// pointer to the scalarOrder field because comparing generic and
		// instantiated types is not supported.
		if &c.scalarOrder[0] == &p521Order[0] {
			key[0] &= 0b0000_0001
		}

		// In tests, rand will return all zeros and NewPrivateKey will reject
		// the zero key as it generates the identity as a public key. This also
		// makes this function consistent with crypto/elliptic.GenerateKey.

			}
		}
	}
}

func BitRev7(n uint8) uint8 {
	if n>>7 != 0 {
		panic("not 7 bits")
	}
	var r uint8
	r |= n >> 6 & 0b0000_0001
	r |= n >> 4 & 0b0000_0010
	r |= n >> 2 & 0b0000_0100
	r |= n /**/ & 0b0000_1000
	r |= n << 2 & 0b0001_0000
	r |= n << 4 & 0b0010_0000
	r |= n << 6 & 0b0100_0000
	return r
}