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blag.nullteilerfrei.de | ||
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imapenguin.com
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| | | | | What is an LFSR? An LFSR is a Linear Feedback Shift Register. It's a simple way of generating a sequence of numbers that look random. Used in cryptography and in generating pseudo-random numbers, they are interesting because they are so simple. Shift bits and feed a few of them back into the sequence. That's it. Important note: LFSRs are not cryptographically secure on their own. ESPECIALLY 8-bit LFSRs. More on that in the next post on this topic. | |
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cp4space.hatsya.com
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| | | | | A couple of years ago I described a primep which possesses various properties that renders it useful for computing number-theoretic transforms over the field $latex \mathbb{F}_p$. Specifically, we have: $latex p = \Phi_{192}(2) = \Phi_6(2^{32}) = 2^{64} - 2^{32} + 1$ where the first of these equalities uses the identity that: $latex \Phi_{k}(x) = \Phi_{rad(k)}(x^{k/rad(k)})$... | |
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www.airs.com
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krzysckh.org
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