Encoding a message with a phrase entails utilizing a key phrase to remodel the unique message right into a secret code. As an illustration, if we use the key phrase “SECRET” to encode the message “HELLO,” we assign every letter of the message to the corresponding letter within the key phrase. This ends in the encoded message “SFMBU.”
Encoding messages with phrases has been used for hundreds of years as a easy but efficient method to defend delicate data. It’s significantly helpful in conditions the place written communication must be saved confidential, comparable to throughout wartime or diplomatic negotiations.
