d95c80d36f
Fixed merge conflict (RS) Signed-off-by: Rafael Jardim <rafaeljordao.jardim@windriver.com> Change-Id: I30b882a14196525f440db1108a56bbf862dfaf55 Signed-off-by: Ron Stone <ronald.stone@windriver.com>
174 lines
7.1 KiB
ReStructuredText
174 lines
7.1 KiB
ReStructuredText
|
||
.. lzf1570032232833
|
||
.. _secure-starlingx-rest-and-web-certificates-private-key-storage-with-tpm:
|
||
|
||
========================================================================
|
||
Secure StarlingX REST and Web Certificate's Private Key Storage with TPM
|
||
========================================================================
|
||
|
||
For increased security, the StarlingX REST and Web Server's certificate can
|
||
be installed such that the private key is stored in a |TPM| 2.0 device on
|
||
the controller.
|
||
|
||
.. rubric:: |context|
|
||
|
||
|TPM| is an industry standard cryptographic processor that enables secure
|
||
storage of secrets. |prod| can use a TPM device, if present, to securely
|
||
store the private key of the StarlingX REST and Web Server's certificate.
|
||
|
||
The |TPM| is used to wrap the private key within the |TPM| device. Each
|
||
wrapping is unique to that |TPM| device and cannot be synchronized between
|
||
controllers using different |TPM| devices. Therefore, the same private key
|
||
is always secured to both the active and standby controllers' |TPM| devices
|
||
at the same time. Given this operational constraint, |prod| has measures in
|
||
place to detect when the standby controller is reinstalled or replaced, and
|
||
raise appropriate alarms to prevent an Unlock or Swact of a new standby
|
||
controller until the StarlingX REST and Web Server's certificate is
|
||
re-installed, in order to update the new standby controller's |TPM| device.
|
||
|
||
.. rubric:: |prereq|
|
||
|
||
|
||
.. _secure-starlingx-rest-and-web-certificates-private-key-storage-with-tpm-ul-xj3-mqc-d1b:
|
||
|
||
- Obtain an intermediate or Root |CA|-signed certificate and key from a
|
||
trusted intermediate or Root |CA|. Refer to the documentation for the
|
||
external intermediate or Root |CA| that you are using, on how to create
|
||
public certificate and private key pairs, signed by an intermediate or
|
||
Root-signed |CA|, for HTTPS.
|
||
|
||
.. xbooklink
|
||
|
||
For lab purposes, see :ref:`Locally Creating Certificates
|
||
<creating-certificates-locally-using-openssl>` for details on how to create
|
||
a test intermediate or Root |CA| certificate and key, and use it to sign
|
||
test certificates.
|
||
|
||
Put the |PEM| encoded versions of the certificate and key in a
|
||
single file, and copy the file to the controller host.
|
||
|
||
- Both controllers must be provisioned and unlocked before you can install
|
||
the certificate using |TPM| to store the private key.
|
||
|
||
- A |TPM| 2.0 device must be available on both controller nodes.
|
||
|
||
- |TPM| must be enabled in the |UEFI| on both controllers.
|
||
|
||
- HTTPS must be enabled on the system.
|
||
|
||
|
||
.. caution::
|
||
Do not install the certificate using |TPM| on controller-0 before the
|
||
standby controller-1 has been provisioned and unlocked. If this happens,
|
||
you cannot unlock controller-1. To recover, do the following:
|
||
|
||
.. _secure-starlingx-rest-and-web-certificates-private-key-storage-with-tpm-ol-jpm-2kq-qcb:
|
||
|
||
#. Install the certificate without |TPM| on controller-0. For more
|
||
information, see :ref:`Install/Update the StarlingX Rest and Web
|
||
Server Certificate
|
||
<install-update-the-starlingx-rest-and-web-server-certificate>`.
|
||
|
||
#. Unlock controller-1.
|
||
|
||
#. Reinstall the certificate using |TPM| on controller-0.
|
||
|
||
|
||
.. rubric:: |proc|
|
||
|
||
.. _secure-starlingx-rest-and-web-certificates-private-key-storage-with-tpm-steps-hnx-qf5-x1b:
|
||
|
||
#. Install the StarlingX REST and Web Server's certificate using |TPM| to
|
||
securely store the private key:
|
||
|
||
.. code-block:: none
|
||
|
||
$ system certificate-install –m tpm_mode <pathTocertificateAndKey>
|
||
|
||
where:
|
||
|
||
**<pathTocertificateAndKey>**
|
||
|
||
is the path to the file containing both the intermediate or Root
|
||
|CA|-signed certificate and private key to install.
|
||
|
||
.. warning::
|
||
For security purposes, the utility deletes the provided SSL private
|
||
key from the file system and asks for confirmation during the
|
||
installation. You should store a copy of the SSL private key off-site.
|
||
|
||
.. note::
|
||
Only X.509 based RSA key certificates are supported \(PKCS12 format
|
||
and ECDSA keys are not supported\). Additionally, 4096 bit RSA key
|
||
lengths are not supported.
|
||
|
||
#. Check the certificate's |TPM| configuration state for each provisioned
|
||
controller node.
|
||
|
||
.. code-block:: none
|
||
|
||
[sysadmin@controller-0 tmp(keystone_admin)]$ system certificate-show tpm
|
||
+-------------+-----------------------------------------------------+
|
||
| Property | Value |
|
||
+-------------+-----------------------------------------------------+
|
||
| uuid | ed3d6a22-996d-421b-b4a5-64ab42ebe8be |
|
||
| certtype | tpm_mode |
|
||
| signature | tpm_mode_13214262027721489760 |
|
||
| start_date | 2018-03-21T14:53:03+00:00 |
|
||
| expiry_date | 2019-03-21T14:53:03+00:00 |
|
||
| details | {u'state': {u'controller-1': u'tpm-config-applied', |
|
||
| | u'controller-0': u'tpm-config-applied'}} |
|
||
+-------------+-----------------------------------------------------+
|
||
|
||
|
||
Subsequent certificate installs using |TPM| populate the updated\_at field
|
||
to indicate when the certificate was refreshed.
|
||
|
||
.. code-block:: none
|
||
|
||
[sysadmin@controller-0 tmp(keystone_admin)]$ system certificate-show tpm
|
||
+-------------+-----------------------------------------------------+
|
||
| Property | Value |
|
||
+-------------+-----------------------------------------------------+
|
||
| uuid | d6a47714-2b99-4470-b2c8-422857749c98 |
|
||
| certtype | tpm_mode |
|
||
| signature | tpm_mode_13214262027721489760 |
|
||
| start_date | 2018-03-21T14:53:03+00:00 |
|
||
| expiry_date | 2019-03-21T14:53:03+00:00 |
|
||
| details | {u'state': {u'controller-1': u'tpm-config-applied', |
|
||
| | u'controller-0': u'tpm-config-applied'}, |
|
||
| | u'updated_at':u'2018-03-21T16:18:15.879639+00:00'} |
|
||
+-------------+-----------------------------------------------------+
|
||
|
||
|
||
If either controller has state **tpm-config-failed**, then a 500.100
|
||
alarm is raised for the host.
|
||
|
||
- A LOCKED controller node that is not in the |TPM| applied configuration
|
||
state \(**tpm-config-applied**\), is prevented from being UNLOCKED
|
||
|
||
- An UNLOCKED controller node that is not in the |TPM| applied
|
||
configuration state \(**tpm-config-applied**\), is prevented from being
|
||
Swacted To or upgraded.
|
||
|
||
|
||
|
||
.. rubric:: |postreq|
|
||
|
||
When reinstalling either of the controllers or during a hardware replacement
|
||
scenario, you must reinstall the certificate:
|
||
|
||
.. code-block:: none
|
||
|
||
~(keystone_admin)]$ system certificate-install -m tpm_mode
|
||
<pathTocertificateAndKey>
|
||
|
||
To disable the use of |TPM| to store the private key of the StarlingX REST
|
||
and Web Server's certificate, install the certificate without the |TPM|
|
||
option:
|
||
|
||
.. code-block:: none
|
||
|
||
~(keystone_admin)]$ system certificate-install <pathTocertificateAndKey>
|
||
|