What is Lorenz cipher?
[[File:Lorenz-SZ42-2.jpg|right|280px|thumbnail|The Lorenz SZ42 machine with its covers removed. [[Bletchley Park]] museum]] The '''Lorenz cipher''' was a class of German rotor [[stream cipher]] machines used by the [[German Army]] during [[World War II]]. It was mostly used for messages among headquarters. This machine and its messages were eventually worked out by the team at [[Bletchley Park]] during [[World War II]]. British [[cryptanalyst]]s (codebreakers) worked out its logical structure three years before they saw the machine.<ref>Hinsley F.H. & Stripp, Alan eds. 1992, ''Codebreakers: The inside story of Bletchley Park''. Oxford: Oxford University Press. ISBN 978-0-19-280132-6</ref><ref>Copeland, B. Jack, ed 2006. ''Colossus: the secrets of Bletchley Park's codebreaking computers''. Oxford: Oxford University Press. ISBN 978-0-19-284055-4 </ref> == References == {{reflist}} [[Category:Cryptography]] [[Category:World War II]]