Cryptography is a method of storing and
transmitting data in a particular form so that only those
for whom it is intended can read and process the
data.The ability to transmit messages in a way that
cannot be recognized by adversaries has intrigued people
for centuries. In this paper, we outline a method that
uses Fermat's theorem to encode information in a way
that is very difficult to break. The idea is based on the
following consequence of that theorem.
Keywords : Cryptography, Encryption, Plane text.