实现通信过程中的数据加密（AES, DES, SHA

这是用java实现单向加密和非对称加密DSA数字签名的源程序-This source code is an implementation of one-way encryption and unbalanced DSA digital signature on java platform.

c语言文件加密程序-file encryption procedures

this code implement an Order Preserving Encryption Scheme (OPES).

用于加密的java源代码，包括加密源代码脚本，加密保护页脚本等等。-for encrypted java source code, including encryption source code scripting, encryption protection and so on the script pages.

Rjindeal加密算法-Rjindeal encryption algorithm

CRC-16算法的C语言实现（以常见的CRC-ITU为例引出的比特型算法）。-CRC-16 algorithm of the C language (in common CRC-ITU as an example of bit-based algorithm for extraction).

快速去除PDF密码设置，不用安装，直接使用-Quick removal of PDF password settings, do not need to install, direct use

一款和不错的用VC实现的DES算法,希望对大家对提意见,-section and a good VC with the DES algorithm, we hope that the right to say,

简单加密工具原程序-simple encryption tools original program

本书真实系统地介绍了密码学及该领域全面的参考文献。 全书共分四个部分，首先定义了密码学的多个术语，介绍了密码学的发展及背景，描述了密码学从简单到复杂的各种协议，详细讨论了密码技术，并在此基础上列举了如DES、IDEA、RSA、DSA等10多个算法以及多个应用实例，并提供了算法的源代代码清单。 全书内容广博权威，具有极大的实用价值。自出版以来，得到业内专家的高度赞誉，是致力于密码学研究的专业及非专业人员一本难得的好书。-This book introduces the real system and the field of cryptography comprehensive references. Book is divided into four parts, first of all define the term more than cryptography, introduced the development of cryptography and background, describes cryptography from the simple to the complex variety of the agreement, a detailed discussion of cryptographic techniques, and on this basis cited, such as DES, IDEA, RSA, DSA algorithm, as well as more than 10 examples of multiple applications and provides the algorithm source code on behalf of the list. Broad authority of the contents of the book, has great practical value. Self-publishing has been highly praised the industry experts, is dedicated to the study of cryptography professional and non-professional a rare book.