cryptography

cryptography
—cryptographer, cryptographist, n. —cryptographic /krip'teuh graf"ik/, cryptographical, cryptographal, adj. —cryptographically, adv.
/krip tog"reuh fee/, n.
1. the science or study of the techniques of secret writing, esp. code and cipher systems, methods, and the like. Cf. cryptanalysis (def. 2).
2. the procedures, processes, methods, etc., of making and using secret writing, as codes or ciphers.
3. anything written in a secret code, cipher, or the like.
[1635-45; CRYPTO- + -GRAPHY]

* * *

Practice of the enciphering and deciphering of messages in secret code in order to render them unintelligible to all but the intended receiver.

Cryptography may also refer to the art of cryptanalysis, by which cryptographic codes are broken. Collectively, the science of secure and secret communications, involving both cryptography and cryptanalysis, is known as cryptology. The principles of cryptography are today applied to the encryption of fax, television, and computer network communications. In particular, the secure exchange of computer data is of great importance to banking, government, and commercial communications. See also data encryption.

* * *


Universalium. 2010.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • Cryptography — Cryp*tog ra*phy ( f?), n. [Cf. F. cryptographie.] 1. The act or art of writing in code or secret characters; also, secret characters, codes or ciphers, or messages written in a secret code. [1913 Webster +PJC] 2. the science which studies methods …   The Collaborative International Dictionary of English

  • cryptography — The process of writing or solving codes. The term describes processes by which transmissions of data are kept secure by applying very large numbers with particular mathematical properties for the purpose of encryption of or scrambling data.… …   Law dictionary

  • cryptography — 1650s, from Fr. cryptographie or directly from Mod.L. cryptographia, from Gk. kryptos hidden + GRAPHY (Cf. graphy). Related: Cryptograph; cryptographer …   Etymology dictionary

  • cryptography — ► NOUN ▪ the art of writing or solving codes. DERIVATIVES cryptographer noun cryptographic adjective …   English terms dictionary

  • cryptography — [krip tä′grə fē] n. [ CRYPTO + GRAPHY] 1. the art of writing or deciphering messages in code 2. the system used in a code or cipher cryptographer n. cryptographist cryptographic [krip΄tə graf′ik] adj. cryptographically adv …   English World dictionary

  • Cryptography — Secret code redirects here. For the Aya Kamiki album, see Secret Code. Symmetric key cryptography, where the same key is used both for encryption and decryption …   Wikipedia

  • Cryptography — The encoding and decoding of secret messages. Cryptography in genetics: The term cryptography can be applied to human DNA since the message of life is encoded in DNA. And for eons even the existence of DNA was unknown and the information therein… …   Medical dictionary

  • cryptography — noun [kɹ̥ɪpˈtʰɒɡɹəfiː]|/kɹɪpˈtɒɡ.ɹə.fi/ The discipline concerned with communication security (eg, confidentiality of messages, integrity of messages, sender authentication, non repudiation of messages, and many other related issues), regardless… …   Wiktionary

  • cryptography — kriptografija statusas T sritis informatika apibrėžtis Duomenų užšifravimo ir iššifravimo būdai ir priemonės. Kriptografija buvo naudojama ir iki kompiuterių – tai buvo rašymo būdas, kuriuo įslaptinamas teksto turinys. Kriptografinė technika… …   Enciklopedinis kompiuterijos žodynas

  • Cryptography Research — Cryptography Research, Inc. Type Private subsidiary Headquarters San Francisco, California Key people …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”