8367008: Algorithm identifiers for HmacSHA* should always have NULL as params

[rm-gh-8]

Backporting JDK-8367008: Algorithm identifiers for HmacSHA* should always have NULL as params.

This is PR updates AlgorithmId to treat ASN.1 NULL parameters as no parameters, and updates the list of algorithms that must encode NULL.

For parity with Oracle JDK.

Ran related tests on linux-x64, linux-aarch64, macos-aarch64 and windows-x64:

make test TEST=test/jdk/sun/security/x509

Results:

windows-x64-specific-test.log
macos-aarch64-specific-test.log
linux-x64-specific-test.log
linux-aarch64-specific-test.log

---

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---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8367008 needs maintainer approval

Issue

• JDK-8367008: Algorithm identifiers for HmacSHA* should always have NULL as params (Enhancement - P4 - Requested)

Reviewing

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$ git fetch https://git.openjdk.org/jdk25u-dev.git pull/719/head:pull/719
$ git checkout pull/719

Update a local copy of the PR:
$ git checkout pull/719
$ git pull https://git.openjdk.org/jdk25u-dev.git pull/719/head

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Checkout this PR locally:
$ git pr checkout 719

View PR using the GUI difftool:
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Download this PR as a diff file:
https://git.openjdk.org/jdk25u-dev/pull/719.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back rmesde! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

❗ This change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[openjdk]

This backport pull request has now been updated with issue from the original commit.

[openjdk]

⚠️ @rm-gh-8 This change is now ready for you to apply for maintainer approval. This can be done directly in each associated issue or by using the /approval command.

[mlbridge]

Webrevs

• 00: Full (8e675530)

[rm-gh-8]

/approval request for backport of JDK-8367008: Algorithm identifiers for HmacSHA* should always have NULL as params.

This is PR updates AlgorithmId to treat ASN.1 NULL parameters as no parameters, and updates the list of algorithms that must encode NULL.

For parity with Oracle JDK.

Low to moderate risk - HMAC algorithm identifiers now encode an explicit NULL (https://www.rfc-editor.org/rfc/rfc9879.html#appendix-B), which could affect interoperability with existing external integrations.

[openjdk]

@rm-gh-8
8367008: The approval request has been created successfully.