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Lorenz cipher facts for kids

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The Lorenz SZ42 machine with its covers removed. Bletchley Park museum

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.

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Lorenz cipher Facts for Kids. Kiddle Encyclopedia.