cipher

cipher
Any cryptographic system in which arbitrary symbols (or groups of symbols) represent units of plain text of regular length, usually single letters; units of plain text are rearranged; or both, in accordance with certain predetermined rules. See also cryptosystem.

Military dictionary. 2000.

Игры ⚽ Поможем решить контрольную работу
Synonyms:

Look at other dictionaries:

  • Cipher — Ci pher, n. [OF. cifre zero, F. Chiffre figure (cf. Sp.cifra, LL. cifra), fr. Ar. [,c]ifrun, [,c]afrun, empty, cipher, zero, fr. [,c]afira to be empty. Cf. {Zero}.] [1913 Webster] 1. (Arith.) A character [0] which, standing by itself, expresses… …   The Collaborative International Dictionary of English

  • cipher — UK [ˈsaɪfə(r)] / US [ˈsaɪfər] or cypher UK / US noun Word forms cipher : singular cipher plural ciphers 1) [countable/uncountable] a secret system of writing, used for sending messages so that no one can understand them unless they know the… …   English dictionary

  • Cipher — Ci pher, a. Of the nature of a cipher; of no weight or influence. Twelve cipher bishops. Milton. [1913 Webster] …   The Collaborative International Dictionary of English

  • cipher — [sī′fər] n. [ME cifre < OFr cyfre < ML cifra < Ar ṣifr, ṣefr, a cipher, nothing < ṣafara, to be empty] 1. the symbol 0, indicating a value of zero 2. a person or thing of no importance or value 3. a) a system of secret writing based… …   English World dictionary

  • Cipher — Ci pher, v. i. [imp. & p. p. {Ciphered}; p. pr. & vb. n. {Ciphering}.] To use figures in a mathematical process; to do sums in arithmetic. [1913 Webster] T was certain he could write and cipher too. Goldsmith. [1913 Webster] …   The Collaborative International Dictionary of English

  • Cipher — Ci pher, v. t. 1. To write in occult characters. [1913 Webster] His notes he ciphered with Greek characters. Hayward. [1913 Webster] 2. To get by ciphering; as, to cipher out the answer. [1913 Webster] 3. To decipher. [Obs.] Shak. [1913 Webster]… …   The Collaborative International Dictionary of English

  • cipher — [n] zero; nothingness blank, diddly squat*, goose egg*, insignificancy, nada*, naught, nil, nobody, nonentity, nothing, nought, nullity, squat, zilch, zip, zippo*, zot*; concepts 668,787 cipher [v] figure out code break, calculate, clear up,… …   New thesaurus

  • cipher — index blank (emptiness), calculate, designation (symbol), indicant, nonentity Burton s Legal Thesaurus. William C. Burton …   Law dictionary

  • cipher — is the recommended spelling, not cypher …   Modern English usage

  • cipher — (also cypher) ► NOUN 1) a code. 2) a key to a code. 3) an unimportant person or thing. 4) dated a zero. ► VERB ▪ encode (a message). ORIGIN Old French cifre, from Arab …   English terms dictionary

  • Cipher — For other uses, see Cipher (disambiguation). Edward Larsson s rune cipher resembling that found on the Kensington Runestone. Also includes runically unrelated blackletter writing style and pigpen cipher. In cryptography, a cipher (or cypher) is… …   Wikipedia

Share the article and excerpts

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