Tamper Detection System for Encryption Apparatus
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing user terminals, such as ATMs, lack effective tamper detection systems that can enhance security without relying on bulky physical reinforcement, especially in scenarios where little or no cash is present.
Innovation Solution
A tamper detection system associated with a PIN encryption apparatus is implemented, which includes means to trigger the detection system in response to tampering with the encryption apparatus or other components, using detectors to render the encryption apparatus temporarily or permanently unable to encrypt, and modifying or deleting keys stored within.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical reinforcement (bulky cladding or reinforcement) is used to secure user terminals, then security against theft and tampering is improved, but the terminal becomes more expensive and physically bulky
Solution Approach 1:
The patent replaces mechanical/physical security reinforcement (bulky cladding, physical strengthening) with an electronic/software-based tamper detection system that monitors environmental conditions and triggers security responses, thereby improving security without adding physical bulk or structural complexity
Solution Approach 2:
The patent introduces an intermediary tamper detection system that acts as a mediator between the encryption apparatus and potential tampering attempts. This system monitors environmental conditions and intermediate states, providing security through detection and response rather than physical reinforcement
2Reliability
If extensive physical reinforcement is implemented in user terminals, then security is improved, but the cost of the terminal increases
Solution Approach 1:
The patent substitutes expensive physical reinforcement materials and structural modifications with a cost-effective electronic tamper detection system that uses sensors, environmental monitoring, and software-based security responses, thereby maintaining security while reducing manufacturing costs
3Reliability
If the tamper detection system is triggered in response to tampering with further components, then security coverage is improved, but the system complexity increases
Solution Approach 1:
The patent implements a universal tamper detection system that serves multiple functions: it monitors environmental conditions, detects tampering with the encryption apparatus, detects tampering with further components, and triggers appropriate security responses. This multi-functional approach improves security coverage without proportionally increasing system complexity
Data Source
AI summary
A user terminal comprises an encryption apparatus, a tamper detection system associated with the encryption apparatus and means for triggering the tamper detection system in response to tampering with the encryption apparatus, at least one further component, and further means for triggering the tamper detection system, wherein the further means for triggering the tamper detection system is configured to trigger the tamper detection system in response to tampering with the at least one further component.