Why does bitlocker password only need a recovery key? (lemmy.dbzer0.com)

submitted 4 weeks ago* (last edited 4 weeks ago) by dhkuq3645@lemmy.dbzer0.com to c/windows11@lemmy.world

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It's password only, non tpm and it still creates a recovery key. Why tho?

linux doesn't do that when using LUKS encryption. trust me I'd love to switch, but can't.

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[-] Object@sh.itjust.works 4 points 4 weeks ago* (last edited 3 weeks ago)

So that you can decrypt in case you forget the password, of course. You can also do that in LUKS it seems. IIRC, hash of your password encrypts Volume Master Key, and another copy of VMK is encrypted with your recovery key. If you use a TPM, VMK is stored inside it instead of storing an VMK encrypted with your password.

this post was submitted on 11 Sep 2026

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