Physical−layer integrity for wireless messages

<p>In this work, we discuss physical layer message manipulation attacks, in which an attacker changes physical-layer properties of an original wireless message. Instead of targeting the data content of the message, those attacks target message properties such as time-of-arrival, signal strengt...

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Main Authors: Tippenhauer, N, Rasmussen, K, Capkun, S
Format: Journal article
Published: Elsevier 2016
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author Tippenhauer, N
Rasmussen, K
Capkun, S
author_facet Tippenhauer, N
Rasmussen, K
Capkun, S
author_sort Tippenhauer, N
collection OXFORD
description <p>In this work, we discuss physical layer message manipulation attacks, in which an attacker changes physical-layer properties of an original wireless message. Instead of targeting the data content of the message, those attacks target message properties such as time-of-arrival, signal strength, angle-of-arrival, and others. As such attacks do not change the data content, they do not violate the message’s data integrity. Instead, we introduce the notion of physicallayer message integrity (PMI), that describes the absence of manipulations for physical-layer message characteristics.</p> <p>Among the different physical-layer characteristics, we focus on delay attacks in which an attacker delays a message sent from victim A to a nearby victim B. Such attacks can be used on time-synchronization, distance measurement, and other time-sensitive measurements such as phasor measurements in power grids. In that context, we speak of message temporal integrity (MTI) as characteristic targeted by the attack. Informally, MTI is preserved if the message is neither advanced nor delayed in transmission. We discuss how to detect attacks on MTI, and propose a message temporal integrity protocol based on special message encoding, modulation, and detection.</p>
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spelling oxford-uuid:e0f6aaf7-7787-4ab0-a090-57ee6cd2c8a12022-03-27T09:51:06ZPhysical−layer integrity for wireless messagesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e0f6aaf7-7787-4ab0-a090-57ee6cd2c8a1Symplectic Elements at OxfordElsevier2016Tippenhauer, NRasmussen, KCapkun, S<p>In this work, we discuss physical layer message manipulation attacks, in which an attacker changes physical-layer properties of an original wireless message. Instead of targeting the data content of the message, those attacks target message properties such as time-of-arrival, signal strength, angle-of-arrival, and others. As such attacks do not change the data content, they do not violate the message’s data integrity. Instead, we introduce the notion of physicallayer message integrity (PMI), that describes the absence of manipulations for physical-layer message characteristics.</p> <p>Among the different physical-layer characteristics, we focus on delay attacks in which an attacker delays a message sent from victim A to a nearby victim B. Such attacks can be used on time-synchronization, distance measurement, and other time-sensitive measurements such as phasor measurements in power grids. In that context, we speak of message temporal integrity (MTI) as characteristic targeted by the attack. Informally, MTI is preserved if the message is neither advanced nor delayed in transmission. We discuss how to detect attacks on MTI, and propose a message temporal integrity protocol based on special message encoding, modulation, and detection.</p>
spellingShingle Tippenhauer, N
Rasmussen, K
Capkun, S
Physical−layer integrity for wireless messages
title Physical−layer integrity for wireless messages
title_full Physical−layer integrity for wireless messages
title_fullStr Physical−layer integrity for wireless messages
title_full_unstemmed Physical−layer integrity for wireless messages
title_short Physical−layer integrity for wireless messages
title_sort physical layer integrity for wireless messages
work_keys_str_mv AT tippenhauern physicallayerintegrityforwirelessmessages
AT rasmussenk physicallayerintegrityforwirelessmessages
AT capkuns physicallayerintegrityforwirelessmessages