In VIP ADFS integration, user authentication encounters the following certificate errors in the log file Log_VIPAuthProvider.txt
:
Cert Public key
Exception while signing the username : System.ArgumentOutOfRangeException: Length cannot be less than zero.
Parameter name: length
at System.String.Substring(Int32 startIndex, Int32 length)
at SymcVIP.AuthenticationAdapterWindowsAccountName.SignUserName(String vipUser)
While testing authentication using the VIP Integration Settings tool, the error message is returned as "User authentication failed with VIP service exception System.Net.WebException. The request failed with HTTP status 400: Bad Request".
VIP Service
Microsoft Active Directory Federation Services (AD FS)
From product, below is the recommendation to resolve the issue: