Maede Ashoori - Computer Engineering Department, The University of Isfahan, HezarJerib.st, Isfahan, Iran
Ahmad Baraani - Computer Engineering Department, The University of Isfahan, HezarJerib.st, Isfahan, Iran,
Naser Movahedinia - Computer Engineering Department, The University of Isfahan, HezarJerib.st, Isfahan, Iran,

Mobile database system is an emerging research area which has recently attained considerable concerns. The idea of accessing data any where and any time, poses new security problems in mobile environments. One of these security issues is maintaining the mobile user location privacy. The objective is to prohibit deducing user location and movement through eavesdropping or accessing metadata which is stored in database tables.This paper presents a new method to protect user location privacy for mobile database based on blind signature. In addition, the proposed technique preserves confidentiality of the database content.

Mobile Database, Mobile Database Security, Location Privacy, Blind Signature, Public key Encryption