BN_mod_lshift_quick
int BN_mod_lshift_quick(BIGNUM *r, const BIGNUM *a, int n, const BIGNUM *m);
if (!BN_mod_lshift_quick(r, r, n, m))
LCRYPTO_ALIAS(BN_mod_lshift_quick);
if (!BN_mod_lshift_quick(n2, n2, 2, group->p))
if (!BN_mod_lshift_quick(n3, n0, 3, group->p))
LCRYPTO_USED(BN_mod_lshift_quick);