Secure Trace Data Filtering and One-Way Transmission
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Solution Overview
Problem
Existing systems face challenges in securely transmitting trace information from a high-security zone to an analysis tool in a lower-security zone while ensuring compliance with different security policies, particularly in protecting sensitive information and maintaining data integrity.
Innovation Solution
A secure application generates filtered trace information within a first security zone, using a filter to remove sensitive data, which is then stored in a filtered datastore and accessed by an adapter application to send it to a second security zone for analysis, ensuring one-way communication that adheres to both security policies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If trace information is transmitted from the first security zone to the second security zone for analysis, then diagnostic capability is improved, but security of sensitive information deteriorates
Solution Approach 1:
The filter extracts and removes sensitive information from trace data before transmission. The filter component identifies and strips out sensitive fields such as personally identifiable information, credentials, and security-critical data, allowing only non-sensitive trace information to be transmitted to the second security zone for analysis.
Solution Approach 2:
The adapter application serves as an intermediary between the first and second security zones. It receives trace information from the secure application, coordinates with the filter to remove sensitive data, and then transmits the filtered information to the second security zone, thereby mediating the security risk while enabling diagnostics.
2Object-affected harmful factors
If filtering is applied to remove sensitive information from traces, then security is improved, but information completeness for debugging deteriorates
Solution Approach 1:
The filter applies selective processing to different parts of the trace information. Instead of removing all information or using a blanket approach, the filter identifies specific sensitive fields and removes only those portions while preserving the rest of the trace data, thereby maintaining local quality where sensitivity requires removal and diagnostic value requires preservation.
3Reliability
If one-way communication is implemented between security zones, then security policy compliance is improved, but communication flexibility deteriorates
Solution Approach 1:
Instead of allowing the analysis tool to pull trace data directly from the secure application (which would violate security policies), the system inverts the communication direction by having the adapter proactively push filtered trace information to the second security zone. This one-way push model maintains security policy compliance while enabling the necessary data flow for diagnostics.
Data Source
AI summary
An application runs in a first security zone of a computer system. Trace information generated from running the application is stored in a first security zone. Filtered trace information is generated by removing specified information from the trace information. The filtered trace information is stored in a particular storage location within the first security zone. An adapter application that is running within the first security zone is executable to access the particular storage location and call a second security zone. The adapter application transmits, from the first security zone to a datastore within the second security zone, the filtered trace information stored in the particular storage location. Communication between the first security zone and the second security zone is one-way from the first security zone to the second security zone.