Codes and Keys

Codes and keys are tools used to protect information. A code transforms readable data into a scrambled format that only authorized parties can decode, ensuring privacy. A key is a secret piece of information, like a password, used to lock (encrypt) and unlock (decrypt) this data. Think of it like locking a diary with a key—you need the right key to open it. Together, codes and keys ensure that sensitive information remains confidential, secure from unauthorized access, whether in communication, storage, or transactions.