Preprint Open Access

SCONE: Secure Linux Containers with Intel SGX

Arnautov, Sergei; Trach, Bohdan; Gregor, Franz; Knauth, Thomas; Martin, Andrè; Priebe, Christian; Muthukumaran, Divya; O'Keeffe, Dan; Stillwell, Mark; Goltzsche, David; Eyers, David; Kapitza, Rüdiger; Pietzuch, Peter; Fetzer, Christof

In multi-tenant environments, Linux containers managed by Docker or Kubernetes have a lower resource footprint, faster startup times, and higher I/O performance compared to virtual machines (VMs) on hypervisors. Yet their weaker isolation guarantees, enforced through software kernel mechanisms, make it easier for attackers to compromise the confidentiality and integrity of application data within containers.

We describe SCONE, a secure container mechanism for Docker that uses the SGX trusted execution support of Intel CPUs to protect container processes from outside attacks. The design of SCONE leads to (i) a small trusted computing base (TCB) and (ii) a low performance overhead: SCONE offers a secure C standard library interface that transparently encrypts/decrypts I/O data; to reduce the performance impact of thread synchronization and system calls within SGX enclaves, SCONE supports user-level threading and asynchronous system calls. Our evaluation shows that it protects unmodified applications with SGX, achieving 0.6× – 1.2× of native throughput.

Files (384.4 kB)
Name Size
osdi2016scone-preprint.pdf
md5:6815ddc1287870ab7541abd7b9957bda
384.4 kB Download
77
54
views
downloads
All versions This version
Views 7777
Downloads 5454
Data volume 20.8 MB20.8 MB
Unique views 7575
Unique downloads 5050

Share

Cite as