/* 37095705934669439343138083508754565189542113879843219016388785533085940283555 */
static const fe25519 d = {
    -10913610, 13857413, -15372611, 6949391,   114729, -8787816, -6275908, -3247719, -18696448, -12055116
};

/* 2 * d =
 * 16295367250680780974490674513165176452449235426866156013048779062215315747161
 */
static const fe25519 d2 = {
    -21827239, -5839606,  -30745221, 13898782, 229458, 15978800, -12551817, -6495438, 29715968, 9444199 };

/* sqrt(-1) */
static const fe25519 sqrtm1 = {
    -32595792, -7943725,  9377950,  3500415, 12389472, -272473, -25146209, -2005654, 326686, 11406482
};

/* A = 486662 */
static const fe25519 curve25519_A = {
    486662, 0, 0, 0, 0, 0, 0, 0, 0, 0
};