For this experiment, I wrote both a symmetrical key string cipher, and a brute force algorithm to break it. I tested appending keys for security against my own method, which was to overlap encryption using prime number keys (compound key) for optimum security and compared it to a simple appended key (simple longer key).
Compound key outperformed the appended key in securing the data when tested with a brute force decoding program.
Data presented supports my hypothesis that a compound key offer a higher degree of security.
Method of encryption that will ensure a higher degree of security without making a more cumbersome key.
Science Fair Project done By Zachary M. Sohn