Paper Info
Title
EActors: Fast and flexible trusted computing using SGX.
Abstract
Novel trusted execution support, as offered by Intel's Software Guard eXtensions (SGX), embeds seamlessly into user space applications by establishing regions of encrypted memory, called enclaves. Enclaves comprise code and data that is executed under special protection of the CPU and can only be accessed via an enclave defined interface. To facilitate the usability of this new system abstraction, Intel offers a software development kit (SGX SDK). While the SDK eases the use of SGX, it misses appropriate programming support for inter-enclave interaction, and demands to hardcode the exact use of trusted execution into applications, which restricts flexibility. This paper proposes EActors, an actor framework that is tailored to SGX and offers a more seamless, flexible and efficient use of trusted execution -- especially for applications demanding multiple enclaves. EActors disentangles the interaction with enclaves and, among them, from costly execution mode transitions. It features lightweight fine-grained parallelism based on the concept of actors, thereby avoiding costly SGX SDK provided synchronisation constructs. Finally, EActors offers a high degree of freedom to execute actors, either untrusted or trusted, depending on security requirements and performance demands. We implemented two use cases on top of EActors: (i) a secure instant messaging service, and (ii) a secure multi-party computation service. Both illustrate the ability of EActors to seamlessly and effectively build secure applications. Furthermore, our performance evaluation results show that securing the messaging service with EActors improves performance compared to the vanilla versions of JabberD2 and ejabberd by up to 40x.
Year
DOI
Venue
2018
10.1145/3274808.3274823
Middleware '18: 19th International Middleware Conference Rennes France December, 2018
Field
DocType
ISBN
Central processing unit,Use case,Trusted Computing,Computer science,Usability,Encryption,Software,User space,Operating system,Software development
Conference
978-1-4503-5702-9
Citations 
PageRank 
References 
0
0.34
30
Authors
6
Name
Order
Citations
PageRank
Vasily A. Sartakov1122.66
Stefan Brenner2544.07
Sonia Ben Mokhtar359644.86
Sara Bouchenak421524.42
Gaël Thomas525616.95
Rüdiger Kapitza673359.72