Would reseeding a PRNG with the PRN from the previous generation have any effects whatsoever on the quality of the generated numbers; if so, does this depend on the PRNG used, or are the effects generally applicable to any algorithm?
Perhaps I'll enhance the question with some pseudo-code:
firstSeed := get_seed_from_entropy_pool()
seed(firstSeed)
firstPrn := rand()
seed(firstPrn)
nextPrn := rand()
Is nextPrn
already of inferior quality? Would quality decrease if repeated?
rand()
returns a 32-bit or 64-bit number, then this definitely isn't secure. The seed should be 256 bits. $\endgroup$