Ad-hoc Network Security via External Authentication Manager
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Solution Overview
Problem
Ad-hoc networks, particularly mobile ad-hoc networks, face challenges in providing robust security services due to the lack of infrastructure for key management and vulnerability to attacks like eavesdropping and Denial of Service, with existing security features mainly integrated into routing functions rather than comprehensive management.
Innovation Solution
A method where an ad-hoc network transmits user identities to an external network for authentication parameter generation, which are then returned to provide security services such as authentication and encryption, leveraging an overlaying network infrastructure to support security services for ad-hoc nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ad-hoc networks use traditional security integration into routing functions, then routing security is improved, but overall security management remains inadequate
Solution Approach 1:
The patent segments security management into two distinct parts: routing security handled by existing routing functions, and overall security management handled by a separate security manager component. This allows routing security to be maintained while introducing comprehensive security management without excessive complexity.
Solution Approach 2:
The security manager acts as an intermediary component that coordinates between the routing functions and external authentication sources. It manages authentication, authorization, and key distribution without requiring changes to the core routing logic, thus improving overall security management while maintaining routing security.
2Adaptability or versatility
If ad-hoc networks lack infrastructure for key management, then network mobility and flexibility are improved, but security service provision becomes problematic
Solution Approach 1:
The security manager serves as an intermediary that bridges the mobile ad-hoc network nodes with external authentication infrastructure. It handles key management and authentication requests, allowing nodes to maintain mobility while securing access through coordinated authentication procedures.
Solution Approach 2:
The system performs preliminary authentication and key establishment actions before ad-hoc nodes engage in data transmission. The security manager pre-establishes security contexts and authentication credentials, enabling secure communication to begin immediately when nodes join the network without compromising mobility.
3Adaptability or versatility
If ad-hoc networks use wireless links without infrastructure, then unrestricted mobility is improved, but vulnerability to security attacks increases
Solution Approach 1:
The security manager implements preliminary anti-actions by establishing authentication and authorization frameworks before nodes communicate. It proactively identifies and prevents unauthorized access, eavesdropping, and other attacks by verifying node credentials and establishing secure channels before data transmission occurs.
Solution Approach 2:
The system incorporates feedback mechanisms where the security manager continuously monitors authentication status, detects suspicious activities, and dynamically adjusts security parameters. This feedback loop enables the network to respond to potential attacks in real-time while maintaining unrestricted mobility for authenticated nodes.
Data Source
AI summary
A method and apparatus provide security services in an ad-hoc network. In order to provide security services, a set of user identities is transmitted from a first ad-hoc node to a second network external to the ad-hoc network. The set of user identities includes user identities related to at least one ad-hoc node. A first set of authentication parameters is generated in the external network. The first set of authentication parameters includes an authentication vector for each user identity included in the set of user identities and each authentication vector including a second set of authentication parameters. Some of the authentication parameters of the second set are transferred to the first ad-hoc node, whereby a third set of authentication parameters is received at the first ad-hoc node. The third set of authentication parameters is utilized at the first ad-hoc node for providing a security service in the ad-hoc network.