computer science

OneID

OneID 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 OneID rather than just read about it. In short: OneID was a digital security service based in Redwood City, California. OneID sold a digital identity system that claimed to provide security across all devices using public-key cryptography instead of passwords.

Key takeaways

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

Reference excerpt

OneID was a digital security service based in Redwood City, California. OneID sold a digital identity system that claimed to provide security across all devices using public-key cryptography instead of passwords. The technology is utilized by non-profits, such as Salsa Labs, to increase the frequency and security of online donations. OneID now operates as a subsidiary program of Neustar following its acquisition in 2016.

History The company was founded in 2011 by serial entrepreneur, Steve Kirsch. Kirsch recruited engineers Jim Fenton, Adam Back, and Bobby Beckmann to create the flagship product, which was launched in early 2012. Following the launch, the company raised US$7 million in venture capital financing from Menlo Park-based venture capital firm Khosla Ventures. Following a growth period in late 2013, the company appointed Kirsch CEO. In August 2016, OneID was acquired by Neustar. Neustar was later acquired in 2021 by TransUnion.

Worked examples

Example 1 — a first encounter with OneID

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

In research: OneID 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 OneID 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: OneID is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2011 establishments in California, 2016 mergers and acquisitions, American companies established in 2011, so understanding it makes those chapters shorter.
In everyday life: Look for OneID 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 OneID in 20 minutes

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

Frequently asked questions

What is OneID in simple terms?

Why does OneID 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 OneID?

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 OneID.