JPEG2000 image format for the use of the Arnold transform the image of the wavel...

应用背景在这篇文章中，我将介绍一个简单的源代码，让您的数字签名PDF文档和修改它的元数据。我会用优秀的 自由港；iText  ；图书馆：itextsharp，可以下载 ；这里。你需要2008个视觉工作室能够打开和建设该项目。关键技术itextsharp提供了很多有趣的功能，创建和操纵PDF文件，但在这篇文章中，我们将只使用数字签名功能。我也会用一些功能来操作# PKCS 12证书。你唯一需要知道的是，我们的数字签名将使用从蛋白提取私钥# 12证书。

基于VC++6.0的DES加密算法 .-VC++6.0 based on the DES encryption algorithm .

用Visual c++实现数字图像迭代混沌加密-Using Visual c++ Realize digital image iterative chaotic encryption

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.

一个SHA加密库文件，用汇编语言开发完成的-a SHA encryption for document assembly language development completed

Documents and SettingsAdministrator桌面MD5.rar-Documents and Settings Administrator Desktop MD5.rar

MD5算法的详细介绍，很容易理解，给人豁然开朗的感觉-MD5 algorithm is a detailed description, it is easy to understand, gives a clear insight into feelings

用从c/c++实现RSA加密算法的一个实验小程序-From c/c++ Realize RSA encryption algorithm, a small experimental procedures

CRC算法与C语言

一个非常好用而且实用的非对称加密算法，里面有实例，完整的源码。-a very handy and practical non-symmetric encryption algorithm, there are examples, complete source code.