ITU-T X.800 Security Architecture for OSI:-
The OSI Security Architecture is a framework that provides a systematic way
of defining the requirements for security and characterizing the approaches to satisfying those
requirements. The OSI (Open Systems Interconnection) Security Architecture defines a systematic
approach to providing security at each layer. It defines security services and security mechanisms that
can be used at each of the seven layers of the OSI model to provide security for data transmitted over a
network. These security services and mechanisms help to ensure the confidentiality, integrity, and
availability of the data.
The document defines security attacks, mechanisms, and services, and the relationships among these
Categories.
ITU-T: International Telecommunication Union Telecommunication Standardization Sector
OSI: Open Systems Interconnections
• Security attack:-
Any action that compromises the security of information owned by an organization.
• Security mechanism:-
A process (or a device incorporating such a process) that is designed to detect, prevent, or
recover from a security attack.
• Security service:-
A processing or communication service that enhances the security of the data processing
systems and the information transfers of an organization. The services are intended to counter security
attacks, and they make use of one or more security mechanisms to provide the service.
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