encryption in asp.net error?

A

ApurvA

New member
JAI MATADI to all . .


m writing this code in my PAGE1.ASPX.CS page ..

public partial class page1 : System.Web.UI.Page
{
public string encryptQueryString(string strQueryString)
{
ExtractAndSerialize.Encryption64 oES = new ExtractAndSerialize.Encryption64();
return oES.Encrypt(strQueryString, "!#$a54?3");
}
}

but m getting underline showing error under "ExtractAndSerialize" saying

"The Type or Namespace name ExtractAndSerialize could not be found (are you missing a using directive or an assembly refferance ? )"

but i dont know in "using. WHAT ???? " i should add then . :(

please tell me what should i do to remove this error ..

thank you . .
@john

i have already added this four

using System.Security.Cryptography;
using System.Text;
using System.Web;
using System.IO;

but still m getting the same :(
 
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