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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...Getting exception from non-FIPS-compliant cryptography providerGetting exception from non-FIPS-compliant cryptography provider
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6/16/2017 11:30 PM
 
kevin_bkt


Joined: 6/9/2010
Posts: 7
We have an application that runs as a DNN module.  We currently deploy it on DNN 8.0.4.  We're trying to get it running on an Army Gold Master website which requires FIPS-compliant cryptography algorithms be used.  The DNN site comes up, but when we attempt to log in the following exception is thrown:

This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms.

 

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidOperationException: This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms.


This is the stack trace:

[InvalidOperationException: This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms.]
   System.Security.Cryptography.MD5CryptoServiceProvider..ctor() +4550284
   DotNetNuke.Services.Exceptions.ExceptionExtensions.Hash(Exception exc) +330
   DotNetNuke.Services.Exceptions.ExceptionInfo..ctor(Exception e) +114
   DotNetNuke.Services.Exceptions.Exceptions.GetExceptionInfo(Exception e) +45
   DotNetNuke.Services.Log.EventLog.ExceptionLogController.AddLog(BasePortalException objBasePortalException) +35
   DotNetNuke.Services.Exceptions.Exceptions.ProcessPageLoadException(Exception exc, String URL) +169
   DotNetNuke.Framework.PageBase. (EventArgs e) +743
   System.Web.UI.Page.HandleError(Exception e) +84
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6560
   System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +245
   System.Web.UI.Page.ProcessRequest() +72
   System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +22
   System.Web.UI.Page.ProcessRequest(HttpContext context) +58
   ASP.default_aspx.ProcessRequest(HttpContext context) +4
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +188
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +69

It appears that an error occurs, and while trying to log the exception DNN uses the MD5CryptoServiceProvider to generate a hash.  This algorithm is not supported by FIPS, so an InvalidOperationException is thrown.

Any assistance in figuring out how to make our DNN install FIPS-compliant would be appreciated!

Kevin
 
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6/20/2017 7:03 PM
 
kevin_bkt


Joined: 6/9/2010
Posts: 7
We have downloaded the source for DNN 8.0.2. Apparently it is NOT FIPS compliant, as it has several references to non-FIPS cryptography algorithms in it. This will likely lead to us having to create a custom version of DNN 8 for use by our government customers.

Very disappointing.
 
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