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this post was submitted on 06 Jul 2024
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Privacy
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While it would certainly be nice to see this addressed, I don't recall Signal ever claiming their desktop app provided encryption at rest. I would also think that anyone worried about that level of privacy would be using disappearing messages and/or regularly wiping their history.
That said, this is just one of the many reasons why whole disk encryption should be the default for all mainstream operating systems today, and why per-app permissions and storage are increasingly important too.
Does encrypting your disks change something for the end user in day to day usage? I'm honest, I've never used encrypted disks in my life.
No, the average user will never know the difference. I couldn't tell you exactly what the current performance impact is for hardware encryption, but it's likely around 1-4% depending on the platform (I use LUKS under Linux).
For gamers, it's likely a 1-5 FPS loss, depending on your hardware, which is negligible in my experience. I play mostly first and third person shooter-style games at 1440p/120hz, targeting 60-90 FPS, and there's no noticeable impact (Ryzen 5600 / RX 6800XT).
I highly doubt it... would love to see some hard data on that. Most algorithms used for disk encryption these days are already faster than RAM, and most games are not reading gigabytes/sec from the disk every frame during gameplay for this to ever matter.