用JAVA语言实现3DES算法。通过文件读取进行加密，密码由客户自行输入,JAVA language used DES algorithm. Read through the document is encrypted, the password input by the customer on its own

用JAVA语言实现DES算法。通过文件读取进行加密，密码由客户自行输入-JAVA language used DES algorithm. Read through the document is encrypted, the password input by the customer on its own

用JAVA语言实现MD5算法。通过文件读取进行加密，密码由客户自行输入-JAVA language using MD5 algorithm. Read through the document is encrypted, the password input by the customer on its own