Host Security Appliance for Network Threat Detection
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Solution Overview
Problem
Current security measures for computer networks fail to prevent, detect, and respond effectively to security threats by not providing independent user authentication and inadequate protection for traffic between devices, allowing unauthorized access and malicious activities.
Innovation Solution
A device that authenticates users, monitors and controls communication between a controlled host and services, using cryptographic protocols, intrusion detection systems, and filters to prevent and respond to security threats by identifying and blocking malicious intent, ensuring privacy and integrity of communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical separation between computer network and other networks/devices is used to block intruders, then network security is improved, but secure access mediation between controlled hosts and services deteriorates
Solution Approach 1:
A security appliance is introduced as an intermediary device positioned between the controlled host and the network. This appliance includes a network interface card installed in the controlled host and provides authentication, encryption, and security policy enforcement capabilities, enabling secure access mediation while maintaining network isolation
2Reliability
If boundary defenses are deployed to protect controlled hosts, then network security is improved, but protection against intruders already inside the network deteriorates
Solution Approach 1:
The security solution extends from traditional network boundary defense to host-level protection by installing a security appliance directly in the controlled host. This dimensional shift enables monitoring and control of internal traffic and activities, preventing malicious actions by intruders who have compromised the host
3Reliability
If user authentication is integrated with the device being protected, then device security is improved, but independent user verification deteriorates
Solution Approach 1:
The security appliance acts as an intermediary authentication authority, separate from the controlled host it protects. It maintains independent user credentials and performs verification, preventing conflicts of interest and ensuring accurate user identification while enhancing overall system security
4Reliability
If comprehensive security monitoring is implemented between controlled host and services, then threat detection is improved, but communication overhead and processing time increase
Solution Approach 1:
Security policies, authentication credentials, and encryption keys are pre-configured in the security appliance before operation. This preliminary setup enables rapid real-time enforcement of security rules and encryption/decryption operations without requiring complex runtime decision-making, reducing processing delays
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively prevents and detects security threats by authenticating users, encrypting communications, and blocking malicious activities, ensuring only authorized access and maintaining network security through real-time threat analysis and response mechanisms.
Implementation Method 1
The device includes a mechanism for cryptographically ensuring the privacy and integrity of communications between the controlled host and the one or more services
Data Source
AI summary
A device to prevent, detect and respond to one or more security threats between one or more controlled hosts and one or more services accessible from the controlled host. The device determines the authenticity of a user of a controlled host and activates user specific configurations under which the device monitors and controls all communications between the user, the controlled host and the services. As such, the device ensures the flow of only legitimate and authorized communications. Suspicious communications, such as those with malicious intent, malformed packets, among others, are stopped, reported for analysis and action. Additionally, upon detecting suspicious communication, the device modifies the activated user specific configurations under which the device monitors and controls the communications between the user, the controlled host and the services.