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Fix BuildChainForCertificateSignedWithDisallowedKey. #118777

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Merged
merged 2 commits into from
Aug 15, 2025
Merged

Fix BuildChainForCertificateSignedWithDisallowedKey. #118777

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3d56565
Fix BuildChainForCertificateSignedWithDisallowedKey.
vcsjones Aug 15, 2025
db6ff18
Stop running BuildChainForCertificateSignedWithDisallowedKey on Linux…
vcsjones Aug 15, 2025
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9 changes: 7 additions & 2 deletions src/libraries/System.Security.Cryptography/tests/X509Certificates/ChainTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -1177,14 +1177,19 @@ public static void BuildChainForCertificateSignedWithDisallowedKey()
chain.ChainPolicy.ExtraStore.Add(intermediateCert);
Assert.False(chain.Build(cert));

if (PlatformDetection.IsAndroid || PlatformDetection.IsApplePlatform26OrLater || PlatformDetection.IsLinux)
if (PlatformDetection.IsAndroid || PlatformDetection.IsApplePlatform26OrLater)
{
// Android always validates trust as part of building a path,
// so violations comes back as PartialChain with no elements
// Apple 26 no longer block these SKIs since the roots are no longer trusted at all and are expired.
// Linux has no concept of a blocked key list, they just remove certificates from a trust store.
Assert.Equal(X509ChainStatusFlags.PartialChain, chain.AllStatusFlags());
}
else if (PlatformDetection.IsLinux)
{
// Linux has no concept of a blocked key list, they just remove certificates from a trust store.
X509ChainStatusFlags actualFlags = chain.AllStatusFlags();
AssertExtensions.TrueExpression(actualFlags.HasFlag(X509ChainStatusFlags.PartialChain));
}
else
{
X509ChainElement certElement = chain.ChainElements
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