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Issue No. 07 - July (1979 vol. 28)
ISSN: 0018-9340
pp: 483-487
F. Rubin , Data Systems Division, IBM Corporation
Pless has proposed a stream cipher based on J?K flip-flops that uses 8 linear shift registers with feedback, having a combined length of 97 bits, 4 J?K flip-flops, and a 4-stage cycling counter. The cipher has 2.54 ? 10<sup>51</sup>initial states (keys), and generates a presumably pseudorandom stream whose period is 1.52 ? 10<sup>29</sup>bits. Despite these impressive statistics, it is computation
stream cipher, Boolean equations, code breaking, cryptography, J?K flip-flop, linear shift register

F. Rubin, "Decrypting a Stream Cipher Based on J?K Flip-Flops," in IEEE Transactions on Computers, vol. 28, no. , pp. 483-487, 1979.
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