Network construction of digital communication includes two main parts. First, construction of digital exchange network;
数据通信的网络建设工程包括两个主要内容：第一，构建数据交换网络。
We'll introduce the technology of designing the software system of the HJD-500/1000 digital exchange using programming language C on TP-86D single-board computer.
本文介绍在设计HJD-500/1000型数字交换机软件系统时在单板机环境下使用C语言的实现技术。
This digital identity can then be used to exchange text securely by encryption using the key pair.
然后可以使用这个密钥对通过加密来利用数字身份安全地交换文本。
XML Encryption relies entirely on the XML Digital Signature specification for key exchange.
对于密钥交换XML加密完全依赖于 XML数字签名规范。
An asymmetric key (public key) algorithm is used for the exchange of the secret keys to be used in symmetric algorithm and for digital signatures.
对称密钥(公钥)算法用于交换在对称算法中使用的加密密钥，以及用于数字签名。
The world of information is becoming more and more digital and dynamic, and Internet can be considered nowadays as the lead medium for data exchange and information dissemination.
信息世界越来越数字化和不断变动；可以认为因特网是交流资料和传播信息的主要媒介。
SSL USES digital certificates to exchange keys for encryption, server authentication, and optionally, client authentication.
SSL使用数字证书为加密、服务器验证以及客户机验证(可选)提供密钥交换服务。
At a connection handshake, SSL utilizes public key algorithms and digital certificates to establish trust between parties that haven't met before and exchange private keys for the current session.
在连接握手时，SSL利用公钥算法和数字证书在素不相识的各方之间建立信任并交换当前会话的私钥。
Thus a base station of PHS is compatible with ISDN and is often connected directly to ISDN telephone exchange equipment e.g. a digital switch.
因此，小灵通基站也可与综合业务网系统相匹配并且经常作为综合业务网电话的交换设备。譬如，电子交换机。
In the meantime, soldiers will find it hard or outright impossible to share, say, vital digital maps, let alone synch their iPods or exchange pictures with their families.
同时，美军士兵将会发现，他们很难或根本无法分享重要的数字地图了，而用iPod下载音乐或同家人交换照片就更不可能了。
News Corporation has called for a digital-rights exchange similar to the one that Mr Hargreaves has proposed.
新闻集团则呼吁建立一套与哈古瑞夫斯教授的提议相仿的数字版权交换体系。
As I wrote in a previous column, the technology could also permit the exchange of other types of digital contracts.
正如我在之前的专栏中所写，这种技术还可以实现其他类型数字合约的交换。
Digital whiteboards in the study rooms permit the most up-to-date interactive communication and data exchange.
学习室中的数码白板可以连接世界最先进的互动通信和数据交换。
Postal and telecommunications to achieve the program-controlled exchange, digital transmission will take the lead in the province completed the first telephone counties.
邮电通讯实现了交换程控化，传输数字化，并率先在全省建成了第一个电话县。
These are de-centralised digital (or electronic) medium of exchange.
这些都是去集中式数字（或电子）的交换媒介。
This indicator does not measure the percentage of exchanges which are digital, the percentage of inter-exchange lines which are digital or the percentage of digital network termination points.
这个指标不用于度量数字交换机的百分比、数字汇接交换线数百分比及数字网络终端点百分比。
Cryptography is the core of security technologies, and encryption, decryption, digital signature, key exchange etc. are the important mechanisms to guarantee the safety.
密码学是安全技术的核心，其中的加密解密、数字签名、密钥交换等技术是起到保障作用的重要机制。
This paper aims at researching on a digital works electronic transaction platform based on fair exchange protocol.
本文旨在研究一个基于公平交易协议的数字作品电子交易平台。
A multiuser conference system based on the digital audio exchange technology is constructed.
构建了一个基于数字语音交换技术的多方会议系统。
The system structure and work theory are introduced. The key technology and basic theory of the digital audio exchange and mixing are expatiated.
介绍了系统结构、工作原理，阐述了数字语音交换、混合等关键技术和基本原理。
A theory pattern of e-book service is established for the digital library based on DRM technologies of e-book exchange (EBX) system.
本文依据电子书交换系统(ebx)的DRM技术，构建了数字图书馆电子书服务的理论模式。
The construction of digital campus is always related to the conformity, integration and exchange of different data resources.
数字校园的建设必然涉及到各种数据资源的整合、集成与交换。
The Digital Rights Management (DRM) is a general solution to utilization, storage, exchange and tracking of digital contents and their rights.
数字版权管理技术从数字内容及其权限的使用、存储、交换、追踪等方面给出了全面的解决方案。
Aiming at the problem of fair exchange of digital signatures, a scheme of revocable concurrent signatures is proposed.
针对数字签名的公平交换问题，提出了可废除并发签名机制。
In medical information system, DICOM (Digital Imaging and Communication in Medicine) standard is the technical guarantee that ensures all modalities device exchange image data compliantly.
是各种影像设备必须遵循的有关医学影像传输与存储的标准，它使得医疗影像设备能够兼容地交换图像信息。
The system may be widely used in time synchronization in Synchronous Digital Hierarchy (SDH) communication network and exchange and other timing application cases.
该系统可应用于SDH通信网时间同步、交换机时间同步等高精度定时领域。
How more convenient for interactive multimedia information exchange, let the audience get more information services, is currently a major area of digital television needs.
如何更加方便的进行多媒体信息的互动交流，让受众得到更多的信息服务，是当前数字电视广播领域的一大需求。
And the paper studies and works out monitoring software in the whole system, including A/D acquisition and control, data exchange, DCI driver and digital signal filtering and data preprocess software.
并研究编制了整个系统的监控软件，包括A/D采集和控制、数据通讯、显控等部分接口驱动程序以及数字信号滤波数据预处理软件；
And the paper studies and works out monitoring software in the whole system, including A/D acquisition and control, data exchange, DCI driver and digital signal filtering and data preprocess software.
并研究编制了整个系统的监控软件，包括A/D采集和控制、数据通讯、显控等部分接口驱动程序以及数字信号滤波数据预处理软件；
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