Show simple item record

dc.creatorNarula, Lakshay
dc.creatorHumphreys, Todd E.
dc.date.accessioned2018-01-25T17:36:32Z
dc.date.available2018-01-25T17:36:32Z
dc.date.issued2016-04
dc.identifierdoi:10.15781/T2F18SX5H
dc.identifier.urihttp://hdl.handle.net/2152/63204
dc.description.abstractTime transfer is the backbone of all technologies that require synchronization between stations. Wireless time transfer protocols generally employ simple and convenient one-way communication for synchronization of different nodes. However, it is argued that all one-way wireless time transfer protocols are fundamentally vulnerable to replay attacks that compromise timing information. Necessary conditions for security of a twoway time transfer protocol are proposed and proved by contradiction. Furthermore, an example compliant system is presented in detail. The uncertainty in estimation of tropospheric delay using common climatological models is studied and its effect on the accuracy of one-way time transfer and security of two-way time transfer is presented. Analysis of these models suggest that they are adequate for nanosecond-level accurate time transfer over links that are shorter than 10 km, but more sophisticated weather estimation techniques are needed if this accuracy is to be achieved over long distances.en_US
dc.language.isoengen_US
dc.relation.ispartofRadionavigation Laboratory Conference Proceedingsen_US
dc.subjectNarulaen_US
dc.subjectHumphreysen_US
dc.subjectsecure wirelessen_US
dc.subjecttime transferen_US
dc.titleRequirements for Secure Wireless Time Transferen_US
dc.typeConference proceedingsen_US
dc.description.departmentAerospace Engineering and Engineering Mechanicsen_US
dc.rights.restrictionOpenen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record