Body Coupled Communication Key Management for Wearable Security
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Solution Overview
Problem
Existing wearable communication devices require cumbersome physical or wireless local connectivity methods to transmit data, limiting their usability and security, especially for managing digital keys, and existing solutions do not adequately address the need for user-friendly and secure key distribution.
Innovation Solution
A system utilizing Body Coupled Communication (BCC) technology enables wireless communication devices to receive and send digital keys to wearable communication devices, ensuring secure distribution through body contact, allowing users to utilize wearables as keys for locks, with features like automatic key deletion upon loss of contact to prevent theft.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical or wireless local connectivity methods are used to transmit data between devices, then data transmission is enabled, but the communication becomes cumbersome and security is compromised
Solution Approach 1:
The patent replaces traditional mechanical/physical connectivity interfaces (USB, audio plugs) and wireless local connectivity (Bluetooth, WiFi, NFC) with Body Coupled Communication technology. This substitution uses the human body as a communication medium through capacitive coupling, eliminating the need for physical interfaces or conventional wireless protocols, thereby achieving both secure transmission and operational convenience.
2Adaptability or versatility
If physical keys are used for locks, then key distribution is simple, but keys can get lost and are limited in number
Solution Approach 1:
The patent creates digital copies of physical keys in the form of electronic key data that can be stored and transmitted multiple times without degradation. These digital key copies can be distributed to multiple wearable devices simultaneously, eliminating the limitation of single-use physical keys while maintaining security through encrypted transmission and body-coupled communication authentication.
Solution Approach 2:
The patent makes the wearable communication device universal by enabling it to function both as a communication device and as a key storage/transmission device. The same device that communicates via BCC technology also stores and transmits key data, eliminating the need for separate physical keys and enhancing both flexibility and security.
3Ease of operation
If card-based access systems are used, then access control is enabled, but cards can get lost and be stolen, and are not suited for private purposes
Solution Approach 1:
The patent introduces the human body as an intermediary medium for key transmission. The body-coupled communication system uses the user's body capacitance as a secure transmission channel, making it difficult for unauthorized access while maintaining convenient operation. The wearable device communicates key data through body contact, creating a secure intermediary layer between the user and the lock system.
Data Source
AI summary
A system with a wireless communication device and one or more wearable communication devices utilizing Body coupled communication, BCC, technology for managing digital keys to a lock. The key management system comprises a wireless communication device and at least one wearable communication device, for managing digital keys, wherein the wireless communication device and the wearable communication device are Body Coupled Communication, BCC, enabled. The method comprises receiving, in the wireless communication device, one or more digital keys to a lock from an external server, detecting, in the wireless communication device, one or more wearable communication devices using BCC, sending, using BCC, the one or more digital keys from the wireless communication device to the detected one or more wearable communication devices and receiving, using BCC, the one or more digital keys from the wireless communication device in the one or more wearable communication devices, thereby enabling the wearable communication device to open the lock.