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  1. Proceedings of the 2013 ACM workshop on Cloud computing security workshop (CCSW '13)
  2. An architecture for concurrent execution of secure environments in clouds
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A versatile code execution isolation framework with security first
Authenticated storage using small trusted hardware
On the (Im)possibility of privately outsourcing linear programming
Structural cloud audits that protect private information
An architecture for concurrent execution of secure environments in clouds
CloudSweeper: enabling data-centric document management for secure cloud archives
Secure pattern matching using somewhat homomorphic encryption
Cloudoscopy: services discovery and topology mapping
Generalized external interaction with tamper-resistant hardware with bounded information leakage
Supporting complex queries and access policies for multi-user encrypted databases
Beyond the ideal object: towards disclosure-resilient order-preserving encryption schemes

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An architecture for concurrent execution of secure environments in clouds

Content Provider ACM Digital Library
Author Marforio, Claudio Capkun, Srdjan Jayaram Masti, Ramya
Abstract We propose an architecture that enables the creation and management of multiple, concurrent secure execution environments on multi-core systems. Our architecture is suitable for use in cloud settings where each user may require an independent secure environment within which he can run his sensitive applications. Our solution effectively scales architectures like Intel TXT which, both on single- and multi-core platforms, support the creation of only one secure environment. Unlike existing solutions that require significant hypervisor participation, our architecture relies on light-weight processor extensions and a novel hardware-based virtualized TPM that supports multiple, concurrent dynamic root of trust requests from different VMs. This, together with the virtualization extensions in modern processors, allows the use of a disengaged hypervisor that is only responsible for VM management (i.e., creation, deletion, startup, shutdown) and is not involved in the creation or management of secure execution environments. Such disengagement not only reduces hypervisor complexity but also its interaction with guest VMs and hence, the risk of system compromise. We show that our architecture provides guest applications independent secure environments within which they can concurrently execute, and protects them against other compromised system components including malicious VMs and peripherals. We also demonstrate the feasibility of realizing our architecture by emulating and testing it using QEMU.
Starting Page 11
Ending Page 22
Page Count 12
File Format PDF
ISBN 9781450324908
DOI 10.1145/2517488.2517489
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2013-11-08
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Tpm Hardware security Intel txt Intel sgx Virtualization Secure execution
Content Type Text
Resource Type Article
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