How secure is merely TRIMing all of a SSD's blocks?

Re:How secure is merely TRIMing all of a SSD's blocks? by gpderetta on Wednesday March 08, 2023 @01:04PM (#35072453)

But the "encryption" need not be cryptographic strength for this, so it might be reversible even without the key. Consider an old cypher with a small key for example.

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Re:How secure is merely TRIMing all of a SSD's blocks? by wmf on Wednesday March 08, 2023 @02:42PM (#35073777)

Everyone is using AES now.

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Re:How secure is merely TRIMing all of a SSD's blocks? by pornel on Wednesday March 08, 2023 @03:14PM (#35074125)

But where's the key?

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Re:How secure is merely TRIMing all of a SSD's blocks? by avianlyric on Wednesday March 08, 2023 @05:29PM (#35075662)

Certainly true, but again, anyone that really cares about data destruction is never going to trust TRIM to destroy their data. At a minimum they’re going to use a mechanism that’s designed to destroy data (Secure Erase), and more likely they’re going to use multiple methods to destroy that data.

If you’re in a situation where you’re thinking that TRIM might be good enough, then you clearly don’t care that much about the data potentially being recovered by sophisticated attacker. You just don’t want it to be trivial to recover that data. In that case, even old cyphers and small keys is probably good enough.

But once again, if your really care about destroying your data, use something’s that’s explicitly designed to destroy data!

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Re:How secure is merely TRIMing all of a SSD's blocks? by soggylaundry on Friday March 10, 2023 @07:09AM (#35093386)

like this? https://i.imgur.com/mW0d1IE.gif

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