安全通信

In the modern communication society, there is wide spread need of secure transmission of secret information, such as the commercial trade and the communication in network, which need to be on the guard of the attack of the eavesdropper.

当今信息社会对于保密信息的安全传输有着广泛的需求，商业贸易、网络通信等都需要防范窃听者的侵入。

Applications are potentially very broad but the device specifically brings benefit to areas such as remote data telemetry systems, handheld instrumentation, PDA's, EPOS and data recorders as well as integrated communications in cameras, security systems and other intelligent sensors or peripherals.

其应用潜力十分广泛，然而因它而获益非浅的领域主要是远程数据遥测系统、手持式设备、 PDA、 EPOS和数据记录仪，以及摄像机、安全保卫系统和其他智能化传感器或后外围设备的综合通信系统。

How to select suitable HDLC subclasses for a fail-safe message transferring system based on the service quality of the data link layer and the communication structure parameters of the physical layer is described in detail.

介绍了HDLC规程类别，描述了如何根据数据链路层服务质量要求及物理层通信结构参数，为故障安全的消息传输系统选择合适的HDLC子

With this, there is a forceful guarantee for the safe operation of communications equipment.

这样有力的保证了通信设备的安全运行。

In order to guarantee the safety of power system and acquire its running status, all kinds of real time parameters in power system need to be measured. The power quality analyzer is designed for this specific use. The instrument can measure three - phase power parameters and peak value, analyzer harmonic and communicate with PC. It is characterized with the high-precision, convenient carrying and friendly interface.

为保证电网安全运行并全面了解电网的运行状况，需要对电网的各种运行参数进行实时测量，电能质量分析仪即是为此设计的专用仪器，它集三相电参数测量、峰值测量、谐波分析、上位机通信为一体，具有精度高、携带方便、界面友好的特点。

The technology of verifier Hash code is used to defense Denial of Service attack.

改进的远程安全密钥协议通过合并简化协商过程来匹配H.323系统消息的通信流程，改进的鉴别符哈希码技术用于抵抗篡改攻击及拒绝服务攻击。

In order to communicate securely with the server, the consumer gets an association with the server discovered in step 2, using an existing association if it is available, otherwise visiting the server and using Diffie Hellman to negotiate a shared secret with which to sign communication.

为了能够与身份验证服务器安全的通信，应用服务器需要向（从第2步获取的）身份验证服务器请求一个协议。

The paper,combined with public-key certificate technology, designs a new data encryption scheme based on Hyperelliptic curve.

本文在超椭圆曲线上，结合公钥证书技术设计了一个新的数据加密方案，该方案具有安全性高，加密和签名速度快，通信量少等优点，特别适合用于解决用户群是一些计算能力和存储能力受限的系统中的安全问题。

Based on wireless transmission technology, a project for the real-time transmission of inshore meteorological datas was presented, which is economic, safe and effective.

基于无线通信技术，为近岸的海洋气象数据实时传输提供了一套经济、安全、有效的方案。

This paper analyses the PKI theory architecture detailedly, combining with researching the information security status quo and the wireless communication systems. On this condition, we put forward the feasible WPKI system, CA sub-system and RA sub-system logical frame diagram and network structure blue print. The technical criterions in the system and core content of WPKI, includes the certificate management(certificate requirement, certificate issue, certificate revocation, certificate query and so on), are discussed at length. In the end, the systems function and performance are tested.

本论文对已广泛应用的PKI理论体系进行进行详细的分析，并结合国内外信息安全发展现状和无线通信系统，提出了完整可行的作为权威第三方，提供数字整数的WPKI系统实现的方案，以及其子系统CA子系统和RA子系统的逻辑结构图、网络结构设计图，介绍了系统中的技术规范，详细讨论了WPKI的核心内容——证书管理(证书请求、证书颁发、证书撤销和证书查询等)，并对WPKI系统进行了功能和性能的测试。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。