Score:2

PLONK: Rationale Behind Specific Polynomial Evaluations in Round 4

my flag

In round 4, protocol evaluates a(zeta), b(zeta), c(zeta), Sσ1(zeta), Sσ2(zeta). I know linearisation trick in round 5 implies the identity of other terms. Can we evaluate other term e.g. Sσ1(zeta), Sσ3(zeta) instead? Is there any consideration behind these selected terms in paper?

ref:

  1. PLONK paper: https://eprint.iacr.org/2019/953.pdf
  2. https://hackmd.io/@aztec-network/ByiUK_Plt
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