8338587: Internal XOF Methods for SHAKE128 and SHAKE256

[GoeLin]

Backport of the change in 21.

Resolved two copyrights.

Will make this depend on the push to 21 once available. Will probably be clean.

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Progress

• Change must not contain extraneous whitespace
• JDK-8338587 needs maintainer approval
• Commit message must refer to an issue

Integration blocker

 ⚠️ Dependency #4531 must be integrated first

Issue

• JDK-8338587: Internal XOF Methods for SHAKE128 and SHAKE256 (Enhancement - P3 - Requested)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk17u-dev.git pull/4532/head:pull/4532
$ git checkout pull/4532

Update a local copy of the PR:
$ git checkout pull/4532
$ git pull https://git.openjdk.org/jdk17u-dev.git pull/4532/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 4532

View PR using the GUI difftool:
$ git pr show -t 4532

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk17u-dev/pull/4532.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back goetz! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

❗ This change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[mlbridge]

Webrevs

• 01: Full - Incremental (c095b85a)
• 00: Full (c095b85a)

[GoeLin]

The change was pushed to 21, I updated the title. Hopfully recognized as clean now :)

[openjdk]

This backport pull request has now been updated with issue from the original commit.