compared to public key infrastructure.
Solution Approach 2:
The patent replaces complex computational authentication mechanisms with simple physical measurements. Instead of running heavy cryptographic algorithms, the system uses straightforward sensor readings that naturally encode the device's identity, substituting mechanical/physical processes for computational ones to reduce energy usage.
4Reliability
If traditional authentication methods requiring configuration are used, then security can be established, but ease of operation decreases, especially for residential users
Solution Approach 1:
The terminal device automatically generates its authentication credentials using its own sensor data without requiring user configuration. The device serves itself by extracting unique identifiers from its physical characteristics, eliminating the need for users to manually set up passwords or certificates.
Solution Approach 2:
The sensor data serves multiple functions: it characterizes the device's physical identity, provides authentication credentials, and proves the device's legitimacy. This multi-functional use of sensor data eliminates the need for separate configuration steps for different authentication mechanisms, simplifying the user experience.
Data Source
AI summary
A method for authenticating a terminal device in a communication network, wherein a communication connection is established between the terminal device and a network access node of the communication network; upon a sensory stimulation of the terminal device, the terminal device performs a recording of sensor data; the terminal device transmits the sensor data via the communication connection to the network access node; and the terminal device is authenticated by the network access node as a function of a confirmation or rejection of a playback of the sensor data.