Research on File Content Tamper-proofing System for Distribution Environment

It is very important to protect the data security in distributed Web applications. In this paper, a file content tamper-proofing system is proposed, which can effectively resist file content tampering, and prevents illegal information spreading. To meet the requirement of authentication speed, a fast authentication algorithm combines file length verification and HMAC is used in the file content tamper-proofing system, which improves the computing speed while keeping the systempsilas security. Then the implementation plan of the file content tamper-proofing system is proposed.