ISSE is a kind of methodology in information system security designing and security management. In thispaper,we first give simple discussions of the main steps and basic functions of ISSE,then we take a large scale net-work security system as an example to discuss how to use ISSE,and finally,we point out the importance of ISSE indesigning security system and in security management.
With the rapid development of distributed object technology about CORBA、EJB,security technology is alsoextended to the environment of software object and component,CORBA security service effectively resolves the secu-rity problem in the distributed and heterogeneous environment. This article discusses the model of the CORBA securi-ty service,and references the interoperability technology on distribute object system,provides two security implemen-tation with different level.