The main reseach works we do as follows : ( 1 ) cryptograph is the effective and the only technicle to ensure data confidentiality . in this paper we expended the basic concept and class of encrpytion techniques . 本文做的主要研究工作如下： ( 1 )加密技术是实现数据机密性有效甚至是唯一的解决方案，本文首先对加密技术进行了探讨，介绍了相应的加密机制并进行了分析。
On the basis of standard , the paper brings forward and analyses the principle of trust soap security system architecture , and expounds the key technology security token , xml encryption and xml signature of ws security 在web服务安全规范ws - security的基础上，提出并分析了新的可信soap安全性模型的体系架构设计的基本原理并阐明了它的优点，对安全规范的关键技术? ? xml签名机制与xml加密机制也做了详细阐述。
It is an energy meter of high precision , high reliability , large load capacity , low power consumption , multifunction and long life developed and produced by the hangyuan company with the most advanced specific ic and high grade components according to the international technology 它采用独特的卡口安全及保护措施动态安全可靠的ic卡加密机制先进的硬件及软件的容错处理性能安全可靠，具有精度高自身功耗低体积小寿命长便于安装等特点。
For example , pdk and address of ic card in sms are mandoray to implement the conditial access flow . and authorization information from sms tells ca system that which ic card can access particular programs . what ' s the most important , functions of subscribe management system are described very carefully later 例如，在ca系统的三重密钥机制中， sms的pdk和智能卡地址信息是加密机制运作的根本；在ca系统的加扰流程中， sms节目授权信息是决定ca系统向哪些用户传送经加密的密钥的根据等等。
Based on the analysis of relatively mature network security technology that can be introduced by sip , by the means of improving and applications , the article realizes tls hop - by - hop encryption , s / mime end - to - end encryption mechanism , improved http digest authentication , s / mime end - to - end signature mechanism and so on 在分析现今可以借鉴的用来对sip通信进行保护的相对比较成熟的网络安全技术的基础上,通过改进和应用,实现了包括tls逐跳加密, s / mime端到端加密等的加密机制以及改进的http摘要认证, s / mime端到端签名等的身份鉴定机制。
Inspired by ws security design thought , the paper tried to utilize available security technologies to design and realize the ws security system architecture base on trust soap , and , explains the implementation of every part ' s function , especially of xml signature and xml encryption 最后，本文遵循ws - security的思想，使用现有的安全技术设计与实现了一个基于可信soap安全性模型的ws - security架构，并对各部分的功能及实现机制作了详细介绍，详细分析了xml签名机制与xml加密机制。
The meijiayi mjy channels therapeutic apparatus developed by our company , combines the advanced microcomputer technics with the profound traditional chinese medicine methods as well s the human channelss science , magically takes advantages of modern electronic technics and the outer treatment of chinese medicine , realistically simulated the effects like acupuncture , aprapathy , essage , eating , kin scraping and cupping , etc . which improve the comprehensive effects , especially for the common ailments and geriatric diseases in digest digestive system , respiratory system and nervous system 旋翼式多流束湿式基表，双脉冲采样方式进行数据采集，采用计算机技术进行数据处理显示控制阀门动作。它采用独特的卡口安全及保护措施动态安全可靠的ic卡加密机制先进的硬件及软件的容错处理性能安全可靠，具有精度高自身功耗低体积小寿命长便于安装等特点。能准确实现用水计量及实现预付费功能。
Secondly , some encryption algorithms are introduced , with the analysis and comparison for these encryption algorithms , the author designs an appropriate project to accomplish the end - to - end encryption . thirdly , this paper accomplish the design of an encryption scheme which combining the strongpoint of the rsa algorithm and the idea algorithm . the main process is as following : first , input the digital signal to the encryption device , and then the digital signal exclusive or with the keying sequence which is generated by key stream generator ( ksg ) and the ksg is based on the idea encrypting and deciphering algorithm , the secret key synchronization is also studied 本课题主要研究的内容是数字集群通信系统加密机制的研究,首先介绍了数字集群通信系统的安全保密机制,讲述了单向和双向鉴权的过程、单呼和群呼的空中接口加密过程及其密钥的选用和管理,特别介绍了端到端加密;然后介绍了几种常用的加密算法,通过分析其优劣,提出了端到端加密的解决方案;最后完成了基于rsa算法和idea算法的数字集群通信系统加密方案的设计,其具体过程为将经过数字信号送入加密器里,和以idea加密算法为基础设计的密码流发生器( ksg )产生的密码序列进行加解密运算,并且研究了此加密过程的密码同步问题。
