各种加密算法合集，是研究加密算法最好的资料。

ca 配置 iis、ssl等都有，供各位参考-ca configure iis, ssl, etc. are for your reference

vc编写的rsa加密软件，包括源码．有兴趣的同志可以另做界面-vc prepared rsa encryption software, including source code. Comrades who are interested can do the other interface

带密钥的md5算法库md5lib.h共有下列函数： char* MDString (char *) /*输入任意一个字符串，经过md5算法处理后，返回结果：一个定长（32个字符） 字符串 */ char* MDFile (char *) /*输入任意一个文件名，文件内容经过md5算法处理后，返回结果：一个定长 （32个字符）字符串 */ char* hmac_md5(char* text, char* key) /*输入任意一个字符串text,和一个用做密钥的字符串key,经过hmac_md5算法处 理，返回处理结果：一个定长字符串（32个字符）*/ 具体使用方法可参考例子sample.c,其运行结果在本文后面。-Md5 algorithm with a key repository md5lib.h total of the following functions: char* MDString (char*) /* enter any one string, after md5 algorithm processing, return the result: a fixed-length (32 characters) string*/char* MDFile (char*) /* enter any of the file name, file contents through the md5 algorithm processing, return the result: a fixed-length (32 characters) string*/char* hmac_md5 (char* text, char* key) /* input a string of arbitrary text, and a string key used as key, after hmac_md5 algorithm processing, return processing results: a fixed-length string (32 characters)*/specific examples of the use of methods can be found sample.c, the results

实现移位密码（扩展凯撒密码），用键盘接收明文和密钥，屏幕打印密文。-Achieve translocation password (Extension Caesar password), use the keyboard to receive explicit and key, screen printing ciphertext.

一个免费实用的DELPHI AES 加密算法函数包及演示文件,给有需要的朋友-a free practical DELPHI AES encryption algorithm function package and demonstrate the documents to a friend in need

DCPcrypt Cryptographic Component Library

含有rc2、rc4、rc5、rc6算法的rc算法集合- Includes rc2, rc4, rc5, rc6 the algorithm rc algorithm gathers

Java 16位MD5 Hash code generator-Java 16 md5 generator

Des加密的实现-Des achieve encryption

crc 详尽的源码 值得参考 具体要求可根据自己需要设置-CRC detailed reference source should be specific requirements may need to set up according to their own