clevis-luks-regen - Man Page

Regenerates a clevis binding


clevis luks regen [-q] -d DEV -s SLT


The clevis luks regen command regenerates the clevis binding for a given slot in a LUKS device, using the same configuration of the existing binding. Its operation can be compared to performing clevis luks unbind and clevis luks bind for rebinding said slot and device. This is useful when rotating tang keys.



Let's start by using clevis luks list to see the current binding configuration in /dev/sda1:
# clevis luks list -d /dev/sda1
1: tang '{"url":"http://tang.server"}'
2: tpm2 '{"hash":"sha256","key":"ecc"}'
We see that slot 1 in /dev/sda1 has a tang binding with the following configuration:
Now let's do the rebinding of slot 1:
# clevis luks regen -d /dev/sda1 -s 1
After a successful operation, we will have the new binding using the same configuration that was already in place.

See Also

clevis-luks-list(1) clevis-luks-bind(1) clevis-luks-unbind(1)

Referenced By