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8350807: Certificates using MD5 algorithm that are disabled by default are incorrectly allowed in TLSv1.3 when re-enabled #2085

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@GoeLin GoeLin commented Aug 13, 2025

I backport this for parity with 21.0.9-oracle.

Resolved one copyright. It is already at 2025.

But test MD5NotAllowedInTLS13CertificateSignature.java is failing.
It throws ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0
at MD5NotAllowedInTLS13CertificateSignature.lambda$main$1(MD5NotAllowedInTLS13CertificateSignature.java:100)

It expects an array of length 1 containing the exception javax.net.ssl.SSLHandshakeException: (bad_certificate) PKIX path validation failed: java.security.cert.CertPathValidatorException: Algorithm constraints check failed on signature algorithm: MD5withRSA

All other testing, i.e. our nighlties and the tests touched here, pass.


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Issue

  • JDK-8350807: Certificates using MD5 algorithm that are disabled by default are incorrectly allowed in TLSv1.3 when re-enabled (Bug - P3)

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bridgekeeper bot commented Aug 13, 2025

👋 Welcome back goetz! 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.

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openjdk bot commented Aug 13, 2025

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

@openjdk openjdk bot changed the title backport abb23828f9dc5f4cdb75d5b924dd6f45925102cd 8350807: Certificates using MD5 algorithm that are disabled by default are incorrectly allowed in TLSv1.3 when re-enabled Aug 13, 2025
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openjdk bot commented Aug 13, 2025

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

@openjdk openjdk bot added backport Port of a pull request already in a different code base clean Identical backport; no merge resolution required labels Aug 13, 2025
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