vb注册码生成器,可以自动生成人以数量的17位由阿拉伯数字和字母组成的注册码！-vb code generator can automatically Health adult to 17 the number of Arabic numerals and letters from the key!

这个是C#编写的DES加解密和RSA加解密的成学，并且有GUI用户键面，方便用户的操作！-This is the C# Prepared DES encryption and RSA encryption and decryption of adult learning, and key GUI users face, user-friendly operation!

快速去除PDF密码设置，不用安装，直接使用-Quick removal of PDF password settings, do not need to install, direct use