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cryptography

cryptography

8 7.4
To make and break codes to keep messages secret
  • noun
  • /krɪpˈtɒɡrəfi/
  • Specialized
translation icon : criptografía
  • Cryptography systems are based on mathematical problems so complex they cannot be solved without a key.
  • public key cryptography
  • key cryptography

The original motivation is to base cryptography on the MP complete problem.

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Examples

  • Keeping numbers secret is a problem of cryptography, a branch of mathematics.

    Fiction book (1995)
  • The protection of personal information can also be accomplished through the use of privacy-enhancing technologies such as cryptography, firewalls, and screening devices.

    Academic text (1999)
  • Why not just use cryptography all of the time in use cases like this?

  • I always wanted to learn cryptography.

  • Are you familiar with cryptography?

  • Andrew has carried out extensive research in cryptography and has published more than 40 conference and journal publications.

    Blog text (11)
  • With so much weak cryptography out there, it's awfully hard to distinguish a good system.

    Blog text (11)
  • Sophisticated cryptography is as resistant as ever to massive frontal attacks.

    Academic text (2005)
  • Stanford researchers demonstrate the first step in a scalable quantum cryptography system that could lead to uncrackable telecommunications.

    Blog text (19)
  • Keeping information safe is the main purpose of cryptography in modern communications.

Synonyms

cryptology
vscryptography
  • Specialized
2 8.7

The study of secret codes and how to make or break them

focuses on making and using codes to keep information secret

Surface Forms

cryptography singular

Morphology

cryptography = crypto + graphy

The word is built from classical combining forms meaning 'hidden' and 'writing', so the sense is partly guessable, but the modern technical meaning is specialized and not fully transparent to an average learner.

Etymology

Cryptography comes from Greek parts crypto- meaning 'hidden' and -graphy meaning 'writing', so it literally means 'hidden writing' and explains why cryptography is the science of making and solving secret messages.