Recommendation X.800 and ISO 7498-2 (Information processing systems – Open systems interconnection – Basic Reference
Model – Part 2: Security architecture) are technically aligned.
2 Recommendation X.800
OSI security functions are concerned only with those visible aspects of a communications path which permit
end systems to achieve the secure transfer of information between them. OSI security is not concerned with security
measures needed in end systems, installations, and organizations, except where these have implications on the choice
and position of security services visible in OSI. These latter aspects of security may be standardized but not within the
scope of OSI Recommendations.
This Recommendation adds to the concepts and principles defined in Recommendation X.200; it does not
modify them. It is not an implementation specification, nor is it a basis for appraising the conformance of actual
implementations.