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  1. Forum
  3. Discussions
  5. QuickOPC-Classic in .NET
  7. Product Lifecycle, Licensing
  9. MD5 license validation on FIPS enabled host

MD5 license validation on FIPS enabled host

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08 Feb 2021 17:12 #9411 by support
Replied by support on topic MD5 license validation on FIPS enabled host
Thank you for letting me know.
Kind regards

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08 Feb 2021 16:51 #9410 by tblong
Replied by tblong on topic MD5 license validation on FIPS enabled host
We have tested v5.59.1055.0 and confirmed this fixed the issue. Thanks to you and your team for the quick fixes here.
The following user(s) said Thank You: support

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06 Feb 2021 11:35 #9404 by support
Replied by support on topic MD5 license validation on FIPS enabled host
Hello,
we made a different decision. The issue should be fixed in the current version, 2020.3.

Please download the latest build (full installer from our Web site, or NuGet packages from www.nuget.org ). It should be 5.59.1055.0 or later. Rebuild with it, and retest.

Best regards

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05 Feb 2021 16:23 #9403 by tblong
Replied by tblong on topic MD5 license validation on FIPS enabled host
Much appreciated on the quick response. It is quite urgent and a blocker for us as we came across this when trying to onboard a new client of ours.

A prerelease will work for us and can you publish the fix via nuget? Will we need to have a new license file generated for us as well with the change in how the license file is validated?

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05 Feb 2021 16:09 #9402 by support
Replied by support on topic MD5 license validation on FIPS enabled host
Hello. That's interesting - good to know. Thank you for reporting it. No, you cannot get around it on your side yet.

We will fix that in the incoming version (2021.1). Release date is not yet set, but it will probably be March-May 2021. Let me know how urgent it is for you. If you cannot wait that long, would you be willing to work with a prerelease of version 2021.1 ? (with that we can address it in a matter of weeks, possibly just days).

Best regards

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05 Feb 2021 15:09 #9401 by tblong
MD5 license validation on FIPS enabled host was created by tblong
QuickOPC version: 5.59.492

Our application is living on a host with FIPS mode enabled. On startup, the following error is received related to the attempt by the QuickOPC lib to use the MD5 hash algorithm to validate the QuickOPC license:
System.TypeInitializationException: The type initializer for 'OpcLabs.EasyOpc.DataAccess.Implementation.LicensingEasyDAClient' threw an exception. ---> System.InvalidOperationException: This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms.
   at System.Security.Cryptography.MD5Cng..ctor()
   at OpcLabs.BaseLib.Licensing.CryptographyLicensor..ctor()
   at OpcLabs.BaseLib.Licensing.LicenseHandler.CreateLicensor()
   at OpcLabs.BaseLib.Licensing.LicenseHandler.Prepare()
   at OpcLabs.BaseLib.Licensing.LicenseHandler.Request()
   at OpcLabs.BaseLib.Licensing.LicensingRoot.ObtainLicenses(LicensedEntityInformation licensedEntityInformation)
   at OpcLabs.BaseLib.Licensing.LicensingRoot.InvokeLicense(String licenseId, LicensedEntityInformation licensedEntityInformation, ILicense& license)
   at OpcLabs.BaseLib.Licensing.Licensing.ActivateLicenses()
   at OpcLabs.EasyOpc.DataAccess.Implementation.LicensingEasyDAClient..cctor()

Any options available on my end to fix this?

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Moderators: support
  1. Forum
  3. Discussions
  5. QuickOPC-Classic in .NET
  7. Product Lifecycle, Licensing
  9. MD5 license validation on FIPS enabled host
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