cryptsetup 2.3.3
Usage: cryptsetup [OPTION...] <action> <action-specific>
  -v, --verbose                         Shows more detailed error messages
      --debug                           Show debug messages
      --debug-json                      Show debug messages including JSON
                                        metadata
  -c, --cipher=STRING                   The cipher used to encrypt the disk
                                        (see /proc/crypto)
  -h, --hash=STRING                     The hash used to create the encryption
                                        key from the passphrase
  -y, --verify-passphrase               Verifies the passphrase by asking for
                                        it twice
  -d, --key-file=STRING                 Read the key from a file
      --master-key-file=STRING          Read the volume (master) key from file.
      --dump-master-key                 Dump volume (master) key instead of
                                        keyslots info
  -s, --key-size=BITS                   The size of the encryption key
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