Electronic Device RSSI Verification for Secure Proximity Authentication
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Solution Overview
Problem
Existing wireless communication technologies face security vulnerabilities due to unreliable Received Signal Strength Indicator (RSSI) information, which can be spoofed and lack integrity, making proximity authentication insecure.
Innovation Solution
An electronic device is equipped with a processor to identify encrypted packets, acquire RSSI information, and perform proximity authentication based on reliable RSSI data, ensuring secure communication by terminating connections if encrypted packets are not received.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If RSSI information is acquired from external devices without encryption verification, then proximity authentication can be performed, but security vulnerabilities arise due to spoofing and lack of integrity
Solution Approach 1:
The system performs encryption verification and integrity checks on RSSI information before using it for proximity authentication. By preliminarily verifying the cryptographic binding between RSSI and authenticated data, the system ensures that only reliable, non-spoofed RSSI values are accepted, thus maintaining both ease of operation and security.
2Reliability
If additional encryption checking is performed to increase security, then security is improved, but it becomes an indirect solution that cannot cover all locking and unlocking scenarios
Solution Approach 1:
The system integrates encryption verification and cryptographic binding checks into the core RSSI acquisition process, making it a universal solution that applies to all proximity authentication scenarios including both locking and unlocking operations. This eliminates the need for separate indirect checks and ensures comprehensive coverage of all scenarios.
3Ease of operation
If RSSI information is used without cryptographic binding to data received through authentication, then proximity authentication can be performed, but the RSSI information lacks guaranteed integrity
Solution Approach 1:
The system introduces cryptographic binding as an intermediary mechanism that links RSSI information to authenticated data. This binding acts as a mediator that ensures integrity by verifying that the RSSI value corresponds to genuine authenticated communication, preventing information loss or corruption through spoofing.
Data Source
AI summary
An electronic device includes a memory storing instructions, and a processor configured to execute the instructions to, based on receiving one or more packets from an external device, identify whether the one or more packets are encrypted, acquire first information indicating whether each of the one or more packets is encrypted and second information indicating a received signal strength indicator (RSSI) of each of the one or more packets, and acquire authenticated RSSI information of the external device by identifying RSSI information of an encrypted first packet based on the first information and the second information.