Zero-Power Device Authentication With Reduced Signaling Load
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Solution Overview
Problem
Zero-power devices face challenges with high computational complexity and power consumption during authentication processes, leading to poor usability and incomplete communication tasks due to energy depletion.
Innovation Solution
A simplified authentication method for zero-power devices involving message exchange and key-based calculations to reduce computational and power requirements, allowing for efficient authentication with reduced signaling and processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional authentication procedures are applied to zero-power devices, then authentication security is maintained, but power consumption increases and device energy depletes quickly
Solution Approach 1:
The authentication procedure is divided into two distinct phases: a first authentication procedure for normal devices and a second authentication procedure specifically for zero-power devices. This segmentation allows each procedure to be optimized for its target device type, enabling zero-power devices to use a simplified, lower-power authentication method while maintaining security requirements.
Solution Approach 2:
The patent changes the computational complexity parameters of the authentication procedure by replacing high-complexity cryptographic operations with simplified verification mechanisms. The network device performs the computationally intensive key generation and verification, while zero-power devices only perform simple message exchange and basic verification, fundamentally changing the energy consumption profile of the authentication process.
2Reliability
If traditional authentication procedures are applied to zero-power devices, then authentication completeness is achieved, but authentication delay increases
Solution Approach 1:
By segmenting the authentication procedures into different types based on device capabilities, the patent enables zero-power devices to follow a streamlined second authentication procedure that completes authentication in fewer steps and with less computational overhead, thereby reducing authentication delay while maintaining completeness.
Solution Approach 2:
The network device performs preliminary authentication setup and key generation before zero-power devices need to authenticate. This preliminary action by the network device reduces the computational burden on zero-power devices during the actual authentication process, enabling faster authentication completion.
3Reliability
If traditional authentication procedures are applied to zero-power devices, then security requirements are met, but device complexity increases
Solution Approach 1:
The patent segments the authentication architecture into device-specific procedures, creating a dedicated second authentication procedure for zero-power devices that has simpler computational requirements and fewer complex cryptographic operations, thereby reducing the effective complexity that zero-power devices must handle while still meeting security requirements.
Solution Approach 2:
The network device acts as an intermediary that handles complex authentication operations on behalf of zero-power devices. By performing intensive key generation, verification, and security operations centrally at the network device, the patent eliminates the need for zero-power devices to implement complex authentication logic locally, thus reducing device complexity.
Data Source
AI summary
The disclosure relates devices and a network element. A first device calculates third authentication information based on a first key, where the first key is related to a shared key. The first device sends a second message, where the second message carries the third authentication information.