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Description of problem:
Trying to bind using a key file fails

Version-Release number of selected component (if applicable):
Tested with clevis-luks-11-9.el8.x86_64

How reproducible: always


Steps to Reproduce:
1. Create a keyfile: openssl rand -hex 8 > keyfile
2. Add the keyfile to the LUKS device: cryptsetup luksAddKey /dev/sda1 keyfile
3. Bind: clevis luks bind -f -k key -d /dev/sda1 tpm2 {}

Actual results:
No key available with this passphrase.
Failed to import token from file.
Error while saving Clevis metadata as a LUKS token!
No key available with this passphrase.

Expected results:
Bind completes successfully and we can use clevis luks unlock in the device

Additional info:
Reported upstream in https://github.com/latchset/clevis/issues/105

AC: Upstream test suite covering binding by keyfile with trailing newline will pass [1].

[1] https://github.com/latchset/clevis/blob/master/src/luks/tests/bind-pass-with-newline-luks1

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (clevis bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:4701