function response(room, msg, sender, isGroupChat, replier, ImageDB) {
   if (msg.indexOf("!암호화 ") == 0){
      var data = msg.split(" ");
      if (data[1] = 1){
         if (data.length == 4){
            var data2, data3;
            for (var order = 2; order < 3; order++){
               var a = [];
               var abin = [];
                  for (var i = 0; i<data[2].length; i++){
                     a.push(data[order][i].charCodeAt());
                     abin.push([]);
                     var temp = a[i];
                     for (var j = 0; j<8; j++){
                        abin[i].push(temp%2);
                        temp = Math.floor(temp/2);
                     }
                  }
               if (order == 2){
                  data2 = abin;
               } else if (order == 3){
                  data3 = abin;
                  data3len = data3len.length;
                  while (data2.length > data3.length){
                     data3.push(data3[Math.floor(data3.length/data3len)]);
                  }
               }
            }
            var resurtbin = [], resurt;
            for (var i=0; i<data2.length; i++){
               var k = 0;
               resurtbin.push([]);
               for (var j=0; j<8; j++){
                  resurtbin[i].push((data2[i][j] + data3[i][j]) % 2);
                  k += resultbin[i][j] * Math.pow(2,7-j);
               }
               result = result + String.formCharCode(k);
            }
            replier.reply(result);
         }
      }
   }
}