RFR: 8331008: Implement JEP 478: Key Derivation Function API (Preview) [v16]

[Valerie Peng]

On Wed, 28 Aug 2024 20:44:10 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 two additional commits since the last revision:
> 
>  - consistency with wording for addIKM and addSalt
>  - another round of code review comments

test/jdk/javax/crypto/KDF/KDFDelayedProviderSyncTest.java line 66:

> 64:     public void testDerive()
> 65:         throws InvalidAlgorithmParameterException, NoSuchAlgorithmException {
> 66:         SecretKey result = kdfUnderTest.deriveKey("AES", kdfParameterSpec);

Here the key algorithm is "AES" with output length 42 bytes. However, AES only has 128, 192, and 256-bits key sizes though. Based on the javadoc, this combination is not valid and should throw IAPE? Maybe use some other algorithm as the key algorithm?

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PR Review Comment: https://git.openjdk.org/jdk/pull/20301#discussion_r1735402441