des的变形算法，很有用的

IDEA加密算法的实现-IDEA Encryption Algorithm Implementation

des和rsa加密算法程序-des and rsa encryption algorithm procedures

密码算法中的单向散列函数之SHA算法的C代码-password algorithm for one-way hash algorithm SHA Function of C code

用ansi C编写的DES加密实现，适合数字密码的加密。-prepared using the DES encryption and password for the encryption.

I think this the first time every one can look at a PE crypter source in top level language such VC++. So as I promised ... if some one sent me one nice compress source I would publish my source. I dedicate this source to all people who involve in this field. I hope it helps someone. Have good days ashkbiz Check: yodap.cjb.net

基于LSB的信息隐藏技术――MFC――编译已经通过运行正常-LSB-based Information Hiding- MFC- has been compiled by running the normal

密码学文献有一个奇妙的发展历程，当然，密而不宣总是扮演主要角色。第一次世界大战前，重要的密码学进展很少出现在公开文献中，但该领域却和其它专业学科一样向前发展。-cryptography literature has a wonderful history, of course, close does not declare always played the leading role. Before the First World War, it was important to cryptography little progress emerged in the open literature. However, the area has other professional disciplines and the development of the same.

AES算法主要包括三个方面：轮变化、轮数和密钥扩展。本文以128为例，介绍算法的基本原理；结合C语言，实现高级数据加密算法AES（AES-128）。-AES algorithm mainly includes three aspects: round of changes, round number and key expansion. In this paper, 128 for example, introduce the basic principles of algorithm combination of C language, the realization of advanced data encryption algorithm AES (AES-128).

A simple cpp program, that receives a file, does a bit-wise "not" for every character, and adds "not" to the extension. Repeated running does the same and removes the "not" from extension. This a "pseudo-encryption", but very useful to avoid automated filtering software. This way it is possible to send "exe" files (or anything else) without the emails being blocked... First - send the source code, have your (enlightened) recipient compile it, then send the "notted" file. The code is not very efficient though, I only had 30 minutes to invest... :)-A simple cpp program, that receives a file, does a bit-wise "not" for every character, and adds "not" to the extension. Repeated running does the same and removes the "not" from extension. This is a "pseudo-encryption", but very useful to avoid automated filtering software. This way it is possible to send "exe" files (or anything else) without the emails being blocked... First - send the source code, have your (enlightened) recipient co