code: function (xformMode, key, cfg) {
              // Apply config defaults
              this.cfg = this.cfg.extend(cfg);
  
              // Store transform mode and key
              this._xformMode = xformMode;
              this._key = key;
  
              // Set initial values
              this.reset();
          }
docs: Initializes a newly created cipher.
  
  @param {number} xformMode Either the encryption or decryption transormation mode constant.
  @param {WordArray} key The key.
  @param {Object} cfg (Optional) The configuration options to use for this operation.
  
  @example
  
  var cipher = CryptoJS.algo.AES.create(CryptoJS.algo.AES._ENC_XFORM_MODE, keyWordArray, { iv: ivWordArray });