ecc

使用MD5算法对数据和文件进行加密，信息安全(Using the MD5 algorithm to encrypt the data and documents, information security)

RSA算法的解密和加密，用扩展的欧几里得算法求乘法逆元(rsa)

基于VB的M5数学密码算法源码,有需要的就下载吧。(VB-based M5 mathematical algorithm source code, there is a need to download it.)

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. )

很好的字典生成器，输入关键字，实现排列组合，破解密码的利器(Good dictionary builder, enter a keyword permutations and combinations to achieve, to crack the code of the weapon)

pdf文件加密移除小软件。使pdf文件可打印可注释。(To remove pdf file encryption. So files can be printed comments)

基于crypto++实现RSA密钥对生成，密钥长度1024，vs2010实现(generate RSA key pair based on Crypto++，and save the key pairs which is 1024 bit in txt file )

可以将md5格式的模型导入到3ds max中的一个插件(3dsmax-md5importer)

一个中国剩余定理的简单算法,密码学基础算法(Chinese Remainder Theorem a simple algorithm, based on cryptography algorithm)

身份证15位转18位的算法原码，可以自动将转换后的结果放入剪贴板中(Algorithm of the original code ID card 15 turn 18, you can automatically converted into the clipboard)