NAME
cryptsetup-tcryptDump - dump the header information of a TCRYPT (TrueCrypt or VeraCrypt compatible) deviceSYNOPSIS
cryptsetup tcryptDump [<options>] <device>DESCRIPTION
Dump the header information of a TCRYPT (TrueCrypt or VeraCrypt compatible) device.OPTIONS
--hash, -h <hash-spec>Specifies the passphrase hash. Applies to
plain and loopaes device types only.
For tcrypt device type, it restricts checked PBKDF2 variants when looking
for header.
Set the cipher specification string for
plain device type.
For tcrypt device type it restricts checked cipher chains when looking
for header.
When interactively asking for a passphrase,
ask for it twice and complain if both inputs do not match. Ignored on input
from file or stdin.
Read the passphrase from file.
If the name given is "-", then the passphrase will be read from stdin.
In this case, reading will not stop at newline characters.
See section NOTES ON PASSPHRASE PROCESSING in cryptsetup(8) for
more information.
Print the volume key in the displayed
information. Use with care, as the volume key can be used to bypass the
passphrases, see also option --volume-key-file.
The number of seconds to wait before timeout
on passphrase input via terminal. It is relevant every time a passphrase is
asked. It has no effect if used in conjunction with --key-file.
This option is useful when the system should not stall if the user does not
input a passphrase, e.g. during boot. The default is a value of 0 seconds,
which means to wait forever.
Use a detached (separated) metadata device or
file where the LUKS header is stored. This option allows one to store
ciphertext and LUKS header on different devices.
For commands that change the LUKS header (e.g. luksAddKey), specify the
device or file with the LUKS header directly as the LUKS device.
Specify which TrueCrypt on-disk header will be
used to open the device. See TCRYPT section in cryptsetup(8) for
more info.
This option is ignored as VeraCrypt compatible
mode is supported by default.
This option can be used to disable VeraCrypt
compatible mode (only TrueCrypt devices are recognized). Only for TCRYPT
extension. See TCRYPT section in cryptsetup(8) for more
info.
Use a custom Personal Iteration Multiplier
(PIM) for VeraCrypt device. See TCRYPT section in cryptsetup(8)
for more info.
Suppresses all confirmation questions. Use
with care!
If the --verify-passphrase option is not specified, this option also switches
off the passphrase verification.
Run in debug mode with full diagnostic logs.
Debug output lines are always prefixed by #.
If --debug-json is used, additional LUKS2 JSON data structures are
printed.
Show the program version.
Show short option help.
Show help text and default parameters.
REPORTING BUGS
Report bugs at cryptsetup <[email protected]>mailing or in Issues project section <https://gitlab.com/cryptsetup/cryptsetup/-/issues/new>.SEE ALSO
Cryptsetup FAQ <https://gitlab.com/cryptsetup/cryptsetup/wikis/FrequentlyAskedQuestions>CRYPTSETUP
Part of cryptsetup project <https://gitlab.com/cryptsetup/cryptsetup/>.2023-12-18 | cryptsetup 2.6.1 |