db22excel

解zip(V1.1)文件密码的程序源码- Solves zip (V1.1) the document password procedure source code

加密与解码――密码技术剖析与实战应用中的一个例子-encryption and decryption-- Password Technology Analysis and real application of an example

TableCrypt is a file encryption utility. The major difference with most file encryptors is that this program uses a generated table in combination with a password to encrypt a file. This way you need 2 variables to decrypt the file. This is how it works: Generate a 10kb table file and enter a password. The password is used to pick bytes from the table file which in their turn are used to encrypt the bytes of the inputfile with XOR encryption.

vb写的DES源码，复制到Visual Basic 6.0 中即可使用。-vb source code written by DES, copy to the Visual Basic 6.0, can be used.

差分密码分析，此实验是对S-P密码体制的差分分析-differential cryptanalysis, the experiment of S-P Cryptosystem Differential Analysis

S-DES编程S-DES加密采用8和10明文作为密钥输入，有8个密文作为输出。使用同一密钥进行加密和解密。要求：CBC模式到解密版本增加。对话界面：在目录选项中选择加密或解密密钥输入明文或密文文档（对于二进制内容，。Txt文件，），建议加密或解密已完成2。输出：产生密文或明文文本3。提供：文档、源代码、可执行文件，通过加密实验得到运行结果。4分析雪崩效应文件：键下同一个显式改变文本在闭合处的差异，在同一个地方显式改变电位器在密文处的情况

说明：  DNA编码、DNA解码、取补、相关性分析程序是实现基于DNA编码的图像加密算法的核心程序(Encryption Algorithm for dna coding)

--- -----属于加密算法里的一种，可以看西------------ Belong in an encryption algorithm, you can see the West------

idea加密算法源代码-The source code of IDEA encryption algorithm

DES(Data Encrypton Standard) 算法的实现网上已经有很多，本人在此讲述的是在DES算法加密过程中如何查看16迭代过程中生成的Ki,Li,Ri,Fi,Si等，这样可以当做一个DES加密对照器，这样可以方便的发现你在加密过程中出现的错误! -DES (Data Encrypton Standard) algorithm has been achieved online many, I would like to speak on is the DES encryption algorithm to see how the process 16 iterative process of generating Ki, Li, Ri, Fi, Si, etc., can serve as a control device DES encryption, this can easily find you in the process of encryption the mistakes!