Problem
You are unable to log on to or access the Intergraph Authorization Server as the authentication server may not have access to the SSL certificates. For example:
Access denied: Server Error in'/spfwebclient/spfauthentication' Application
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.security.Crytography.CrytographicException: Access denied
Solution
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In Windows Explorer, right-click the MachineKeys folder located in C:\ProgramData\Microsoft\Crypto\RSA.
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Give the SPFUsers group Read & Execute and Modify permissions.