RFR: 8331008: Implement JEP 478: Key Derivation Function API (Preview) [v58]

[Valerie Peng]

On Tue, 15 Oct 2024 18:37:38 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:
> 
>   running the Exhaustive test through a more ruthless formatter

test/jdk/com/sun/crypto/provider/KDF/HKDFExhaustiveTest.java line 298:

> 296:     Utils.runAndCheckException(
> 297:         () -> KDF.getInstance(KDF_ALGORITHMS[0], (KDFParameters) new KDFAlgorithmParameterSpec()),
> 298:         ClassCastException.class);

The ClassCastException is the result of line 297? I don't see the reason for testing this, seems nothing to do with the KDF impls?

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PR Review Comment: https://git.openjdk.org/jdk/pull/20301#discussion_r1802105529