哈夫曼编码/译码器，可以对文字进行编码和译码，对文件进行加密和解密
Huffman encoding/decoding, and can encode and decode text on the document for encryption and decryption (2016-02-18, DOS, 2KB, 下载3次)
字符串长度计算器，适合加密 逆向等工程使用。
zifu jisuan (2011-08-23, DOS, 1KB, 下载2次)
密码破解器，是多用途的密码破解软件，配合万能密码生成字典用效果更佳
Password cracking, and is a multi-purpose password cracking software, with the universal password dictionary used to generate better (2009-04-20, DOS, 2824KB, 下载25次)
dos下直接对软盘控制器操作的C++类, 用它可以制作，破解软盘的密钥盘
dos directly to the floppy disk controller to operate the C category, and it can be produced, resolving the key floppy disk (2005-07-14, DOS, 6KB, 下载111次)