The Lorenz SZ42 machine with its covers removed. Bletchley Park
The Lorenz cipher was the German rotor stream cipher machines used by the German Army during World War II. This machine and its messages were eventually worked out by the team at Bletchley Park during World War II.
British cryptanalysts (codebreakers) worked out its logical structure three years before they saw the machine.
- ↑ Hinsley F.H. & Stripp, Alan eds. 1992, Codebreakers: The inside story of Bletchley Park. Oxford: Oxford University Press. ISBN 978-0-19-280132-6
- ↑ Copeland, B. Jack, ed 2006. Colossus: the secrets of Bletchley Park's codebreaking computers. Oxford: Oxford University Press. ISBN 978-0-19-284055-4