Caesar cipher is a mono alphabetic cipher. It is also a type of substitution cipher in which each letter in the plaintext is "shifted" a certain number of places down the alphabet. However, Caesar cipher method did not last long because of its simplicity and lack of communication security. Therefore, we believe that strengthen the key mechanism should increase its complexity against the various cryptanalysis attacks. This paper proposes an enhanced Caesar cipher method through adopting two private keys that are tied to the character positions (i.e. odd and even) for encryption and/or decryption. The two private keys are mapped into one public key to be transferred to the recipient. At the end, the results show that the new cryptosystem is inevitable to cryptanalysis attack. And the cipher text is reduced in size and thus, memory space. The public key generation process is proven to be a one-way function utilizing binary matrices that are generated and shared between the two communicating parties.

In order to develop the cryptographic systems, it must always find new techniques to construct the strong cryptosystem, the proposed method try to employ the nature and animals activates in their society to propose the new algorithm for new cryptosystem, depending completely on the behaver of the wolfs communications between each other’s through howls to exchange the information between the wolf’s group to determine the locations and for warning each other’s against the dangers, in this paper propose a new algorithm through classify the characters of the message into groups and exchange the keys between the groups to be difficult on the cryptanalytics to follow the path of constructing the system, also using the different cryptanalysis techniques to evaluate the proposed algorithm.

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