25 July 1939
Enigma Machine
Authorises disclosure of Poland's Enigma achievements to British and French cryptanalysts at Pyry.
Historical place archive
Browse historical events and people recorded at Pyry in Poland. The records below are rendered directly from the World History Database into this page's initial HTML.
Authorises disclosure of Poland's Enigma achievements to British and French cryptanalysts at Pyry.
Demonstrates the perforated-sheet method to British and French cryptanalysts at the Pyry meeting.
Shares Polish experience of Enigma rotor analysis with the British and French delegations.
Explains Polish Enigma methods and equipment to the British and French delegations at Pyry.
Explains the mathematical reconstruction of Enigma and Polish key-recovery methods to allied cryptanalysts.
Provenance
These entries are generated from stored World History Database records whose country and place fields match Poland and Pyry. Names, dates, event labels and descriptions are reviewed and normalised as the database develops. Historical place names may not match modern administrative boundaries.
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