Research on Secure Data Exchange Technology between Heterogeneous Databases

With the rapid development of information technologies and widespread application of E-business/E-government, secure data exchange between heterogeneous databases becomes more and more frequent and important. A secure solution of data exchange based on XML, XML encryption and digital signature technologies has been proposed. Transparent access between heterogeneous databases has been achieved by model mapping based on table between XML documents and database schemas. The security and no-denying of important data has been enforced using encryption and digital signature technologies.