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by aborsy
657 days ago
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LUKS has several key slots. As someone said, it’s quite simple, the data encryption key is encrypted with multiple keys and stored in different slots. You can encrypt the data encryption key with, say, any 2 keys out of 3. You concatenate any two keys into a single key, and encrypt the master key with that. That gives you Shamir scheme, that used in crypto currencies. |
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