Final answer:
The encrypted message of "SEND SUPPLIES" using an alphabetic Caesar cipher with a starting shift of 7 and increasing after each character is encoded will result in a new string with shifted alphabetical characters.
Step-by-step explanation:
The student has asked for the message "SEND SUPPLIES" to be encrypted using an alphabetic Caesar cipher that starts with a shift of 7 and increases by one with each subsequent character. This means that for the first letter 'S', we will shift it by 7 positions in the alphabet, resulting in a 'Z'. For the next letter 'E', we shift it by 8 positions, and so on, each time increasing the shift by one. The final encrypted message, by applying this shifting rule letter by letter, will give us a string of seemingly random characters. It's important to loop back to the start of the alphabet when the end is reached and to maintain the space between words.
To encrypt the message 'SEND SUPPLIES' using a alphabetic Caesar cipher with a shift of 7 and an additional shift of 1 after each character is encoded, we start by shifting the first letter 'S' by 7, which becomes 'Z'. We then shift the second letter 'E' by 8 (7 + 1), which becomes 'M'. Continuing this process, 'N' becomes 'V', 'D' becomes 'K', and so on. Therefore, the encrypted message is 'ZMVK LDJRSLA'.