(function() {
                    var nodeEnv = typeof require !== 'undefined' && typeof process !== 'undefined';
                    var __module = nodeEnv ? module : {exports:{}};
                    var __filename = 'preview-scripts/__node_modules/browserify-aes/modes/ctr.js';
                    var __require = nodeEnv ? function (request) {
                        return cc.require(request);
                    } : function (request) {
                        return __quick_compile_project__.require(request, __filename);
                    };
                    function __define (exports, require, module) {
                        if (!nodeEnv) {__quick_compile_project__.registerModule(__filename, module);}var xor = require('buffer-xor')
var Buffer = require('safe-buffer').Buffer
var incr32 = require('../incr32')

function getBlock (self) {
  var out = self._cipher.encryptBlockRaw(self._prev)
  incr32(self._prev)
  return out
}

var blockSize = 16
exports.encrypt = function (self, chunk) {
  var chunkNum = Math.ceil(chunk.length / blockSize)
  var start = self._cache.length
  self._cache = Buffer.concat([
    self._cache,
    Buffer.allocUnsafe(chunkNum * blockSize)
  ])
  for (var i = 0; i < chunkNum; i++) {
    var out = getBlock(self)
    var offset = start + i * blockSize
    self._cache.writeUInt32BE(out[0], offset + 0)
    self._cache.writeUInt32BE(out[1], offset + 4)
    self._cache.writeUInt32BE(out[2], offset + 8)
    self._cache.writeUInt32BE(out[3], offset + 12)
  }
  var pad = self._cache.slice(0, chunk.length)
  self._cache = self._cache.slice(chunk.length)
  return xor(chunk, pad)
}

                    }
                    if (nodeEnv) {
                        __define(__module.exports, __require, __module);
                    }
                    else {
                        __quick_compile_project__.registerModuleFunc(__filename, function () {
                            __define(__module.exports, __require, __module);
                        });
                    }
                })();