PKI是一种公共密钥证书标准，它提供了一种安全的网上支付方式。

PKI is a proposed standard for public-key certificates, which can provide the safe payment way.

youdao

PKI是一种公共密钥证书标准，它提供了一种安全的网上支付方式。

PKI is a proposed standard for public-key certificates, which can provide the safe payment way.

youdao