The limitation of symmetric cryptosystems is that the key distribution is difficult 对称密钥密码系统的缺陷是密钥分发困难。
2.
Asymmetric cryptosystems can make their public keys published and provide a better solution for the key distribution issue 非对称密钥密码系统由于可以公开公钥,从而较好地解决了密钥分发问题。