Ed25519.check: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/spec/crypto/ed25519.bend as Ed25519
Lines 292-298 of bend-collections-laws-crypto@1.0.0.0/spec/crypto/ed25519.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/ed25519.bend&start_line=292&end_line=298

import Base

def check(+one: Nat, +p: Nat, +d: Nat, +s: Nat, +rb: List<&2, U32>, +pk: List<&2, U32>, +msg: List<&2, U32>, ra: Maybe<&2, EPt>, aa: Maybe<&2, EPt>) -> Bool:
  match ra aa:
    case Some{r} Some{+a}:
      +k = hram(one, rb, pk, msg)
      equal(p, mul(one, p, d, s, base(p, d)), add(p, d, r, mul(one, p, d, k, a)))
    case _ _:
      False{}

Uses (11):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/ed25519.bend&name=EPt
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/ed25519.bend&name=add
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/ed25519.bend&name=base
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/ed25519.bend&name=equal
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/ed25519.bend&name=hram
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/ed25519.bend&name=mul