Key size

Have you ever had a secret diary that you didn't want anyone else to read? Well, when you put a lock on it, the lock has a key that can be used to unlock it. The key size is just like the size of the lock and the key combined.

If your lock is small, it's easier for someone to break it open or pick the lock because there's not much space for the lock's internal pins. On the other hand, if the lock is big and has lots of pins, it's harder to pick because there are more combinations to try.

Key size works the same way with computer security. When you send a message or access a website, the information is encrypted, which means it's coded and can only be read by someone who has the key to unlock it. The key length is the number of possible combinations that the key can generate.

The longer the key, the more possible combinations there are, which makes it harder for someone to break the code and access your information. But if the key is shorter, it's easier to break the code and access your information.

So, if you want to keep your information safe, you want to use a key with a long key size, just like you would want a big, complicated lock on your diary to keep it secure.