Alec Muffett4d ago
Let Me Explain How a State Actor Could Perform a Denial-of-Service Attack on the Entire UK Government in the Wake of Ofcom “Online Safety Act” Client-Side Scanning
https://alecmuffett.com/article/150401
#ClientSideScanning #NationalSecurity #OnlineSafetyAct #PhotoDna #censorship #surveillance
Let Me Explain How a State Actor Could Perform a Denial-of-Service Attack on the Entire UK Government in the Wake of Ofcom “Online Safety Act” Client-Side Scanning

1/ obtain a hash of abuse material that’s both known & banned; if pervasive as claimed this shouldn’t be hard 2/ use algorithms from this paper to create a cat meme with the same ha…

Dropsafe
Show threadkasperd
Sounds like a case of somebody rolling their own cryptography without knowing what they were doing. Why are they not using a mainstream cryptographic hash that has been analyzed for years without finding vulnerabilities?
Mar 20 at 7:41pmWeb
Show threadAlec Muffett4d ago

@kasperd

If I'm honest: I think the problem stems from the use of the word "hash" when the more precise but verbose "fuzzy matching digital fingerprint" did not carry the desired gravitas.