computer science

OpenXPKI

OpenXPKI 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 OpenXPKI rather than just read about it. In short: The OpenXPKI project stewards an open-source Public Key Infrastructure (PKI) software. History The OpenXPKI project commenced c. 2005 and began to produce usable software from c. 2010 but choose to take a precautionary approach with the first production level release in 2015.

Key takeaways

OpenXPKI 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 OpenXPKI to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of OpenXPKI from memory before moving on to harder problems.

Reference excerpt

The OpenXPKI project stewards an open-source Public Key Infrastructure (PKI) software.

History The OpenXPKI project commenced c. 2005 and began to produce usable software from c. 2010 but choose to take a precautionary approach with the first production level release in 2015. The approach taken was to create a modular system with most modules capable of being re-utilised in other systems - a Workflow engine centered approach. The software has been mostly written in Perl and designed to run on Unix-like operating systems such as FreeBSD and Linux. Database backends have been created for MySQL, PostgreSQL, the Oracle Database and IBM Db2.

Technical After installation the software on the node is configured to act as a Certificate Authority (CA), Registration Authority (RA) or End-Entity Enrollment (EE) node. One client implementation is a web frontend that allows end-users to access the OpenXPKI system using a web browser, and a command line interface also available for system administrators. OpenXKPI also has a SCEP interface available.

Reception OpenXPKI has been used successfully in scenarios from performance testing up to enterprise level environments. Shortcomings are that it requires additional components to complete a certificate based authentication, including software for efficient certificate distribution.

References

Footnotes

Sources Bartosch, Martin (19 November 2005). "White Paper - Architecture Overview" (PDF). openxpki.org. Archived from the original (PDF) on 28 April 2021. Raphaely, Eytan (25 February 2021). "What is OpenXPKI?". securew2. Retrieved 6 May 2021. Mahnke, Wolfgang; Leitner, Stefan–Helmut; Damm, Matthias (2009). OPC Unified Architecture. Berlin: Springer. doi:10.1007/978-3-540-68899-0. ISBN 978-3-540-68899-0. OCLC 1259125048. Müller, Klaus-Rainer (2011). IT-Sicherheit mit System [Systematic IT security] (in German). Springer. ISBN 978-3-8348-8178-6. OCLC 7326304165. OpenXPKI (2021). "OpenXPKI feature overview". openxpki.org. Archived from the original on 28 April 2021. Retrieved 14 November 2021. Schmeh, Klaus (2016). Kryptografie: Verfahren, Protokolle, Infrastrukturen [Cryptography: procedures, protocols, infrastructures] (in German). Heidelberg dpunkt Verlag. ISBN 9783864903564. OCLC 936174582.

External links The OpenXPKI Project

Illustrations

Worked examples

Example 1 — a first encounter with OpenXPKI

Start with the simplest possible case. Write down what OpenXPKI 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 OpenXPKI 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 OpenXPKI 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 OpenXPKI

In research: OpenXPKI 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 OpenXPKI 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: OpenXPKI is common in secondary-school and first-year university syllabi. It links to neighbouring topics Cryptographic software, so understanding it makes those chapters shorter.
In everyday life: Look for OpenXPKI 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 OpenXPKI in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what OpenXPKI 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 OpenXPKI out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is OpenXPKI in simple terms?

The OpenXPKI project stewards an open-source Public Key Infrastructure (PKI) software. History The OpenXPKI project commenced c. 2005 and began to produce usable software from c. 2010 but choose to take a precautionary approach with the first production level release in 2015.

Why does OpenXPKI 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 OpenXPKI?

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 OpenXPKI.