Text To Byte Conversion

Here's a function to pass a string of text and receive a list of bytes. A second function is provided to work in reverse. These methods are especially useful for working with encryption.

Text2Bytes.lsl

<lsl> list text2bytes(string text) {

   string base64 = llStringToBase64(text);
   list bytes;
   integer i;
   integer n = llStringLength(base64);
   integer dword;
   for(i = 0; i < n; i += 4)
       bytes += [  ((dword = ((llBase64ToInteger(llGetSubString(base64, i, i + 3) + "==") >>  8) & 0xFFffFF)) >> 16), 
                   ((dword >> 8) & 0xFF), (dword & 0xFF) ];
   return llList2List(bytes, 0, (-3 >> !!(dword & 0xFF00)) | !!(dword & 0xFF));

}

string bytes2text(list bytes) {

   string text = "";
   integer i = 0;
   integer n = llGetListLength(bytes);
   for(; i < n; i += 3)
   {
       integer dword = 
           (llList2Integer(bytes, i) & 0xFF) << 24 
           | (llList2Integer(bytes, i + 1) & 0xFF) << 16 
           | (llList2Integer(bytes, i + 2) & 0xFF) << 8;
       text += llGetSubString(llIntegerToBase64(dword), 0, 3);
   }
   return llGetSubString(llBase64ToString(text), 0, n - i - 1);

}

default {

   state_entry()
   {
       list bytes = text2bytes("Hello, Avatar!");
       llSay(0, llList2CSV(bytes));

       string text = bytes2text(bytes);
       llSay(0, text);
   }

   touch_start(integer total_number)
   {
       list bytes = text2bytes("Touched.");
       llSay(0, llList2CSV(bytes));

       string text = bytes2text(bytes);
       llSay(0, text);
   }

}

</lsl>