Путеводитель по Руководству Linux
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   cryptsetup    ( 8 )

управлять обычными dm-crypt и зашифрованными томами LUKS (manage plain dm-crypt and LUKS encrypted volumes)
  Name  |  Synopsis  |  Description  |  Plain dm-crypt or luks?  |  Warning  |  Basic actions  |  Plain mode  |  Luks extension  |  Loop-aes extension  |  Tcrypt (truecrypt-compatible and veracrypt) extension  |  Bitlk (windows bitlocker-compatible) extension (experimental)  |  Miscellaneous  |  Options  |  Examples  |  Return value  |  Notes on passphrase processing for plain mode  |  Notes on passphrase processing for luks  |    Incoherent behavior for invalid passphrases/keys    |  Notes on supported ciphers, modes, hashes and key sizes  |  Notes on passphrases  |  Notes on random number generators  |  Authenticated disk encryption (experimental)  |  Notes on loopback device use  |  Luks2 header locking  |  Deprecated actions  |  Reporting bugs  |

INCOHERENT BEHAVIOR FOR INVALID PASSPHRASES/KEYS

LUKS checks for a valid passphrase when an encrypted partition is unlocked. The behavior of plain dm-crypt is different. It will always decrypt with the passphrase given. If the given passphrase is wrong, the device mapped by plain dm-crypt will essentially still contain encrypted data and will be unreadable.