Dual code
Okay kiddo, so imagine you have a secret message that you want to send to your friend, but you don't want anyone else to know what it means. To keep your message safe, you can use a special code that only you and your friend know how to read.
There are many different types of codes, but a dual code is a special kind that uses two different systems to encode the message. This makes the code harder to crack because someone who knows one system won't be able to decode the message without also knowing the second system.
It's like having two locks on your diary – someone might be able to pick one lock, but they won't be able to read your secrets without also figuring out how to open the second lock.
So, if you and your friend were using a dual code, you might use one system to scramble the letters in your message, and then use a second system to replace each scrambled letter with a symbol or number. This would make the message very hard for anyone else to read, since they would need to know both systems in order to decode it.
Does that make sense, kiddo?
There are many different types of codes, but a dual code is a special kind that uses two different systems to encode the message. This makes the code harder to crack because someone who knows one system won't be able to decode the message without also knowing the second system.
It's like having two locks on your diary – someone might be able to pick one lock, but they won't be able to read your secrets without also figuring out how to open the second lock.
So, if you and your friend were using a dual code, you might use one system to scramble the letters in your message, and then use a second system to replace each scrambled letter with a symbol or number. This would make the message very hard for anyone else to read, since they would need to know both systems in order to decode it.
Does that make sense, kiddo?