original: To avoid adversaries from guessing the key using a brute-force attack, the key space is usually designed to be extremely large.
simplifications: to keep enemies from guessing the key with a brute-force attack, it is designed to be very large The space key is designed to be large to avoid guessing mistakes,. The input box is usually long to allow for better password protection. To keep foes from guessing the key using a brute-force attack, the key space is designed to be extremely large. To avoid enemies from guessing the key using a brute-force attack, the key space is usually very large. To keep enemies from guessing the key, the key space is designed to be very large. The key space is usually designed to be extremely large to avoid attackers from getting the key using a brute-force attack. To avoid enemies from guessing the key using a strong attack, the key space is usually made to be very large. To stop hackers from guessing the key using a brute-force attack, the key space is made  very large. To prevent adversaries from guessing a key use a brute-force attack, the key space is usually designed to be extremely large.