astronomy

Paulo S. L. M. Barreto

Paulo S. L. M. Barreto is a astronomy 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 Paulo S. L. M. Barreto rather than just read about it. In short: Paulo Licciardi Barreto (born Paulo Sérgio Licciardi Messeder Barreto on November 19, 1965) is a Brazilian-American cryptographer and one of the designers of the Whirlpool hash function and the block ciphers Anubis and KHAZAD, together with Vincent Rijmen. He has also co-authored a number of research works on elliptic curve cryptography and pairing-based cryptography, including the eta pairing technique, identity-ba…

Key takeaways

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

Reference excerpt

Paulo Licciardi Barreto (born Paulo Sérgio Licciardi Messeder Barreto on November 19, 1965) is a Brazilian-American cryptographer and one of the designers of the Whirlpool hash function and the block ciphers Anubis and KHAZAD, together with Vincent Rijmen. He has also co-authored a number of research works on elliptic curve cryptography and pairing-based cryptography, including the eta pairing technique, identity-based cryptographic protocols, and the family of Barreto–Naehrig (BN) and Barreto–Lynn-Scott (BLS) pairing-friendly elliptic curves. More recently he has been focusing his research on post-quantum cryptography, being one of the discoverers of quasi-dyadic codes and quasi-cyclic moderate-density parity-check (QC-MDPC) codes to instantiate the McEliece and Niederreiter cryptosystems and related schemes. His paper "Efficient Algorithms for Pairing-Based Cryptosystems", jointly written with Hae Y. Kim, Ben Lynn and Mike Scott and presented at the Crypto 2002 conference, has been identified in March 2005 as a "Hot Paper", and in December 2005 as "Fast Breaking Paper", by Thomson ISI's Essential Science Indicators (now Science Watch), by virtue of being among the top one-tenth of one percent (0.1%) most cited papers and by having the largest percentage increase in citations in the Computer Science category. Barreto was born in Salvador, capital of the northeastern state of Bahia, Brazil. In 1987, he graduated in physics at the University of São Paulo. He subsequently worked at Unisys Brazil Ltd and Scopus Tecnologia S/A as a software developer and then as chief cryptographer. Barreto received his Ph.D. degree in 2003. He has been awarded the SFI E. T. S. Walton Award 2008–2009. He was associate professor at the Department of Computer and Digital Systems Engineering, Escola Politécnica, University of São Paulo. He is currently a professor at the School of Engineering and Technology of the University of Washington Tacoma.

References

External links Official website at the University of Washington Tacoma

Illustrations

Worked examples

Example 1 — a first encounter with Paulo S. L. M. Barreto

Start with the simplest possible case. Write down what Paulo S. L. M. Barreto claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, 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 Paulo S. L. M. Barreto 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 Paulo S. L. M. Barreto 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 Paulo S. L. M. Barreto

In research: Paulo S. L. M. Barreto appears in astronomy 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 Paulo S. L. M. Barreto 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: Paulo S. L. M. Barreto is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1965 births, Academic staff of the University of São Paulo, American people of Brazilian descent, so understanding it makes those chapters shorter.
In everyday life: Look for Paulo S. L. M. Barreto 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 Paulo S. L. M. Barreto in 20 minutes

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

Frequently asked questions

What is Paulo S. L. M. Barreto in simple terms?

Why does Paulo S. L. M. Barreto matter?

Because it connects several astronomy 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 Paulo S. L. M. Barreto?

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 Paulo S. L. M. Barreto.