highlighted projects
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CloudLab
Many of the ideas that drive modern cloud computing, such as server virtualization, network slicing, and robust distributed storage, arose from the research community. Despite this success, today’s clouds have become environments that are unsuitable for moving this research agenda forward—they have particular, unmalleable implementations of these ideas “baked in.” CloudLab will not be a cloud; it will be large-scale, distributed scientific infrastructure on top of which many different clouds can be built.
A3
The A3 project applies virtualization, record-and-replay, introspection, repair, and other techniques to develop a customizable container for “advanced adaptive applications.” The A3 container provides its protected application with both innate and adaptive defenses against security threats.
TCloud
In the TCloud project we are developing a self-defending, self-evolving, and self-accounting trustworthy cloud platform. Our approach in realizing TCloud holds to the following five tenets: defense in depth, least authority, explicit orchestration of security function, moving-target defense, and verifiable accountability.
XCap
We are creating XCap, a secure environment for least-authority execution of applications and system services. Unmodified, untrusted, off-the-shelf applications, running on untrusted operating systems, are isolated by a virtual machine manager. XCap brings the power of a capability-based security system to Xen, building on two principles: strong isolation and secure collaboration.
Emulab
Emulab is a network testbed, giving researchers a wide range of environments in which to develop, debug, and evaluate their systems. The Emulab facility at the University of Utah has over 600 PCs, a hundred wireless devices, and dozens of switches. It is used by thousands of researchers at hundreds of institutions worldwide. The software that we built to run Emulab is open source, and is used as part of dozens of network testbeds across the globe.
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research areas
group seminar
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recent publications
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Reactive Interference Management for Radio Astronomy in Radio Dynamic Zones Using ASTRA
Aarushi Sarbhai,
David Johnson,
Kirk Webb,
Leigh Stoller,
Oren Collaco,
Alex Orange,
Samuel Zachary,
Bo Pearce,
Serhat Tadik,
Sylvia Llosa,
Arvind Aradhya,
Alexander Pollak,
Wael Farah,
Jacobus (Kobus) Van der Merwe,
Kevin Gifford,
Neal Patwari,
Gregory Durgin,
David DeBoer, and
Sneha Kumar Kasera
In IEEE DySPAN 2025 [
pdf ::
bibtex
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Building Radio Dynamic Zones with OpenZMS
David Johnson,
Dustin Maas,
Serhat Tadik,
Alex Orange,
Leigh Stoller,
Kirk Webb,
Muhammad Basit Iqbal Awan,
Jacob Bills,
Miguel Gomez,
Aarushi Sarbhai,
Gregory Durgin,
Sneha Kumar Kasera,
Neal Patwari,
David Schurig, and
Jacobus (Kobus) Van der Merwe
In IEEE TCCN 2025 [
bibtex
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POWDER-RDZ: Prototyping a Radio Dynamic Zone using the POWDER platform
David Johnson,
Dustin Maas,
Serhat Tadik,
Alex Orange,
Leigh Stoller,
Kirk Webb,
Muhammad Basit Iqbal Awan,
Jacob Bills,
Miguel Gomez,
Aarushi Sarbhai,
Greg Durgin,
Sneha Kumar Kasera,
Neal Patwari,
David Schurig, and
Jacobus (Kobus) Van der Merwe
In IEEE DySPAN 2024 ( award paper)
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pdf ::
bibtex
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