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Questions about algorithms that deterministically generate sequences of numbers that have stochastic properties of random sequences.

1 vote
0 answers
116 views

Pseudo random generator that is non injective

I was reading answer to https://crypto.stackexchange.com/questions/24941/prove-there-is-prg-that-is-not-necessarily-one-to-one Here assuming existence of G: from n bit to l(n) bits non injective G' i …
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4 votes
2 answers
514 views

Concatenated pseudorandom generators

I have two pseudorandom generators $G_1$ and $G_2$ from $k$ bit to $2k$ bit. I have another PRG $G_3$ from $k$ to $2k$ bits. Now I buildup a new function from $k$ to $4k$ as follows: Let $x$ be $k$ b …
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