Research In Security Of The Real-Time Database

The decisive performance of real-time database systems is maximized the number of the transactions that complete before their deadlines, then management and transaction processing for real-time systems are essential in supporting time-critical applications .However, as real-time systems continue to evolve, security and temporal consistency become another problem must be considered in many real-time application. Traditional multi-level secure database implemented madatory access mechanism is not enough for prior-time applications . Traditional Real-Time database do not provide support for secure commitment. Using intrusion detection to find abnormal transaction is common usage nowadays. But the resulting damage by a data item is modified by an attacker such that the modified value satisfies database constraints can spread to other parts of the database through other valid users, users itself cannot identify the malicious activities and respond accordingly. So, is is necessary to present a new approach to guarantee timeliness and security constraint simultaneously, while transactions can be process in its time-constraint using temporal consistency-data.The paper first discuss secure control factor on access restrictness model based Bell_LaPadula, anylasis secure concurrency algorithm, address issues that real-time systems designer should consider for supporting both requirements of timeliness and security, also describe a specification language that allow the designer to specify important property of the database at an appropriate level to support partial security and demonstrate an adaptive policy to achieve it.It,...