A public key infrastructure (PKI) is a means for associating public keys with the respective user identities using a Certification Authority (ca).
公钥基础设施(PKI)是将公钥与使用证书颁发机构(CA)的相应用户标识进行关联的一种方法。
The criteria can be different for each PKI, but once the CSR is approved, the CA fulfils the request by issuing a certificate.
对于每个PKI，标准可能各不相同，但在批准CSR 之后，CA 将通过颁发证书来完成请求。
We analyze the present situation and question of ca construction in our country, discuss how to solve these questions and forecast the future research direction on PKI and the ca construction.
分析研究了我国CA建设的现状以及存在的问题，讨论了解决这些问题的方向，同时展望了PK I建设与CA构建继续研究的方向。
Finally, how the secure email client application is utilized to cooperate with the ca based on PKI developed simultaneously is elaborated.
最后，介绍了此安全电子邮件系统如何配合同时开发的基于PKI的证书系统的应用。
Although PKI-based authentication provides better flexibility and security, the computation load is much heavier, also ca servers will become network bottlenecks and attacking targets.
基于PKI的认证方法提供了较好的灵活性和安全性，但计算量较大，CA服务器也易于成为网络瓶颈和攻击目标。
On the base of analyse, research of standard Certification Authority (ca) system, bring forward and realize ca system of PKI-based in OAM system.
在对标准认证机构CA进行分析、研究的基础上，提出并实现了OAM中基于PK I规范的认证机构CA系统。
Ca certification management is the key of PKI actualization. It includes all process from initialization to cancellation of the key and certification.
CA证书管理是PKI网络安全体系实施的关键，它涉及到密钥和证书从创建到撤销的整个过程。
Formed by two parts mainly as to PKI entity: The Registration Authority (ra) and Certificate Authority (ca).
就PK I实体来讲主要由两部分构成：注册机构(RA)和认证机构(CA)。
The different trust way between CA and the users constitutes different kind of PKI trust model.
根据CA和用户之间以及各CA之间不同的信任方式构成各种PK I信任模型。
With the digital certification enacted by CA, Public Key Infrastructure (PKI) provides a framework to construct and manage the trust relationship.
PKI利用可信的第三方认证机构（CA）签发的数字证书在网络通信中建立和管理信任。
Ca authentication center is an importance in the system of PKI, Complete PKI basal function.
CA认证中心是PKI系统中的重要组成部分。完成了PKI的基础的功能。
By generating this signature, a CA certifies Chapter 2: Understanding PKI Building Blocks the validity and authenticity of the information in the fields.
生成这个签名，CA认证第2章：了解PK I构建模块领域的信息的有效性和真实性。
The author of this paper do some research in the PKI basic system, several kinds of common PKI trust model and the CA construction in each kind of trust model.
本文围绕着PKI基本体系和几种常见PKI信任模型以及各种模型中CA的构建方式展开了讨论和研究。
Using commercial PKI/CA must be expensive when building PKI systems within companies and organizations.
单位内部建设PKI系统，若采用商业PKI/CA，势必成本高昂。
Protecting the CA private key is the key issue of the whole PKI.
保护CA私钥的安全性是整个PKI安全的核心。
Similar bridge CA trust model partitions the current PKI system by geography position forming several subareas; every subarea has many trust areas.
类桥CA结构信任模型将已有的PKI体系按地理位置划分为不同的分区，每个分区中包含多个信任域。
Similar bridge CA structure model satisfies the requirement of PKI system's extending.
类桥CA结构模型满足了PK I体系大范围扩展的需求。
CA is PKI's central executive organization, the main component of PKI, which is a third party representing authority, credibility and fairness.
认证机构CA是PKI的核心执行机构，是PKI的主要组成部分，是一种权威性、可信任性和公正性的第三方机构。
Then, this paper researched and analyzed the middle key of system technology, including the network data monitor technology, analytical technology of agreement, PKI and CA.
对系统中间的关键技术包括网络数据监听技术，协议解析技术，PKI与CA进行了研究和分析。
As a new type of PKI, non-repudiation PKI make makes the terminal users able to control the validation of his CA, which will reduce the expense.
免撤销公钥框架作为一种新的PKI使得终端用户可以控制他自己的公钥证书的有效性，使验证证书不需要折回到CA去获取证书撤销信息，从而降低其使用代价。
This paper presents the design and implementation of a single-CA-multi-RA plus cross-certification PKI model for campus networks.
该文提出一种适合于园区网的单ca多ra加交叉认证的PKI模型的设计及实现。
This paper presents the design and implementation of a single-CA-multi-RA plus cross-certification PKI model for campus networks.
该文提出一种适合于园区网的单ca多ra加交叉认证的PKI模型的设计及实现。
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