Implicit Security Services

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Questions and Answers

What is a characteristic of Primary Security Services?

They have a secondary deployment such as in layer 7 of the OSI stack

They operate between elements in a domain

They are wholly embedded within a domain element (correct)

They secure the communications between the elements

What is the purpose of Secondary Security Services?

To provide security functionality to a single element

To operate within a single layer of the OSI stack

To operate across multiple domains

To secure the communications between elements in a domain (correct)

What is an example of Primary Security Services?

A service that secures communication between two elements

A service that operates across multiple domains

A service that provides confidentiality to an application element (correct)

A service that has a secondary deployment in layer 3 of the OSI stack

What is a key difference between Primary and Secondary Security Services?

Primary services operate within an element, while secondary services operate between elements Signup and view all the answers

What is the scope of Primary Security Services?

Within a single element Signup and view all the answers

What is the deployment characteristic of Secondary Security Services?

Has a secondary deployment such as in layer 7 of the OSI stack Signup and view all the answers

What is an example of the functionality provided by Primary Security Services?

Confidentiality Signup and view all the answers

What is the primary focus of Secondary Security Services?

Securing the communication between elements Signup and view all the answers

What is implied by an authorisation service?

An authentication service, mechanisms, components, and activities Signup and view all the answers

What is the primary purpose of user authentication for external connections?

To control access by remote users and associate domains Signup and view all the answers

At how many different domain levels should appropriate authentication methods be implemented?

At least three different domain levels Signup and view all the answers

What is necessary for inter-domain security?

A means of associating the domains together Signup and view all the answers

Which of the following is a component of an authorisation service?

Mechanisms, components, and activities Signup and view all the answers

What is the purpose of authentication mechanisms in an authorisation service?

To authenticate users and authorise access Signup and view all the answers

What is the primary characteristic of implicit security services?

They secure the domain from within Signup and view all the answers

What is an example of an explicit security service?

Requesting service from common services domain through an API Signup and view all the answers

What is the role of application adaptors in the context of an enterprise common security API?

To convert the calls from 3rd party applications into those of the ECSS Signup and view all the answers

What is the difference between primary and secondary services in the context of implicit security services?

Both primary and secondary services are implicit Signup and view all the answers

How do explicit security services interact with other domains?

They are explicitly requested from one domain to another Signup and view all the answers

What is the purpose of an enterprise common security API?

To enable cross-domain security services Signup and view all the answers

What is an example of a domain that may request explicit security services?

Applications domain Signup and view all the answers

How do implicit security services differ from explicit security services?

Implicit services are requested from one domain to another, while explicit services secure the domain from within Signup and view all the answers

What is the benefit of using an enterprise common security API?

It enables cross-domain security services Signup and view all the answers

What is the relationship between domains in the context of explicit security services?

One domain requests service from another domain Signup and view all the answers

Study Notes

Implicit Security Services

Implicit security services secure the domain from within
They are not explicitly requested from one domain to another
Example: Providing 'application security' from within the applications domain

Explicit Security Services

Explicit security services are explicitly requested from one domain to another
They secure one domain by delivering service from another domain
Example: Applications domain requests service from common services domain through an API

Enterprise Common Security API

Application Adaptors are software modules that convert calls from 3rd party applications into those of the ECSS
They enable communication between Enterprise Applications and Third-Party Vendors

Primary Security Services

Primary security services are wholly embedded within a domain element
They provide security functionality that secures the element
Example: A primary service wholly contained within an application element secures the application to specified functionality (such as confidentiality)

Secondary Security Services

Secondary security services operate between elements in a domain
They secure the communications between the elements
Example: A secondary service between elements in an application domain secures the communication between them to specified functionality (such as confidentiality)

Additional Security Concepts

Authentication services are required to control access by remote users and to associate domains together
Appropriate authentication methods should be used to control access by remote users
Authentication mechanisms should be implemented on at least three different domain levels (external users & networks, & internal networks)