.Dd October 15, 2021
.ds doc-volume-operating-system
.Dt ZFS-TPM2-LOAD-KEY 8
.Os tzpfms 0.1-5
.
.Sh NAME
.Nm zfs-tpm2-load-key
.Nd load tzpfms TPM2-encrypted ZFS dataset key
.Sh SYNOPSIS
.Nm
.Op Fl n
.Ar dataset
.
.Sh DESCRIPTION
After verifying
.Ar dataset
was encrypted with
.Nm tzpfms
backend
.Sy TPM2 ,
unseals the key and loads it into
.Ar dataset .
.Pp
See
.Xr zfs-tpm2-change-key 8
for a detailed description.
.
.Sh OPTIONS
.Bl -tag -compact -width "-n"
.It Fl n
Do a no-op/dry run, can be used even if the key is already loaded.
Equivalent to
.Nm zfs Cm load-key Ns 's
.Fl n
option.
.El
.
.Sh TPM1.X back-end configuration
.Ss TPM selection
The
.Nm tzpfms
suite connects to a local
.Xr tcsd 8
process
.Pq at Pa localhost:30003
by default.
Use the environment variable
.Ev TZPFMS_TPM1X
to specify a remote TCS hostname.
.Pp
The TrouSerS
.Xr tcsd 8
daemon will try
.Pa /dev/tpm0 ,
then
.Pa /udev/tpm0 ,
then
.Pa /dev/tpm ;
by occupying one of the earlier ones with, for example, shell redirection, a later one can be selected.
.
.Ss See also
The TrouSerS project page at
.Lk https:/\&/sourceforge.net/projects/trousers .
.Pp
The TPM 1.2 main specification index at
.Lk https:/\&/trustedcomputinggroup.org/resource/tpm-main-specification .
.
.Sh SPECIAL THANKS
To all who support further development, in particular:
.Bl -bullet -offset 4n -compact -width 0
.It
ThePhD
.It
Embark Studios
.El
.
.Sh REPORTING BUGS
.Lk https:/\&/todo.sr.ht/~nabijaczleweli/tzpfms
.Pp
.Mt ~nabijaczleweli/tzpfms@lists.sr.ht ,
archived at
.Lk https:/\&/lists.sr.ht/~nabijaczleweli/tzpfms .
.
.Sh SEE ALSO
.Lk https:/\&/git.sr.ht/~nabijaczleweli/tzpfms