https://hackerpaper.kaipfister.de/p/2005.08572/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMThttps://news.ycombinator.com/item?id=24588106urn:hackerpapers:mention:2005.08572:24588106Fri, 25 Sep 2020 09:26:24 GMT<p>Acoustic communication is quite nice for this kind of ad-hoc provisioning, because it doesn&#x27;t require any special hardware or prior pairing. One security issue is that if you do this in public, an attacker could initiate malicious connections and remove your own transmission via signal cancellation. It&#x27;s hard to notice that when using an inaudible frequency band. To defend against this, our research team has described a method to protect the integrity of acoustic communication on the physical layer, without requiring any prior key exchange: https://dl.acm.org/doi/10.1145/3395351.3399420 PDF…</p><p><a href="https://hackerpaper.kaipfister.de/p/2005.08572/">Paper and discussion history</a>. A mention is not an endorsement.</p>cs.CR