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A code name, codename, call sign or cryptonym is a code word or name used, sometimes clandestinely, to refer to another name, word, project, or person. Code names are often used for military purposes, or in espionage. They may also be used in industrial counter-espionage to protect secret projects and the like from business rivals, or to give ...
A list of several such code words can be seen at Byeman Control System. Exercise terms – a combination of two words, normally unclassified, used exclusively to designate an exercise or test; In 1975, the Joint Chiefs of Staff introduced the Code Word, Nickname, and Exercise Term System (NICKA) which automated the assignment of names. NICKA ...
According to former CIA Director Richard M. Helms: "The code names for most Agency operations are picked in sequence from a sterile list, with care taken not to use any word that might give a clue to the activity it covers. On some large projects, code names are occasionally specially chosen—GOLD, SILVER, PBSUCCESS, CORONA.
Traditionally, all family members' code names start with the same letter. The codenames change over time for security purposes, but are often publicly known. For security, codenames are generally picked from a list of such 'good' words, but avoiding the use of common words which could likely be intended to mean their normal definitions.
Huffman coding. Huffman tree generated from the exact frequencies of the text "this is an example of a huffman tree". Encoding the sentence with this code requires 135 (or 147) bits, as opposed to 288 (or 180) bits if 36 characters of 8 (or 5) bits were used (This assumes that the code tree structure is known to the decoder and thus does not ...
Blend word. In linguistics, a blend —also known as a blend word, lexical blend, or portmanteau [a] —is a word formed, usually intentionally, by combining the sounds and meanings of two or more words. [2] [3] [4] English examples include smog, coined by blending smoke and fog, [3] [5] as well as motel, from motor ( motorist) and hotel. [6]
In one-part codes, the plaintext words and phrases and the corresponding code words are in the same alphabetical order. They are organized similar to a standard dictionary. Such codes are half the size of two-part codes but are more vulnerable since an attacker who recovers some code word meanings can often infer the meaning of nearby code words.
Code word (figure of speech), designed to convey a predetermined meaning to a receptive audience, while remaining inconspicuous to others. Procedure word, in voice communication. Code word, an element of a codebook designed so that the meaning of the code word is opaque without the code book. Code name, a clandestine name or cryptonym used to ...