网上交易，参与交易的人是通过（）来确认彼此的身份。 - 查题网

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国家开放大学 / 电子支付与安全

网上交易，参与交易的人是通过（）来确认彼此的身份。

A.
认证中心确认后告诉参与交易的人

B.
发带数字签名的邮件而把自己的证书传给对方

C.
签名

D.
数字信封传送自己的证书

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电子支付与安全

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