Dynamic Shader Integrity Verification for Protected GPU Workloads
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Solution Overview
Problem
Shaders in media, 3D, and AI systems face security challenges due to their flexible functionalities, which expose protected media, secure 3D, and confidential AI operations to potential vulnerabilities.
Innovation Solution
Implement dynamic integrity verification of shaders through a hierarchy-based approach that ensures secure execution and isolation of workloads, using trusted execution environments and encryption to protect sensitive operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If shader functionalities are made flexible to support various media, 3D, and AI features, then adaptability and versatility are improved, but security and reliability deteriorate due to increased complexity and vulnerability to unauthorized access
Solution Approach 1:
The system segments shader execution into distinct phases: verification phase where integrity is checked before execution, and execution phase where verified shaders run with isolation. This segmentation allows flexible shader functionalities while maintaining security through structured separation of concerns.
Solution Approach 2:
The system performs preliminary integrity verification of shaders before allowing them to execute. This preliminary action ensures that only verified and trusted shaders are executed, maintaining security while allowing flexible functionality during the execution phase.
2Reliability
If dynamic integrity verification is implemented to protect media, 3D, and AI operations, then security and reliability are improved, but device complexity increases due to additional verification mechanisms
Solution Approach 1:
The verification system is nested within the existing shader execution framework. The verification module is integrated into the graphics processing unit architecture, with verification logic embedded within the execution pipeline, reducing overall system complexity while maintaining protection capabilities.
Solution Approach 2:
The system uses self-service mechanisms where shaders verify their own integrity through embedded verification code or digital signatures before execution. This reduces the need for complex external verification systems and simplifies the overall architecture.
3Reliability
If trusted execution environments are used to isolate workloads, then security is improved, but performance and productivity may deteriorate due to isolation overhead
Solution Approach 1:
The system applies partial isolation mechanisms that provide sufficient security protection without excessive overhead. Instead of complete isolation, the system uses selective isolation for critical operations, allowing optimized execution paths for verified shaders while maintaining security where needed.
Data Source
AI summary
Dynamic integrity verification of shaders for processing of workloads is described. An example of an apparatus includes one or more processors including a GPU, the GPU including circuitry for dynamic verification of shaders; and a memory for storage of data, including data for one or more workloads of the GPU, the one or more processors to identify one or more shaders that can operate on protected content in the one or more workloads; transfer binary blocks of the one or more shaders to a trusted execution environment of the GPU to authenticate the one or more shaders; load hashes for the binary blocks of the one or more shaders into memory; and send a hardware command that points to a first shader of the one or more shaders for dynamic verification of the first shader.