[dm-crypt] How to derive master key in plain dm-crypt mode

Jian-Ming Zheng jmzheng at gmail.com
Wed Dec 10 12:48:35 CET 2014


In plain dm-crypt mode, there is no encrypted master key on the device
(i.e., no metadata header). Is a master key derived from the user
passphrase and used to en-/decrypt the device? If yes, how to derive
the master key from the passphrase in plain mode?


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