Lecture on cryptoanalysis of GMR-1 and GMR-2 ciphers
On February 2nd 2012, researchers Benedikt Driessen und Ralf Hund of the University of Bochum will report on their analysis of the GMR-1 and GMR-2 ciphers.
According to the abstract , the cipher used in GMR-1 and thus Thuraya is more or less the same than GSM's A5/2, and can be broken at similar complexity (i.e. almost none).
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