8000 X509VerificationFlags.AllowUnknownCertificateAuthority behavior · Issue #26449 · dotnet/runtime · GitHub
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X509VerificationFlags.AllowUnknownCertificateAuthority behavior #26449
@davidorbelian

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@davidorbelian

Hi there.

I am not sure is this a bug or that behavior is expected. I was searching for some ways to validate a custom CA issued certificate and found this.

Setting ChainPolicy.VerificationFlags = X509VerificationFlags.AllowUnknownCertificateAuthority;

will allow the build method to return true even if you don't add certificates to the ExtraStore which completely defeats the purpose of checking.

I want to make sure this is an expected behavior and if so, ask how should I validate server certs against ca certs added to extra store?
Thank you.

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