This sentence has slightly weird grammar so I don't fully understand what you want to say: 'Therefore, the curve of the 128-bit security level
is often used at current, so this memo recommends both BLS12-381 and
BN462 in consideration of the future use and the safety side.'
Do you mean:
'As curves of 128-bit security level are currently the most widely used, we recommend both BLS12-381 and BN462 in this memo in order to have a more efficient and a more prudent option respectively.'
Comments from Chloe (Expert Reviewer)
Do you mean: 'As curves of 128-bit security level are currently the most widely used, we recommend both BLS12-381 and BN462 in this memo in order to have a more efficient and a more prudent option respectively.'