Blockchain Token Access for Local Network Security
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Solution Overview
Problem
Existing access control systems for local networks are cumbersome and insecure, particularly when users need to remotely access devices connected to the Internet, as they lack convenient and secure methods for authentication and authorization.
Innovation Solution
A blockchain-based access control system that uses physical proximity interfaces to dispense tokens, allowing secure access to devices on a local network through proof of authority authentication, enabling authorized access from anywhere and maintaining an immutable log of access activities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional security features are implemented to secure devices on a local network, then security is improved, but the system becomes cumbersome and complicated
Solution Approach 1:
The system segments authentication into two distinct phases: local authentication using physical tokens obtained through proximity interfaces, and remote authentication using blockchain-verified digital tokens. This segmentation allows each phase to use optimized security mechanisms appropriate to its context, reducing overall system complexity while maintaining high security standards.
Solution Approach 2:
The patent introduces blockchain technology as an intermediary layer between the local network and remote access points. The blockchain serves as a trusted mediator that verifies token authenticity without requiring direct communication between the local network and remote users, thereby simplifying the authentication architecture while enhancing security through decentralized verification.
2Reliability
If identification and passwords are used for access control, then security is improved, but ease of operation deteriorates
Solution Approach 1:
The patent replaces traditional mechanical authentication methods (physical keys, passwords, and ID cards) with a digital token system based on blockchain technology. Users obtain authentication tokens through proximity interfaces using their smartphones or other digital devices, eliminating the need to remember passwords or carry physical identification items, thus significantly improving ease of operation while maintaining strong security through cryptographic verification.
3Adaptability or versatility
If devices are connected to the Internet for remote access, then adaptability is improved, but vulnerability to cyber attacks increases
Solution Approach 1:
The system performs preliminary authentication and token verification through the blockchain network before allowing any remote access to occur. By pre-establishing trusted relationships and verifying device identities in advance, the system ensures that only authenticated devices can establish connections, thereby reducing the attack surface and preventing unauthorized access attempts before they can compromise the network.
Solution Approach 2:
The blockchain network provides continuous feedback by maintaining a distributed ledger of authenticated devices and their access permissions. This feedback mechanism allows the system to dynamically adjust access control decisions based on the current authentication state of devices, enabling real-time security monitoring and response to potential threats while maintaining remote access capabilities.
Data Source
AI summary
An access control method and system that uses tokens on a blockchain which are used for subsequent access to a local network. The tokens are authenticated on the local network using blockchain. A client device can present a token to the local network from anywhere in the world in order to access at least one device on the local network. In an example, the method includes presenting, to a node of the local network, the token; and receiving, from the node, successful authentication of the token. The method can include, after the successful authentication of the token, authorizing the client device to access a device on the local network or removing access to the device for the client device.