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- W97978752 abstract "In the past decade Graphics Processing Units (GPUs) have advanced from simple fixedfunction graphics accelerators to fully-programmable multi-core architectures capable of supporting thousand of concurrent threads. Their use has spread from the specialized field of graphics into more general processing domains ranging from biomedical imaging to stock market prediction. Despite their increased computational power and range of applications, the security implications of GPUs have not been carefully studied. It has been assumed that the use of a GPU as a coprocessor with physically separate memory space, minimal support for multi-user programming, and limited I/O capability inherently guarantees security. This research challenges this assumption by demonstrating multiple security vulnerabilities in the current GPU computing infrastructure. Specifically, it focuses on the following three areas: 1. Denial-of-Service by overwhelming the capabilities of the GPU so it is unable to provide responsiveness to the host operating system. 2. Information leakage due to the way that modern GPUs fail to randomize pointers and zero out memory. 3. The use of GPUs to assist CPU-resident malware through obfuscation and unpacking or acceleration of computational intensive tasks such as password cracking or encryption. Through the use of WebGL and CUDA, we successfully developed a proof of concept attack for the first two vulnerabilities listed above. For the third, we considered several different types of attacks and their implications. In all cases we also suggest possible security measures to fix these vulnerabilities. While the impact of each of these particular exploits is currently hardware and OS specific, current trends in GPU architecture indicate that these problems are only going to rise in importance going forward." @default.
- W97978752 created "2016-06-24" @default.
- W97978752 creator A5012062599 @default.
- W97978752 date "2018-08-10" @default.
- W97978752 modified "2023-09-23" @default.
- W97978752 title "Vulnerability analysis of GPU computing" @default.
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- W97978752 doi "https://doi.org/10.31274/etd-180810-3178" @default.
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