Скачать или смотреть Acoustic Integrity Codes | ACM WiSec 2020

In this talk at WiSec 2020, I introduce Acoustic Integrity Codes: a wireless physical layer that achieves message authentication using the acoustic interface, which is commonly available on smartphones and IoT devices. My open-source prototype implementation demonstrates device pairing with off-the-shelf smartphones and runs from user space without requiring firmware or hardware modifications.

F. Putz, F. Álvarez, J. Classen. Acoustic Integrity Codes: Secure Device Pairing Using Short-Range Acoustic Communication. 13th ACM Conference on Security and Privacy in Wireless and Mobile Networks. July 2020. https://doi.org/10.1145/3395351.3399420

Get the PDF here: https://fputz.net/wisec20acoustic/pdf

Check out the source code: https://fputz.net/wisec20acoustic/code


00:00 Introduction
00:35 Motivating Example
01:00 Existing Approaches
01:42 No Universal Pairing Interface
01:52 Acoustic Communication
02:23 Adversary Model
03:18 Related Work
04:38 Acoustic Integrity Codes
05:12 Example TX
06:58 Example RX
07:24 Attacks (Overshadowing, Signal Cancellation)
08:36 Signal Cancellation
09:49 Signal Cancellation: Attacker Distance
10:56 Signal Cancellation: Signal Shape
13:21 Implementation
14:51 Demo
17:00 Conclusion