只给证书所有者(最终实体)发行证书。
Issues certificates only to certificate holders (end entities).
如果我们仅仅保留了实体环境，那最终会将二者都丧失殆尽。
But if we save only the physical environment, we will ultimately lose them both.
最终，我们的目标不应是证明实体世界相对于虚拟世界的优越性，而是让它们和谐共存。
Ultimately, our aim should not be to assert the superiority of the physical world over the virtual, but to make them work together.
应用推荐