Server Error in '/' Application.

The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters.

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.FormatException: The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters.

Source Error:


Line 63:             'Suraj S Issue 15370, 7/31/13 here we are getting the ReturnToPageURL in "URL" QueryString and we storing this URL in to the Session("ReturnToPage")  
Line 64:             If Request.QueryString("ReturnURL") IsNot Nothing Then
Line 65:                 Session("ReturnToPage") = Aptify.Framework.Web.Common.WebCryptography.Decrypt(Request.QueryString("ReturnURL"))
Line 66:             End If
Line 67:             SetProperties()

Source File: C:\inetpub\Ebiz\UserControls\Aptify_Custom\Login__c.ascx.vb    Line: 65

Stack Trace:


[FormatException: The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters. ]
   System.Convert.FromBase64_Decode(Char* startInputPtr, Int32 inputLength, Byte* startDestPtr, Int32 destLength) +14474273
   System.Convert.FromBase64CharPtr(Char* inputPtr, Int32 inputLength) +131
   System.Convert.FromBase64String(String s) +50
   Aptify.Framework.Web.Common.WebCryptography.DecryptTripleDES(String value, Byte[] key, Byte[] iv) +85
   Aptify.Framework.Web.Common.WebCryptography.Decrypt(String value, EncryptAlgorithm EncryptAlgorithm) +77
   Aptify.Framework.Web.eBusiness.WebLogin.Page_Load(Object sender, EventArgs e) in C:\inetpub\Ebiz\UserControls\Aptify_Custom\Login__c.ascx.vb:65
   System.Web.UI.Control.OnLoad(EventArgs e) +108
   System.Web.UI.Control.LoadRecursive() +90
   System.Web.UI.Control.LoadRecursive() +185
   System.Web.UI.Control.LoadRecursive() +185
   System.Web.UI.Control.LoadRecursive() +185
   System.Web.UI.Control.LoadRecursive() +185
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4700.0