Broadcast Data Interception for Secure Access Control
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Solution Overview
Problem
Existing access control methods are inefficient and inconvenient, particularly in scenarios where direct links between devices are required, and there is a need for secure, automatic, and selective access control without the burden of physical keys or lengthy authentication processes.
Innovation Solution
A method involving a computer system that intercepts and reassembles data packets over a connectionless short-range radio-frequency band for authentication and identification, enabling access to services only for authorized users, without the need for direct optical links or manual authentication processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If direct links between devices are required for access control, then security is improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The patent introduces an intermediary authentication system that operates over connectionless channels. Instead of requiring direct device links, the system uses broadcast data packets containing authentication information as a mediator. The computer system intercepts these packets, extracts authentication data, and verifies credentials without establishing a direct connection, thus maintaining security while reducing complexity
Solution Approach 2:
The patent replaces the mechanical requirement of direct optical or physical links with an electromagnetic field-based wireless communication system. By substituting the need for direct line-of-sight or physical connection with radio-frequency broadcast and interception, the system achieves similar security objectives without the operational burden of establishing direct links
2Reliability
If manual authentication processes are used, then security is improved, but productivity and ease of operation deteriorate
Solution Approach 1:
The patent implements self-service authentication where the broadcaster automatically transmits authentication credentials through broadcast data packets without human intervention. The computer system automatically intercepts, processes, and verifies these packets. This automated exchange eliminates manual authentication steps while maintaining security through cryptographic verification of the broadcast credentials
Solution Approach 2:
The authentication credentials are prepared and embedded in broadcast data packets in advance. The broadcaster pre-configures authentication information to be transmitted automatically, and the computer system is pre-configured to intercept and verify these packets. This preliminary preparation eliminates the need for real-time manual authentication processes, improving productivity while maintaining security
3Ease of operation
If physical keys are used for access control, then ease of operation is improved, but reliability and security deteriorate
Solution Approach 1:
The patent creates a digital copy of the physical key concept through broadcast data packets containing authentication credentials. Instead of relying on physical keys that can be lost or duplicated illegally, the system uses electronic authentication data that can be verified cryptographically. The broadcaster transmits these digital credentials automatically, maintaining ease of operation while improving security through verified electronic authentication
4Ease of operation
If connectionless channels are used for data transmission, then ease of operation is improved, but measurement precision and authentication reliability deteriorate
Solution Approach 1:
The patent implements feedback mechanisms in the authentication process. The computer system intercepts broadcast data packets, extracts authentication information, verifies credentials against stored data, and determines access authorization. This verification feedback loop ensures that even though the channel is connectionless, the authentication reliability is maintained through systematic verification of the intercepted authentication data
Data Source
Figure 1~2A
Figure 2B~3
Figure 4~5A
AI summary
The present disclosure relates to an access control method comprising intercepting (10) by a computer system (24, 41) one or more data packets of at least one data item of a broadcaster (25, 45, 100) over a connectionless channel in a short-range radio-frequency band; using the data item for authenticating and/or identifying the broadcaster; and in case the broadcaster is authenticated and/or identified, enabling the broadcaster to access a service enabled by the computer system.