Sandboxed Security App for Local Network Traffic Inspection
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Solution Overview
Problem
Existing network traffic inspection methods face challenges such as security applications being installed with elevated privileges, leading to potential security breaches, and reliance on remote servers causing latency and increased power consumption.
Innovation Solution
A security application is installed as an operating system extension, utilizing a network extension service like the VPN stack to access network traffic in a non-privileged sandboxed process, allowing local analysis of network traffic for potential security threats without the need for user intervention or remote server reliance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a security application is installed with elevated privileges to access network traffic, then the security application can inspect network traffic effectively, but the system becomes vulnerable to security breaches through privilege abuse
Solution Approach 1:
The patent segments the network traffic inspection function by creating a separate sandboxed process that operates independently from the main operating system. This sandboxed environment allows the security application to inspect network traffic without requiring elevated system privileges, thereby maintaining inspection capability while reducing security breach risk through process isolation.
Solution Approach 2:
The patent introduces a sandboxed process as an intermediary between the network traffic and the security inspection logic. This intermediary layer allows network traffic to be inspected without direct access to privileged system resources, mediating between the inspection requirement and security constraint through controlled environment isolation.
2Reliability
If network traffic is sent to remote servers for analysis, then comprehensive security inspection can be performed, but latency and increased power consumption occur
Solution Approach 1:
The patent enables the device to perform security inspection locally through a sandboxed process that runs on the device itself rather than relying on remote servers. This self-service approach allows comprehensive security inspection to be performed locally, eliminating latency associated with remote communication while maintaining inspection thoroughness through the sandboxed environment's capabilities.
3Loss of time
If network traffic inspection is performed locally without remote servers, then latency is reduced, but the application requires sophisticated local implementation
Solution Approach 1:
The sandboxed process acts as an intermediary layer that simplifies the implementation of local network traffic inspection. Instead of requiring direct complex integration with the operating system network stack, the sandboxed process provides a standardized interface for intercepting and inspecting traffic, reducing implementation complexity while maintaining low latency through local processing.
Data Source
AI summary
Network traffic inspection is disclosed. An application executing on a client device as an operating system that uses a virtual private network (VPN) stack of the operating system intercepts a first IP packet. The application determines that a policy should be applied to the intercepted first IP packet. The policy is applied to the intercepted first IP packet.