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本代码按照DOD5220.22M标准来擦掉需要删除的机密数据，即首先将要删除的文件内容全部写为 0 ，再被写为 1 ，如此重复3次，接着被写上一个随机值；再加上一个DOD标准中未说明的步骤，即在删除文件之前，先将文件长度置为0，这使恢复机密文件的希望更为渺茫。 ...

一款不错的文件删除工具，支持彼得加特曼方法和美国国防部DoD 5220.22-M方法

Radio frequency identifi cation (RFID) technology is a wireless communication technology that enables users to uniquely identify tagged objects or people. RFID is rapidly becoming a cost-effective technology. This is in large part due to the efforts of Wal-Mart and the Department of Defense (DoD) to ...

RFID Applied is just that. It’s about the application of RFID. If you want a book about electrical and computer engineering you need another source. Let’s say that you have been asked to lead an effort at your company to use RFID in your supply chain. You have heard about RFID because so much has ...