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crypto/bn256: fix incorrect constant in MulXi

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bigbear 2026-04-04 18:04:39 +02:00 committed by GitHub
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commit 7f9ca3a339
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crypto/bn256/google/gfp2.go
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@ -153,7 +153,7 @@ func (e *gfP2) MulScalar(a *gfP2, b *big.Int) *gfP2 {
// MulXi sets e=ξa where ξ=i+9 and then returns e.
func (e *gfP2) MulXi(a *gfP2, pool *bnPool) *gfP2 {
// (xi+y)(i+3) = (9x+y)i+(9y-x)
// (xi+y)(i+9) = (9x+y)i+(9y-x)
tx := pool.Get().Lsh(a.x, 3)
tx.Add(tx, a.x)
tx.Add(tx, a.y)