Covert Channels in One-Time Passwords Based on Hash Chains
EICC 2020: Proceedings of the European Interdisciplinary Cybersecurity Conference. New York City: ACM 2020 S. 1 - 2
Erscheinungsjahr: 2020
ISBN/ISSN: 9781450375993
Publikationstyp: Buchbeitrag (Konferenzbeitrag)
Sprache: Englisch
Doi/URN: 10.1145/3424954.3424966
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Inhaltszusammenfassung
We present a covert channel between two network devices where one authenticates itself with Lamport's one-time passwords based on a cryptographic hash function. Our channel enables plausible deniability. We also present countermeasures to detect the presence of such a covert channel, which are non-trivial because hash values are randomly looking binary strings, so that deviations are not likely to be detected.
Klassifikation
DFG Fachgebiet:
Informatik
DDC Sachgruppe:
Informatik
