基于完整性的文件保护

Integrity-Based File Protection

分析了病毒对文件完整性的破坏，对此提出了使用公钥密码体制进行数字签名来保护文件完整性的方法。对这种保护机制进行了详细的讨论。用这种方法不仅能够抵御病毒对文件的破坏，而且能够抵御其它各种因素对文件的破坏。所给出的方法为遏制计算机病毒提供了一种手段。

The destruction of the integrity of executable files by virus is discussed and the conceptof integrity information of executable files is proposed.A method of protecting the integrityusing the public-key cryptosystem with digital signature for the integrity information is sug-gested.A system called Executable Integrity Protecting system(EIPS)consisting of digitalsignature,file integrity detection,file recovery and self-protection has been designed.Thefunction of each part and the data flowchart of the system are given.