Banburismus
E1019464
Banburismus was a cryptanalytic technique developed at Bletchley Park to help break German Enigma ciphers by reducing the number of keys that needed to be tested.
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
cryptanalytic technique
ⓘ
statistical method ⓘ |
| appliedTo |
German Naval Enigma
NERFINISHED
ⓘ
Kriegsmarine communications ⓘ |
| appliesTo | intercepted Enigma ciphertexts ⓘ |
| basedOn |
Bayesian inference
NERFINISHED
ⓘ
probability theory ⓘ statistical analysis of letter frequencies ⓘ |
| classifiedAs | manual cryptanalytic method ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| developedAt | Bletchley Park NERFINISHED ⓘ |
| developedBy |
Alan Turing
NERFINISHED
ⓘ
Gordon Welchman NERFINISHED ⓘ cryptanalysts at Bletchley Park ⓘ |
| developedDuring | World War II NERFINISHED ⓘ |
| documentedIn |
declassified Bletchley Park reports
ⓘ
histories of World War II codebreaking ⓘ |
| effect |
increased efficiency of Enigma key searches
ⓘ
reduced bombe machine run-time ⓘ |
| followedBy | more automated bombe-based techniques ⓘ |
| goal |
to eliminate improbable Enigma keys
ⓘ
to rank likely Enigma keys ⓘ |
| historicalSignificance |
contributed to Allied naval intelligence
ⓘ
helped counter the U-boat threat in the Battle of the Atlantic ⓘ |
| language | English terminology ⓘ |
| namedAfter | Banbury sheets NERFINISHED ⓘ |
| notablePractitioner |
Alan Turing
NERFINISHED
ⓘ
Gordon Welchman NERFINISHED ⓘ Hugh Alexander NERFINISHED ⓘ |
| partOf |
Allied codebreaking efforts
ⓘ
Bletchley Park cryptanalysis operations NERFINISHED ⓘ |
| precededBy | early ad hoc Enigma solving methods ⓘ |
| relatedTo |
Turingery
NERFINISHED
ⓘ
bombe NERFINISHED ⓘ crib-based attacks ⓘ |
| requires | large volumes of intercepted messages ⓘ |
| status | obsolete ⓘ |
| timePeriod | early 1940s ⓘ |
| usedBy |
British codebreakers
ⓘ
Hut 8 NERFINISHED ⓘ |
| usedFor |
breaking German Enigma ciphers
ⓘ
reducing the number of Enigma keys to be tested ⓘ |
| uses |
Banbury sheets
ⓘ
card-based comparison of ciphertexts ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.