Each row starts with a key letter. The rest of the row holds the letters A to Z (in shifted order). Although there are 26 key rows shown, a code will use only as many keys (different alphabets) as there are unique letters in the key string, here just 5 keys: {L, E, M, O, N}. For successive letters of the message, successive letters of the key string will be taken and each message letter enciphered by using its corresponding key row. When a new character of the message is selected, the next letter of the key is chosen, and the row corresponding to that char is gone along to find the column heading that matches the message character. The letter at the intersection of [key-row, msg-col] is the enciphered letter.
Each row starts with a key letter The rest of the row holds the letters A to Z (in shifted order) Although there are 26 key rows shown, a code will use only as many keys (different alphabets) as there are unique letters in the key string, here just 5 keys: {L, E, M, O N}. For successive letters of the message, successive letters of the key string will be taken and each message. letter enciphered by using its corresponding key row. When a new character of the message is selected, the next letter of the key is .chosen, and the row corresponding to that char is gone along to find the column heading that matches the message character. The letter at the in,tersection of [key-row, msg-col] is the enciphered letter.