What is the role of middleware in a distributed system?
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The paper describes the concept of the security architecture for open distributed systems, which may be used for distributed applications which support a variety of security policies. The components of an open distributed system can be grouped into domains corresponding to organizations, networks or services etc. for the purposes of applying security policy. The paper proposes a design for a security system which is based on use of Kerberos in each domain. Kerberos is extended with several additional security functions: extended access control lists, delegation properties and smart cards. In addition, data confidentiality and data integrity of distributed system resources are provided by configurable cryptographic modules..
The paper describes the concept of the security architecture for open distributed systems, which may be used for distributed applications which support a variety of security policies. The components of an open distributed system can be grouped into domains corresponding to organizations, networks or services etc. for the purposes of applying security policy. The paper proposes a design for a security system which is based on use of Kerberos in each domain. Kerberos is extended with several additional security functions: extended access control lists, delegation properties and smart cards. In addition, data confidentiality and data integrity of distributed system resources are provided by configurable cryptographic modules..
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