Ambient Power (AMP) Device Secure Session Initiation via Server Authentication
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Solution Overview
Problem
Existing wireless ambient power (AMP) devices face challenges in establishing secure communication due to limited power availability, which prevents the use of extensive handshake protocols for authentication and encryption, and their location can be unknown to powered wireless devices, leading to unsecured data transmission risks.
Innovation Solution
A method for AMP devices to initiate encrypted communication sessions with powered wireless devices using minimal data exchange frames, where a network server performs authentication and key generation on behalf of the powered wireless device, embedding authentication and encryption information in data frames, allowing AMP devices to operate with minimal power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If extensive handshake protocols are used for authentication and encryption, then communication security is improved, but power consumption increases
Solution Approach 1:
A network server acts as an intermediary to perform authentication and key generation on behalf of the powered wireless device. The AMP device simply transmits its identifier to the network server, which then handles the complex cryptographic operations and establishes the secure connection without requiring the AMP device to perform extensive handshake protocols
Solution Approach 2:
The network server performs authentication and key generation in advance before the actual data transmission begins. By pre-establishing the security context through minimal initial exchange, the system enables secure communication without requiring continuous power consumption for complex protocols during data transfer
2Use of energy by moving object
If AMP devices transmit data without secure protocols, then power consumption is reduced, but data security deteriorates
Solution Approach 1:
The network server serves as a trusted intermediary that enables secure data transmission without requiring the AMP device to perform power-intensive authentication operations. The server handles encryption and key management, allowing the AMP device to transmit data securely with minimal power consumption
Solution Approach 2:
The system changes the operational parameters by shifting the computational burden from the AMP device to the network server. This allows the AMP device to maintain low power consumption while the network server provides the necessary security functions through its resources
3Ease of operation
If AMP devices initiate communication, then communication initiation flexibility is improved, but authentication complexity increases
Solution Approach 1:
The network server acts as a mediator that simplifies the authentication process for AMP devices initiating communication. Instead of the AMP device needing to perform complex authentication challenges and key exchange, it simply transmits its identifier to the network server, which handles the authentication complexity in the background
Data Source
AI summary
A method including determining, by an ambient power (AMP) device that harvests environmental energy, one or more first authentication and key management (AKM) parameters, and transmitting, by the AMP device to a powered wireless device, an initialization request frame comprising one or more frame-exchange parameters and the one or more first AKM parameters with which the powered wireless device is to establish an encrypted wireless communication session with the AMP device.