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Research

Academic Publications, CVD Contributions, Press Coverage


Publications


  • Cryptanalysis of the GPRS Encryption Algorithms GEA-1 and GEA-2
    Christof Beierle, Patrick Derbez, Gregor Leander, Gaëtan Leurent, Håvard Raddum, Yann Rotella, David Rupprecht, and Lukas Stennes
    Eurocrypt '21
  • 5G SUCI-Catchers: Still Catching Them All?
    Merlin Chlosta, David Rupprecht, Christina Pöpper, and Thorsten Holz
    WiSec '21
    Talk
  • On the Challenges of Automata Reconstruction in LTE Networks
    Merlin Chlosta, David Rupprecht, and Thorsten Holz
    WiSec '21
    Talk
  • Call Me Maybe: Eavesdropping Encrypted LTE Calls With ReVoLTE
    David Rupprecht, Katharina Kohls, Thorsten Holz, and Christina Pöpper
    USENIX '20
    Demo Website
  • IMP4GT: IMPersonation Attacks in 4G NeTworks
    David Rupprecht, Katharina Kohls, Thorsten Holz, and Christina Pöpper
    NDSS '20
    Demo (Uplink) Demo (Downlink) Website BlackHat Talk NDSS Talk
  • Breaking LTE on Layer Two
    David Rupprecht, Katharina Kohls, Thorsten Holz, and Christina Pöpper
    SP '19
    Demo Website Talk

CVDs


  • CVD-2020-0041
    GSMA Mobile Security Research Acknowledgements
  • CVD-2019-0030
    GSMA Mobile Security Research Acknowledgements
  • CVD-2019-0024
    GSMA Mobile Security Research Acknowledgements
  • CVD-2018-0013
    GSMA Mobile Security Research Acknowledgements
  • CVD-2018-0008
    GSMA Mobile Security Research Acknowledgements

Press Coverage


  • ReVoLTE
    • ReVoLTE attack can decrypt 4G (LTE) calls to eavesdrop on conversations [1]
    • ReVoLTE an attack that allows to intercept calls encrypted in LTE [2]
    • REVOLTE ATTACK [3]
    • ReVoLTE Attack Allows Hackers to Listen in on Mobile Calls [4]
    • ReVoLTE Attack Allows Eavesdropping of Encrypted 4G (LTE) Calls [5]
    • ReVoLTE Attack Encrypted Voice Calls Interception [6]
  • imp4Gt
    • Mobile Networks Vulnerable to IMP4GT Impersonation Attacks [1]
    • IMPersonation Attacks in 4G neTworks – IMP4GT [2]
    • IMP4GT: IMPersonation Attacks in 4G NeTworks [3]
    • IMP4GT – A New IMPersonation Attacks in 4G NeTworks Let Hackers To Inject Arbitrary Packets & Break LTE Network Security [4]
  • aLTEr
    • Breaking LTE on Layer Two – DNS Over TLS Response [1]
    • aLTEr: POC Exploit of LTE Layer Two [2]
    • aLTEr: Attack every smartphone via LTE [3]
    • Protecting iOS against the aLTEr attacks [4]
    • aLTEr Attack: Discovering that LTE connectivity is not that secure [5]