如何防止签署者事后否认签章 第一章 电子商务导论 电子商务理论与实务 1-36 电子凭证(Electronic Certificate) 凭证内容包括：凭证序号、客户名称、公开金钥、凭证有 效期限、CA单位名称及CA之数位签章等。
基于38个网页-相关网页
first-class radio electronic certificate 一等无线电子员证书 ; 一级无线电电子证书
second-class radio electronic certificate 二级无线电电子证书
class radio electronic certificate 一等无线电子员证书
ELECTRONIC CERTIFICATE OF ORIGIN 电子原产地证
electronic certificate authority 电子认证
first class radio electronic certificate 一等无线电子员证书
Electronic registration certificate number 电子注册证号
electronic gift certificate 电子礼品券
Environmental Electronic Packaging Certificate Program 环保包装工程师职业认证
This article introduces the application of LDAP in PKI system, and describes mainly how to utilize LDAP server to store and back up the electronic certificate.
本文较深入地介绍了LDAP协议在PK I体系中的应用，主要讲述了如何利用LDAP服务器存储以及备份电子证书。
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。
At last, based on attribute certificate, a model is constructed to solve the authorization and access-control problem, to realize secure access-control in the electronic government.
最后使用此策略构造了一个基于属性证书的授权和访问控制模型，能够灵活方便地实现电子政务中的安全访问控制。
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