Lorenz cipher

E1019468

The Lorenz cipher was a high-level German teleprinter encryption system used during World War II, whose interception and decryption by the Allies led to the development of the Colossus computers.

All labels observed (2)

Label Occurrences
Lorenz cipher canonical 4
Lorenz Schlüsselzusatz 1

How this entity was disambiguated

Statements (51)

Predicate Object
instanceOf German military equipment
World War II cryptographic system
cipher machine
teleprinter cipher
alsoKnownAs Lorenz SZ
Lorenz Schlüsselzusatz
linked to: Lorenz cipher

SZ40
SZ42
Tunny
analyzedBy Bill Tutte
Max Newman
basedOn Vernam cipher principle
brokenUsing Colossus computer
linked to: Colossus computers

statistical analysis
codeNameByAllies Tunny
complexityComparedTo more complex than Enigma
countryOfOrigin Nazi Germany
declassified post-World War II
decryptedBy Bletchley Park codebreakers
Government Code and Cypher School
developedBy C. Lorenz AG
encryptionType stream cipher
hadComponent Lorenz SZ40
linked to: Lorenz SZ

Lorenz SZ42
linked to: Lorenz SZ
importance provided high-level intelligence to Allies
improvedVersionIntroducedInYear 1942
influenced postwar computer design
intelligenceCodename Fish
interceptedAt Bletchley Park
interceptedBy British signals intelligence
introducedInYear 1940
ledToDevelopmentOf Colossus computer
linked to: Colossus computers

electronic digital computing techniques
messageType Baudot-coded text
operatedWith twelve wheels in SZ40 model
twelve wheels in SZ42 model
outputType additive key stream
relatedTo Colossus computer
linked to: Colossus computers

Enigma machine
Vernam cipher
signalMedium teleprinter
trafficCategoryByAllies Fish traffic
usedBy German Army High Command
Wehrmacht
usedDuring World War II
usedFor high-level strategic communications
teleprinter traffic encryption
usedForCommunicationBetween German Army High Command and field commanders
wheelFunction chi wheels
mu wheels
psi wheels

How these facts were elicited

Referenced by (5)

Full triples — surface form annotated when it differs from this entity's canonical label.

Colossus computers targetCipherSystem Lorenz cipher
Lorenz cipher alsoKnownAs Lorenz Schlüsselzusatz
linked to: Lorenz cipher
Tunny cipher relatedTo Lorenz cipher
Heath Robinson machine usedAgainst Lorenz cipher