code: function injectBytes(bs, leftPadding) {
          var p = leftPadding || 0;
          var address = scrypt_raw._malloc(bs.length + p);
          scrypt_raw.HEAPU8.set(bs, address + p);
          for (var i = address; i < address + p; i++) {
            scrypt_raw.HEAPU8[i] = 0;
          }
          return address;
        }
docs: ---------------------------------------------------------------------------