computer science

Trusted Network Connect

Trusted Network Connect is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Trusted Network Connect rather than just read about it. In short: Trusted Network Connect (TNC) is an open architecture for network access control, promulgated by the Trusted Network Connect Work Group (TNC-WG) of the Trusted Computing Group (TCG). History The TNC architecture was first introduced at the RSA Conference in 2005.

Key takeaways

Trusted Network Connect belongs to computer science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Trusted Network Connect to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Trusted Network Connect from memory before moving on to harder problems.

Reference excerpt

Trusted Network Connect (TNC) is an open architecture for network access control, promulgated by the Trusted Network Connect Work Group (TNC-WG) of the Trusted Computing Group (TCG).

History The TNC architecture was first introduced at the RSA Conference in 2005. TNC was originally a network access control standard with a goal of multi-vendor endpoint policy enforcement. In 2009 TCG announced expanded specifications which extended the specifications to systems outside of the enterprise network. Additional uses for TNC which have been reported include Industrial Control System (ICS), SCADA security, and physical security.

Specifications Specifications introduced by the TNC Work Group:

TNC Architecture for Interoperability IF-IMC - Integrity Measurement Collector Interface IF-IMV - Integrity Measurement Verifier Interface IF-TNCCS - Trusted Network Connect Client-Server Interface IF-M - Vendor-Specific IMC/IMV Messages Interface IF-T - Network Authorization Transport Interface IF-PEP - Policy Enforcement Point Interface IF-MAP - Metadata Access Point Interface CESP - Clientless Endpoint Support Profile Federated TNC

Adoption A partial list of vendors who have adopted TNC Standards:

Also, networking by

Cisco HP Symantec Trapeze Networks Tofino

TNC Customer Adoption The U.S. Army has planned to use this technology to enhance the security of its computer networks. The South Carolina Department of Probation, Parole, and Pardon Services has tested a TNC-SCAP integration combination in a pilot program.

See also IF-MAP Trusted Computing Trusted Computing Group Trusted Internet Connection

References

Sources Dornan, Andy. “'Trusted Network Connect' Puts Hardware Security Agent In Every PC”, “Information Week Magazine”, UBM Techweb Publishing. Vijayan, Jaikumar. “Vendor Group Adds Net Access Specs”, “Computer World Magazine”, IDG Publishing. Higgins, Kelly Jackson. “Trusted Computing Group Widens Security Specs Beyond Enterprise Networks”, “Dark Reading”, UBM Techweb Publishing. Townsend, Mark. “Naked endpoints on your net, and what to do about them”, “SC Magazine”, Haymarket Media. Fang, Juan and Zeng, Hongli. “The Model of Trusted Network Connect Based on Credibility of the Hierarchy”, nswctc, vol. 2, pp. 454–457, 2010 Second International Conference on Networks Security, Wireless Communications and Trusted Computing, 2010. Howard, Scott (2010-06)(“Securing SCADA and Control Networks”, “Ürün Koruma”. Mağaza Güvenlik. [2], “Mağaza Güvenlik”. Mağaza Alarm Sistemleri. [3], “Mağaza Alarm Sistemleri”.

Worked examples

Example 1 — a first encounter with Trusted Network Connect

Start with the simplest possible case. Write down what Trusted Network Connect claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Trusted Network Connect before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Trusted Network Connect ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Trusted Network Connect

In research: Trusted Network Connect appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Trusted Network Connect in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Trusted Network Connect is common in secondary-school and first-year university syllabi. It links to neighbouring topics Computer network security, Trusted computing, so understanding it makes those chapters shorter.
In everyday life: Look for Trusted Network Connect outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Trusted Network Connect in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Trusted Network Connect means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Trusted Network Connect out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Trusted Network Connect in simple terms?

Trusted Network Connect (TNC) is an open architecture for network access control, promulgated by the Trusted Network Connect Work Group (TNC-WG) of the Trusted Computing Group (TCG). History The TNC architecture was first introduced at the RSA Conference in 2005.

Why does Trusted Network Connect matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Trusted Network Connect?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Trusted Network Connect.