Control Program Code Visibility Switching for Secure Maintenance

The patent segments the source code into multiple parts or modules, allowing selective publication of only necessary portions for maintenance while keeping critical sections concealed. This enables maintenance personnel to access required code segments without exposing the entire source code base to potential unauthorized use or falsification.

The patent applies different quality attributes to different parts of the source code - some portions are published with full visibility for maintenance purposes, while other critical portions remain concealed. This local differentiation allows the system to simultaneously achieve ease of maintenance for non-critical sections while maintaining security for sensitive sections.

The source code is divided into segments where critical functions remain concealed for security while non-critical functions are published for maintenance. This segmentation allows maintenance personnel to work on accessible portions without needing to decrypt or access the entire concealed code base.

The patent introduces an intermediary mechanism (such as a decryption key management system or selective disclosure protocol) that allows maintenance personnel to access specific code portions when needed, without compromising the overall concealed state. This intermediary enables controlled access that balances security requirements with maintenance needs.

The patent implements a universal authentication mechanism that serves multiple functions - it not only prevents unauthorized access but also manages selective code disclosure, tracks access logs, and controls maintenance operations. This multi-functional approach consolidates security operations into a unified system rather than requiring separate mechanisms for each function.

The authentication system is designed to be self-managing, automatically verifying credentials, controlling access rights, and managing code disclosure permissions without requiring manual intervention. This self-service capability reduces the operational complexity of managing security while maintaining robust access control.