EmelyanenkoK

// look up tables
var to_hex_array = [];
var to_byte_map = {};
for (var ord = 0; ord <= 0xff; ord++) {
  var s = ord.toString(16);
  if (s.length < 2) {
    s = "0" + s;
  }
  to_hex_array.push(s);
  to_byte_map[s] = ord;

EmelyanenkoK

import ctypes
import ctypes.util

sodium = ctypes.cdll.LoadLibrary(ctypes.util.find_library('sodium') or ctypes.util.find_library('libsodium') or '/usr/lib/libsodium.so.18')

def __check(code):
    if code != 0:
        raise ValueError

# old code