分布式系统和电子商务的安全以公钥基础结构(PKI)为基础，为实现信息的安全交换，用户可从PK I中得到另一用户的公钥及其证书。

A public-key infrastructure (PKI) is a prerequisite for security in distributed systems and for electronic commerce. For secure communication, an user can get another user's public key from PKI.

youdao

分布式系统和电子商务的安全以公钥基础结构(PKI)为基础，为实现信息的安全交换，用户可从PK I中得到另一用户的公钥及其证书。

A public-key infrastructure (PKI) is a prerequisite for security in distributed systems and for electronic commerce. For secure communication, an user can get another user's public key from PKI.

youdao