Mbed-TLS
cert_write - add a way to set extended key usages - rebase
Rebased/updated version of #277.
Requires backports: no.
Confirm nwilson has signed the CLA, so no need for sign-off by him.
Why is there still a pending CI build when the last change was 7 days ago?
@tom-cosgrove-arm GitHub shows the CI status as pending if it has received a notification that the CI job started, but not a notification that the CI job passed/failed. This can happen if there was a network glitch when the CI server tried to report back.
There's also a limit on the number of times a CI can report the status of a given commit, so PRs that have had a lot of pr-merge runs sometimes stop updating. I can't find the limit but it's high enough that we rarely if ever encounter it on “normal” PRs, so I don't think that's happened here. We encounter that on very old PRs that have had no update in a while but have had re-trigger events, especially the PRs we put up to test CI script updates.
I rebased onto origin/development and saw no conflicts, so not sure why GitHub reported conflicts. Anyway, I've updated this PR.
Still reporting a conflict in tests/suites/test_suite_x509write.data, which hasn't been updated since 9 Aug 2022!
The last commit (DER format support) isn't strictly related, but I found this useful when looking at an unrelated issue, so I've bundled it in here. It improves consistency with e.g. programs/pkey/gen_key.