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Purple revealed: Simulation and computer-aided cryptanalysis of Angooki Taipu B
ABSTRACT: PURPLE was the designation given by U. S. cryptanalysts to the cipher machine used by the Japanese Foreign Office for secure...
Cryptologia, 01/01/03 by Freeman, Wes; Sullivan, Geoff; Weierud, Frode · More from publication -
Cryptanalysis of Hagelin machine pin wheels
ABSTRACT: A ciphertext-only attack on the pin wheel patterns of the Hagelin CD-57 Cryptographer is described. The method is also applicable to some...
Cryptologia, 10/01/02 by Sullivan, Geoff · More from publication -
ECM Mark II: Some observations on the rotor stepping, The
ABSTRACT: The ECM Mark II has been described previously in Cryptologia [1]. An analysis of the motion of the rotors is presented here. A computer...
Cryptologia, 04/01/02 by Sullivan, Geoff · More from publication -
Swiss NEMA Cipher machine, The
ADDRESS: (1) 64 Tennyson Road, Headless Cross, Redditch, Worcs. B97 5BJ UNITED KINGDOM. Email: geoff@blueangel.demon.co.uk. URL:...
Cryptologia, 10/01/99 by Sullivan, Geoff; Weierud, Frode · More from publication
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