/src/math/fp/ltc_ecc_fp_mulmod.c line 1078 Code: if (zB && first == 0) { if (zB) { // <-- identical if ((err = ltc_mp.ecc_ptadd(R, fp_cache[idx2].LUT[zB], R, a, modulus, mp)) != CRYPT_OK) { return err; } }