Server Error in '/' Application.

Invalid length for a Base-64 char array or string.

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: Invalid length for a Base-64 char array or string.

Source Error:


Line 388:        string EncryptionKey = "MAKV2SPBNI99212";
Line 389:        cipherText = cipherText.Replace(" ", "+");
Line 390:        byte[] cipherBytes = Convert.FromBase64String(cipherText);
Line 391:        using (Aes encryptor = Aes.Create())
Line 392:        {

Source File: C:\Inetpub\vhosts\kcpgclko.in\httpdocs\App_Code\Admission_Helper.cs    Line: 390

Stack Trace:


[FormatException: Invalid length for a Base-64 char array or string.]
   System.Convert.FromBase64_Decode(Char* startInputPtr, Int32 inputLength, Byte* startDestPtr, Int32 destLength) +14218861
   System.Convert.FromBase64CharPtr(Char* inputPtr, Int32 inputLength) +131
   System.Convert.FromBase64String(String s) +50
   Admission_Helper.Decrypt(String cipherText) in C:\Inetpub\vhosts\kcpgclko.in\httpdocs\App_Code\Admission_Helper.cs:390
   ViewGallery.Page_Load(Object sender, EventArgs e) in C:\Inetpub\vhosts\kcpgclko.in\httpdocs\ViewGallery.aspx.cs:20
   System.Web.UI.Control.OnLoad(EventArgs e) +108
   System.Web.UI.Control.LoadRecursive() +90
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4110.0