Using a Digital certificate (Digital id) from a trusted certificate authority in conjunction with SSL encryption provides a very high grade of security for all parties involved in a transaction.

使用发自可信的证书授权中心的数字证书(数字id)，连同ssl加密，可为交易中的各方提供很高等级的安全保障。

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Digital certificates: Digital certificates are electronic ID cards issued by trusted parties know as Certificate Authority (CA) that establish credentials.

数字证书： 数字证书是由受信任方即认证机构（CA）发布的电子 ID 卡，用于建立凭证。

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The trustworthiness of a digital certificate ultimately depends on how the issuer has safeguarded their digital ID.

CNN: Technology - E-Signature Act may drive demand for authentication technology