Corpus ID: 219401590

Knock, Knock. Who's There? On the Security of LG's Knock Codes

@article{Samuel2020KnockKW,
  title={Knock, Knock. Who's There? On the Security of LG's Knock Codes},
  author={Raina Samuel and Philipp Markert and Adam J. Aviv and Iulian Neamtiu},
  journal={ArXiv},
  year={2020},
  volume={abs/2006.03556}
}
  • Raina Samuel, Philipp Markert, +1 author Iulian Neamtiu
  • Published 2020
  • Computer Science
  • ArXiv
  • Knock Codes are a knowledge-based unlock authentication scheme used on LG smartphones where a user enters a code by tapping or "knocking" a sequence on a 2x2 grid. While a lesser used authentication method, as compared to PINs or Android patterns, there is likely a large number of Knock Code users; we estimate, 700,000--2,500,000 in the US alone. In this paper, we studied Knock Codes security asking participants to select codes on mobile devices in three settings: a control treatment, a… CONTINUE READING

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