Anonymous Communication in Body Area Networks via Substitute IDs
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Solution Overview
Problem
In Body Area Networks (BANs), existing communication protocols require devices to reveal their unique identification information, which can compromise anonymity, especially when nodes only need to acquire low-priority information from the hub.
Innovation Solution
A communication device and method that generates a substitute identification information different from the actual device ID, allowing nodes to communicate anonymously by using this substitute ID in frames, particularly through cryptographic hash functions like MD5 or SHA, and indicating anonymous communication through specific frame control fields.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a node transmits its unique identification information to the hub for communication, then the hub can identify and communicate with the node, but the node's anonymity is compromised
Solution Approach 1:
The patent introduces a substitute identification information as an intermediary between the node's unique ID and the hub. This substitute ID acts as a mediator that allows communication to occur while preventing direct exposure of the node's true identity. The hub receives and processes communication based on the substitute ID rather than the unique ID, thus maintaining anonymity while ensuring communication reliability.
Solution Approach 2:
The patent creates a copy of the node's identification function through substitute identification information. Instead of transmitting the actual unique ID, the system uses a substitute copy that fulfills the identification requirement for communication purposes. This copy allows the hub to distinguish and communicate with the node without revealing the node's true identity, resolving the contradiction between reliable communication and anonymity preservation.
2Ease of operation
If a node uses its unique identification information for communication, then the communication can be properly routed and managed, but security and privacy are reduced
Solution Approach 1:
The substitute identification information serves as an intermediary layer that simplifies communication management for the hub while protecting node privacy. The hub can easily route and manage communications using the substitute ID without directly handling sensitive unique IDs. This intermediary mechanism maintains operational ease while eliminating privacy exposure risks.
3Loss of information
If all nodes always use anonymous communication, then privacy is protected, but the ability to establish trusted connections is reduced
Solution Approach 1:
The patent implements a dynamic identification system where nodes can switch between using substitute identification information (for anonymity) and unique identification information (for trusted connections). This dynamic approach allows the communication mode to adapt based on the situation: using substitute IDs for general privacy-protection scenarios and unique IDs when establishing trusted connections, thus resolving the contradiction between anonymity and connection reliability.
Data Source
AI summary
According to an aspect of the present invention, a communication device includes a communicator for communication with other device in a network to which the communication device belongs and a processor for generating frames to be communicated. The processor generates second identification information different from first identification information which is identification information unique to the communication device based on the first identification information. Further, the processor generates a frame including the second identification information.