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Peter Landrock

Peter Landrock 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 Peter Landrock rather than just read about it. In short: Peter Landrock (born August 20, 1948 in Horsens) is a Danish cryptographer and mathematician. He is known for his contributions to data encryption methods and codes.

Peter Landrock — main illustration
Peter Landrock — illustration

Key takeaways

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

Reference excerpt

Peter Landrock (born August 20, 1948 in Horsens) is a Danish cryptographer and mathematician. He is known for his contributions to data encryption methods and codes. Landrock has been active since the 1970s as research scientist and faculty member for Cambridge University and the University of Aarhus and others, and was active for Microsoft and Cryptomathic. He has been visiting professor at Oxford University, Leuven University and Princeton University.

Background and career Landrock obtained a diploma in mathematics and physics in 1972 from the University of Aarhus. He received his Ph.D. in mathematics from the University of Chicago in 1974 for his research on elementary abelian and dihedral defect groups, under George Isaac Glauberman and Richard Dagobert Brauer. In 1975, Landrock became associate Professor in the Department of Mathematics at Aarhus University, then full Professor. From 1982 until 1983, Landrock was visiting professor at the Institute for Advanced Study in Princeton, New Jersey. In 1986 he founded the company Cryptomathic together with Ivan Damgård. It was his research work on cryptography and coding theory at the Isaac Newton Institute, which inspired him to shift the focus of his work to corporate research at Cryptomathic, where he joined forces with researchers such as Vincent Rijmen and Whitfield Diffie. By 1996 he had joined the Isaac Newton Institute, Cambridge University as Research Program Organizer, and since 1997, Landrock has been senior member of the Wolfson College, Cambridge University. Landrock has been member of the Danish IT Security Council as adviser to the Danish Government from 1999 to 2007. From 1997 until 2010, Landrock was as a Member of Microsoft's Technical Advisory Board in Cambridge and has also served as a member of the board of the Villum Foundation in Copenhagen since 2008. In 2014 Landrock became Member of the Technical Advisory Board of the Turing Gateway of Mathematics at Cambridge University. In 2021, he was elected a By-Fellow of Churchill College, Cambridge.

Cryptography Landrock was President of the International Association for Cryptologic Research from 1992 to 1995 and General Chair at the Eurocrypt conference for cryptography research in 1990. In 1996 he was one of the organizers of a research programme in Cryptography at the Newton Institute at University of Cambridge. The term "What You See Is What You Sign" (WYSIWYS) was coined in 1998 by Landrock and Torben P. Pedersen of Cryptomathic during their work on delivering secure and legally binding digital signatures for Pan-European projects. Landrock contributed to more than twenty entries to the Encyclopedia of Cryptography and Security including articles on PKCS, SSH, public key infrastructure and certificate authorities. His research focus since the late 1980s included subject areas as Key management systems, EMV and Card Payment Solutions and Authentication. He has lectured on cryptography at more than 150 Universities. The European Patent Office recognized that Landrock's “inventions have helped secure electronic voting systems and electronic passport solutions”.

Awards and recognition In 1991 Landrock was awarded the Danish Data Security Prize, and in 2004, Landrock received the BIT Price for engineering entrepreneurship from the Danish Engineers. His achievements with Cryptomathic were recognised by the World Economic Forum in 2003 and he received the VISA Smart Start Award for the work on Chip and Pin. In 2010, Landrock was named a finalist for European Inventor 2010 in the "Lifetime Achievement" category by the European Patent Office stating that many of today’s established data encryption methods and codes “bear the mark of ... Peter Landrock” In July 2019, Landrock was awarded the degree of Doctor of Science honoris causa for his lifetime achievement in cryptographic technology.

References

External links Homepage of Professor Peter Landrock at Wolfson College Cambridge List of Publications by Peter Landrock Peter Landrock at the Mathematics Genealogy Project

Illustrations

Peter Landrock illustration

Worked examples

Example 1 — a first encounter with Peter Landrock

Start with the simplest possible case. Write down what Peter Landrock 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 Peter Landrock 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 Peter Landrock 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 Peter Landrock

In research
Peter Landrock 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 Peter Landrock 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
Peter Landrock is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1948 births, Danish cryptographers, Danish mathematicians, so understanding it makes those chapters shorter.
In everyday life
Look for Peter Landrock 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 Peter Landrock in 20 minutes

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

Frequently asked questions

What is Peter Landrock in simple terms?

Peter Landrock (born August 20, 1948 in Horsens) is a Danish cryptographer and mathematician. He is known for his contributions to data encryption methods and codes.

Why does Peter Landrock 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 Peter Landrock?

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 Peter Landrock.

Tags

  • 1948 births
  • Danish cryptographers
  • Danish mathematicians
  • Fellows of Churchill College, Cambridge
  • Living people
  • Microsoft people
  • People from Horsens
  • Public-key cryptographers
  • University of Chicago alumni

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