code: function Curl(state) {
    // truth table
    this.truthTable = new Int8Array([1, 0, -1, 2, 1, -1, 0, 2, -1, 1, 0]);
    this.HASH_LENGTH = Const.HASH_LENGTH;
    this.initialize(state);
    this.reset();
  }
docs: *      Cryptographic related functions to IOTA's Curl (sponge function)