An important new technology has recently been developed that will revolutionize trust and security for online transactions. Conventionally, most of the security-relevant functions are concentrated within the operating system. Often, these functions, especially those dealing with access control, are commingled with object management functions. This article, abstracted from a new book on the subject, explains the key concepts and the exciting potential of Trusted Computing Platforms (often abbreviated to Trusted Platforms). We discuss access control in multilevel database management systems applies and illustrate the main applies of access control based on Trusted Computing in the LogicSQL database system.

LogicSQL is an object relational database management system implemented with the advanced (formula-lock based) concurrency control protocol, and the steged database architecture. It is independently developed based on the Linux high-level security database system. Ministry of Science and Technology "863" Database Group of the major projects comments LogicSQL database "It is the only hope that China’s database products will be able to contend with America’s mainstream database products in the next few years." Access control policies are security policies that govern access to resources. It can be applied to several new types of databases. In this paper, we discuss access control in multilevel database management systems applies and illustrate the main applies of security mechanisms in the LogicSQL database system.

Cloud computing represents one of the most significant shifts in information technology many of us are likely to see in our lifetimes. It offers an innovative business model for organizations to adopt IT services without upfront investment. Cloud computing moves the application software and databases to large data centers, where the management of the data and services may not be fully trustworthy. Security is one of the major issues which hamper the growth of cloud. The security for cloud computing is emerging area for study and this paper provide technical components of cloud computing and security idea in terms of cloud computing based on analysis of cloud security treats.

With the help of enterprise information technology wave, a lot of internal information resources have come out. Enterprise search achieves more accurate positioning information, and it realizes the value from the information across to the knowledge. This paper discussed the enterprise search systems based on database security services. Such as Oracle Ultra Search, Sybase Enterprise Portal and LogicSQL-based enterprise archive and search system. The enterprise information resources integration and security search are completed in the search system.

Access control is the process of mediating every request to data and services maintained by a system and determining whether the request should be granted or denied. Access control policies are security policies that govern access to resources. It can be applied to several new types of databases. LogicSQL is an object relational database management system implemented with the advanced (formula-lock based) concurrency control protocol, and the steged database architecture. In this paper, we discuss access control in multilevel database management systems applies and illustrate the main applies of access control in the LogicSQL database system.