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So modern solid-state drives often support OPAL standard for full-disk encryption. If I understand correctly, it uses a user password to encrypt a key which is then in turn used to encrypt content of the drive. But my question is how is this encryption key generated? Many attacks are possible if a random source for this key generation is not truly random. Looking at Linux utility sedutil I can see only commands to change a password. But when is the key generated? Or how do I force key regeneration? Can I supply my own key so that I can be sure it was properly generated?

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