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cryptsetup/man/cryptsetup-token.8.adoc
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= cryptsetup-token(8)
:doctype: manpage
:manmanual: Maintenance Commands
:mansource: cryptsetup {release-version}
:man-linkstyle: pass:[blue R < >]
:COMMON_OPTIONS:
:ACTION_TOKEN:
== 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].
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