1We need 2 3* bn_mul_comba8 4* bn_mul_comba4 5* bn_mul_normal 6* bn_mul_recursive 7 8* bn_sqr_comba8 9* bn_sqr_comba4 10bn_sqr_normal -> BN_sqr 11* bn_sqr_recursive 12 13* bn_mul_low_recursive 14* bn_mul_low_normal 15* bn_mul_high 16 17* bn_mul_part_recursive # symetric but not power of 2 18 19bn_mul_asymetric_recursive # uneven, but do the chop up. 20