POSTER: WiPING: Wi-Fi Signal-Based PIN Guessing Attack
Authors: Seunghun Cha, Jaewoo Park, Geumhwan Cho, Jun Ho Huh, Hyoungshick Kim

Date: October 24 2016
Publication: Proceedings of the 2016 ACM SIGSAC Conference on Computer and Communications Security (CCS '16)
Page(s): 1835 - 1837
Publisher: ACM
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Abstract or Summary:
This paper presents a new type of online password guessing attack called "WiPING" (Wi-Fi signal-based PIN Guessing attack) to guess a victim's PIN (Personal Identification Number) within a small number of unlock attempts. WiPING uses wireless signal patterns identified from observing sequential finger movements involved in typing a PIN to unlock a mobile device. A list of possible PIN candidates is generated from the wireless signal patterns, and is used to improve performance of PIN guessing attacks. We implemented a proof-of-concept attack to demonstrate the feasibility of WiPING. Our results showed that WiPING could be practically effective: while pure guessing attacks failed to guess all 20 PINs, WiPING successfully guessed two PINs.

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