Stream Cipher Testing using the Test of Analysis of Number of Euclidian Algorithm Rounds
The new statistical test of gamma randomness of stream cipher is presented in this article. It is based on the round number analysis of the Euclidian algorithm. This work revealed that round number probabilistic distribution is normal distribution. Dependence of distribution average value and of variance on the range N of values analyzed was established. Methods of sequence testing as well as test results are presented. It was established that sequences, which are generated by the PC RAND function from the standpoint of this test are random, and sequences generated by the additive generator and by MISTYl cipher are from the standpoint of this test not rand. Ill. 4,. bibl. 8 (in Lithuanian; summaries in English, Russian and Lithuanian).
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