# CRYPTSETUP-TOKEN - manage LUKS2 tokens - man(8) - [phpMan]

[_CRYPTSETUP-TOKEN_(8)](https://www.chedong.com/phpMan.php/man/CRYPTSETUP-TOKEN/8/markdown)                     Maintenance Commands                     [_CRYPTSETUP-TOKEN_(8)](https://www.chedong.com/phpMan.php/man/CRYPTSETUP-TOKEN/8/markdown)

## NAME
       cryptsetup-token - manage LUKS2 tokens

## SYNOPSIS
       **cryptsetup _**token_ **<add|remove|import|export|unassign> [<options>] <device>**

## DESCRIPTION
       Action _add_ creates a new keyring token to enable auto-activation of the device. For the
       auto-activation, the passphrase must be stored in keyring with the specified description.
       Usually, the passphrase should be stored in _user_ or _user-session_ keyring. The _token_ command
       is supported only for LUKS2.

       For adding new keyring token, option --key-description is mandatory. Also, new token is
       assigned to key slot specified with --key-slot option or to all active key slots in the case
       --key-slot option is omitted.

       To remove existing token, specify the token ID which should be removed with --token-id
       option.

       **WARNING: **The action _token_ _remove_ removes any token type, not just _keyring_ type from token
       slot specified by --token-id option.

       Action _import_ can store arbitrary valid token json in LUKS2 header. It may be passed via
       standard input or via file passed in --json-file option. If you specify --key-slot then
       successfully imported token is also assigned to the key slot.

       Action _export_ writes requested token JSON to a file passed with --json-file or to standard
       output.

       Action _unassign_ removes token binding to specified keyslot. Both token and keyslot must be
       specified by --token-id and --key-slot parameters.

       If --token-id is used with action _add_ or action _import_ and a token with that ID already
       exists, option --token-replace can be used to replace the existing token.

       **<options> **can be [--header, --token-id, --key-slot, --key-description,
       --disable-external-tokens, --disable-locks, --disable-keyring, --json-file, --token-replace,
       --unbound, --external-tokens-path].

## OPTIONS
### --json-file
           Read token JSON from a file or write token to it. --json-file=- reads JSON from standard
           input or writes it to standard output respectively.

### --token-replace
           Replace an existing token when adding or importing a token with the --token-id option.

### --key-slot, -S <0-N>
           For LUKS operations that add key material, this option allows you to specify which key
           slot is selected for the new key.

           The maximum number of key slots depends on the LUKS version. LUKS1 can have up to 8 key
           slots. LUKS2 can have up to 32 key slots based on key slot area size and key size, but a
           valid key slot ID can always be between 0 and 31 for LUKS2.

### --header <device or file storing the LUKS header>
           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.

### --disable-external-tokens
           Disable loading of plugins for external LUKS2 tokens.

### --disable-locks
           Disable lock protection for metadata on disk. This option is valid only for LUKS2 and
           ignored for other formats.

           **WARNING: **Do not use this option unless you run cryptsetup in a restricted environment
           where locking is impossible to perform (where /run directory cannot be used).

### --disable-keyring
           Do not load volume key in kernel keyring and store it directly in the dm-crypt target
           instead. This option is supported only for the LUKS2 type.

### --key-description <text>
           Set key description in keyring for use with _token_ command.

### --token-id
           Specify token number. If omitted, first unused token id is used when adding or importing
           new token.

### --unbound
           Creates new LUKS2 keyring token assigned to no keyslot. Usable only with _add_ action.

       **--external-tokens-path _**absolute_path_
           Override system directory path where cryptsetup searches for external token handlers (or
           token plugins). It must be absolute path (starting with '/' character).

### --batch-mode, -q
           Suppresses all confirmation questions. Use with care!

           If the --verify-passphrase option is not specified, this option also switches off the
           passphrase verification.

### --debug or --debug-json
           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.

### --version, -V
           Show the program version.

### --usage
           Show short option help.

### --help, -?
           Show help text and default parameters.

## REPORTING BUGS
       Report bugs at **cryptsetup mailing list **<<cryptsetup@lists.linux.dev>> or in **Issues project**
       **section **<<https://gitlab.com/cryptsetup/cryptsetup/-/issues/new>>.

       Please attach output of the failed command with --debug option added.

## SEE ALSO
       **Cryptsetup FAQ **<<https://gitlab.com/cryptsetup/cryptsetup/wikis/FrequentlyAskedQuestions>>

       [**cryptsetup**(8)](https://www.chedong.com/phpMan.php/man/cryptsetup/8/markdown), [**integritysetup**(8)](https://www.chedong.com/phpMan.php/man/integritysetup/8/markdown) and [**veritysetup**(8)](https://www.chedong.com/phpMan.php/man/veritysetup/8/markdown)

## CRYPTSETUP
       Part of **cryptsetup project **<<https://gitlab.com/cryptsetup/cryptsetup/>>.

cryptsetup 2.7.0                             2024-11-14                          [_CRYPTSETUP-TOKEN_(8)](https://www.chedong.com/phpMan.php/man/CRYPTSETUP-TOKEN/8/markdown)