Secure Device Pairing via Secondary Sensory Key Exchange
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Solution Overview
Problem
Existing device pairing methods using communication protocols like Bluetooth are vulnerable to attacks, leading to insecure connections and increased overhead, necessitating a more secure and efficient method for sharing security keys.
Innovation Solution
Implementing a secondary communication method, such as visible light, sound, or thermal energy, to securely exchange security keys between devices, reducing interception risks and enhancing pairing speed and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If security keys are shared via communication protocols like Bluetooth, then devices can establish connections, but the connection becomes vulnerable to attacks and eavesdropping
Solution Approach 1:
The patent introduces a trusted authority as an intermediary that issues certificates to devices. This mediator enables secure key exchange by providing a trusted third party that vouches for device identities, preventing direct exposure of security keys during pairing while maintaining connection reliability
Solution Approach 2:
The patent replaces direct cryptographic key exchange over vulnerable wireless channels with a certificate-based authentication system. Instead of sharing secret keys directly through Bluetooth or similar protocols, devices use digitally signed certificates that can be verified without exposing the underlying cryptographic secrets
2Reliability
If a trusted authority issues certificates for secure communication, then security is improved, but storage overhead increases and pairing speed decreases
Solution Approach 1:
The patent extracts the security verification function from the device itself and places it in a centralized trusted authority. Devices store only public keys and certificate references rather than complete cryptographic suites, reducing local storage requirements while maintaining security through centralized verification
Solution Approach 2:
The trusted authority serves multiple functions: issuing certificates, verifying device identities, and enabling secure communication setup. This multi-functional approach consolidates security operations, reducing the need for multiple separate security mechanisms and associated storage overhead on individual devices
3Reliability
If a trusted authority is required for secure pairing, then security is enhanced, but the pairing process becomes slower
Solution Approach 1:
The trusted authority performs security verification and certificate issuance in advance, before actual device pairing occurs. Devices receive pre-configured security credentials that enable rapid pairing without requiring real-time authentication with the trusted authority, thus enhancing security while minimizing pairing time
Solution Approach 2:
The patent divides the security process into separate phases: certificate issuance (performed in advance by trusted authority) and device pairing (performed quickly between devices using pre-configured credentials). This segmentation allows security-intensive operations to occur separately from time-sensitive pairing operations
Data Source
AI summary
Systems and methods for securely pairing a transmitting device with a receiving device are described. The systems and methods may communicate with a first device via a first communication method over a wireless communication network. The systems and methods may transmit, to the first device via a second communication method, a first sensory pattern representing a first key. In addition, the system and methods may communicate with the first device via the first communication method using the first key.