RFR: 8342183: Update tests to use stronger algorithms and keys [v2]

[Anthony Scarpino]

On Tue, 29 Oct 2024 15:56:50 GMT, Fernando Guallini <fguallini at openjdk.org> wrote:

>> Several tests are identified to use weak/legacy algorithms. As these tests purpose is not to exercise weak algorithms, these are updated in this PR to use stronger algorithms. If the test uses a weak key, it is updated as well.
>
> Fernando Guallini has updated the pull request incrementally with one additional commit since the last revision:
> 
>   add more algos to TestExplicitKeyLength.java

test/jdk/java/security/Signature/ByteBuffers.java line 53:

> 51:         KeyPair kp = kpg.generateKeyPair();
> 52: 
> 53:         Signature sig = Signature.getInstance("SHA224withDSA", p);

Why is SHA224 used instead of SHA256 here and on other tests in this PR?

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PR Review Comment: https://git.openjdk.org/jdk/pull/21578#discussion_r1823595478