6533b82cfe1ef96bd129015c
RESEARCH PRODUCT
Nanovised Control Flow Attestation
Nezer Jacob ZaidenbergMichael KiperbergRaz Ben Yehudasubject
Fluid Flow and Transfer ProcessespääsynvalvontaSoftware_OPERATINGSYSTEMSvirtualisointiProcess Chemistry and TechnologyLinuxhypervisor; ARM; Linux; control flow; SlowLoris; TrustZoneSlowLorisGeneral EngineeringTrustZonecontrol flowComputer Science ApplicationsARMGeneral Materials SciencehypervisortietoturvaInstrumentationdescription
This paper presents an improvement of control flow attestation (C-FLAT) for Linux. C-FLAT is a control attestation system for embedded devices. It was implemented as a software executing in ARM’s TrustZone on bare-metal devices. We extend the design and implementation of C-FLAT through the use of a type 2 Nanovisor in the Linux operating system. We call our improved system “C-FLAT Linux”. Compared to the original C-FLAT, C-FLAT Linux reduces processing overheads and is able to detect the SlowLoris attack. We describe the architecture of C-FLAT Linux and provide extensive measurements of its performance in benchmarks and real-world scenarios. In addition, we demonstrate the detection of the SlowLoris attack on the Apache web server.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2022-03-04 | Applied Sciences; Volume 12; Issue 5; Pages: 2669 |