  In this paper the author presents a new cryptographic technique to exclude
the repetitive terms in a message, when it is to be encrypted, so that it
becomes almost impossible for a person to retrieve or predict the original
message from the encrypted message. In modern world, cryptography hackers try
to break a code or cryptographic algorithm or try to retrieve the key, which is
needed to encrypt a message, by analyzing the insertion or presence of
repetitive bits / characters (bytes) in the message and encrypted message to
find out the encryption algorithm or the key used for it. So it is must for a
good encryption method to exclude the repetitive terms such that no trace of
repetitions can be tracked down. For this reason we apply SD-AREE cryptographic
method to exclude repetitive terms from a message, which is to be encrypted. In
SD-AREE method the repetitive bits / characters are removed and there is no
trace of any repetition in the message.
