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faster verifyPairings

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Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
This commit is contained in:
Csaba Kiraly 2022-04-12 14:27:21 +02:00
parent 434b6a1c0d
commit 62cd099f4f
No known key found for this signature in database
GPG Key ID: 0FE274EE8C95166E
1 changed files with 6 additions and 6 deletions
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12
dagger/storageproofs/backends/backend_constantine.nim
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@ -134,19 +134,19 @@ proc ec_hash_to_g1*(dst: var ec_p1,
proc verifyPairings*(a1: ec_p1, a2: ec_p2, b1: ec_p1, b2: ec_p2) : bool =
when C.getEmbeddingDegree() == 12:
var gt1, gt2 {.noInit.}: Fp12[C]
var gt {.noInit.}: Fp12[C]
else:
{.error: "Not implemented: signature on k=" & $C.getEmbeddingDegree() & " for curve " & $$C.}
var a1aff, b1aff {.noInit.}: ec_p1_affine
var a2aff, b2aff {.noInit.}: ec_p2_affine
var a2aff, negb2aff {.noInit.}: ec_p2_affine
a1aff.affine(a1)
b1aff.affine(b1)
a2aff.affine(a2)
b2aff.affine(b2)
gt1.pairing(a2aff, a1aff)
gt2.pairing(b2aff, b1aff)
return bool(gt1 == gt2)
negb2aff.affine(b2)
negb2aff.neg(negb2aff)
gt.pairing([a2aff, negb2aff], [a1aff, b1aff])
return gt.isOne().bool()
func ec_from_bytes*(
dst: var Signature,