The Key Management of the Encrypted Database Based on XML

Encryption is an effective way to enhance the security of the database. The key management is the important factor to ensure the security of the encrypted database. But the current scheme of the key management has some security problem and is easily attacked. Face to this problem, the new scheme about key management base on XML is proposed in this paper. A XML file that has the tree structure is used to mange the working key that is protected by the primary key. Lt can not only manage the working key efficiently, but also enhance the security of the encrypted database.