cipher

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cipher:

see cryptographycryptography
[Gr.,=hidden writing], science of secret writing. There are many devices by which a message can be concealed from the casual reader, e.g., invisible writing, but the term cryptography strictly applies to translating messages into cipher or code.
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cipher

[′sī·fər]
(communications)
A transposition or substitution code for transmitting secret messages.

cipher

, cypher
1. an obsolete name for zero
2. any of the Arabic numerals (0, 1, 2, 3, etc., to 9) or the Arabic system of numbering as a whole
3. Music a defect in an organ resulting in the continuous sounding of a pipe, the key of which has not been depressed

cipher

(1) The core algorithm used to encrypt data. A cipher transforms regular data (plaintext) into a coded set of data (ciphertext) that is not reversible without a key. For example, AES and DES are examples of secret key block ciphers. The complete encryption algorithm is the cipher plus the technique used to apply the cipher to the message, which can be a very intricate series of steps. See cryptography, encryption algorithm, block cipher, cipher suite and plaintext.

(2) An encrypted character. See ciphertext and cryptography.
References in periodicals archive ?
Link encryption usually requires more ciphering devices to protect the system than does end-to-end encryption--often twice as many.
These ciphering standards are currently available to entities that meet a defined set of criteria.
NASDAQ: VLSI) of San Jose, CA today announced a design win with Hewlett-Packard Company (NYSE: HWP) for the VLSI VMS110 coprocessor, a high-speed ciphering engine supporting the industry standard Data Encryption Standard (DES) algorithm.