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Publikationen von Professorinnen und Professoren der HAW Hamburg

Jahr:  
Alle : 2018
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Alle : A, À, B, C, D, E, F, G, H, I, J, K, L, M, N, O, Ö, P, Q, R, S, T, U, V, W, Y, Z 
Alle : A. Baset, ... , Amancio-Filho, Amann, Ammon, ... , Azeiteiro 
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Quirin Scheitle, Oliver Gasser, Theodor Nolte, Johanna Amann, Lexi Brent, Georg Carle, Ralph Holz, Thomas C. Schmidt und Matthias Wählisch
The Rise of Certificate Transparency and Its Implications on the Internet Ecosystem
Internet Measurement Conference - IMC
Boston, MA
Proc. of ACM Internet Measurement Conference (IMC 2018) , Seite 343--349.
Association of the Computing Machinery
Verlag: ACM Digital Library, New York, NY, USA

Marker: TI-I

Zusammenfassung: In this paper, we analyze the evolution of Certificate Transparency (CT) over time and explore the implications of exposing certificate DNS names from the perspective of security and privacy. We find that certificates in CT logs have seen exponential growth. Website support for CT has also constantly increased, with now a majority of established connections supporting CT. With the increasing deployment of CT, there are also concerns of information leakage due to all certificates being visible in CT logs. To understand this threat, we introduce a CT honeypot and show that data from CT logs is being used to identify targets for scanning campaigns only minutes after certificate issuance. We present and evaluate a methodology to learn and validate new subdomains from the vast number of domains extracted from CT logged certificates.

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