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Chilly vs Cilly - What's the difference?

chilly | cilly |

As an adjective chilly

is cold enough to cause shivering; or suddenly feeling cold.

As a noun cilly is

(cryptography|dated) any predictable facet of the cipher due to operator error or laziness, whose existence helped the allies to break the code.

chilly

English

Adjective

(er)
  • Cold enough to cause shivering; or suddenly feeling cold
    • I'm getting rather chilly over here - could you shut the window please?
  • Unfriendly or distant and cool
    • ''She gave me a chilly look when I suggested it

    Synonyms

    * See also

    Related terms

    * chill * chillily * chilliness

    References

    * *

    cilly

    English

    Noun

    (cillies)
  • (cryptography, dated) Any predictable facet of the cipher due to operator error or laziness, whose existence helped the Allies to break the code.
  • * 2000 , Simon Singh, The Code Book
    • Another type of cilly was the repeated use of the same message key, perhaps the initials of the operator's girlfriend...
  • * 2002 , Ronald L Krutz, Russell Dean Vines, The CISSP Prep Guide: Gold Edition?
    • Answer c is a reference to a cilly , which was a three-character message key used in the German Enigma machine.
  • * 2005 , Brian J Winkel, Cipher A Deavours, David Kahn, Louis Kruh, The German Enigma cipher machine
    • Taunt describes the work involved in breaking Enigma messages, cribs, cillies , the Herivel tip, help from Bombes and more.
  • * 2006 , Rebecca Ann Ratcliff, Delusions of intelligence: Enigma, Ultra and the end of secure ciphers?
    • By 1944, cillies had already become rare; hence, Bletchley Park had already found other breaks into the Enigma nets.
  • * 2007 , Friedrich Ludwig Bauer, Decrypted secrets: methods and maxims of cryptology?
    • Cillies resulted from a combination of two different mistakes in a multi-part message by some Enigma operators.