Dependency Network Weaving for Software Attack Resistance

The patent segments the software application into multiple modules with inter-dependencies, where each module relies on specific functions and data from other modules. This segmentation prevents code-lifting and data-lifting attacks by ensuring that extracted code or data cannot function independently without the complete dependency network.

The patent introduces a new dimension of protection by creating temporal and contextual dependencies between code segments. Code execution is made dependent on specific sequences and conditions, adding a temporal dimension to the traditional spatial/module-based protection, making lifted code ineffective outside its original context.

The patent merges dependency management with the existing software architecture by integrating dependency declarations into standard programming practices. The dependency network is combined with the codebase in a way that leverages existing compilers and build systems, avoiding separate complex management layers.

The system performs self-verification of dependencies automatically during execution. The dependency verification mechanism operates transparently without requiring manual intervention or complex user-side management, allowing the system to self-manage and self-verify its integrity.

The patent applies partial dependency weaving by selectively adding dependencies to critical code segments and data structures rather than uniformly across the entire application. This partial action approach provides sufficient tamper-resistance for security-critical components while minimizing performance impact on less sensitive areas.

The patent changes execution parameters dynamically based on dependency verification results. When dependencies are satisfied, execution proceeds normally with standard performance characteristics. When dependencies fail or are suspicious, execution is modified to prevent tampering, allowing performance optimization for legitimate execution paths.