我可以調整洋蔥路由迴路中所使用的中繼節點數量嗎？

Right now the path length is hard-coded at three (except if you're accessing an onion service).

Why not longer?

我們不鼓勵使用者改用更長的路徑，因為這只會增加網絡負載量（據我們所知），但卻不會提供更高的安全性。

Also, using paths longer than three could harm anonymity, first because it makes denial of security attacks easier, and second because it could act as an identifier if only a small number of users have the same path length as you.

Why not shorter?

If we made two-hop paths, then a relay on either end of the circuit would know which relay it needs to attack (whether break into, collaborate with, or maybe just surveil) in order to identify the user.

Whereas with three-hop paths, a relay on one end doesn't immediately know which relay they would need to attack, increasing the cost, effort, and uncertainty of an attack.