Introduction - If you have any usage issues, please Google them yourself
the confidentiality of computer information are becoming increasingly important. Transform data confidentiality, or password technology, the computer information for the protection of the most practical and most reliable method. This stage of computer hard disks and other large-capacity storage medium instead of paper as the main information storage, the attendant's information security issues have become increasingly prominent, electronic document information security has become a critical issue. Electronic document security problem occurred in the two occasions : Transmission dynamics of the way, the storage form of static. for electronic document transmission security, through data encryption technology first re-transmission encryption to ensure the legality of electronic documents