Obtained from the work principle of PGP, some technical core algorithms of PGP are analyzed, such as message-digest al-gorithm 5, the digital signature algorithm of RSA and the encryption algorithm principle and security of IDEA.

In the case of message-digest authentication, the authentication data field contains the key-id and the length of the message digest that is appended to the packet.

在讯息摘要认证状况，认证资料栏位包含附加到封包的键识别子和讯息摘要的长度。

To manage the redundancy files and provide a way to verify transferred files, DFTP use a Message-Digest Algorithm 5 to assign characteristic code to files.

为了解决系统中的文件冗余、副本管理、传输校验等问题，采用了MDS信息摘要算法来对文件建立特征码，以特征码为系统中文件管理的主要依据。

Message-Digest Algorithm 5 is a widely-used algorithm for abstracting digital fingerprint. It is produced by complex linear operation and one-way encryption algorithm.

MD5算法是当今应用最广泛的提取数字指纹的算法，其采用复杂的线性运算和单向加密生成数字指纹。

This paper describes MD5 message-digest algorithm, analyses the security problem in E-Commerce and then probes into the theoretical probability and realizing mechanism of applying MD5 message-digest algorithm to achieving security in E-Commerce.

首先描述了MD5报文算法，然后在分析电子商务中的安全问题基础上，深入探讨了采用MD5算法保证电子商务安全性的理论可行性和实现机制。

Application of MD5 Algorithm in Information Synchronization in a Hot Dual Redundancy System

MD5算法在双机热备份信息同步中的应用

Design Space Exploration and Analysis of High Performance MD5 IP Core

高性能MD5算法IP核的设计空间探索与分析

Verification Application Based on MD5 Technology

基于MD5技术的认证校验应用

MD5 Encryption Algorithm and Application in RADIUS Protocol

MD5加密算法及其在RADIUS协议中的应用

MD5 data abstract algorithm to check the integrality;

为验证系统完整性而采用的MD5数据摘要算法；

MD5 Algorithm and Security Transfer of Web Password

MD5算法与Web口令的安全传输

The Research and Performance Optimization of MD5

MD5算法的技术研究及性能优化

A web site update auto-checking system is designed by the MD5 algorithm.

通过MD5算法设计了一个网站更新自动检测软件。

A compression configuration file based on md5 digests is designed.

设计了md5摘要配置文件，用于对文件系统中的压缩算法进行唯一标记，并允许嵌入式系统的开发者对单个文件的压缩算法进行选择。

Design and Implementation of a Pseudo 32-bit MD5 Encryption Algorithm

一种伪32位MD5加密算法设计与实现

The Encryption Techniques of MD5 about User Accounts in ASP Web

ASP网站用户帐号的MD5加密技术

Study of MD5 Algorithm in the System of Colleges and Universities'Media Asset Management

MD5算法在高校媒体资产管理系统中的应用研究

Research on the Analysis of the MD5 Resistibility

关于MD5强度分析的研究

Design and Implementation of MD5 Algorithm Based on JAVA Technology

基于JAVA技术的MD5加密算法的设计与实现

Application of MD5 in Agricultural Data Cleaning

MD5算法在农业数据消重中的应用

Design and Implementation of Digital Signature System Based On MD5 And RSA

基于MD5和RSA的数字签名系统的设计与实现