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Cilly vs Null - What's the difference?

cilly | null |

As nouns the difference between cilly and null

is that 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 while null is zero, nil; the cardinal number before einn.

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.

    null

    English

    Noun

    (en noun)
  • A non-existent or empty value or set of values.
  • Zero]] quantity of [[expression, expressions; nothing.
  • (Francis Bacon)
  • Something that has no force or meaning.
  • (computing) the ASCII or Unicode character (), represented by a zero value, that indicates no character and is sometimes used as a string terminator.
  • (computing) the attribute of an entity that has no valid value.
  • Since no date of birth was entered for the patient, his age is null .
  • One of the beads in nulled work.
  • (statistics) null hypothesis
  • Adjective

    (en adjective)
  • Having no validity, "null and void"
  • insignificant
  • * 1924 , Marcel Proust, Within a Budding Grove :
  • In proportion as we descend the social scale our snobbishness fastens on to mere nothings which are perhaps no more null than the distinctions observed by the aristocracy, but, being more obscure, more peculiar to the individual, take us more by surprise.
  • absent or non-existent
  • (mathematics) of the null set
  • (mathematics) of or comprising a value of precisely zero
  • (genetics, of a mutation) causing a complete loss of gene function, amorphic.
  • Derived terms

    * nullity

    Verb

    (en verb)
  • to nullify; to annul
  • (Milton)

    See also

    * nil ----