Everything about Henryk Zygalski totally explained
Henryk Zygalski (;
1908 -
1978) was a
Polish mathematician and
cryptologist who worked at breaking German
Enigma ciphers before and during
World War II. Zygalski was, from September
1932, a civilian
cryptologist with the
Polish General Staff's
Biuro Szyfrów (Cipher Bureau), housed in the
Saxon Palace in
Warsaw. He worked there with fellow
Poznań University alumni and Cipher Bureau cryptology-course graduates
Marian Rejewski and
Jerzy Różycki. Together they developed methods and equipment for breaking Enigma messages.
In late
1938, in response to growing complexities in German encryption procedures, Zygalski designed the "
perforated sheets," also known as "
Zygalski sheets," a manual device for finding Enigma settings. This scheme, like the earlier "
card catalog," was independent of the number of connections being used in the Enigma's plugboard, or commutator.
After the war he remained in exile in the
United Kingdom and worked as a lecturer in mathematical statistics at the
University of Surrey until his retirement. During this period he was prevented from talking about his achievements in cryptography by the
Official Secrets Act. He died
August 30,
1978 in
Liss and is buried in
London. Shortly before his death he was credited for his role in breaking the Enigma and awarded with doctorate
honoris causa of the Polish Exiled University.
More information about Zygalski may be found in the article on
Marian Rejewski.
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