T-Lease: A trusted lease primitive for distributed systems

10Citations
Citations of this article
10Readers
Mendeley users who have this article in their library.
Get full text

Abstract

A lease is an important primitive for building distributed protocols, and it is ubiquitously employed in distributed systems. However, the scope of the classic lease abstraction is restricted to the trusted computing infrastructure. Unfortunately, this important primitive cannot be employed in the untrusted computing infrastructure because the trusted execution environments (TEEs) do not provide a trusted time source. In the untrusted environment, an adversary can easily manipulate the system clock to violate the correctness properties of lease-based systems. We tackle this problem by introducing trusted lease - -a lease that maintains its correctness properties even in the presence of a clock-manipulating attacker. To achieve these properties, we follow a "trust but verify"approach for an untrusted timer, and transform it into a trusted timing primitive by leveraging two hardware-assisted ISA extensions (Intel TSX and SGX) available in commodity CPUs. We provide a design and implementation of trusted lease in a system called T-Lease - -the first trusted lease system that achieves high security, performance, and precision. For the application developers, T-Lease exposes an easy-to-use generic APIs that facilitate its usage to build a wide range of distributed protocols.

Cite

CITATION STYLE

APA

Trach, B., Faqeh, R., Oleksenko, O., Ozga, W., Bhatotia, P., & Fetzer, C. (2020). T-Lease: A trusted lease primitive for distributed systems. In SoCC 2020 - Proceedings of the 2020 ACM Symposium on Cloud Computing (pp. 387–400). Association for Computing Machinery, Inc. https://doi.org/10.1145/3419111.3421273

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free