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 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: 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) +14218417
   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