Secure Obfuscation Network Double Tunneling
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Solution Overview
Problem
Current VPN technologies expose users' and servers' Internet addresses, making them vulnerable to third-party attacks, as connections are point-to-point and not effectively protected against eavesdropping and location discovery.
Innovation Solution
A secure obfuscation network (SON) is implemented using a double tunneling technique with randomly selected public-private transit nodes, mixing private and public traffic streams, and employing traffic shaping to obscure the true origin of data streams, ensuring high bandwidth and confidentiality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If point-to-point VPN communication is used, then secure data transmission is achieved, but the Internet location of users and servers is exposed making them vulnerable to third-party attacks
Solution Approach 1:
The communication path is segmented into multiple hops through a chain of relay nodes instead of a direct point-to-point connection. Each node in the chain forwards traffic to the next node, obscuring the end-to-end path and preventing any single node from knowing both the source and destination locations, thus resolving the contradiction between secure transmission and location exposure.
Solution Approach 2:
Randomly selected relay nodes are introduced as intermediaries between the client and server. These intermediaries forward traffic without knowing the complete communication path, acting as trusted third parties that enable secure transmission while preventing location disclosure to potential attackers.
2Object-affected harmful factors
If traffic is routed through randomly selected nodes to conceal location, then third-party attack resistance is improved, but network complexity increases
Solution Approach 1:
The system pre-establishes a chain of relay nodes and their routing relationships before actual communication occurs. This preliminary configuration allows the routing decision to be simplified during data transmission, as nodes only need to forward traffic to the pre-determined next hop rather than making complex real-time routing decisions, thus reducing operational complexity while maintaining security.
Solution Approach 2:
The relay node selection is made dynamic and random for each communication session, allowing the system to adapt to different network conditions and attack vectors. This dynamic approach provides flexibility in routing while maintaining the security benefits of location obfuscation without requiring complex static configurations.
3Reliability
If private traffic is separated from public traffic pathways, then bandwidth security is improved, but network resource utilization decreases
Solution Approach 1:
The system merges private traffic with public traffic by routing both through the same relay node infrastructure. Private traffic is encrypted and multiplexed with public traffic streams, allowing secure transmission without dedicated separate pathways. This combining approach improves resource utilization by sharing infrastructure while maintaining security through encryption and traffic mixing.
Solution Approach 2:
Private traffic is nested within the public traffic framework by encapsulating encrypted private data streams within the existing relay network infrastructure. The private communication channels are embedded within the broader network structure, allowing secure transmission without requiring separate physical or logical networks, thus optimizing resource usage while preserving bandwidth security.
Data Source
AI summary
Described are a secure obfuscation network (SON) and ingress nodes, transit nodes and egress nodes used in such a network. Also described is a method for implementing such a network.