Tamper Detection in Liquid Cooling Lines for Edge Computing

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Solution Overview

Problem

Data centers and edge computing systems face security risks due to potential physical access threats, especially in locations where local support cannot be trusted with critical data, necessitating enhanced security measures beyond traditional perimeter protection.

Innovation Solution

Incorporating a liquid coolant system with a coolant security monitor to detect tampering attempts by monitoring pressure and flow changes, utilizing tamper detection barriers and sensors to prevent unauthorized access through coolant lines, and implementing a tamper detection system that includes gates and security modules to secure the coolant lines.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional perimeter protection is used in data centers, then basic security is provided, but additional security measures are needed for workloads requiring higher protection levels

Engineering Contradiction:

Improvesecurity levelVSAvoidsecurity system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the liquid cooling system with a tamper detection security system by integrating sensors, monitors, and barriers into the coolant lines. This merging allows the cooling infrastructure to simultaneously serve thermal management and security detection functions, enhancing reliability without proportionally increasing device complexity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The liquid cooling system is designed to perform multiple functions: heat dissipation and tamper detection. By placing sensors and monitors within the coolant lines, the system can detect physical tampering attempts while maintaining its primary cooling function, thereby providing enhanced security for critical workloads without requiring a completely separate security infrastructure.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If computing systems are deployed in untrusted locations for edge computing, then accessibility and deployment flexibility are improved, but physical security risks increase

Engineering Contradiction:

Improvedeployment flexibilityVSAvoidphysical access threats

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent implements preventive security measures by installing tamper detection sensors, barriers, and monitors within the liquid cooling system before any tampering can occur. These components are pre-positioned to detect insertion attempts, probing, or other physical threats, allowing the system to alert or respond to threats before they can compromise the computing hardware in untrusted locations.

Inventive Principle:

Principle #10Preliminary action

3Temperature

If liquid cooling systems are used for thermal management, then cooling efficiency is improved, but new security attack vectors through coolant lines are introduced

Engineering Contradiction:

Improvecooling efficiencyVSAvoidtamper detection requirements

Core Design Contradiction:

TemperatureVSObject-generated harmful factors

Solution Approach 1:

The patent incorporates feedback mechanisms through sensors and monitors placed within the liquid cooling lines that continuously monitor for tampering attempts. When abnormal conditions such as insertion attempts or flow disruptions are detected, the system provides feedback through alerts or responses, allowing operators to address security threats while maintaining the efficient thermal management provided by the liquid cooling infrastructure.

Inventive Principle:

Principle #23Feedback

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

The solution effectively enhances physical security and data protection by detecting and preventing tampering attempts, ensuring the integrity of computing systems deployed in insecure or untrusted environments, thereby safeguarding critical data and equipment.

Implementation Method 1

a liquid cooling system to cool the electronic component

Methodology Applied

Scientific EffectHeat absorption: Absorption (physical)

Implementation Method 2

a liquid coolant line to circulate liquid to cool an electronic component

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 3

pressure and/or flow of coolant can be monitored and feedback from the monitoring can be used to detect tamper attempts

Methodology Applied

Scientific EffectPressure monitoring:

Implementation Method 4

pressure and/or flow of coolant can be monitored

Methodology Applied

Scientific EffectFlow monitoring:

Data Source

PatentUS20190094924A1Liquid cooling tamper detection

Publication Date: 2019.03.28 HEWLETT PACKARD ENTERPRISE DEV LP

AI summary

In some examples, a computing system can include an exterior enclosure for the computing system, an electrical component within the enclosure, an interior cooling line within the enclosure to circulate coolant past the electrical component to remove heat generated by the electrical component, and an inlet coolant line port through the exterior enclosure to receive an inlet coolant line. The inlet coolant line port can, for example, include a sensor to detect tampering with an interior of the inlet coolant line.