RFR: 8331008: Implement JEP 478: Key Derivation Function API (Preview) [v22]

[Sean Mullan]

On Fri, 30 Aug 2024 23:26:12 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:
> 
>   change impl class to use byte arrays rather than SecretKey objects where possible

src/java.base/share/classes/javax/crypto/KDF.java line 350:

> 348:                     lastException = new NoSuchAlgorithmException(
> 349:                         new InvalidAlgorithmParameterException(
> 350:                             "newInstance failed to provide a KDFSpi for the "

The caller does not need to know about internal methods named `newInstance` so these should not be exposed in exception messages. How about something simpler like "No provider can be found that supports the specified parameters". Same comment on line 365.

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PR Review Comment: https://git.openjdk.org/jdk/pull/20301#discussion_r1746029364