Click (cryptology)
In cryptology , especially in the cryptanalysis of the Enigma rotor key machine used by the German military during the Second World War, a click (plural: clicks ; literally in German : the click or the click ) is a repeated occurrence of identical characters or groups of characters in denotes two or more different ciphertexts .
Clicks are important indications that possibly two or more ciphertexts "in phase" ( English in depth are) aligned. They served the British code breakers in English Bletchley Park as a means of encryption Enigma in the German break . For this purpose, the cryptanalytic method of Banburism was used in particular , with special perforated sheets, called Banbury sheets , being used.
literature
- Mavis Batey : Dilly Knox - A Reminiscence of this Pioneer Enigma Cryptanalyst , Cryptologia , 32: 2, 2008, pp. 104-130. doi: 10.1080 / 01611190801914290
- Friedrich L. Bauer : Deciphered Secrets. Methods and maxims of cryptology. 3rd, revised and expanded edition. Springer, Berlin et al. 2000, ISBN 3-540-67931-6 .
- Tony Sale : The Bletchley Park 1944 Cryptographic Dictionary . Publication, Bletchley Park, 2001. Accessed June 15, 2016. PDF; 0.4 MB
Individual evidence
- ↑ Tony Sale: The Bletchley Park 1944 Cryptographic Dictionary . Publication, Bletchley Park, 2001, p. 27. Accessed: June 15, 2016. PDF; 0.4 MB
- ↑ Tony Sale: The Bletchley Park 1944 Cryptographic Dictionary . Publication, Bletchley Park, 2001, p. 16. Accessed: June 15, 2016. PDF; 0.4 MB
- ↑ Mavis Batey: Dilly Knox - A Reminiscence of this Pioneer Enigma Cryptanalyst , Cryptologia , 32: 2, 2008, p. 109. doi: 10.1080 / 01611190801914290