RFR: 8331008: Implement JEP 478: Key Derivation Function API (Preview) [v45]

[Kevin Driver]

On Fri, 20 Sep 2024 20:08:05 GMT, Kevin Driver <kdriver at openjdk.org> wrote:

>> Introduce an API for Key Derivation Functions (KDFs), which are cryptographic algorithms for deriving additional keys from a secret key and other data. See [JEP 478](https://openjdk.org/jeps/478).
>> 
>> Work was begun in [another PR](https://github.com/openjdk/jdk/pull/18924).
>
> Kevin Driver has updated the pull request incrementally with one additional commit since the last revision:
> 
>   spec wording changes and a few tweaks to DPS

This commit message should reflect that the changes to DPS are specification-related only. Pointing this out to avoid amending the commit message.

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PR Review: https://git.openjdk.org/jdk/pull/20301#pullrequestreview-2319239272