查询词典 post office protocol

The protocol can effectively prevent against the collusion attacking by buyer and the third party, the collusion attacking by seller and the third party, and the intermediate personate attacking.(3) A new buyer-reseller watermarking protocol is proposed in the thesis.

提出了一种新的交互式买方—卖方数字水印协定，通过采取新的水印嵌入和加密计划，有效地阻止了买方与第三方、卖方和第三方的合谋攻击，以及中间人攻击。

In the distributed computing environments such as wireless network, the key exchange protocol with mutual authentication is critical to the following secure sessions between communicators and more attentions are paid to the provability of the protocol security.

在基于无线网络的分布式环境中，带认证的密钥协商协议对通信双方是否能够建立安全的会话至关重要。

The fourth aspect is about authentication protocols analysis in special systems. We gave out the security analysis of AKE protocol and reauthentication protocol in the POD copy protection specification. We also gave out the security analysis of AKE protocols in DTCP specification.

在特定系统中认证协议分析方面，给出了配置点拷贝保护系统中认证密钥交换协议和重新认证协议的安全分析；给出了数字电视拷贝保护规范中的完全认证协议的安全分析。

The key point of the thesis was system's communication. The paper offered a simple and effective communicate method which achieved data communication between computer and PLC. The paper discussed the system how to change data、transfer and rejigger parameter accurately、advert problems in communication process between computer and PLC. This method is applied and innovative. The paper described the TCP protocol and its encapsulated Winsock module and its application for data communication of remote control. User defined protocol is used for data exchanging between the client and the control server.

本文提出了一种简单有效的通信方式实现了计算机通过串口与PLC的本地数据通信，阐述在实现上位机与下位机的通信过程中，如何在上位机进行数据转换、参数正确传递和更改以及实现方法和注意的问题，该方法具有一定的实用性和创新性；基于TCP协议，使用封装组件Winsock进行实时控制的数据交换是远程控制的核心任务，对此文中首先探讨选用TCP协议和Winsock封装组件的理由，详细描述了如何通过Winsock组件进行数据通信以及自定义协议。

In the paper, we improve CHAP protocol by substituting password in the protocol with fingerprint after analyzing the security of CHAP. In addition, an improved secure lock is designed by using the Chinese Remainder Theorem, which is used for key management of the confidential cell broadcast.

另外，针对GSM中加密小区广播的密钥管理问题，本文利用中国剩余定理设计了一种改进的"安全锁"，用于加密小区广播的密钥管理，保证了系统的前向安全和后向安全，降低了系统开销。

So this paper puts forward an Energy Balance Data Query Protocol based on Ant Colony Optimization. This protocol rewards or punishes a path according to the energy consumption by pheromone decentralize energy consumption into different paths, and reposefully demotes the energy consumption of the whole network.

因此，提出一种基于蚁群优化的能量均衡数据查询协议EBDQ(energy balance data query protocol based on ant colony optimization)，根据路径上的能量消耗情况，通过信息素对其进行奖惩，使网络的能量消耗分散在不同的路径上，让整个网络的能量平稳降级。

The security and cost of the protocol are evaluated and the results show the resiliency and efficiency of the proposed protocol.

对协议的安全性和开销进行了广泛和深入的分析，证明了协议的安全性和有效性。

This is in contrast to other routing protocols, such as the Routing Information Protocol, or the Border Gateway Protocol.

这和其他的路由协议，如RIP，BGP，形成对比。

Finally, the programme of design for routing protocols is chose in the thesis. Secondly, improved algorithms are introduced in detail. In order to achieve to reduce duplication of data sent in, save energy, prolong the network lifetime and balance the network load, improved algorithms are based on the minimum hops algorithm which is one of the energy-aware routing, When the characters of the minimum hops algorithm are analysed in detail,multi-path routing, adaptive dynamic routing, routing reliability are designed.Then a new algorithm based on minimum hops in plane routing protocol and a new algorithm based on minimum hops in clustering routing protocol are designed in the thesis.

接著详细介绍了本文的改进路由算法，为实现减少数据的重复发送量、节约能量、延长网络寿命、平衡网络负载的目标，本文以能量感知路由之一的最小跳数算法为基础，详细分析了最小跳数算法的特点，设计了多路径修正路由，自适应动态路由，路由可靠性机制三方面的改进方案，并且结合改进方案设计了基于最小跳数的改进平面路由协议和基于最小跳数的改进分簇路由协议，将两种类型算法的优点相结合，提高网络的健壮性与可扩展性。

A transport protocol that provides for the SCSI protocol to be carried over a TCP based IP network.

一种能够使SCSI协议在基于TCP的IP网络上传输的传输协议。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。