A Method of Transparently Encrypting Database Data Supporting Cipher-text Index

TLDR: This paper proposes a new method of transparently encryption of records, which supports conditional query on encrypted database data, and experimental results of a database-encryption system designed based on this method are reported.

Abstract: As the database is applied widely,a critical challenge is to preserve data privacy and prevent sensitive information from disclosure.The database encryption technology has been proven an effective method to preserve data security.However,as the original partially ordered relationship of database data would be lost while the database is encrypted,it is impossible to quicken the conditional query on the cipher-text data.This paper proposes a new method of transparently encryption of records,which supports conditional query on encrypted database data.Experimental results of a database-encryption system designed based on this method are reported.