000000"), }, // If u is non-zero and v is zero, defined to return (0, FALSE). { decodeHex("01000000000000000000"), decodeHex("00000000000000000000"), 0, decodeHex("00000000000000000000"), }, // 2/1 is not square in this field. { decodeHex("02000000000000000000"), decodeHex("01000000000000000000"), 0, decodeHex("3c5ff1b5d8e4113b871b"), }, // 4/1 == 2² { decodeHex("04000000000000000000"), decodeHex("01000000000000000000"), 1, decodeHex("02000000000000000000"), }, // 1/4 == (2⁻¹)² == (2^(p-2))² per...