Add UBTU-20-010045 for enforcing proper kex exchange algorithms

[dexterle]

Description:

• Fix UBTU-20-010045
• Add test for ensuring proper kex exchange algorithms

Rationale:

• Part of Ubuntu 20.04 DISA STIG v1r9 profile upgrade
• Ubuntu2004 stig profile v1r9 update #10738

Review Hints:

Build the product:

./build_product ubuntu2004

Run a test with the build:

cd build/test
ctest -R quick

[openshift-ci]

Hi @dexterle. Thanks for your PR.

I'm waiting for a ComplianceAsCode member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[github-actions]

Start a new ephemeral environment with changes proposed in this pull request:

rhel8 (from CTF) Environment (using Fedora as testing environment)

Fedora Testing Environment

Oracle Linux 8 Environment

[codeclimate]

Code Climate has analyzed commit 7dd492c and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 53.8% (0.0% change).

View more on Code Climate.

[dodys]

I'm closing this PR in favor of PR #11053 where I've included your commit.