DES

BASE64编码的C实现，很精简，可以直接内嵌入工程-BASE64-coded C implementation, it is streamlined and can be directly embedded engineering

信息学竞赛中常用的算法总结: 串匹配的高效算法-KMP 公开密钥体系之RSA算法 双向广度搜索 图论算法 -Informatics algorithms commonly used race Summary: Efficient String Matching Algorithm-KMP system RSA public key algorithm for bi-directional breadth of the search algorithm of graph theory

文件加密压缩解压缩系统-file encryption compression decompression system

the code can be used to encrypt your folder.

CRC校验程序，使用了CRC-16和CRC-CCITT方法 -CRC inspection program, which use crc-16 and crc-ccitt method

字符串加密 -String encrypted string encryption

在WIN-TC下用C写的输入密码的小程序。可用于单片机的登录验证。(in WIN-TC using C code written in the importation of small procedures. SCM can be used to login verification.)

用java实现的sha1加密算法，格式非常规范，标准的一个程序，注释很详细^_^-used to achieve the sha1 encryption algorithm, a very standardized format, a standard procedure, very detailed notes ^ _ ^

编写的DES 对称加解密技术，可随时进行明文密文之间的转换，有需要的朋友可以下载测试！本人目的打算对后台数据库的敏感信息字段用该方法加密，然后用软件权限控制读取，这样即使直接SQL后台取数，也得不到明文数据。(Write DES symmetrical encryption technology, may at any time for conversion between plaintext cipher, friends in need can be download test! I purpose going to the backstage database of sensitive information field with the method of encryption, and then use software to read access control, so even if the SQL backend access directly, also can not get clear data. )

利用polarssl里提取的大数库做的elgamal加密和签名(ElGamal encryption and signature using large library extracted from polarssl)