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HEALED: HEaling & Attestation for Low-end Embedded Devices

Ibrahim, Ahmad and Sadeghi, Ahmad-Reza and Tsudik, Gene (2019):
HEALED: HEaling & Attestation for Low-end Embedded Devices.
In: 23rd International Conference Financial Cryptography and Data Security (FC 2019), 2019, [Conference or Workshop Item]

Abstract

We are increasingly surrounded by numerous embedded systems which collect, exchange, and process sensitive and safety-critical information. The Internet of Things (IoT) allows a large number of interconnected devices to be accessed and controlled remotely, across existing network infrastructure. Consequently, a remote attacker can exploit security vulnerabilities and compromise these systems. In this context, remote attestation is a very useful security service that allows to remotely and securely verify the integrity of devices’ software state, thus allowing the detection of potential malware on the device. However, current attestation schemes focus on detecting whether a device is infected by malware but not on disinfecting it and restoring its software to a benign state. In this paper we present HEALED – the first remote attestation scheme for embedded devices that allows both detection of software compromise and disinfection of compromised devices. HEALED uses Merkle Hash Trees (MHTs) for measurement of software state, which allows restoring a device to a benign state in a secure and efficient manner.

Item Type: Conference or Workshop Item
Erschienen: 2019
Creators: Ibrahim, Ahmad and Sadeghi, Ahmad-Reza and Tsudik, Gene
Title: HEALED: HEaling & Attestation for Low-end Embedded Devices
Language: English
Abstract:

We are increasingly surrounded by numerous embedded systems which collect, exchange, and process sensitive and safety-critical information. The Internet of Things (IoT) allows a large number of interconnected devices to be accessed and controlled remotely, across existing network infrastructure. Consequently, a remote attacker can exploit security vulnerabilities and compromise these systems. In this context, remote attestation is a very useful security service that allows to remotely and securely verify the integrity of devices’ software state, thus allowing the detection of potential malware on the device. However, current attestation schemes focus on detecting whether a device is infected by malware but not on disinfecting it and restoring its software to a benign state. In this paper we present HEALED – the first remote attestation scheme for embedded devices that allows both detection of software compromise and disinfection of compromised devices. HEALED uses Merkle Hash Trees (MHTs) for measurement of software state, which allows restoring a device to a benign state in a secure and efficient manner.

Uncontrolled Keywords: Solutions; S2
Divisions: 20 Department of Computer Science
20 Department of Computer Science > System Security Lab
DFG-Collaborative Research Centres (incl. Transregio)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
Profile Areas
Profile Areas > Cybersecurity (CYSEC)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 1119: CROSSING – Cryptography-Based Security Solutions: Enabling Trust in New and Next Generation Computing Environments
Event Title: 23rd International Conference Financial Cryptography and Data Security (FC 2019), 2019
Date Deposited: 28 Jan 2019 07:31
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