Abstract:

The security and query effectiveness must be considered in the extensible markup language (XML) encryption. To address these problems, an approach based on curve interpolation is presented. Firstly, more flexible encryption granularity can be obtained through a XML nodehide mechanism; secondly, more efficiency to resist various kinds of database attack due to the changing of ciphertext distribution and data size. A XMLQuery (XQuery) is established. The proposed model offers greater security, and the ciphertext query performance can amount to 65% of the plaintext query based on the result of experimental simulation.

Key words: curve interpolation, extensible markup language database, ciphertext query, encryption granularity