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Dec
16
awarded  Popular Question
Jul
16
comment S-box design criteria and random sboxes
I just want to note that criteria similar to the last two led to the reverse engineering of Enigma.
Jul
16
comment S-box design criteria and random sboxes
Thank you for the link, but what I'm asking is how specific s-box generation techniques affect the security of an algorithm, not how to generate secure s-boxes. By the way, what is the reason for the last two criteria in your question?
Jul
16
awarded  Student
Jul
15
awarded  Scholar
Jul
15
accepted RC4 S-Box and Keystream
Jul
15
comment RC4 S-Box and Keystream
Thanks, might I ask, how many steps must be used such that the s-box is indistinguishable from a random permutation? Also, on the second point, is it correct to assume that the Keystream cannot be successfully predicted even though it is distinguishable?
Jul
15
asked S-box design criteria and random sboxes
Jul
15
asked RC4 S-Box and Keystream