Title: Delayed authentication and delayed measurement application in one-way synchronization
Authors: Teichel, Kristof, Physikalisch-Technische Bundesanstalt (PTB), Fachbereich 4.4, Zeit und Frequenz
Sibold, Dieter, Physikalisch-Technische Bundesanstalt (PTB), Referat Q.4, Informationstechnologie
Hildemeier, Gregor, Technische Universit├Ąt Braunschweig, Braunschweig, GERMANY
Contributors: HostingInstitution: Physikalisch-Technische Bundesanstalt (PTB), ISNI: 0000 0001 2186 1887
Pages:7
Language:en
DOI:10.7795/EMPIR.17IND06.CA.20190410A
Resource Type: Text / Article
Publisher: Physikalisch-Technische Bundesanstalt (PTB)
Rights: Private use is allowed for non-profit purposes only.
Relationships: IsVariantFormOf: DOI 10.1109/ISPCS.2018.8543083
Dates: Available: 2019-04-11
Created: 2018-09
File: Download File (application/pdf) 301.14 kB (308370 Bytes)
MD5 Checksum: 102b4bdd1187af5a5d8e28c4a0a445ca
SHA256 Checksum: fe0c4064d85d5935060ec3e107a6c437f4f94db1605aa7c95e9d4cc3fec408d5
Keywords: time synchronization ; Network Time Security (NTS) ; Time Security ; security ; authentication ; integrity ; Network Time Protocol (NTP)
Abstract: We have performed an analysis of an attack vector regarding one-way time synchronization protocols protected by TESLA-like mechanisms. In this paper, we present our testbed implementation that allows simulation of such protocols to take place, and we give an overview of the results regarding vulnerability of existing protocols, potential countermeasures, and relevance to specifications currently in development. We omit much of the cryptography-related details of our security analysis in favor of specifics regarding the effects and pitfalls related to the delayed authentication used by all TESLA-like protection mechanisms. We place particular emphasis on implications concerning the security and time performance of immediate versus delayed measurement application where this occured in our evaluation.
Citation: K. Teichel, D. Sibold and G. Hildermeier, "Delayed Authentication and Delayed Measurement Application in One-Way Synchronization," 2018 IEEE International Symposium on Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS), Geneva, 2018, pp. 1-6. doi: 10.1109/ISPCS.2018.8543083