Base64的Decode和Encode

UPX1.9源代码(一个加壳工具)-UPX1.9 source code (a shell tools )

个人觉得很不错的简单代码，用很少的程序实现，非常值得一看-in my view, it s a nice and simple code with a few program to achieve the aim. worth to take a look

这两个工程主要用CSP 1、CSPTEST 写的比较乱 主要是给当时一个朋友做参考调用的 完成非对称密钥的生成、导入、导出、加密、解密、对称的加密解密、签名、验证。 2、CSTTEST2 写的比前个好些，但是平时上班，下班自己也要写论文，所以花的时间也不太多，很多地方都偷懒了。比如文件大小我没有用NEW 而且指定了1024 有需要的朋友可以自己修改。这个工程主要是非对称的密钥的导出和导入，还有就是会话密钥的操作。-these two works mainly with a CSP. CSPTEST comparison was made mainly to the chaos when a friend called to refer to the completion of the non-symmetric key generation, importing and exporting, encryption, decryption, symmetric encryption and decryption, signature, the certification. 2, CSTTEST2 write better than in the previous months, but usually go to work and finish their own toilet paper so I spent the time is not too much, all of the lazy. For instance, file size I have not used the NEW 1024 and designated a need to amend their friends. The project mainly non-symmetric keys to the Export and Import, there is the session key operation.

加密算法之一加密算法a-encryption algorithm encryption algorithm a

SDES 的加密-SDES encryption

一本介绍密码学现代知识的学习资料，对于密码算法编程方面很有用。-A description of the study of modern knowledge of cryptography information programming for the cryptographic algorithm is useful.

TRegware时间炸弹，可以根据自己需要调整。(有源代码）工作在：D5 D6。作者：Winston Kotzan。-TRegware time bombs, can be adjusted according to their own. (Source code) work: D5 D6. Author: Winston Kotzan.

RSA加密算法在VB中的实现.可以更好的了解RSA加密算法.-RSA encryption algorithm in VB realized. To better understand the RSA encryption algorithm.

文件加密用的C++源代码-file encryption using the C source code

What Does the code DO? Sometimes we may desire to hide our file contents from others.One of the possible way is encrypting these files.Here a simple encryption technique is used(In VB - The same technique can be implemented in "c" also.) Program flow Explained * Open the File to be encrypted for Binary Access Read(Say Source File) * Open a temparory file where encrypted data is stored for Binary Access Write(Say Destination File) * Loop through the Source File Byte by Byte * For each byte read from the file, Complement the data. (Using Not operator (in C we have to use "~" operator) * Write Complemented Data to Destination File * Delete the Source File * Rename Destination file as Source File(Now Encryption is over) -What Does the code DO? Sometimes we may desire to hide our file contents from others.One of the possible way is encrypting these files.Here a simple encryption technique is used (In VB- The same technique can be implemented in