Ciphertext-only cryptanalysis of Hagelin M-209 pins and lugs
نویسندگان
چکیده
منابع مشابه
Ciphertext-only cryptanalysis of Hagelin M-209 pins and lugs
The Hagelin M-209 was a mechanical encryption device used by the US Army during World War 2 and the Korean War, as well as by other armies and in embassy settings. In this paper, we present a 4-stage hillclimbing algorithm for recovering the full key settings from ciphertext only. The two first stages are based on a divide-and-conquer approach developed by Geoff Sullivan. In our performance eva...
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The Hagelin M-209 portable encryption device was used by the US Army in World War II and the Korean War, as well as by other armies and in embassy settings. In this paper, we present a fully automated computerized known-plaintext attack, based on hillclimbing and a novel fitness function – the Aggregate Displacement Error. In our performance evaluation we show that we are able to recover key se...
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ژورنال
عنوان ژورنال: Cryptologia
سال: 2015
ISSN: 0161-1194,1558-1586
DOI: 10.1080/01611194.2015.1028683