Database Schema Local Cache for Pay-Per-Use Security
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Solution Overview
Problem
Pay-per-use computers pose challenges in metering and monitoring operations with infrequent network access, requiring robust security and quick network responses, which existing technologies struggle to address effectively.
Innovation Solution
A web portal and underlying database system utilizing tailored schemas, including a device schema and key management schema, with a local cache for speed and security, employing SQL notification services to maintain fresh data and enable local processing of requests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a pay-per-use computer operates with infrequent network access, then user autonomy and flexibility are improved, but security and metering reliability deteriorate
Solution Approach 1:
The system performs preliminary actions by establishing cryptographic credentials, security certificates, and metering parameters on the device before it goes offline. The security core is pre-configured with necessary keys and authentication mechanisms, allowing the device to operate securely autonomously without continuous network connection.
Solution Approach 2:
A security core acting as an intermediary component is introduced between the pay-per-use computer and the network. This security core manages cryptographic operations, validates usage, and maintains security policies locally, enabling reliable secure operation even when network access is infrequent.
2Speed
If the network server responds quickly to requests, then service quality is improved, but network infrastructure complexity increases
Solution Approach 1:
The system pre-loads and caches necessary service data, configuration information, and authentication tokens on the device before network disconnection. This allows the device to process requests quickly using locally cached information without requiring real-time network server responses for every operation.
Solution Approach 2:
The pay-per-use computer is equipped with a security core that autonomously handles authentication, authorization, and metering decisions locally. The device serves itself by making security and usage decisions without requiring continuous network server intervention, thereby reducing network infrastructure complexity while maintaining fast response times.
3Reliability
If cryptographic security requirements are fully implemented, then security is improved, but processing overhead and complexity increase
Solution Approach 1:
The security functionality is segmented into a dedicated security core component that is separated from the main application logic. This modular architecture isolates cryptographic operations to a specialized module, making the system more manageable and reducing the processing overhead on the main system by offloading security-intensive tasks to the security core.
Data Source
AI summary
In a pay-per-use computer environment, particularly when network access is limited, self-monitoring tools on a pay-per-use computer may require special support from a host/server. The host/server must be able to respond to requests quickly and efficiently and yet maintain full information required to service requests and updates. A key management table and a device management table provide critical information required to service requests. Use of SQL notifications allows local database caches to remain current but quickly accessible.