Secure Runtime Graphics Rendering for Web Apps
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Solution Overview
Problem
Web applications lack the capability to utilize graphics hardware acceleration, limiting their graphics performance and rendering capabilities compared to native applications, while existing browser plugins that address this issue are insecure and cumbersome to install, posing security vulnerabilities.
Innovation Solution
A system that loads a native code module with a scenegraph renderer into a secure runtime environment, generates rendering commands, and executes them using a GPU, ensuring secure and efficient graphics rendering for web applications by validating the native code module and using inter-module communication buffers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If web applications use software-based graphics rendering on CPUs, then security and platform compatibility are improved, but graphics performance and rendering capabilities deteriorate
Solution Approach 1:
A plugin acts as an intermediary component that bridges web applications and graphics hardware. The plugin contains a native code module that can directly interface with GPUs while being loaded into a secure runtime environment, thus providing hardware acceleration without requiring web applications to have direct access to native system resources.
Solution Approach 2:
The system is segmented into distinct components: the web application layer, the plugin layer with secure runtime environment, and the graphics hardware layer. This segmentation allows each layer to operate independently with appropriate security constraints while achieving the desired functionality through controlled interaction between layers.
2Productivity
If web applications use browser plugins with native code for graphics rendering, then graphics performance is improved, but security vulnerabilities and installation complexity increase
Solution Approach 1:
The secure runtime environment acts as a mediator between the potentially insecure native code and the rest of the browser system. It provides a controlled execution context that validates and isolates the native code module, preventing security vulnerabilities from propagating to the browser core while still enabling hardware-accelerated graphics rendering.
Solution Approach 2:
Security constraints and validation mechanisms are applied locally at the plugin level rather than requiring system-wide security changes. The secure runtime environment implements specific security policies for the native code module execution, allowing graphics performance improvement without compromising overall system security architecture.
3Reliability
If browser plugins require restart for installation, then security control is improved, but user experience and ease of operation deteriorate
Solution Approach 1:
Security validation and approval processes are performed preliminarily during the plugin installation and activation phase, rather than requiring repeated interruptions during usage. The secure runtime environment is established upfront, and subsequent native code module loads are handled within this pre-configured secure context, improving user experience while maintaining security control.
Data Source
AI summary
A native code module is executed in a secure runtime environment that prevents the first code module from accessing a graphics rendering interface outside of the secure runtime environment. Rendering commands are generated using the native code module based on a scene representation, and transmitted from the native code module within the secure runtime environment to a trusted code module outside the secure runtime environment. The trusted code module is configured to communicate with the graphics rendering interface to provide graphics acceleration, and a rendered image is rendered using the trusted second code module and graphics hardware based on execution of the rendering commands outside the secure runtime environment.