Deployment to production seems successful. I have uploaded a modified
kernel to a PPA and built a signed kernel image from that. I am
attaching that signed kernel and the public key component of the signing
key for it. NOTE: this key is _not_ a final official canonical key it
is a key for a PPA and for testing only.
There are two files:
vmlinux-4.11.0-13-generic.opal.signed -- this is the bootable signed binary
opal.x509 -- the DER format public key with which this binary is signed
Any testing, review appreciated. Please report back to this bug.
** Also affects: linux-signed (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux-signed (Ubuntu)
Status: New => In Progress
** Changed in: linux-signed (Ubuntu)
Importance: Undecided => Critical
** Changed in: linux-signed (Ubuntu)
Importance: Critical => High
** Changed in: linux-signed (Ubuntu)
Assignee: (unassigned) => Andy Whitcroft (apw)
** Attachment added: "opal.x509"
https://bugs.launchpad.net/ubuntu/+source/linux-signed/+bug/1696154/+attachment/4932055/+files/opal.x509
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https://bugs.launchpad.net/bugs/1696154
Title:
[17.10 FEAT] Sign POWER host/NV kernels
Status in Launchpad itself:
Fix Committed
Status in The Ubuntu-power-systems project:
In Progress
Status in linux package in Ubuntu:
In Progress
Status in linux-signed package in Ubuntu:
In Progress
Bug description:
Feature Description:
Sign POWER host and NV kernels with sign-file in anticipation of POWER
secure boot. Provide the associated certificate. Ideally it would
be possible to reuse the UEFI shim private key and certificate used to
sign and verify x86_64 kernels. More details to follow. Guest
kernels will be addressed in a future separate feature request.
Business Case:
As a system administrator I want to verify the integrity of my kernels
so that I can prevent malicious kernels from being executed.
Use Case:
Signed POWER kernels will be validated by OPAL as OpenPOWER systems
boot when keys are properly installed and the system is booted in
secure mode.
Test Case:
Sign and install a POWER kernel on an OpenPOWER machine with a
firmware level that supports secure boot. Install a PK, distro KEK
certificat, and distro DB certificate. Boot the system and verify
that it will boot the kernel. Negative tests: Separately remove the
signature, install an usigned kernel, and modify the kernel image and
test that the kernel will not boot.
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