大数运算库miracl。有了miracl这样的函数库，你可以直接调用函数，来实现你要的公钥密码学的某个功能。...

An ethernet bridge / VPN program for windows-An ethernet bridge/VPN program for windows

98快速的全盘文件查找程序-98 fast overall document search procedures

古典密码算法中的单表代换密码算法、移位密码算法、Vigenere密码算法。算法比较简单，用命令的方式。可以随机生成明文和密钥。-Classical cryptographic algorithm in a single table substitution cipher, transposition cipher, Vigenere cipher. Algorithm is relatively simple, way to use the command. Can be randomly generated and the key explicitly.

Base64 加密算法（Author 蒋柏良 Jerry Jiang)-* * DESCRIPTION * Base64 processes input in 24bit chunks by converting each chunk into 4 * bytes of output. It does so by splitting input into four 6bit groups and * using these as indexes in the following substitution table- * const char base64_map[] = * "ABCDEFGHIJKLMNOPQRSTUVWXYZ" * "abcdefghijklmnopqrstuvwxyz" * "0123456789+/" * If an input is not a multiple of 3 bytes, it s padded with zeros. In * this case the output bytes that consist entirely of the pad data are * replaced with = . * * Example * An input of 0x00 0x45 0xF2 is equivalent to 00000000 01000101 11110010 * bit sequence, which s then split into 000000 000100 010111 110010 * and these are substituted to produce the following base64 encoding * A E X y * * RETURN VALUE * b64_length() should return output length for the input of len bytes. * b64_encode() should encode len bytes from src int

RSA的类的源代码，Visual C++ 6.0实现。该算法（不是指代码）虽然有诸多缺点，但目前应用广泛。该代码的思路清晰，容易学习掌握。-RSA class

BlowFish算法的压缩源码-BlowFish compression algorithm source code

des，c环境下的，希望站长早日通过，贵站的宝贵资料对于我的学习有很大的帮助，感谢！-des, under the c environment, hoped stationmaster soon will pass, the expensive station precious material will have the very big help regarding mine study, the thanks!

各种反分析软件的手法,包括(反Dede,反单步跟踪,反SoftICE,Ollydbg,反静态分析,以及程序自身的CRC32效验等,对于初学者有很大的帮助.-Analysis of various anti-software approach, including the (Anti-Dede, anti-single-step tracking, anti-SoftICE, Ollydbg, anti-static analysis, as well as procedures for their own well-tested, such as CRC32, for beginners and has a great help.

MD5加密,针对于一般的开发程序来使用,下载后可直接运行.-MD5 encryption, the response to the general development of procedures to use, can be downloaded directly operation.

视觉密码的想法是一个迷人的发明由摩尼 Naor 和阿迪沙米尔 (1994 年)。在最简单的形式，它实现了牢不可破的 （在信息理论的感觉） 加密系统，而是类似于一次性垫，额外的转折，解密不需要任何计算设备。詹姆斯 · 邦德运载一个特别"键"，其实是一种透明度以多个随机点上 ；当 M 传真债券秘密消息，它太组成的多个随机点债券只在密文的地方他的透明度并读取出明文 ！天才在这里的脑卒中是一项技术，解释了海报，通过视觉开展的"异或"的布尔操作中"。我决定实施该系统后看到示范在一次辉煌的阿迪沙米尔本人谈话。http://www.cl.cam.ac.uk/~fms27/vck/