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Accept all certificates at client
April 26, 2019
17:14, EEST
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JohannesLipp
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Hi guys,

we have an experimental OPC UA client for research purpose, which should accept all server certificates.
Therefore I created a Java class in the previous Prosys SDK 3.1.8 that implemented the CertificateValidationListener interface and basically returned PkiFileBasedCertificateValidator.ValidationResult.AcceptPermanently in order to accept all certificates.

However, this interface was deprecated in 3.x and now was removed in 4.0.0 Frown

Could you please guide me how to achieve such a custom certificate validator in 4.0.0? Thank you!

April 26, 2019
18:02, EEST
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Bjarne Boström
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Hi,

This was mentioned in the migration guide:

The old PkiFileBasedCertificateValidator and related classes that were deprecated in version 3.x are now
removed. DefaultCertificateValidator and PkiDirectoryCertificateStores hould be used instead.

i.e. look at the MyCertificateValidationListener in the SampleConsoleClient sample (and the SampleConsoleClient.initialize method as well). Those new APIs as mostly the same as previously, but the validation logic was split from the storing of the certs to allow easier custom stores.

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