Distributed Home Subscriber Server Authentication via Blockchain
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Solution Overview
Problem
Home subscriber servers in IMS networks are vulnerable to centralized failure points, making them susceptible to malicious distributed denial of service attacks and lacking in resilience and processing speed.
Innovation Solution
A decentralized and distributed secure home subscriber server system utilizing a peer-to-peer network with a Bitcoin blockchain, employing strong public-secret key encryption and a distributed database to ensure mutual authentication and secure communication between mobile devices and base stations, thereby distributing the authentication process across multiple nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a centralized home subscriber server is used, then the system structure is simple and easy to manage, but the system is vulnerable to single-point failures and malicious attacks
Solution Approach 1:
The patent divides the centralized home subscriber server into multiple distributed authentication nodes across a peer-to-peer network. Each node stores a portion of the authentication database and can independently process authentication requests, eliminating the single-point failure vulnerability while maintaining system functionality.
Solution Approach 2:
The patent introduces a blockchain-based distributed ledger as an intermediary layer between authentication nodes and users. This mediator enables mutual authentication and secure communication without requiring a centralized authority, resolving the contradiction between simplicity and security.
2Reliability
If a decentralized distributed system is implemented, then the resilience and security against attacks are improved, but the system complexity increases
Solution Approach 1:
The patent implements a universal peer-to-peer authentication protocol that can be deployed across diverse network environments and devices. The standardized cryptographic interfaces and mutual authentication mechanisms provide multi-functional capabilities that simplify deployment despite the distributed architecture.
Solution Approach 2:
The patent changes the fundamental parameter of system architecture from centralized to decentralized, utilizing cryptographic parameters (public-secret key pairs) to manage complexity. The blockchain consensus mechanisms transform the coordination problem into a solvable parameter optimization task.
3Ease of manufacture
If traditional authentication methods are used, then the implementation is straightforward, but the processing speed and network efficiency are limited
Solution Approach 1:
The patent performs preliminary authentication setup by distributing public keys and cryptographic credentials to all nodes before actual authentication operations. This pre-configured trust infrastructure enables rapid mutual authentication without repeated key exchange negotiations, improving processing speed while maintaining implementation feasibility.
Solution Approach 2:
The patent replaces traditional mechanical authentication mechanisms (centralized database queries, sequential verification) with cryptographic operations (digital signatures, hash verification). These substitution operations execute faster and in parallel, significantly improving processing speed while keeping implementation relatively straightforward.
Data Source
AI summary
A decentralized and distributed secure home subscriber server is provided. First data can be sent representing a first nonce string to a mobile device; and in response to receiving second data representing the first nonce string and a second nonce string, a communication channel can be established with the mobile device as a function of the first nonce string.