EmLog: Tamper-Resistant System Logging for Constrained Devices with TEEs - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Conference Papers Year : 2018

EmLog: Tamper-Resistant System Logging for Constrained Devices with TEEs

Carlton Shepherd
  • Function : Author
  • PersonId : 1036547
Raja Naeem Akram
  • Function : Author
  • PersonId : 1036545

Abstract

Remote mobile and embedded devices are used to deliver increasingly impactful services, such as medical rehabilitation and assistive technologies. Secure system logging is beneficial in these scenarios to aid audit and forensic investigations particularly if devices bring harm to end-users. Logs should be tamper-resistant in storage, during execution, and when retrieved by a trusted remote verifier. In recent years, Trusted Execution Environments (TEEs) have emerged as the go-to root of trust on constrained devices for isolated execution of sensitive applications. Existing TEE-based logging systems, however, focus largely on protecting server-side logs and offer little protection to constrained source devices. In this paper, we introduce EmLog – a tamper-resistant logging system for constrained devices using the GlobalPlatform TEE. EmLog provides protection against complex software adversaries and offers several additional security properties over past schemes. The system is evaluated across three log datasets using an off-the-shelf ARM development board running an open-source, GlobalPlatform-compliant TEE. On average, EmLog runs with low run-time memory overhead (1 MB heap and stack), 430–625 logs/second throughput, and five-times persistent storage overhead versus unprotected logs.
Fichier principal
Vignette du fichier
469589_1_En_5_Chapter.pdf (919.29 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-01875526 , version 1 (17-09-2018)

Licence

Attribution

Identifiers

Cite

Carlton Shepherd, Raja Naeem Akram, Konstantinos Markantonakis. EmLog: Tamper-Resistant System Logging for Constrained Devices with TEEs. 11th IFIP International Conference on Information Security Theory and Practice (WISTP), Sep 2017, Heraklion, Greece. pp.75-92, ⟨10.1007/978-3-319-93524-9_5⟩. ⟨hal-01875526⟩
260 View
49 Download

Altmetric

Share

Gmail Facebook X LinkedIn More