this post was submitted on 15 May 2024
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Direct PDF link
I mean, I read the PDF, the problem was the viewer bogging down.
googles
This sounds like what I expected:
https://superuser.com/questions/1060831/triming-as-alternative-to-securely-erasing-a-ssd
EDIT: I took a look at your PDF on a desktop. While it's pretty light on the specifics of how they tested that the data was present, nothing there talks about anything below the OS level. My expectation is that what they did for their test was try to do reads from the device at the OS level and see whether it returned zeroes. They aren't going to look below that. If they were interfacing with the drive at a firmware or below level, I'd expect them to have mentioned it, as it'd be a significant amount of additional work. And they don't list relevant information like model number, much less firmware revision on the drive.
This is a complete digression but do you know if there is a consumer hardware that can be reliably erased? I'm trying to make something behave as an affordable HSM. If I could store a key encrypted at rest and be able to actually delete it, that would work for me.
Like, to create a hardware keystore? No, I don't, sorry. If I wanted one myself, I'd probably just buy an existing one and hope that they did things correctly. :-)