API Mediator for Unsigned Content on Closed Gaming Systems
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Solution Overview
Problem
Closed gaming systems restrict the execution of unsigned games, limiting creative development and requiring users to hack consoles to run unsigned code, which poses security risks due to unverified content.
Innovation Solution
A system that allows unsigned content to execute on closed systems by using an application programming interface (API) to validate and translate resource calls from user mode to kernel mode, limiting access to protected resources and preventing malicious interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If unsigned content is allowed to execute on closed systems, then creative development and gaming capabilities are expanded, but security risks increase due to potential malicious access to protected resources
Solution Approach 1:
An API layer is introduced as an intermediary between unsigned user-mode content and kernel-mode protected resources. This API validates and translates resource calls, allowing unsigned content to access necessary resources while preventing direct malicious access to the kernel. The API acts as a security gateway that mediates all interactions between untrusted user-mode applications and trusted kernel-mode resources.
Solution Approach 2:
The system is segmented into distinct execution environments: user mode for unsigned content and kernel mode for protected resources. This segmentation isolates potential security threats in user mode while preserving the integrity of kernel mode resources. The API enforces this segmentation by validating transitions and translations between the two modes, ensuring that unsigned content cannot directly compromise kernel resources.
2Reliability
If only signed code is allowed to run on closed systems, then security and control are maintained, but creative development from the larger community is prevented
Solution Approach 1:
The API serves as a controlled intermediary that enables creative development while maintaining system control. Instead of completely blocking unsigned content, the API provides a sanctioned pathway for unsigned applications to interact with the system in a controlled manner. This allows the larger creative community to develop games and applications without requiring full system access or compromising security controls.
Solution Approach 2:
The system dynamically adjusts its level of access based on the execution context. Signed content receives full access to kernel resources, while unsigned content receives controlled access through the API. This dynamic approach allows the system to maintain strict control where needed while enabling creativity where safe, resolving the contradiction between reliability and adaptability.
3Reliability
If an API layer is introduced to validate and translate resource calls, then security is improved by preventing direct malicious access, but system complexity increases
Solution Approach 1:
The API is designed as a universal interface that handles multiple types of resource access requests through a unified validation and translation mechanism. Rather than creating separate security checks for each resource type, the API provides a multi-functional framework that can validate and translate various kinds of resource calls (graphics, audio, storage, etc.) through a single standardized interface, reducing overall system complexity.
Data Source
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AI summary
Mechanisms are disclosed that allow for execution of unsigned content and the securing of resources in a closed system when such unsigned content is executing on the system. For example, an application programming interface is used between an access layer implementing unsigned content and an operating system of the closed system. The application programming interface may have sub-interfaces that correspond to sub-layers of the access layer, including a graphics sub-interface, an audio sub-interface, an input sub-interface, and a storage sub-interface. These sub-interfaces present access calls made by the sub-layers to the protected resources of the closed system. By providing the application programming interface, unsigned content, e.g., video games can run on a closed system that is typically designed to run only signed content.