Remove the 512 bit key option for aes-xts-plain64 encrypted volumes

[Keith Berger]

The Key size listed for Encrpyted volumes using aes-xts-plain64 is not correct. If you use 512, you will get an error about an unsupported key size. This has to do with how barbican receives the key information from cinder.

https://github.com/openstack/cinder/blob/master/cinder/volume/volume_utils.py#L919

does not pass a "mode" so this block

https://github.com/openstack/barbican/blob/stable/rocky/barbican/plugin/crypto/simple_crypto.py#L222

evaluates to 512 and this is not present in this list

https://github.com/openstack/barbican/blob/stable/rocky/barbican/plugin/crypto/base.py#L64

The following docs needs updated to only reflect a 256 bit key.

https://docs.openstack.org/horizon/train/admin/manage-volumes.html
https://docs.openstack.org/horizon/stein/admin/manage-volumes.html
https://docs.openstack.org/horizon/rocky/admin/manage-volumes.html
https://docs.openstack.org/horizon/queens/admin/manage-volumes.html

Also the text needs to be updated.

Key Size (bits)

512 (Recommended for aes-xts-plain64. 256 should be used for aes-cbc-essiv)
                Using this selection for aes-xts, the underlying key size would only be 256-bits*

256 Using this selection for aes-xts, the underlying key size would only be 128-bits*

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/689871
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=85a1dddf126691921924edcecaee5c054c7df6c2
Submitter: Zuul
Branch: master

commit 85a1dddf126691921924edcecaee5c054c7df6c2
Author: Keith Berger <email address hidden>
Date: Mon Oct 21 16:20:51 2019 -0400

    Fix aes-xts key length in Horizon Admin Guide / Manage Volumes

    When using aes-xts-plain64, a 512 bit key produces an error as this
    is not a supported barbican key length for aes-xts-plain64. This patch
    updates the horzion admin doc to remove the reference of a 512 bit key.

    Change-Id: Ie36e05a1e59eb88b779c9f3249a714c20b5f5fe0
    Closes-Bug: #1708505
    Closes-Bug: #1849196

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/train
Review: https://review.opendev.org/690088

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/stein
Review: https://review.opendev.org/690089

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/rocky
Review: https://review.opendev.org/690090

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/690088
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=524093e3e30cc8f64aecebedb51704584401087d
Submitter: Zuul
Branch: stable/train

commit 524093e3e30cc8f64aecebedb51704584401087d
Author: Keith Berger <email address hidden>
Date: Mon Oct 21 16:20:51 2019 -0400

    Fix aes-xts key length in Horizon Admin Guide / Manage Volumes

    When using aes-xts-plain64, a 512 bit key produces an error as this
    is not a supported barbican key length for aes-xts-plain64. This patch
    updates the horzion admin doc to remove the reference of a 512 bit key.

    Change-Id: Ie36e05a1e59eb88b779c9f3249a714c20b5f5fe0
    Closes-Bug: #1708505
    Closes-Bug: #1849196
    (cherry picked from commit 85a1dddf126691921924edcecaee5c054c7df6c2)

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/690089
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=123a9e73a29cd820c64b9214f6173c849228543e
Submitter: Zuul
Branch: stable/stein

commit 123a9e73a29cd820c64b9214f6173c849228543e
Author: Keith Berger <email address hidden>
Date: Mon Oct 21 16:20:51 2019 -0400

    Fix aes-xts key length in Horizon Admin Guide / Manage Volumes

    When using aes-xts-plain64, a 512 bit key produces an error as this
    is not a supported barbican key length for aes-xts-plain64. This patch
    updates the horzion admin doc to remove the reference of a 512 bit key.

    Change-Id: Ie36e05a1e59eb88b779c9f3249a714c20b5f5fe0
    Closes-Bug: #1708505
    Closes-Bug: #1849196
    (cherry picked from commit 85a1dddf126691921924edcecaee5c054c7df6c2)

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/690090
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=8af8bc48a58fc9a2e45a89a24069f7cae0af8235
Submitter: Zuul
Branch: stable/rocky

commit 8af8bc48a58fc9a2e45a89a24069f7cae0af8235
Author: Keith Berger <email address hidden>
Date: Mon Oct 21 16:20:51 2019 -0400

    Fix aes-xts key length in Horizon Admin Guide / Manage Volumes

    When using aes-xts-plain64, a 512 bit key produces an error as this
    is not a supported barbican key length for aes-xts-plain64. This patch
    updates the horzion admin doc to remove the reference of a 512 bit key.

    Change-Id: Ie36e05a1e59eb88b779c9f3249a714c20b5f5fe0
    Closes-Bug: #1708505
    Closes-Bug: #1849196
    (cherry picked from commit 85a1dddf126691921924edcecaee5c054c7df6c2)

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/horizon 17.0.0 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/horizon 15.2.0 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/horizon 14.1.0 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/horizon 16.1.0 release.