Research On Application Of Digital Signature Technology In Secret Classification Mark

Since the new secrecy law enacted in 2010, the informatization work in confidentiality field orderly spreads out. According to the related definition in "The technology requirements of information classification systems involving state secret protection"(BMB17-2006), the requirements of secret classification mark are: inalienable and can not be altered. The management of secret classification mark needs to do the following at least: mark generation, mark extract, secret classification management based on secret classification mark, technology protection system based on secret classification mark, secret classification checks based on secret classification mark.With the management of secret classification mark as the background, this paper proposes a set of system which is adapted to the requirements of the secret classification mark management. It is based on PKI digital certificate system as framework, and provides adding, extraction, modification, removal, verification and other services of secret classification identification for secret information management system, so it reduces the burden of the secret classification mark management on the secret information management system.According to the analysis and summary of the existing secret classification mark management system, we know that the digital signature technology for secret classification mark management system can effectively ensure the safety of secret classification mar management. For the secret documents, it proposes that it can use a virtual printer to add secret classification mark automatically and use XML format to store additional attribute information of the secret classification mark, and at last it can implement the extraction, verification,tracking of the secret classification mark. The system also designs a proprietary file format to ensure safe storage and transmission of secret documents and secret classification mark.