[32]byte return v.bytes(&buf) } func (v *Point) bytes(buf *[32]byte) []byte { checkInitialized(v) var zInv, x, y field.Element zInv.Invert(&v.z) // zInv = 1 / Z x.Multiply(&v.x, &zInv) // x = X / Z y.Multiply(&v.y, &zInv) // y = Y / Z out := copyFieldElement(buf, &y) out[31] |= byte(x.IsNegative() << 7) return out } var feOne = new(field.Element).One() // SetBytes sets v = x, where x is a 32-byte encoding of v. If x does not // represent a valid point on the curve, SetBytes returns nil and an error...