Secure Embedded Database Management System

Toshiba has developed a secure embedded database management system (DBMS) by enhancing an open source DBMS with user authentication and data encryption functionalities. The DBMS has been introduced into a social infrastructure system. A transparent data encryption (TDE) method was incorporated into the DBMS, so that a user application can read/write data along with decryption/encryption. Therefore, there is no need to change the structure of a user application program.

The TDE method makes it possible to skip the decryption step after loading the data into memory space, and inhibits the negative effect on performance to a maximum of 8% performance degradation. The encryption module is separated from the main DBMS module, allowing an encryption library to be easily replaced.

Structure of secure embedded database components

Transparent data encryption method