RFR: 8353578: Refactor existing usage of internal HKDF impl to use the KDF API [v4]

[Bradford Wetmore]

On Thu, 8 May 2025 18:04:58 GMT, Valerie Peng <valeriep at openjdk.org> wrote:

>> Or in the meantime:
>> 
>>     } finally {
>>         // Best effort
>>         if (eae_prk instanceof SecretKeySpec s) {
>>             SharedSecrets.getJavaxCryptoSpecAccess()
>>                     .clearSecretKeySpec(s);
>>         } else {
>>             try {
>>                 eae_prk.destroy();
>>             } catch (DestroyFailedException e) {
>>                 // swallow
>>             }
>>         }
>>     }
>
> Sounds good, thanks for the suggestion.

This is what I did in my Exporter code.  Assuming you go in first, I'll update mine to use your Util method.

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PR Review Comment: https://git.openjdk.org/jdk/pull/24393#discussion_r2082763358