Challenge "ORYX Stream Cipher — Part 3 (revised)" ¶
By: Javex on June 6, 2013, 8:56 p.m.
The ORYX stream cipher consists of three 32-bit LFSRs X, A, B which are shifted differently depending on some bits in the LFSR X. The key stream is a combination of the highest 8 bits of each of the three LFSRs. It is neither feasible nor necessary to search the whole 96-bit key space, there are more efficient methods!
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