An Improved Estimate of the Correlation of Distinguisher for Dragon
نویسندگان
چکیده
The function F of Dragon plays an important role on both the keystream generation and the internal state update. We analyze the function F of Dragon by linear cryptanalytic methods. Thanks to an efficient algorithm on linear approximations of the modular addition, we observed that there were a large number of approximations with significant correlations in the nonlinear components of the function F . Using linear approximations of the modular addition with correlations up to 2, we estimate that the distinguisher for Dragon has a correlation of 2.
منابع مشابه
An Improved Distinguisher for Dragon
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