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Bit Whisperer: Enabling Ad-hoc, Short-range, Walk-Up-and-Share Data Transmissions via ...

on YouTube 08m
Talkat UIST 2021 · 2021-10-10..10-14· [security]

speakers

name:Youngwook Do
links:none on file
name:Siddhant Singh
links:none on file
name:Zhouyu Li
links:none on file
name:Steven R Craig
links:none on file
name:Phoebe J Welch
links:none on file
name:Chengzhi Shi
links:none on file
name:Thad E. Starner
links:none on file
name:Gregory D. Abowd
links:none on file
name:Sauvik Das
links:none on file

resources

video:https://youtu.be/8zQGbK82zII
slides:none on file

summary

Bit Whisperer sends short messages via inaudible surface-restricted acoustics (18–20 kHz) using frequency-shift keying, forward error correction and encryption; lab simulations show on-table receivers get almost twice the acoustic pressure versus off-table, and 8 usable channels carry 8‑bit ASCII. Built prototype repurposes commodity phones and tables, secures 1‑to‑1 and 1‑to‑N sharing and device unlocking, and empirical tests show attackers 1 m away at 60°–90° fail to recover decrypted payload. inaudible surface-constrained channel FEC plus encryption.

AI-written summary · about

chapters (6)

  1. 0:00Intro
  2. 0:31Whispering: Secret Sharing in the Physical World
  3. 1:42Bit Whisperer - Digital Whispering
  4. 3:55Implementation
  5. 6:04System Evaluations
  6. 7:16Example Applications

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