Title
Enabling Privacy-Preserving, Compute- and Data-Intensive Computing using Heterogeneous Trusted Execution Environment.
Abstract
There is an urgent demand for privacy-preserving techniques capable of supporting compute and data intensive (CDI) computing in the era of big data. However, none of existing TEEs can truly support CDI computing tasks, as CDI requires high throughput accelerators like GPU and TPU but TEEs do not offer security protection of such accelerators. This paper present HETEE (Heterogeneous TEE), the first design of TEE capable of strongly protecting heterogeneous computing with unsecure accelerators. HETEE is uniquely constructed to work with todayu0027s servers, and does not require any changes for existing commercial CPUs or accelerators. The key idea of our design runs security controller as a stand-alone computing system to dynamically adjust the boundary of between secure and insecure worlds through the PCIe switches, rendering the control of an accelerator to the host OS when it is not needed for secure computing, and shifting it back when it is. The controller is the only trust unit in the system and it runs the custom OS and accelerator runtimes, together with the encryption, authentication and remote attestation components. The host server and other computing systems communicate with controller through an in memory task queue that accommodates the computing tasks offloaded to HETEE, in the form of encrypted and signed code and data. Also, HETEE offers a generic and efficient programming model to the host CPU. We have implemented the HETEE design on a hardware prototype system, and evaluated it with large-scale Neural Networks inference and training tasks. Our evaluations show that HETEE can easily support such secure computing tasks and only incurs a 12.34% throughput overhead for inference and 9.87% overhead for training on average.
Year
Venue
DocType
2019
arXiv: Cryptography and Security
Journal
Volume
Citations 
PageRank 
abs/1904.04782
0
0.34
References 
Authors
0
12
Name
Order
Citations
PageRank
Jianping Zhu120.70
Rui Hou24511.05
Xiaofeng Wang32543161.68
Wenhao Wang46010.80
Jiangfeng Cao520.70
Lutan Zhao601.69
Fengkai Yuan742.78
Peinan Li8101.83
Zhongpu Wang900.34
Boyan Zhao1021.37
Lixin Zhang1138827.46
Dan Meng1247667.10